JPH0440162B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION 1. Object of the Invention The present invention relates to a method for manufacturing flint necessary for the structure of Japanese houses.

In the architectural structure of Japanese houses, it is common to install flint beams at the right angles of girders and beams or second-story shingles, which are made up of timbers assembled at right angles. In order to combine this flint with girders and beams, the joint part of the flint is configured into a large case, a Kataki large case, a tenon, etc.

By the way, conventionally when making this flint,
I applied a molding tree to a square lumber of a predetermined length, and marked the loops, counter-boring points, and bolt insertion points along the shape of the molding tree, and shaped it.When attaching the tenon, All four sides are inked, and then the inked areas are cut with an electric circular saw or hand saw to create a flint of a specified shape, and bolt holes and spot holes are cut into the flint shape. He completed a single flint.

However, such conventional work processes require skill and are inefficient, making it impossible to perform the work easily and quickly, resulting in high costs. Therefore, an object of the present invention is to provide a new method for manufacturing flints that eliminates these conventional drawbacks.

For example, a flint processing machine as shown in Japanese Patent Publication No. 59-15044 is known, but this machine makes the slope of the column abut against an L-shaped positioning plate fixed to the vertical wall, so the column The distance from the end of the saw to the saw was constant, and the tenon was not precisely cut at both the left and right ends of a single square piece of timber.

2. Structure and operation of the invention (1) A support 1 with an inclination angle of 45 degrees is provided, and this support 1 consists of a horizontal base plate 2, an inclined support plate 3, both plates 2,
The vertical board 4 is detachable, and the horizontal board 2 and the inclined support board 3 are connected at one end by a hinge 5 so as to be foldable. The horizontal substrate 2 may be provided with a plurality of grooves 6 into which the lower end of the angle plate 4 is fitted. (See Figure 1) (2) Prepare a ready-made mortise machine 7. This tenon cutting machine 7 has two circular saws 8, 8 that rotate from the front direction with a tenon width interval in order to cut a "tenon" on the end of a square timber, and two circular saws 8, 8 that rotate from the front direction with a tenon width interval, and from the left and right sides Two rotating circular saws 9,9
A clamping tool (vise) 10 for tightening and fixing the square timber a placed on the support 1 and the inclined support plate 3 is provided at the lower part of both circular saw parts 8 and 9. The fitting 10 is tightened and released by means of a round handle 11. The circular saw parts 8 and 9 are moved up and down by the vertical movement of the rod handle 12.

(3) Therefore, first, tighten the end of the connecting part of the hinge 5 with the 45-degree angle between the horizontal base plate 2 and the inclined base plate 3 of the base 1 using the fastener 10 of the tenon remover 7. After placing the square timber a of a predetermined length for flint on the inclined support plate 3, the tip of the square timber a is tenoned from the end of the fastener 10. It stands out a little as the part that becomes.
In this state, the round handle 1 of the fastener 10
1 to tighten and fix the square piece a with the left and right clamping plates. (See Figures 2 and 3) (4) In this stable state, start the tenon remover 7 and move the bar handle 12 downward. Then, the tip of the square timber a is cut with a circular saw 8 from the front,
8 and circular saws 9, 9 from the left and right sides. (The tenon width is normally 30 mm, so the front circular saw should be adjusted to this width interval.) This allows the specified tenon a' to be formed. (See FIG. 4) (5) Next, a long piece 14 having a stopper 13 at its tip is inserted into the side surface of the horizontal substrate 2, and is projected toward the cutting opening of the tenon cutter 7. Further, a mounting plate 18 of a boring spot machine 17, in which a boring drill 15 and a spot boring cutter 16 are integrally installed, is attached to the front part of the tenon removing machine 7.

(6) Mark the opposite side of the base of the tenons a' and a' of the square lumber a to make a hole center. Thereafter, the square timber a is placed on the inclined support plate 3 with the tenon part facing downward, and the base end horizontal surface of the tenon part is placed on the elongated piece 14, and its tip is brought into contact with the stopper 13. In this state, the square timber a is fixed with the fastener 10. The position of the stopper 13 of the elongated piece 14 is adjusted in advance so that the tip of the drill 15 of the boring machine 17 hits the hole center of the square timber a. (See Fig. 5) (7) After placing the square timber a in this condition, lower the boring spot excavator 17 by holding the bar handle 12.
Then, the drill 15 is drilled into the marked hole center on the opposite side of the base end of the tenon part to cut the through hole b, and after the cutting is completed, the cutter 16 at the upper end of the drill bites in at a right angle to create a countersink groove c. Cut. (Refer to Figures 6 and 7) (8) When the drilling and spot-boring of one tenon of square timber a is completed, the drilling and spot-boring of the other tenon can be done in the same manner. . This completes the working process of the present invention.

(9) After cutting and forming the tenon a' on one end of the square timber a, one side of the groove 20 (0 point )
Draw a mark line d with a pencil along this line, which takes the center of the length of the flint block. After that, the fixation by the fastener 10 is released.

Next, turn this square piece a upside down, align the mark line d with one side of the groove 20 of the ruler 19, fix the other end facing the cutting opening of the tenon cutter 7, and round it again. A tenon a' is cut into the part using saws 8, 8, 9, and 9. As a result, tenons a' and a' are formed at both left and right ends of one square piece.

3. Effects of the Invention The present invention produces flints using the method described above, and therefore, flints, which were conventionally manufactured by an inefficient process that required skill, can be manufactured using special fixed wood. It can be manufactured efficiently, easily, and quickly without the need for marking and marking, and mass production of the same item becomes possible, and it can be easily manufactured by any number of people, even if they are not skilled carpenters. .

In addition, since the horizontal base plate 2 and the inclined base plate 1 of the support base 1 to be used can be folded via the hinge 5, they can be easily carried together with the angle plate 4. 7, the drilling counter 17 can be attached to and detached from this machine for use.

[Brief explanation of drawings]

The drawings show the instruments and machines used in the method of the present invention and their manufacturing state. Figure 1 is a perspective view of the abutment part, and Figure 2 shows the relationship between the abutment part and the tenon removal machine part. Figure 3 is a plan view of the main parts of the same.
Fig. 4 is a perspective view of the main part, Fig. 5 is a side view showing other relationships between the abutment part and the tenon removal machine part, Fig. 6 is an enlarged side view of the main part of the same, and Fig. 7 is the tenon part. FIG.

Claims (1)

[Claims] 1 Place the connecting corner of the support, which consists of a horizontal board and an inclined support plate connected at one end with a hinge and supported by an angle plate, in the cutting opening of the tenon remover, and place a square piece of a predetermined length on the inclined support plate. The two circular saws placed at a predetermined interval on the front of the tenon machine, and their left and right sides, were placed on the machine and fixed with a fastener with their tips facing the cutting opening of the tenon machine. Two circular saws installed at right angles on both side surfaces are rotated down to cut at right angles to the left and right sides of the tip of the square timber to form a tenon, and then a tenon is placed on the side surface of the central part of the inclined support plate. Mark the side of the square timber according to the ruler you used to find the center of the length, then turn the square timber upside down and fix it so that the other end faces the cutting opening of the tenon cutter. The left and right sides of the tip of the square timber are cut at right angles using the circular saw to form a tenon, and then a long piece having a stopper at the tip is attached to the side surface of the horizontal board and moved in the direction of the tenon cutter. Protrude and mark the opposite surface of the square timber, which corresponds to the base end of the tenon part, to make the hole center, and on the other hand, attach a boring spot machine to the front part of the tenon remover, and tilt the square timber with the tenon part facing downward. Place the tenon part on the base plate, place the tenon part on the long piece, and bring the tip of the tenon into contact with the stopper, and adjust the stopper so that the drill point of the boring counter hits the hole center of the square piece of wood. A method for manufacturing flint, characterized by fixing it with a fastener and rotating and lowering a drill of a perforating spot-boring machine to cut and form a through hole and a spot-boring groove at the same time.