JPH07241811A - Tenoning machine for woodworking - Google Patents

Abstract

PURPOSE:To provide a tenoning machine, capable of forming a tenon simultaneously with planing. CONSTITUTION:A bracket 12, to which a supporting member 15 supporting a chamfering saw edge 7 rotatably is attached, is connected to a frame 5, on which a longitudinal sawing saw edge 3 and a lateral sawing saw edge 4 are mounted, through a connecting member while the frame 5 and the bracket 12 are elevated integrally along a guide column 2 whereby the longitudinal sawing saw edge 3, the lateral sawing saw edge 4, and the chamfering saw edge 7 are elevated simultaneously with respect to the working site of a tenon for a workpiece.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tenon machine for woodworking, which is capable of forming a tenon at the end of wood and simultaneously chamfering the tenon.

[0002]

2. Description of the Related Art Conventionally, many types of tenon removers that can easily form a tenon are commercially available from many manufacturers. These mortise removers are configured with a pair of vertical saw blades and a pair of horizontal saw blades, and a motor that drives each of the saw blades. The motor is mounted on the frame, and the frame is moved up and down along the guide column to perform tenon removal.

In the conventional wooden construction method, two timbers are joined by fitting the tenon into a tenon formed in another timber. Therefore, it is common to chamfer the tenon so that the tenon can be easily fitted into the tenon.

[0004]

However, since the above-mentioned mortise remover does not have a chamfering function, it is possible to manually chamfer two or four sides by using a chisel or a hand saw after performing tenon removal. Is the current situation. Although such additional work is a little for one tenon, it takes a huge number of man-hours to construct one building, and labor burden such as moving timber for chamfering. There is a problem that it costs.

It is an object of the present invention to provide a tenon-removing machine capable of simultaneously forming a tenon and, in particular, a flat tenon.

[0006]

In order to solve the above-mentioned problems, a tenon-removing machine according to the present invention comprises a pair of vertical saw blades arranged in parallel with each other and orthogonal to the vertical saw blades. Having a pair of side saw blades arranged, in the woodworking mortise remover that raises and lowers while rotating each saw blade to form a tenon at the end of the wood, of the vertical saw blade A pair of chamfering saw blades that are inclined with respect to the blade direction are provided.

In the above-mentioned mortise removing machine, it has a frame having a vertical saw blade and a horizontal saw blade, and a pair of guide columns for guiding the vertical movement of the frame, and is movable along the guide column. It is preferable that a bracket be provided, a support member that rotatably supports a shaft to which a chamfering saw blade is fixed is attached to the bracket, and that the support member and the frame be connected by a connecting member. Further, it is more preferable that a pin be provided on the support member and that an elongated hole that engages with the pin and regulates the axial position of the support member be formed in the connection member.

[0008]

In the above tenon remover, the vertical saw blade is set at an interval equal to the tenon width, the blade tip is set at the tenon length position, and the side saw blade is set to the tenon length. Set to the position of, and set the interval of the cutting edge equal to the width of the tenon,
Further, the chamfering saw blade is set to a chamfering angle, each of the saw blades is rotated, and the saw blades are moved up and down to cut the edge of the wood to perform mortice and chamfering. I can.

Further, a supporting member for rotatably supporting the shaft to which the chamfering saw blade is fixed is attached to a bracket movably provided along the guide column, and a vertical saw blade and a horizontal saw blade are provided. By connecting the blade and the frame to the frame, the frame and the bracket can be moved up and down along the guide column to simultaneously perform tenon cutting and chamfering.

Further, by moving the pin projecting from the supporting member along the elongated hole formed in the connecting member, it is possible to set or avoid the chamfering saw blade.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the above-mentioned tenon remover will be described below with reference to the drawings. FIG. 1 is a perspective view showing the overall construction of a first embodiment of a tenon-removing machine of the present invention, and FIGS. 2 (a) and 2 (b) are connections of the first embodiment for integrally connecting a supporting member to a frame. FIG. 3 is a cross-sectional explanatory view showing the structure of a member, FIG. 3 is a cross-sectional explanatory view showing the structure of a support member that rotatably supports a shaft to which a chamfering saw blade is fixed, and FIG. It is a plane explanatory view showing arrangement positions of a saw blade, a side saw blade, and a chamfering saw blade.

{First Embodiment} A first embodiment will be described with reference to FIGS. 1 to 4. In FIG. 1, a standing table 1 for placing and fixing an end portion of wood forming a tenon is erected. In addition, two guide columns 2 each having an elastic member such as a coil spring and a hydraulic damper and a guide column are provided.

A pair of vertical saw blades 3 arranged in parallel on the upper part of the guide column 3, a pair of horizontal saw blades 4 also arranged in parallel, a motor for rotating each saw blade, and the like. Is provided with a frame 5, and a pair of guide pipes 6 that are connected to the frame 5 and serve as connecting members are provided on the outer periphery of the guide column 2. The frame 5 and the guide pipe 6 are the guide columns. It is configured so as to be able to integrally move up and down along the line 2. Further, on the guide pipe 6, a cylinder 10, a support member 15, and a shaft 14 which will be described later are provided.
And the like, a pair of chamfering saw blades 7 inclined at a predetermined angle with respect to the blade direction of the vertical saw blade is attached.

The guide column 2 is fixed to the mounting table 1 described above.
The fulcrum of the handle 8 is engaged with the top portion of the guide column (not shown) penetrating the inside of the guide pipe 6, and the action point of the handle 8 is engaged with the frame 5. Therefore, with the handle 8 opened, the frame 5 and the guide pipe 6 can be held at a predetermined height by the elastic force of the elastic member provided on the guide column 2. Further, the frame 5 and the guide pipe 6 can be integrally lowered by lowering the handle 8 against the elastic force of the elastic member.

The guide pipe 6 is shown in FIG.
As shown in (b) to FIG. 4, a cylindrical body provided with a stage 9
A guide pipe 10 is attached so as to be movable in the axial direction of the guide pipe 6, and can be fixed at a predetermined height and angle by a cylinder fixing screw 11. Further, a bracket 12 is provided on the stage 9 so as to be fitted to the tubular body 10, and the bracket 12 is rotatable around the tubular body 10,
It is fixed at a predetermined angle by the bracket fixing screw 13. Further, a support member 15 for rotatably supporting a shaft 14 to which a chamfering saw blade 7, which will be described later in detail with reference to FIG. 3, is rotatably fitted in the bracket 12 so as to be movable in the axial direction. It is fixed in place by the member fixing screw 16.

Next, as shown in FIG. 3, the chamfering saw blade 7 is fixed to the end of the shaft 14 by a set screw 17,
The large-diameter portion 14a of 14 is housed in a cylindrical supporting member 15 having an inner diameter corresponding to the outer diameter of the large-diameter portion 14a, whereby the axial position of the shaft 14 is regulated and the shaft 14 is It is rotatably supported by the support member 15. Bearing members 18 for smoothly rotating the shaft 14 are attached to the stepped portions at both ends of the large diameter portion 14a. Also, axis 14
A flexible assembly 20 which is formed of a coiled rigid body or the like and has flexibility and is capable of transmitting a rotational force is connected to the other end of the motor so as to transmit the rotational force from the motor 19 shown in FIG. Can be done.

Further, as shown in FIGS. 2A and 4, the stage 9 has a pair of pins 21 provided upright at intervals corresponding to the outer diameter of the support member 15, and between the pins 21. The chamfering saw blade 7 can be set so as to face the chamfered portion of the tenon of the wood by installing the support member 15 in between.

The operation of forming a tenon at the end of wood and simultaneously chamfering the tenon using the tenon mortaring machine constructed as described above will be described. First, on the mounting table 1 of FIG. The work piece 23 shown in FIG. 4 is fixed by the vice 22, and the vertical saw blade 3 is set to have an interval equal to the width of the tenon 24 according to the size of the tenon 24 to be formed, and the cutting edge of the tenon 24 is set. Set to the position of the length and mortize the saw blade 4 for sideways
Set the length to 24 and set the blade tip spacing to 24
Set to an interval equal to the width of.

Then, the cylinder body 10 is fixed at a predetermined height and angle by the cylinder body fixing screws 11, so that the chamfering saw blade 7 interferes with the vertical saw blade 3 and the horizontal saw blade 4. A pair of chamfering saw blades 7 that are held in a position that does not
Set and keep the intervals so that they do not interfere with each other. The angle of the cylindrical body 10 is set at a position where the pair of pins 21 on the stage 9 face the chamfered portion 25 of the workpiece 23, as shown in FIG.

Next, the bracket 12 is fixed to a predetermined angle by the bracket fixing screw 13, and the chamfering saw blade 7 is set to the angle of the chamfered portion 25 of the tenon 24 shown in FIG. Then, the projecting length of the support member 15 is fixed to a predetermined length by the support member fixing screw 16, and the chamfering saw blade 7 is cut into the workpiece 23.
It is set at the position of the chamfer 25.

With the above settings, as shown in FIG. 4, the saw blades are chamfering saw blade 7, vertical saw blade 3, side saw blade 4 in order from the vicinity of the work piece 23. Are arranged three-dimensionally with a predetermined space therebetween, and the pair of chamfering saw blades 7 are arranged with a predetermined space therebetween.

The motor on the frame 5 shown in FIG. 1 is driven to drive the vertical saw blade 3 and the horizontal saw blade 4.
When the chamfering saw blade 7 is rotated by driving the motor 19 provided on the mounting table 1 while rotating the chamfering blade 7, the chamfering saw blade 7 first moves the chamfering portion 25 of the tenon 24. Make a notch, and then the tenon for vertical saw 3
After cutting to a width of 24, the horizontal saw blade 4 cuts to the length of the tenon 24 to take the desired tenon 24 and the tenon.
Can be chamfered to 24.

Since the tenon and the chamfer can be formed by one operation by the above operation, it is not necessary to manually perform the chamfering after removing the tenon as in the conventional case, so that the number of steps can be reduced. At the same time, labor such as moving wood for chamfering can be omitted, and labor burden can be reduced.

When forming a mortise, dovetail, or mortise that does not require chamfering, the support member fixing screw 16 is loosened and the support member 15 is moved in the axial direction to form the chamfering saw blade 7. Or the bracket fixing screw 13
Loosen to rotate the bracket 12 to avoid the chamfering saw blade 7 at a position where it does not interfere with the work piece 23, and use only the vertical saw blade 3 and the horizontal saw blade 4 for the chamfering. You can form a tenon that does not require.

When the bracket 12 is rotated to avoid the chamfering saw blade 7, for example, the pin 21 detachably attached to the stage 9 is detached or a coil spring or the like is used. It is sufficient to lower the pin 21 configured to be movable up and down by an elastic body and rotate the bracket 12 in a predetermined direction to avoid the chamfering saw blade 7. With such a configuration, the avoidance operation can be easily performed.

{Second Embodiment} In the first embodiment, the support member 15 is fitted to the bracket 12 provided on the cylindrical body 10 fitted to the guide pipe 6 serving as the connecting member, and the support member fixing screw 16 is provided.
The support member 15 is fixed by means of a second embodiment. Next, as a second embodiment, a pin is provided on the support member 15 and a long hole that engages with the pin is formed in the connecting member. A case will be described in which the support member 15 is moved in the axial direction by moving the. However, the same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted. FIG. 5 is a cross-sectional explanatory view showing the structure of the second embodiment of the connecting member for integrally connecting the supporting member to the frame.

As shown in FIG. 5, metal fittings 26, 27, 28 serving as connecting members are fixed to the lower main body 5a of the frame 5 shown in FIG. 1, and the metal fitting 27 supports the bracket 30. A ring 29 is fixed, and an elongated hole 28a is formed at a predetermined position of the metal fitting 28. A bracket 30 having an inner diameter corresponding to the outer diameter of the supporting member 15 is supported by the metal fitting 28 and the support ring 29, and the bracket 30 has a long hole at a position corresponding to the long hole 28a of the metal fitting 28. An elongated hole 30a formed in the same shape as 28a is provided.

The bracket 30 is a metal fitting that serves as a connecting member.
Due to the configuration of 26, 27, 28 and the support ring 29, the axial direction of the bracket faces the chamfered portion 25 of the workpiece 23 shown in FIG. 4 and is positioned at a predetermined height.
When the support member 15 is inserted into the inside of 30 and slid to the set position, the chamfering saw blade 7 causes the chamfered portion 25 of the workpiece 23 to be cut.
Is set to.

A pin 31 can be provided at a predetermined position of the support member 15 so as to correspond to the elongated holes 28a and 30a, and the support member 15 is inserted into the pipe guide 30. Then, the pin 31 is engaged with the elongated holes 28a, 30a to project on the support member 15, and the pin 31 is moved along the elongated holes 28a, 30a to move the support member 15 along the bracket 30. By this, the position of the chamfering saw blade 7 can be set to the position of the chamfered portion 25 of the workpiece 23, or can be avoided.

In the above embodiment, the chamfering saw blade 7 is operated by one-touch operation of moving the pin 31 along the elongated holes 28a and 30a.
Since you can set or avoid, it is easy to set or avoid. Other configurations are similar to those of the first embodiment, and the handle 8 can be lowered to remove the tenon 24 and simultaneously perform chamfering.

In each of the above-described embodiments, the shaft 14 of the pair of chamfering saw blades 7 is connected to the motor 19 for driving both shafts via the flexible assembly 20 so that the chamfering saw blades 7 have the same torque and rotational speed. Then, by rotating in the same direction and inward (direction of arrow a in FIG. 1), the cut end of the chamfered portion 25 can be finished neatly.

Further, in each of the above embodiments, the motor 19 is installed in the lower front portion of the mounting table 1 as shown in FIG.
The flexible assembly 20 can be shortened in other places as long as it does not interfere with the work, for example, by mounting the flexible base 20 between the guide columns 2 at the lower rear surface of the mounting table 1. Further, in each of the above-mentioned embodiments, one motor 19 drives the pair of chamfering saw blades 7,
It may be driven by separate motors.

[0033]

Since the mortise removing machine for woodworking according to the present invention has the above-described structure and operation, it is possible to perform chamfering simultaneously with mortice removal by one operation. Therefore, unlike the conventional case, it is not necessary to manually perform chamfering after mortice removal, the man-hour can be reduced, labor such as moving wood for chamfering can be omitted, and labor burden can be reduced.

Further, along the long hole formed in the connecting member,
By moving the pin protruding on the support member to set or avoid the chamfering saw blade, setting or avoidance can be set by one-touch operation.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall configuration of a first embodiment of a mortise picking machine of the present invention.

2A and 2B are cross-sectional explanatory views showing a structure of a connecting member of the first embodiment for integrally connecting a supporting member to a frame.

FIG. 3 is a cross-sectional explanatory view showing a configuration of a support member that rotatably supports a shaft to which a chamfering saw blade is fixed.

[Fig. 4] Vertical saw blade set on the mortise part to be processed,
It is a plane explanatory view showing arrangement positions of a side saw blade and a chamfering saw blade.

FIG. 5 is a cross-sectional explanatory view showing a configuration of a second embodiment of a connecting member for integrally connecting the supporting member to the frame.

[Explanation of symbols]

1 ... Mounting table, 2 ... Guide column, 3 ... Vertical saw blade,
4 ... Side saw blade, 5 ... Frame, 5a ... Lower body,
6 ... Guide pipe, 7 ... Chamfering saw blade, 8 ... Handle, 9 ... Stage, 10 ... Cylindrical body, 11 ... Cylindrical body fixing screw, 12 ...
Bracket, 13 ... Bracket fixing screw, 14 ... Shaft, 14a ...
Large diameter part, 15 ... Support member, 16 ... Support member fixing screw, 17 ... Set screw, 18 ... Bearing member, 19 ... Motor, 20 ... Flexible assembly, 21 ... Pin, 22 ... Vise, 23 ... Workpiece material, 24 … Tenon, 25… Chamfer, 26, 27, 28… Metal fittings,
28a ... elongated hole, 29 ... support ring, 30 ... bracket, 30a ...
Slotted hole, 31 ... pin

Claims (3)

[Claims] 1. A saw blade having a pair of vertical saw blades arranged in parallel and a pair of horizontal saw blades arranged orthogonal to the vertical saw blade. In a mortise removing machine for woodworking that rotates and raises and lowers to form a tenon at the end of the wood, a pair of chamfering saw blades that are inclined with respect to the blade direction of the vertical saw blade are provided. Mortise removing machine for woodworking. 2. A bracket having a frame on which a vertical saw blade and a horizontal saw blade are mounted, and a pair of guide columns for guiding up and down movement of the frame, and a bracket movable along the guide column. 2. The woodworking machine according to claim 1, further comprising a support member that rotatably supports a shaft having a chamfering saw blade fixed to the bracket, and the support member and the frame are connected by a connecting member. Mortise remover. 3. A pin protruding from the support member,
The mortise machine for woodworking according to claim 2, wherein an elongated hole which engages with the pin and regulates the axial position of the supporting member is formed in the connecting member.