JPH05411U - Tile cutter - Google Patents

Abstract

(57) [Summary] [Purpose] To make it possible to cut a tile at a position as close as possible to the edge of the tile. [Structure] A sliding member 12 is provided on a tile supporting surface 19 of a tile supporting base 10 so as to be movable back and forth along a straight line guide 11 in parallel with a space therebetween, and the circular cutter 2 is provided on the sliding member.
1, a tool head 13 having a tile retainer 22 and an operating arm 23 is supported by a fulcrum shaft 20, and the upper end of the tile support base corresponds to the lower side of the movement locus of the circular cutter due to the forward and backward movement. In a tile cutter in which a hard ridge 16 that coincides with the surface is provided and the tile supporting surfaces on both sides of the ridge are formed by cushioning materials 18, the above-mentioned tile presser is provided with the above-mentioned protrusion at an operating position in contact with the upper surface of the tile to be cut. Having wing plate-like portions 26, 27 which extend to both sides with respect to a vertical plane including a strip and whose lower surface is gently inclined downward,
The lower surfaces on both sides are formed with upper and lower steps e on both sides so that the height positions from the tile surface to be cut differ at positions equidistant from the vertical plane.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  This invention relates to a tile cutter mainly used in a tile construction site. It is a thing.

[0002]

[Prior art]

  Traditional tile cutters are spaced and parallel to the tile support surface of the tile support base. A sliding member is installed on the tile so that it can move back and forth along a straight line guide, and is parallel to the tile support surface. And a tool head on the sliding member by a fulcrum shaft that is perpendicular to the direction of forward / backward movement. Is rotatably supported, and its tool head is attached to the cutter support shaft parallel to the fulcrum shaft. Rotatable by a circular cutter supported more freely and an axis parallel to the fulcrum axis And the tile holder supported on the tool head, and the rotation and pivoting of the tool head around the fulcrum shaft. And an operation arm for moving back and forth with the sliding member, and the tile supporting base. The upper end of the circular cutter moves upward and downward on the board, corresponding to the lower side of the circular cutter movement trajectory. A hard ridge that matches the tile support surface is provided and tiles on both sides of the ridge The support surface is formed of a cushion material. And the above tile restraint is the tile to be cut Having symmetrical wing plate parts whose lower surface inclines toward both sides at the position of contact with the Is.

[0003]   The tile cutter with such a configuration can cut the tile along a desired straight line. It is a thing. The cutting operation is performed by placing a tile on the tile support surface and operating the arm. By moving the shape cutter along the guide, the planned cutting position on the surface of the tile Make a cut on the, and press the tiles on both sides of the cut. The tile is on the bottom Due to the presence of the ridges, it is cracked along the cut wound by bending. When breaking a tile As shown in FIG. 8, the state of is the both ends of the tile presser 1 having a symmetrical Y-shaped cross section. However, the tile 2 is in contact with both sides of the cut 3 and the ridge 4 is located immediately below the cut 3. ing. In the figure, 5 is a tile support shaft, 6 is a cushion material, and 7 is a tile support surface. , 8 are base bodies.

[0004]

[Problems to be solved by the device]

  Traditional tile cutters are designed to cut near the edge of the tile, There is a problem that it cannot be cut well. The reason is the composition of the tile holder and the cushion This is due to a defect. That is, as shown in FIG. 9, the lower surface of the tile retainer 1 From the shape, when you push it down, the right edge first contacts the part A on the top surface of the tile 2. Since the tile 2 is pushed down, the tile 2 uses the ridge 4 as a fulcrum to support the cushioning material 6 If the tilt does not become large enough, the tiles 2 breaks in part A. If this tilt is not large enough, the cushion If the material is thin or does not have adequate softness, and the tile is large Even if the right end far from the cutting position is lowered, the tile left compared to the amount of depression of the cushion material. This is the case when the amount of edge rise is small. If this inclination becomes large enough, This tilt causes the left edge of tile 2 to Since it abuts in the middle of the lower surface, tiles can be further lowered by lowering the tile retainer 1. 2 breaks at the location of the cut 3. In this way, make sure that the inclination is sufficiently large. In order to achieve this, the cushion material 6 may be formed thick, but this is suitable because the entire device becomes bulky. It is difficult to use.

[0005]   This device makes it possible to cut the tile as close as possible to the edge of the tile, making it bulky. The purpose is to provide a tile cutter that does not.

[0006]

[Means for Solving the Problems]

  This invention is a linear guide which is parallel to the tile supporting surface of the tile supporting base with a space. A sliding member is installed so that it can move back and forth along the A tool head having a retainer and an operation arm is supported by a fulcrum shaft, and the tile support base The upper end of the circular cutter moves upward and downward on the board, corresponding to the lower side of the circular cutter movement trajectory. A hard ridge that matches the tile support surface is provided and tiles on both sides of the ridge In a tile cutter whose support surface is formed of cushion material, On the both sides with respect to the vertical plane including the above-mentioned ridge at the working position in contact with the upper surface of the tile to be cut. Has a vane-shaped part that extends downward to the lower surface and the lower surface on both sides is the above-mentioned vertical plane. The upper and lower sides on both sides so that the height position from the tile surface to be cut differs at a position equidistant from It is characterized in that it is formed with a step.

[0007]   In addition, the step on the lower surface of the blade-like part for suppressing the tile can be attached to and detached from one of the blade-like parts. It is preferably intended to be formed by the attachment or detachment of active members.

[0008]

[Action]

  When cutting near the edge of the tile, wing plate shape should be placed on the edge side of the tile near the cutting line in advance. Place the tile on the tile support surface and cut it because the stepped side is located below the part If you scratch it and lower the tile retainer against the tile and press it against the tile edge, The bottom edge of the blade-like part on the stepped side is contacted, and the edge of the blade-like part on the other side is tiled. Contact with the upper surface of the substantially same time. If the tile restraint is lowered further, the tile will be cut and scratched. It is supported by the ridge at the lower position of the bottom, and both sides of the cut wound are pressed simultaneously from the upper side. As it will be, it will definitely break along the cut wound.

[0009]   If you cut well inside the edge of the tile, you have a traditional tile restraint It can be cut with a tool, but there is a state where the above step is due to attachment and detachment of the member By adopting the configuration of changing to, it becomes possible to easily deal with one device.

[0010]

【Example】

  A first embodiment of the present invention will be described with reference to FIGS. In the figure, 10 is Iil support base, 11 is a linear guide, 12 is a sliding member, and 13 is a tool head.

[0011]   As shown in FIGS. 2 and 3, the tile supporting base 10 is a metal plate-like base body. 14 is provided with a guide support portion 15, a ridge 16, and a cutter retreat recess 17 and is made of rubber. A cushion material 18 is attached. 19 is a flat tile support surface, which is a cushion The upper surface of the member 18 and the upper edge of the ridge 16 are formed to coincide with each other. Guide support 15 Is supported by a linear guide 11 consisting of two pipes with a circular cross section. The strips 11 are spaced above the tile support surface 19 and are parallel to the ridges 16. It is provided as follows.

[0012]   A sliding member 12 is slidably supported on the linear guide 11 along the guide. The tool head 13 is rotatably supported by the fulcrum shaft 20 on the sliding member 12. There is. The tool head 13 includes a circular cutter 21, a tile retainer 22, and an operation. An arm 23 is provided. The circular cutter 21 is rotatably supported by a shaft 24. The tile retainer 22 is swingably supported by a shaft 25. The operation arm 23 The tool head 13 is also moved so that it can be rotated about the shaft 20. One end is fixed to the tool head 13 so as to cut by pushing and pulling along the id, and the other end A grip is provided on the.

[0013]   The above structure is almost the same as the conventional tile cutter. What is different from the conventional one It is the structure of the tile retainer 22 and the sectional shape of the protrusion 16. These points are shown in Figure 1. It is like this. That is, the tile retainer 22 contacts the upper surface of the tile 2 to be cut. The lower surface extending to both sides with respect to one vertical plane including the upper end of the ridge 16 at the working position Has wing plate-like portions 26 and 27 that are gently inclined downward, and lower surfaces 28 and 29 on both sides thereof are upward. Both sides so that the height position from the tile surface to be cut differs at a position equidistant from the vertical plane. Are formed with an upper and lower step e.

[0014]   The cross-sectional shape of the ridge 16 is such that the upper portion of the ridge has a rounded shape that is convex upward. With a uniform cross-section along the longitudinal direction of the ridge and at a right angle to the tile support surface. It is formed so as to be one of the two divided by the surface.

[0015]   The tile cutter configured in this way is used like the conventional one, The edge of the tile can be cut with a narrower width than the conventional one. First of all, the cutting operation As shown in 3, the position where the tile 2 to be cut is to be cut is set to the position of the ridge 16. Place them on the tile support surface in line with each other, and use the operation arm 23 to move the circular cutter 21. While moving it while pressing it against the upper surface of the ile 2, the cutting scratch 3 is made. This place As shown in FIG. 1 and FIG. 2, the cut width of the tile is such that one end of the tile 2 has a vane-shaped portion 2 It has a narrow width such that it is located below 6. Next, as shown in FIG. The tool head 1 is moved to a position where the circular cutter 21 enters the cutter retracting recess 17 by 23. 3 and move the operation arm 23 to tie the tile retainer 22. Press on Le2. At this time, the tile retainer 22 has a step e as shown in FIG. Therefore, both sides contact the tile 2 almost at the same time. That is, the lower surface 28 of the blade 26 Midway of the tile 2 comes into contact with the upper corner of the end of the tile 2, and the outer edge of the wing plate-like portion 27 makes the tile 2 Is in contact with the upper surface of. If the tile retainer 22 is further lowered in that state, Rule 2 hardly tilts and bends while being supported on the tile support surface. It is cracked at the position of the cut 3 under the action.

[0016]   The cross-sectional shape of the upper end of the ridge 16 has an edge effect more than the conventional one having a roundness. Is larger and has a longer life against wear than a so-called edge with a flat surface on both sides. Is a long one.

[0017]   In FIG. 1, the tile width of the edge of the tile 2 is best controlled by the tile retainer 22. The width is shown. If the cutting width becomes wider than this, the upper corner of tile 2 Since the position in contact with the lower surface 28 changes outward, when the tile retainer 22 descends. The lower surface 28 first comes into contact with the tile, and then the blade 27 comes into contact with the tile. Also , And vice versa when the cutting width becomes narrower than this. Therefore, tile 2 is In this example, if the tiles are not tilted too much, It can be cut well.

[0018]   A second embodiment will be described with reference to FIG. The state of the figure shows that the cutting position of tile 2 is tied. Tiles 22 and other parts of the first embodiment when they are quite inside from the edge of Using the minutes as it is, lower both wing plate-like parts 26 and 27 until they contact the upper surface of the tile 2. It is in the lowered state, and tile 2 is tilted considerably. This is because the blade 26 is outward This is not preferable because there is a risk that the part of the tile that touches at the edge will be damaged. Therefore, the second In this embodiment, the shoe 30 is put on the blade 27 of the first embodiment. is there.

[0019]   The shoe 30 has an inner hole corresponding to the vane-shaped portion 27, as shown by a phantom line in the drawing. This is fitted in the blade 27 and fixed by the set screw 31. If you prepare some of the different thickness of the lower surface of the shoe 30 having such a structure, , The tile retainer 22a is lowered by exchanging it according to the cutting width of the tile. Both wings can touch the tile at the same time, and Can be cut easily. It should be noted that the illustrated shoe 30 has a lower surface symmetrical to the lower surface 28a. It is used when the cutting width is larger than the protruding amount of the blade-like portions 26, 27. It is a thing.

[0020]   A third embodiment will be described with reference to FIG. The tile retainer 22b of this embodiment has two sides The step e is formed by forming the wing plate-shaped portion of the To have the following. How many Shu 32 have different bottom thickness Or be prepared. 33 is a set screw. 16a is a ridge having a symmetrical shape with the ridge 16. Is.

[0021]   In the case of this embodiment, when the cutting width of the tile is smaller than the protruding amount of the blade-like portion, Use an appropriate one according to the degree, and when the tile restrainer 22b is lowered, One of the blades is brought into contact with the tile 2 at the same time. This changes the cutting width. Good cutting can be performed according to the change.

[0022]   In the practical test of the third embodiment, a tile having a thickness of 5 mm was made to have a width of 6 to 7 mm and a thickness of An 8 mm tile could be cut to a width of 10 mm. In addition, in the conventional tile cutter, A tile with a thickness of 5 mm has a width of 10 mm, and a tile with a thickness of 8 mm has a width of about 14 mm. It was the limit.

[0023]

[Effect of device]

  According to this invention, one side of the tile restraining lower surface has a step with respect to the other side. Since it is configured like this, when cutting the tile with a narrow width, press the tile with the tile restrainer. Since both sides contact at the same time when cutting, it cuts well with a narrower width than conventional ones. To be done. Also, in order to form the step, another member is attached or removed. When this is done, a single tile cutter can handle a large or small cutting width.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view of a main part of a first embodiment of the present invention.

FIG. 2 is a partial sectional front view of the embodiment.

FIG. 3 is a plan view of the same embodiment.

FIG. 4 is a partial cross-sectional front view of the same embodiment in a state different from that of FIG.

5 is a sectional view taken along line S-S in FIG.

FIG. 6 is an enlarged sectional view similar to FIG. 1 for explaining a second embodiment of the present invention.

FIG. 7 is a sectional view similar to FIG. 1 of the third embodiment of the present invention.

FIG. 8 is an enlarged cross-sectional view perpendicular to the ridges 4 showing the operation state of the tile holding of the conventional tile cutter.

FIG. 9 is a sectional view similar to FIG. 8, showing an operating state in the case where the cutting width of the tile cutter of the same tile cutter as in FIG. 8 is small,

[Explanation of symbols]

2 tiles 3 cut wound 10 tile support base 11 Straight guide 12 Sliding member 13 tool head 16 ridges 18 Cushion material 19 tile support surface 20 fulcrum axis 21 circular cutter 22 tile suppression 22a tile suppression 22b tile suppression 23 Operation arm 26 Veneer (left) 27 Vane (right) 28 Lower surface (left) 29 Bottom surface (right) 30 members (shu) 32 members (shu) e Step

Claims (3)

[Scope of utility model registration request] 1. A tile supporting surface of a tile supporting base is provided with a sliding member that is movable in parallel with a straight line guide at a distance from each other. The sliding member has a circular cutter, a tile retainer, and an operating arm. Support the tool head on the fulcrum shaft,
The tile support base is provided with a hard ridge corresponding to the lower side of the movement locus of the circular cutter due to the advancing and retreating movement, and the tile support surfaces on both sides of the ridge are cushion materials. In the tile cutter formed by the above, the tile retainer has a blade plate portion that extends to both sides with respect to a vertical plane including the protrusion and has a lower surface that is gently inclined downward at an operating position in contact with the upper surface of the tile to be cut. ,
A tile cutter characterized in that lower surfaces on both sides thereof are formed with upper and lower steps on both sides so that the height positions from the tile surface to be cut are different at positions equidistant from the vertical plane. 2. The tile cutter according to claim 1, wherein the step of the lower surface of the blade-plate-shaped portion for suppressing the tile is formed by attaching or detaching a member detachable to or from one blade-plate-shaped portion. Characteristic tile cutter. 3. The tile cutter according to claim 1, wherein an upper portion of the protrusion has a rounded shape having a convex upward shape and a uniform cross-section in the longitudinal direction. A tile cutter, characterized in that the tile cutter is formed so as to be one of two divided along a plane that is parallel to the tile support surface and that is perpendicular to the tile support surface.