JPS62601Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is a tatami face cutting machine that attaches a new tatami face to the old tatami floor and then cuts the width of the tatami face to the specified width when replacing tatami mats used in homes and other places. Regarding.

Since tatami mats are manufactured to fit the actual dimensions of the room in which they are laid, each tatami mat has a slightly different shape. Therefore, when replacing tatami mats that have been used at home or elsewhere, fix both ends of a new tatami mat that is wider than the old tatami mat to the stile at both ends of the old tatami mat, and then adjust the width of the new tatami mat to the stile. It is cut to match the shape of the tatami floor. If there is a gap between the tatami and the sill because the tatami shrinks during use or the dimensions of the room are out of order, then the tatami face of the area where the gap is created should be placed higher than the tatami floor. They were cut to a slightly wider width, and when backstitching, scraps of tatami covers and rice straw were inserted as stuffing between the sides of the tatami floor and the edge cloth.

However, in the past, after fixing the tatami mat to the tatami floor, marks were made at both ends and the center of the tatami mat in the length direction according to the size of the gap mentioned above, a ruler was aligned with these marks, and a knife was placed on the ruler. Since the tatami surface was cut using the cutting resistance, the rushes flowed in the direction of movement of the knife due to the cutting resistance and returned to their original shape after cutting, resulting in large errors and the disadvantage that cutting required skill. In addition, errors were also caused by the angle of inclination of the knife when it was placed against a ruler. To provide a tatami face cutting machine that does not require marking on tatami mat faces, does not require skill, and can be easily carried.

In other words, this idea consists of placing a motor with a speed reduction device almost horizontally on a base plate that is slidable on the surface of the tatami mat, and attaching a disc cutter to its output shaft so that its lower cutting edge is above the The base plate is fixed so as to protrude downward, and a side sliding frame is provided on the side of the base plate that can slide parallel to the output shaft, and the side sliding frame is provided with a side sliding frame that can be slid below the disc cutter. This tatami surface cutting machine is characterized in that a guide plate in contact with the side surface of the tatami floor is fixed via an arm, and a sliding control device for the lateral sliding frame is provided on the base plate.

An embodiment of this invention will be described below with reference to the drawings.

In FIG. 1, a substantially rectangular base plate 1 is formed to be able to slide freely on the surface of a tatami facing 3 fixed on a tatami floor 2 (see FIG. 2). The motor 4 with a reduction gear has its output shaft 4a.
is placed and fixed in the width direction of the tatami facing 3. That is, the motor 4 has a sliding arm 4b that projects forward, a handle 4c that projects rearward and upward (see FIG. 3), and an upper half of the disc cutter 5 that is fixed to the output shaft 4a. The sliding arm 4b is connected to the upper end of the bracket 7 erected on the base plate 1 by a pin 8 (see FIG. 3), and the sliding arm 4b is connected to the upper end of the bracket 7 erected on the base plate 1 by a pin 8 (see FIG. 3). The end thereof is fixed to the upper end of the support column 9, which is erected on the base plate 1, with a bolt 10. Note that the above-mentioned support 9 has a long hole 9a.
A cutter hole 1a (see FIG. 2) is bored in the base plate 1 by changing the height of the rear end of the cutter cover 6 (see FIG. 1).
The length by which the cutting edge at the lower end of the disc cutter 5 projects downward can be adjusted.

On the other hand, guides 1 are attached to each of the four corners of the base plate 1 above.
1 is fixed, and a sliding bar 1 in the width direction is attached to each of a pair of left and right guides 11, 11 located at the front and a pair of left and right guides 11, 11 located at the rear.
2 and 12 are slidably inserted therethrough, and the front and rear ends of a lateral sliding frame 13 in the front and rear direction are respectively fixed to the lateral protruding ends of these front and rear sliding bars 12 and 12. Threaded bearings 13a and 1b are provided at the longitudinal center of the side sliding frame 13 and at the center of the side edge of the base plate 1, respectively, to protrude upward.
Threaded portions 14a and 14b carved at both ends of the screw shaft 14 are screwed into a and 1b, respectively, and by rotating the screw shaft 14 with a knob 15, the side sliding frame 13 is connected to the output shaft. 4
It is designed to be able to slide in a direction parallel to a.
Note that one of the threaded portions 14a and 14b of the threaded shaft 14 is formed with a left-hand thread, and the other is formed with a right-hand thread. The side sliding frame 13 also has a pair of front and rear arms 16, 1 positioned below and parallel to the sliding bars 12, 12.
The outer ends of these arms 16,1 are fixed.
Both front and rear ends of a guide plate 17 (see FIG. 4) in the front and back direction that contacts the side surface 2a of the tatami floor 2 are fixed to the inner end of the tatami mat floor 2, and the center portion of this guide plate 17 is located directly below the disk cutter 5. It is now located in

In the above structure, after fixing a new tatami mat 3 to the old tatami mat 2 in the same manner as before, the base plate 1 is placed near the side edge of the tatami mat 3 and the motor 4 is driven to drive the side surface 2a of the tatami mat 2. When the handle 4 is pushed forward (upward in FIG. 1) while the guide plate 17 is brought into contact with the tatami surface 3, the side edge 3a (see FIG. 1) of the tatami facing 3 is cut and separated by the disc cutter 5. In this case, since the cutting and separation is performed by the disk cutter 5 that rotates at high speed, the rush hardly flows forward as it would when cutting with a kitchen knife. Therefore, when the guide plate 17 is set directly below the disc cutter 5, the tatami facing 3 can be accurately trimmed along the edge of the tatami floor 2. The position of the disc cutter 5 in the width direction relative to the guide plate 17 can be adjusted by rotating the knob 15, so by rotating the knob 15 while advancing the base plate 1, the cut end of the tatami facing 3 can be adjusted to the tatami floor. By attaching an angle scale to the boss 15a of the knob 15 or a length scale to the sliding bar 12 in advance, the side surface 2a of the tatami floor 2 and the sill can be moved in and out from the edge of the tatami floor 2. The distance between the edge of the tatami bed 2 and the cut end of the tatami face 3 can be freely set depending on the size of the gap created between the tatami mats and the tatami mat.
Note that in the above embodiment, one threaded portion 14a of the screw shaft 14 has a left-handed thread, and the other threaded portion 14b has a left-handed thread.
Since right-hand threads are formed on each of the parts, the amount of rotation of the knob 15 can be halved compared to the case where there is only one threaded part.

In the above embodiment, a plurality of rollers may be arranged on the lower surface of the base plate 2 to facilitate sliding of the base plate 1. Further, in the above embodiment, the sliding control device for the side sliding frame 13 is configured by the screw shaft 14, but the side sliding frame 13 can be controlled in the width direction by a cam mechanism, a link mechanism, etc. Any mechanism that can slide can be used. However, it is desirable that the amount of rotation of the knob 15 and the amount of movement of the side sliding frame 13 have a linear relationship. It goes without saying that the shape and number of the sliding bars 12 and the mounting means for the motor 4 can be changed as appropriate.

As explained above, in this invention, the tatami face is cut by a disc cutter, and the widthwise position of the disc cutter can be adjusted with reference to the side surface of the tatami floor while moving the disc cutter forward. from,
When cutting the tatami mat, rushes do not flow out, so dimensional errors are greatly reduced, there is no need to mark the tatami mat in advance, no skill is required, and it is easy to carry.

[Brief explanation of drawings]

Fig. 1 is a plan view of an embodiment of this invention, Fig. 2 is a front view of Fig. 1, Fig. 3 is a sectional view taken along the line - - of Fig. 2, and Fig. 4 is a plan view cut along - line of Fig. 3. It is. 1: Base plate, 2: Tatami floor, 2a: Side, 3: Tatami surface,
4: Motor, 4a: Output shaft, 5: Disc cutter, 1
1: Guide, 12: Sliding bar, 13: Side sliding frame, 14: Screw shaft (sliding control device), 1
6: Arm, 17: Guide plate.

Claims (1)

[Claims for Utility Model Registration] [1] A motor with a reduction gear is placed almost horizontally on a base plate formed to be able to slide freely on the surface of a tatami mat, and a disc cutter is attached to the output shaft of the motor. Fix it so that the lower edge of the blade protrudes below the base plate,
A side sliding frame that can slide parallel to the output shaft is provided on the side of the base plate, and a guide plate that contacts the side surface of the tatami floor below the disc cutter is attached to this side sliding frame via an arm. A tatami face cutting machine, characterized in that the base plate is provided with a sliding control device for the side sliding frame. [2] A utility model in which the sliding control device is a screw shaft provided parallel to the output shaft so as to connect the base plate and the side sliding frame, and the rotation knob is fixed to the screw shaft. A tatami face cutting machine according to claim 1. [3] The screw shaft has a left-hand thread on one end,
The tatami face cutting machine according to claim 2, which has a right-handed thread at the other end. [4] The side sliding frame has both ends in the front and back directions fixed to the ends of a pair of front and rear sliding bars that are slidably provided on the base plate. The tatami face cutting machine according to any one of Items 1 to 3.