JP2009166174A - Tatami mat padding cutting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tatami mat padding cutting apparatus, facilitating changing and adjusting an angle of a cutting blade. <P>SOLUTION: This tatami mat padding cutting apparatus includes: a frame 1 disposed in the cutting direction; a traveling member 2 traveling along the frame 1; a supporting base plate fixed to the traveling member 2 and provided with a plurality of circular-arc elongated holes 31 to 33 having a swivel center of one point passing a cutting surface in common; a cutter assembly including a base plate for a cutter, which is planted with a plurality of pins 41-43 penetrated through the plurality of circular-arc elongated holes 31-33 of the supporting base plate, respectively and a circular cutting blade B mounted on a frame 5 fixed to the base plate for a cutter and rotated by a motor; and a means for shifting the relative position of the base plate for a cutter to the supporting base plate taking the swivel center as an axis, wherein the angle of the circular cutting blade B is set by turning the base plate for a cutter. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a tatami floor cutting device applied to an edged tatami mat and an edged tatami mat, and is configured such that the inclination angle of a cutter for cutting around the tatami floor can be easily adjusted.

  When manufacturing tatami mats, the tatami floor folds are cut to a predetermined size before the tatami mat is sewn. In the case of a thick tatami mat (generally 30 mm to 60 mm), this cutting angle is cut to an acute angle of about 82 degrees (90-8 degrees) with respect to the surface of the tatami floor, and a thin tatami mat (generally 10 mm). Tatami floor is cut into an acute angle of about 77 degrees (90-13 degrees) with respect to the surface of the tatami floor, and the tatami mat is sewn.

As a device for cutting a tatami floor while removing a habit, a tatami floor cutting device disclosed in the following patent document or the like is conventionally known.
Japanese Patent Laid-Open No. 9-250229 JP 2001-314676 A

  In the case of a thick tatami mat, the tatami is cut at an acute angle of about 82 degrees (90-8 degrees) with respect to the surface of the tatami floor as shown in FIG.

  And when cutting a thick tatami floor ridge, as shown in FIG. 8 (a), the corner is cut at a right angle to the surface of the tatami floor, and the height H ( It is cut to an angle of about 82 degrees (90-8 degrees) from the lowered point to form a space that accommodates the bulge that occurs when the folds of the tatami surface are folded.

  In the case of a thin tatami floor (generally less than 10 to 30 mm), as shown in FIG. 8B, it is cut into an acute angle of about 77 degrees (90-13 degrees) with respect to the surface of the tatami floor. . In addition, a surface corresponding to a direction perpendicular to the gluteal muscle (direction in which the folds are folded) is cut into an acute angle of about 77 degrees, and a surface corresponding to a direction parallel to the gluteal muscle is cut into an acute angle of about 82 degrees. The tatami floor 92 is sewn on the tatami floor that has been cut in this way to produce a tatami mat.

  However, in the conventional tatami floor cutting apparatus, the attachment angle of the cutting blade is constant, and no means for changing or adjusting the cutting angle is provided.

  Therefore, the present invention has been conceived to solve such a problem, and an object thereof is to provide a tatami floor cutting apparatus configured to easily change and adjust the angle of the cutting blade. Is.

  The tatami floor cutting device of the present invention includes a frame arranged in a cutting direction, a traveling member that travels along the frame, and a plurality of circles that are fixed to the traveling member and share a single turning center that passes through the cutting surface. A support substrate having an arc-shaped elongated hole, a blade substrate in which a plurality of pins are respectively inserted into the plurality of arc-shaped elongated holes of the support substrate, and a pedestal fixed to the blade substrate A blade assembly comprising a circular cutting blade mounted on the blade and rotated by a motor, and means for shifting the relative position of the blade substrate with respect to the support substrate about the pivot center. The angle of the circular cutting blade is set by turning the substrate.

According to the tatami floor cutting apparatus of the present invention, the tatami mat is folded in a direction perpendicular to the rebar (the direction in which the reeds are folded) or in a direction parallel to the reeds (the direction parallel to the arrangement direction of the reeds). For example, since the change and adjustment of the cutting angle of the tatami floor can be easily performed, various tatami mats can be manufactured. That is, when manufacturing a thick tatami, for example, the angle of the cutting blade is set to an acute angle of about 82 degrees, and when manufacturing a thin tatami, for example, the angle of the cutting blade is set to an acute angle of about 77 degrees. Can be simplified.
A plurality of arc-shaped elongated holes provided in the support substrate share a single turning center that passes through the cut surface, so that a plurality of pins that are respectively inserted into the arc-shaped elongated holes are used for blades. Even if the thickness of the tatami changes due to the turning of the substrate, the position of the turning center is constant, so that a tatami floor cutting device with high cutting accuracy can be provided.
In addition, when manufacturing thin tatami mats, the center of rotation of the blade substrate can be positioned on the upper surface of the thin tatami by using a thickness correction spacer, and the cutting position on the upper surface of the tatami mat is the angle of the cutter. Even if it changes, it can be set as the structure which can perform the change and adjustment of the cutting angle of a tatami floor easily.

  When manufacturing a tatami mat, the tatami mat is sewed by cutting a tatami floor to a predetermined size before the tatami mat is sewn.

  Similar to the edged tatami mat, it is cut into an acute angle of about 82 degrees (90-8 degrees) with respect to the surface of the tatami floor 9, and the tatami surface 92 is folded in the direction perpendicular to the gluteal muscle (the direction in which the folds are folded). When thin tatami mats are manufactured, as shown in FIG. 8 (b), even if the folds are folded along the tatami floor 9 and sewn under the tatami floor, the upper part does not fit the tatami floor 9 exactly. The tatami mat 92 will bulge. And when the tatami mat is laid in the room, the tatami mat has a thickness of several millimeters and is stiff, so that the thin tatami floor 9 is warped due to the bulge and a part of the tatami mat rises. Sometimes.

  Therefore, when manufacturing a thin tatami without an edge, the tatami floor 9 is cut into an acute angle of about 77 degrees (90-13 degrees) with respect to the surface of the tatami floor 9 as shown in FIG. Thus, as shown in FIG. 8 (d), a space is formed to accommodate the bulge that is generated when the grass of the tatami mat 92 is folded.

  However, when the thickness of the tatami is thick, when the tatami mat produced by cutting the corner of the tatami floor 9 into an acute angle is laid in the room, the corner of the adjacent tatami mats are in line contact with each other. Since the corner portion is hard and easily damaged, when a thick tatami mat is manufactured, as shown in FIG. 8 (a), a part of the upper part following the surface of the corner portion is cut at a right angle, and FIG. As shown in (), adjacent tatami mats are in surface contact. Since the tatami floor 9 is thick and firm, the tatami floor 9 does not warp and rise like a thin tatami.

  In the case of a tatami floor that is thin even without a border, the tatami floor 9 rises when the tatami mats adjacent to the corners are in surface contact with each other. When laid in a room, the tatami floor is cut to a size that does not allow the adjacent tatami mats to butt against each other. Then, it is configured to form a space for storing the bulge of the tatami mat by cutting at about 77 degrees, so that the bulge of the tatami mat 92 can be accommodated.

  The cutting device for cutting a tatami floor according to the present invention is configured to be applicable to the cutting of such various tatami floors.

  As shown in the front view of FIG. 9 and the side view of FIG. 10, the cutting device of the present invention comprises a pair of I-type channels that can be moved by the same distance in the opposite directions on the base by a screw to change the interval. A frame 1 (see FIG. 2), a pair of traveling members 2 (see FIG. 2) that travel along the both frames 1, and a pair of blade assemblies A (see FIG. 1) attached to the traveling member 2. Composed.

  As shown in FIG. 1, a pair of upper and lower rails 11, 12 are provided on a frame 1 made of an I-type channel, and a traveling member 2 travels along the rails 11, 12. A support substrate 3 made of an iron plate is fixed to the traveling member 2. The frame 1 is moved up and down by a cylinder / piston 15 (see FIG. 10).

  As shown in FIG. 2, four arc-shaped elongated holes 31 to 34 are formed in the support substrate 3 fixed to the traveling member 2, and the arcs of these four arc-shaped elongated holes 31 to 34 are formed. All share a single pivot center P that passes through the cutting plane. This turning center P is set to a cut surface that is lowered from the surface of the tatami floor 9 by a certain dimension H (see FIG. 4). The support substrate 3 is further provided with four arc-shaped long holes 35 to 38 through which the fixing bolts 49 are inserted.

  Further, as shown in FIG. 3, the traveling member 2 is detachably attached with a cutting edge C for cutting a corner of the tatami floor at a right angle to a predetermined depth H or more in advance.

  As shown in FIG. 2, a floor retainer 13 having a mountain-shaped cross section for pressing the tatami floor 9 is fixed to the lower surface of the frame 1 made of an I-type channel. The floor retainer 13 is pierced into the tatami floor 9. A plurality of pins 14 that prevent the lateral displacement of the tatami floor 9 are planted downward.

  As shown in FIG. 1, the blade assembly A has a frame 5 fixed to a blade substrate 4, a pair of bearings 51, 51 are provided on the frame 5, and a rotary shaft 52 is inserted into both bearings 51, 51, A circular cutting blade B is attached to one end of the rotating shaft 52, and a first pulley 53 is fixed to the other end of the rotating shaft 52. Further, the motor 54 is mounted on the gantry 5, and the circular cutting blade B is rotated by hanging the belt 56 between the second pulley 55 and the first pulley 53 of the rotating shaft of the motor 54. Has been.

  As shown in FIG. 1, four guide pins 41 to 44 that are inserted into the four arc-shaped long holes 31 to 34 (see FIG. 2) of the support substrate 3 are implanted in the blade substrate 4. In addition, four screw holes 45 to 48 into which fixing bolts 49 inserted into the four long holes 35 to 38 of the support substrate 4 are screwed are formed.

  The four guide pins 41 to 44 planted on the blade substrate 4 are fitted and inserted into the four arc-shaped elongated holes 31 to 34 of the support substrate 3, respectively, so that the support substrate 3 and the blade substrate 4 are connected. The blade substrate 4 is brought into close contact with the support substrate 3 by screwing the fixing bolt 49 into the screw holes 45 to 48 of the blade substrate 4 through the four long holes 35 to 38 of the support substrate 3. Let it fix.

  In the fixed angle range (for example, 8 to 13 degrees) in which the four guide pins 41 to 44 of the blade substrate 4 can move in the four arc-shaped elongated holes 31 to 34 of the support substrate 3, In order to adjust the relative angle of the blade substrate 4 with respect to the substrate 3, the hexagon nut 40 protrudes from the back surface substantially in the middle of the two guide pins 41 and 44 of the blade substrate 4, and the angle adjustment fulcrum of the support substrate 3. Hex nuts 30 are also protruded on the back side.

  The hexagon nut 40 of the blade substrate 4 has a screw hole in a direction orthogonal to the axis, and the hexagon nut 30 of the support substrate 3 has a through hole in a direction orthogonal to the axis. A bar 6 is inserted between these two hexagon nuts 30 and 40.

  The hexagon nut 30 side of the support substrate 3 of the bar 6 is thinned by forming a stepped portion, inserted into the through hole of the hexagon nut 30, and an angle adjusting handle 61 is attached to the tip. The hexagonal nut 30 is sandwiched between the stepped portion and the handle 61 so that the bar 6 does not move in the axial direction even if the handle 61 is rotated.

  On the other hand, a screw 62 is formed on the hexagonal nut 40 side of the blade substrate 4 of the bar 6, and this screw 62 is screwed into the screw hole of the hexagonal nut 40. Then, by turning the handle 61, the distance between the two hexagon nuts 30 and 40 can be adjusted.

  The large hole 39 of the support substrate 3 shown in FIG. 2 is an escape hole for preventing the movement of the bolt with the hexagon nut 40 attached together with the blade substrate 4.

  When the four fixing bolts 49 are loosened and the handle 61 is turned to change the distance between the two hexagon nuts 30 and 40, the blade substrate 4 will draw an arc with respect to the stationary support substrate 3. Therefore, the circular cutting blade B can be turned around the turning center P as an axis.

  As shown in FIG. 4, when the blade substrate 4 is rotated so that the pins 41 to 44 are brought into contact with the ends of the arc-shaped long holes 31 to 34, respectively, the surface of the tatami floor 9 is about 82 degrees ( The cutting blade B can be set at an acute angle of 90-8 degrees, and can be applied to cutting a tatami mat floor with a rim.

  Moreover, as shown in FIG. 5, when the blade substrate 4 is rotated so that the pins 41 to 44 abut against the other ends of the arc-shaped long holes 31 to 34, the surface of the tatami floor is about 77. The cutting blade B can be set at an acute angle of 90 degrees (90-13 degrees) and can be applied to the cutting of a tatami floor that hits the direction perpendicular to the scissors of the tatami mat 92 (the direction in which the folds are folded).

  By turning the handle 61 and adjusting the distance between the hexagon nuts 30 and 40, the cutting blade B can be set at an arbitrary angle in the range of 8 to 13 degrees with respect to the surface of the tatami floor. After the angle of the cutting blade B is set, the four fixing bolts 49 are tightened to fix the blade substrate 4 to the supporting substrate 3.

  In this way, the cutting blade B is set to a predetermined angle, the frame 1 is lowered by the cylinder / piston 15 and the floor presser 13 is pressed against the tatami floor 9. At this time, a plurality of pins 14 planted downward on the floor presser 13 are inserted into the tatami floor 9 to fix the tatami floor.

  Then, by running the traveling member 2 along the rails 11 and 12 of the frame 1, the tatami floor 9 is cut at a right angle to a predetermined depth (H) or more by the cutting edge C, and then the cutting blade B is rotated. Cut diagonally.

  When cutting a thin tatami floor, as shown in FIGS. 6 and 7, a spacer 91 having a thickness H is sandwiched between the tatami floor 9 and the floor presser 13 so that the surface of the tatami floor 9 can be cut. Can be cut at an angle of about 82 degrees or about 77 degrees. Of course, the cutting blade B can be set at an arbitrary angle in the range of 8 to 13 degrees with respect to the surface of the tatami floor by turning the handle 61 to adjust the distance between the hexagon nuts 30 and 40.

  The cutting blade B can be a blade other than the rotating circular blade, for example, the cutting blade fixed like the cutting blade C or the cutting edge of the cutting tool for cutting the tatami floor is along the tatami section. It is also possible to make a swing blade that cuts while swinging in a state.

The front view which shows the driving | running | working member and support substrate in the tatami floor cutting apparatus of this invention, The front view which shows the blade assembly in the tatami floor cutting apparatus of this invention, Side view showing the blade assembly, The front view which shows the state which cuts a thick tatami floor by the angle of 82 degrees by the tatami floor cutting device of this invention, Front view showing a state in which a thick tatami floor is cut at an angle of 77 degrees, The front view which shows the state which cuts a thin tatami floor at an angle of 82 degrees, Front view showing a state in which a thin tatami floor is cut at an angle of 77 degrees, Sectional drawing which shows the form which cuts a tatami floor, The front view which shows the whole tatami floor cutting apparatus of this invention, It is a side view which shows the whole tatami floor cutting apparatus of this invention.

Explanation of symbols

1 frame
11, 12 rails
13 Floor presser
14 pin
15 Cylinder / Piston 2 Traveling member 3 Support board
31-34 Arc-shaped slot
30 Hexagon nut 4 Substrate for blade
40 Hex nut
41 ~ 44 Guide pin
45-48 threaded hole
49 Fixing bolt 5 Base
51 Bearing
52 Rotation axis
53, 55 pulley
54 Motor
55 Belt 6 Bar
61 Handle 9 tatami floor
91 Spacer
92 Tatami Mat P Pivot Center A Blade Assembly B Circular Cutting Blade C Cutting Edge

Claims (4)

A frame arranged in a cutting direction, a traveling member that travels along the frame, and a support that has a plurality of arc-shaped elongated holes that are fixed to the traveling member and share a single turning center that passes through the cutting surface. A substrate,
Circular cutting that is mounted on a blade substrate in which a plurality of pins that are respectively inserted into a plurality of arc-shaped elongated holes of the supporting substrate are implanted, and a gantry fixed to the blade substrate is rotated by a motor. A blade assembly consisting of a blade,
Means for shifting the relative position of the blade substrate with respect to the support substrate about the pivot center;
A tatami floor cutting apparatus characterized in that an angle of a circular cutting blade is set by turning the blade substrate.   2. The tatami floor cutting apparatus according to claim 1, wherein the traveling member is provided with a cutting edge that cuts the upper part of the tatami floor perpendicular to the surface prior to cutting the tatami floor with a circular cutting blade.   The tatami floor cutting apparatus according to claim 1, wherein a floor presser for pressing the tatami floor is provided on the lower surface of the frame.   The tatami floor cutting apparatus according to claim 1, wherein a spacer for correcting the thickness is provided on the lower surface of the floor presser and is applied to cutting a thin tatami floor.

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