Tile cutter with movable crowbar

Abstract

Tile cutter with a support frame (1) having a support surface (4) for supporting a tile to be cut, with a support body (18) forming the support surface (4), which has a bore (20) with a substantially circular outline, in which a crushing support (2) is arranged which can be displaced upwards from below transversely to the direction of extension of the support surface (4), and with a breaking member (5) which can be displaced from above in the direction of the support surface (4) in order to apply a breaking force, characterized in that a stop (13) projects from a cylinder section (9) of the breaking support (2) carrying a breaking rib (8), which stop engages in a recess (12) adjacent to the bore (20).

Description

[0001] The invention relates to a tile cutter according to the preamble of claim 1.

[0002] EP 0 255 460 A1 describes a tile cutter of this type. There, a breaker support is formed from the end of an angled lever, which can be pivoted when a carriage with a breaker mechanism is moved.

[0003] DE 195 34 610 A1 discloses a tile cutter in which a tile can be placed on the support surface of a support body. A cutting tool is used to cut a notch into the tile, along which the tile can be split into two pieces. To split the tile, a breaker is placed against the underside of the tile. This breaker is inserted into a hole in the support body and, via an eccentric disc, is moved from a concealed position into a functional position in which a tip protrudes above the support surface. A breaking force is exerted on the tile from above by a breaking element, causing the tile to break along the notch.

[0004] ES 2 028 701 A6 describes a crushing body that can be moved along an inclined plane from a lowered position into a functional position.

[0005] The invention is based on the object of further developing the tile cutter characterized at the outset in a manner that is advantageous for use.

[0006] The problem is solved by the technical solution features specified in the claims.

[0007] Firstly and essentially, it is proposed that a stop protrudes from a cylindrical section of the crushing support carrying a crushing rib, which stop engages in a recess adjacent to the bore. It is further proposed that the crushing support be displaceable from bottom to top by a slide, wherein the slide is displaceable transversely to the direction of displacement of the crushing support, wherein the crushing support is supported on a first, lower support level in a first operating position of the slide and on a second, higher support level in a second operating position. The two support levels form support surfaces that run parallel to the support surface on which the tile lies. The direction of displacement of the crushing support is perpendicular to the plane extension of the support surface. The two flat support levels are connected to one another via an inclined surface.The crushing support can be a substantially cylindrical body with a flat underside which rests on a support level in each operating position. By moving the slider in a plane parallel to the plane of the support surface and perpendicular to the direction of displacement of the crushing support, the crushing support can be moved vertically from a non-functional position to a functional position. In doing so, an edge of a crushing body forming the crushing support slides along the inclined surface between the two support levels. During the upward displacement, a crushing rib arranged on the head of the crushing support moves from a non-functional position below the level of the support surface to the functional position in which the crushing rib lies above the support surface. A tile resting on the support surface, which has previously been notched, for example using a cutting wheel, is slightly lifted in the process.The breaking element, which is guided along guide rails together with a cutting wheel or another cutting means, can then be lowered by pivoting a pivoting lever. The breaking element applies a breaking force to each of the two surface sections of the tile separated by the breaking notch, causing the tile to break along the notch. For this purpose, the breaking element is preferably designed as a breaking punch with a substantially V-shaped underside which, due to the V-shape, forms two projections spaced apart from each other and from the breaking notch, which act on the tile to be broken on both sides of the breaking rib. The tile is supported below the breaking notch by the breaking body or its breaking rib. The breaking support is preferably located in a bore in the support body, whereby the support body is preferably made of wood.A stop can protrude from the preferably circular-cylindrical outer wall of the cylindrical section of the crush support, which engages in a recess that adjoins the bore. As a result, the crush support is arranged non-rotatably in its associated bore. A return spring is preferably provided, with which the crush support can be displaced downwards. The return spring can be a compression spring through which a retaining pin extends. The retaining pin is inserted with one fastening end into a recess in the crush support. There it is screwed into a threaded bore with a threaded section. The support body can be fastened to a base support formed from a square tube, which is located below the support body and extends in the direction of displacement of the slide. The return spring and the retaining pin holding it can be located in the square cavity of the base support.The slider extends between the base support and the bottom of a recess in the underside of the support body. The slider has a material thickness that corresponds at least to the height difference between the two support levels. The two support levels or the flat surface sections forming the support levels can be arranged in an elongated recess in the slider. The material thickness of the slider, i.e. the plate thickness of a plate-shaped slider, is then slightly greater than the distance between the two support levels. A slot can run in the center of the recess, through which the retaining pin passes. This longitudinal slot divides the slope into two partial surfaces and extends into the area of ​​the support levels. A handle engages the slider, which can move the slider transversely to the direction of travel of the carriage. The handle is accessible from the longitudinal edge of the support body.The support frame has a total of four feet with which it can be placed on a flat surface.

[0008] An embodiment of the invention is explained below with reference to the accompanying drawings. They show: Fig. 1 a perspective view of the tile cutter according to the embodiment, Fig. 2 a side view of the tile cutter, Fig. 3 a top view of the tile cutter, Fig. 4 a bottom view of the tile cutter with an operating position of the plate 3, in which the breaker support 2 assumes its functional position, Fig. 5 the section along the line VV in Fig. 3 with the crowbar 2 in the functional position, Fig. 6 an exploded view of the part of the tile cutter comprising the breaker support 2 and the plate 3, Fig. 7 a representation according to Fig. 4, but with shifted plate 3, Fig. 8 a representation according to Fig. 5, but with the crowbar in the non-functional position according to line VIII-VIII in Fig. 7, Fig. 9 the section along the line IX-IX in Fig. 5, Fig. 10 enlarges the section X in Fig. 8, whereby the crush support 2 assumes its non-functional position and Fig. 11 a representation according to Fig. 10 with the crushing support 2 in the functional position and the crushing organ 5 lowered.

[0009] The tile cutter has a wooden support body 18 that extends across the entire base of the tile cutter, which has the shape of an elongated rectangle. Rail supports 32 made of metal or plastic are located on the respective narrow sides of the support body 18. The rail supports 32 are each connected to a narrow side of the support body 18 via screws and an angle plate. A base support in the form of a square tube 30 extends beneath the support body 18 and connects the two rail supports 32 to each other. The rail supports 32 are each connected to one end of the base support 30 via screws.

[0010] Each of the two rail supports 32 has a support arm projecting transversely to the plane of extension of a support surface 4 formed on the upper side of the support body 18, to which two guide rails 23 are attached, running parallel to each other and parallel to the base support 30. The guide rails 23 extend at a vertical distance parallel to the plane of extension of the support surface 4.

[0011] A carriage 24 is guided along the two guide rails 23, and in particular between the two guide rails 23. The carriage 24 has rollers that engage and are guided in C-profiles of the guide rails 23. The carriage 24, which carries a cutting wheel 26 and a breaking element 5, is located between the two guide rails 23. By pivoting a handle arm 25, which is fixedly but rotatably connected to the carriage 24, the cutting wheel 26 or the breaking element 5 can be displaced vertically. In the area of ​​one of the two narrow sides of the support body 18 there is a head stop 27 for positioning a tile to be cut with the tile cutter. A longitudinal stop 28 is also provided, which extends parallel to the two guide rails 23. Approximately in the middle area between the two guide rails 23 there is a corner holder for receiving a corner of a tile into which a diagonal cut is to be made.At a distance from the head stop 27, also in the longitudinal center of the support body 18, i.e. in particular centrally between the two guide rails 23, there is a bore 20 in which a crush support 2 is located. The crush support 2 has a cylindrical section 9. The cylindrical section 9 has a circular outline. The upward-facing side of the crush support 2 forms a crushing rib 8 that extends parallel to the guide rails 23. An extension 13 protrudes from a peripheral wall of the cylindrical section 9 and engages in a recess in the bore 20, so that the crush support 2 lies non-rotatably in the bore 20.

[0012] One end of a retaining pin 10 is screwed into a downwardly open threaded hole in the crush support 2. The retaining pin 10 passes through the upwardly facing wall of the square tube 30 and has a head at its other end located in the cavity of the square tube 30, on which a return spring 11 formed by a compression spring is supported, the other end of which is supported on the inner wall of the square tube 30. Against the force of the return spring 11, the crush support 2 can be moved from a non-functional position ( Fig. 10), in which the apex of the crushing rib 8 lies below the support surface 4, into a functional position ( Fig. 11) in which the crushing rib 8 projects beyond the support surface 4.

[0013] A slider 3 is provided for moving the crush support 2 between the non-functional position and the functional position. The slider 3, formed in the exemplary embodiment from a plastic plate, can be moved in a recess 19 assigned to the underside of the support body 18. It can be moved by means of a handle 21 in a direction transverse to the direction of extension of the guide rail 23. Fastening screws are provided which pass through a longitudinal slot in the handle 21 or pass through the longitudinal slots 16 of the slider 3. The longitudinal slots 16 of the slider 3 or the longitudinal slot of the handle 21 thus form guide slots. By means of a fastening screw 22, one end of the handle 21 is connected to a fastening opening 17 in a corner of the plate, which has a rectangular outline and forms the slider 3.

[0014] The other end of the handle 21 is formed by an angled portion and is located in the region of the longitudinal edge of the support body 18.

[0015] The slide 3 has an elongated recess 14 with rounded narrow sides and straight long sides ( Fig. 6). In the recess 14, there are two levels 6, 7, which extend along different height levels. One level forms a lower support level 6 and the other level an upper support level 7. The two support levels 6, 7 are connected by means of a slope 33. The slope is a curved surface along which a lower edge of the crushing support 2 can slide when the slider 3 is moved ( Fig. 5 and Fig. 8). The inclined surface 33 is divided into two partial surfaces by a slot 15. The slot 15 has two ends, each located approximately in the middle of the support levels 6, 7. The retaining pin 10 extends through the slot 15.

[0016] The material thickness of the slider 3, which can have a stiffening rib arrangement on its wide side surfaces facing away from each other, is greater than the height difference between the two support levels 6, 7. This thickness of the slider 3 corresponds to the depth of the recess 19. The recess 19 is crossed by the base beam 30, which is designed as a square tube. The outer wall of the base beam 30 forms a support surface for the slider 3. A force applied to the breaker support 2 and directed vertically downwards is thus transmitted via the support surface 7 or the support surface 6 into the plate formed by the slider 3. The slider 3 transmits the force further into the base beam 30. The underside of the base beam 30 is spaced vertically upwards on the standing surface, which runs through the free ends of the feet 31. The base beam 30 thus extends suspended above the floor surface on which the tile cutter stands.

[0017] The tile cutter works as follows: In a basic position, the crushing support 2 is in a lowered, non-functional position in which the flat underside of the crushing support 2 rests on the lower support level 6. A tile 34 is placed on the support surface 4 and provided with a breaking notch by longitudinal displacement of the carriage 24 with the cutting wheel 26 lowered.

[0018] Subsequently, by moving the handle 21, the crushing support 2 is brought into its functional position. The inclined surfaces 33 of the slide 3, which is thereby displaced transversely to the direction of extension of the guide rails 23, raise the crushing support 2 into the functional position, in which the breaking rib 8 has slightly lifted the tile below the fracture line. In the functional position, the underside of the crushing support 2 rests on the upper support level 7. The breaking rib protrudes over the support surface 4 and has slightly lifted the tile at the location of the breaking rib 8.

[0019] To divide the tile 34, the breaking element 5 is brought to the level of the breaking support 2 by a linear displacement of the carriage 24 and lowered by pivoting the handle arm 25. Two downwardly projecting pressure zones of the breaking element 5 each press against the top of the tile at two points remote from the breaking notch. The resulting torque applied to the breaking rib 8 causes the tile 34 to break along the breaking notch.

[0020] The above statements serve to explain the inventions covered by the application as a whole, which each independently develop the state of the art by at least the following combinations of features, namely: A tile cutter, which is characterized in that the slider 3 is displaceable transversely to the direction of displacement of the crushing support 2, wherein the crushing support 2 is supported on a first low support level 6 in a first operating position of the slider 3 and is supported on a second, higher support level 7 in a second operating position.

[0021] A tile cutter, which is characterized in that the breaking support 2 has a breaking rib 8 which can be brought by the vertical displacement above the support plane of the support surface 4 and / or has a cylinder section 9 which is the carrier of the breaking rib 8.

[0022] A tile cutter, which is characterized by a return spring 11, against the restoring force of which the breaker support 2 can be displaced vertically, wherein the return spring 11 is supported in particular on the head of a retaining pin 10 and on an inner wall of a square tube 30 forming a base bar.

[0023] A tile cutter, which is characterized by a retaining pin 10 which passes through the return spring 11, which is designed in particular as a compression spring and which is inserted in particular in a recess 12 of the breaker support 2.

[0024] A tile cutter, which is characterized in that the crushing support 2 is displaceably mounted in a bore 20, which has a substantially circular outline, of a support body 18, which is made in particular of wood, which support body 18 forms the support surface 4, wherein it is provided in particular that a stop 13, which protrudes in particular from the cylinder section 9 of the crushing support 2, engages in a recess adjacent to the bore 20.

[0025] A tile cutter, which is characterized in that the slider 3 is a flat piece, made in particular of plastic, which has a two-stage recess 14, wherein the recess 14 forms the first support level 6 and the second support level 7 and the two support levels 6, 7 are connected to one another in particular via an inclined surface 33.

[0026] A tile cutter, characterized in that the retaining pin 10 passes through a longitudinal slot 15 which divides the inclined surface 33 into two partial surfaces and extends from the lower support level 6 to the upper support level 7.

[0027] A tile cutter characterized in that the material thickness of the slider 3 is greater than the height difference between the two support levels 6, 7.

[0028] A tile cutter, which is characterized by a recess 19 on the underside of the support body 18, in which the slider 3 can be displaced in a direction transverse to the direction of extension of guide rails 23, in particular by means of a handle 21 acting on the slider 3, on which guide rails 23 a carriage 24 can be displaced, which carries a cutting wheel 26 and the breaking element 5, wherein the breaking element 5 can be displaced downwards in particular by pivoting a handle arm 25, wherein it is provided in particular that an underside of the slider 3 is supported on an outer wall of the base bar 30. List of reference symbols: 1 support frame 2 crowbars 3 sliders 4 support surface 5 vomiting organ 6 support level 7 support level 8 Crushing ribs 9 Cylinder section 10 retaining pin 11 Return spring 12 Recess 13 Stop, extension 14 Recess 15 slot 16 Longitudinal slot 17 Mounting hole 18 support bodies 19 Recess 20 holes 21 Handle 22 Fixing screw 23 Guide rail 24 sleds 25 handle arm 26 Cutting wheel 27 Head stop 28 Longitudinal stop 29 Corner shot 30 square tube, base support, base spar 31 feet 32 rail supports 33 Inclined surface 34 tiles

Claims

[1] Tile cutter with a support frame (1) having a support surface (4) for supporting a tile to be cut, with a support body (18) forming the support surface (4), which has a bore (20) with a substantially circular outline, in which a crushing support (2) is arranged which can be displaced upwards from below transversely to the direction of extension of the support surface (4), and with a breaking member (5) which can be displaced from above in the direction of the support surface (4) to apply a breaking force, characterized by that a stop (13) projects from a cylinder section (9) of the crushing support (2) carrying a crushing rib (8), which stop engages in a recess (12) adjacent to the bore (20). [2] Tile cutter according to claim 1, characterized by that the crushing support (2) can be moved from bottom to top by a slider (3). [3] Tile cutter according to one of the preceding claims, characterized by a return spring (11), against the restoring force of which the crush support (2) can be displaced vertically, wherein the return spring (11) is supported in particular on the head of a retaining pin (10) and on an inner wall of a square tube (30) forming a base beam (30). [4] Tile cutter according to claim 3, characterized by a retaining pin (10) passing through the return spring (11), which is designed in particular as a compression spring and which is inserted in particular into a recess (12) in the crush support (2). [5] Tile cutter according to one of claims 2 to 4 as far as dependent on claim 2, characterized by that the crushing support (2) is supported on a first, low support level (6) in a first operating position of the slide (3) and on a second, higher support level (7) in a second operating position. [6] Tile cutter according to one of claims 2 to 5 as far as dependent on claim 2, characterized byin that the slide (3) is a flat piece, made in particular of plastic, which has a two-stage recess (14), wherein the recess (14) forms the first support level (6) and the second support level (7) and the two support levels (6, 7) are connected to one another in particular via an inclined surface (33). [7] Tile cutter according to one of claims 3 to 6 as far as dependent on claim 3, characterized by that the retaining pin (10) passes through a longitudinal slot (15) which divides an inclined surface (33) into two partial surfaces and extends from the lower support level (6) to the upper support level (7). [8] Tile cutter according to one of claims 2 to 7 as far as dependent on claim 2, characterized by that the material thickness of the slider (3) is greater than the height difference between the two support levels (6, 7). [9] Tile cutter according to one of claims 2 to 8 as far as dependent on claim 2, characterized bya recess (19) on the underside of the support body (18), in which the slide (3) can be displaced, in particular by means of a handle (21) acting on the slide (3), in a direction transverse to the direction of extension of guide rails (23), on which guide rails (23) a carriage (24) can be displaced, which carries a cutting wheel (26) and the breaking member (5). [10] Tile cutter according to one of claims 3 to 9 as far as dependent on claims 2 and 3, characterized by that the breaking member (5) can be displaced downwards by pivoting a handle arm (25) and / or that an underside of the slider (3) is supported on an outer wall of the base beam (30).

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