JP3148305B2 - Frame body chipping forming device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for forming a frame to be fitted into an opening such as a doorway of a house, by forming a convex part on one of the vertical and horizontal frame members constituting the frame. The present invention relates to a notch forming device for forming.

[0002]

2. Description of the Related Art Generally, a frame for installing a door or the like is fitted in an opening such as an entrance of a room.
Such a frame, for example, a door frame is to be manufactured in a factory in advance by a prefabricated method. And
The door frame is manufactured by forming vertical and horizontal frame members constituting the door frame into a rectangular frame shape. In addition, each of the end portions of the vertical and horizontal frame members is formed with a notch. In addition,
Generally, the abutting portions of the vertical and horizontal frame members in the door frame are joined in a state in which the vertical and horizontal frame material ends are cut at an oblique angle of 45 degrees when viewed from the front.

[0003] The shape of the end of the frame material of such a door frame is as follows.
For example, as shown in FIG. 9 (A), one having a convex shape like the frame material 1 and one having a concave shape like the end of the frame material 2 in FIG. 9 (B). is there. And frame material 1
Except for the center portion, both edges are cut at an angle of 45 degrees, and the center portion is formed as a projected portion 3. Further, the end of the frame material 2 is cut at an angle of 45 degrees, and a cutout 4 is formed at the center thereof. The projection 3 of the frame 1 is fitted into the cutout 4 of the frame 2. And the joint between the frame material 1 and the frame material 2 is
When viewed from the outside, the ends cut at 45 degrees are brought together. Conventionally, such a chipped portion is cut at a predetermined angle with an electric saw or the like, or
A groove having a predetermined width is formed, and is formed through a plurality of steps.

[0004]

By the way, when the frame members are formed by joining the frame members due to the gap, if the length of the frame material, the angle of the end face and the gap are incorrect, the frame should be manufactured. Since the shape of the frame is distorted, it is required that the shape of the formed notch has high accuracy. Therefore, the work of forming a gap has been a difficult work of performing a plurality of steps with high accuracy. In particular, as in the case of the above-mentioned door frame, in order to make the ends of the frame material cut at 45 degrees into an abutting relationship with each other, it is necessary to adjust the length of the frame material to a predetermined length. It was necessary to cut the part to 45 degrees and to form a notch, which was a difficult task. In addition, even if a notch is formed at a predetermined angle almost automatically due to the improvement of the performance of an electric saw or the like, there is a possibility that the incision will occur after several steps, and the skill of the worker is required. Was.

The present invention has been proposed in view of the above circumstances, and has as its object to simplify the operation of forming a notch at the end of a frame member constituting a frame and to enhance the operation. An object of the present invention is to provide an apparatus for forming a frame notch capable of forming a notch with high accuracy.

[0006]

According to the present invention, there is provided an apparatus for forming a notch in a frame, which is formed by fitting a vertical or horizontal frame member having a concave or convex notch at an end thereof to form a rectangular frame. A frame-shaped notch forming device for forming a convex notch at one end of one of the vertical and horizontal frame members, and a fixing base for fixing the frame member; and a fixing base for fixing the frame member. A cutting portion provided with a convex indentation at an end of the frame material fixed to the frame material , wherein the cutting portion is formed on one surface of the frame material, at a right angle to the one surface, and the length of the frame material. 2 to form two cuts along the direction
A first electric saw table, and a two second electric saws forming the notches respectively reaching the cut from both sides of the rail members ends, disk-shaped blades of the first electric saws Is arranged at right angles to one surface of the frame material, and the disc- shaped blade of the second electric saw is arranged at right angles to the blade of the first electric saw, and is fixed to the fixed base. The outer peripheral edge of the blade of the first electric saw and the outer peripheral edge of the blade of the second electric saw are aligned at a predetermined angle with respect to the And the first and second electric saws are provided so as to be integrally movable along the predetermined angle, and the fixed base supports a frame member.
And a frame material pressed against the lower surface guide to secure it.
Pressing portion, and two cuts of the two first electric saw blades.
A space provided between the cutting and moving surfaces to position the tip of the frame material
The provision of the topper is a means for solving the above problem.

[0007]

According to the above arrangement, the first and second electric saws integrally move at a predetermined angle with respect to the frame member at the end of the frame member fixed to the fixed base. The first electric saw of the stand forms two notches in the entire end of the frame material at a predetermined angle toward the end of the frame material. In addition, the two second electric saws reach the cut from both side surfaces of the end of the frame material, and a cut is formed along the deepest portion inclined at a predetermined angle of the cut. Therefore, a notch is formed in which both side edges of the frame material end become thinner at a predetermined angle toward the end. Therefore, a central portion of the end of the frame material remains as a protrusion, and a notch is formed in which both sides are cut off at a predetermined angle.
In addition, the position of the end of the frame material was determined by the stopper
In this condition, the edges will be cut diagonally, since
This will not change the length of the frame material
In addition, the notch can be formed with high accuracy.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 6 show an apparatus for forming a recess in a frame according to the present embodiment, and FIGS. 7 and 8 are views showing end portions of frame members of the frame in which a recess is formed. The phase notch forming apparatus includes a convex phase notch forming apparatus 10 for forming a convex phase notch shown in FIGS. 1 to 3 and a concave phase notch forming apparatus 40 for forming a concave phase notch shown in FIGS. 4 to 6. And two units.

As shown in FIG. 1, the convex notch forming apparatus 10 includes a fixing base 11 for fixing a frame member 1 for forming a notch at an end thereof, and a frame member fixed to the fixing base 11. And a cutting portion 20 that forms a notch at one end. As shown in FIGS. 1 and 3, the fixing stand 11 is composed of a positioning unit 12 for determining and fixing the end of the frame 1 and a roller conveyor 13 for transporting the end of the frame 1 to the positioning unit 12. It becomes.

The positioning portion 12 has a work table 14 on which the end of the frame 1 is placed, and a rectangular plate-shaped lower surface provided on the work table 14 for guiding the lower surface of the frame 1. Guide plates 15, and side guide plates 16, 16 provided on both sides of the lower surface guide plate 15 along the length direction of the lower surface guide plate 15 to guide and hold both sides of the frame member 1, A stopper 17 that is provided at the tip of the lower surface guide plate 15 and determines the position of the tip of the frame material 1, and is provided above the lower surface guide plate 15, and presses the frame material 1 against the lower surface guide plate 15 from above to adjust the position. And a pressing portion 18 to be fixed.

The work table 14 includes a leg 14a provided integrally with a leg 14a of a cutting section 20, which will be described later, and a horizontal work plate 14b constituting a work surface. The lower surface guide plate 15 is a frame material 1 to be formed with a gap.
Is a rectangular plate having a width slightly smaller than the width of the rectangular plate, and is formed so as to have a smooth surface. The lower surface guide plate 15 is attached to the work plate 14b so as to extend slightly from the front end to the rear end of the work plate 14b.

The side guide plates 16, 16 are rectangular thin plates disposed on both sides of the lower guide plate 15, and are perpendicular to the upper surface of the work plate 14b with one side edge facing the upper surface of the work plate. Are located in Further, the side guide plates 16 are moved in a direction perpendicular to the longitudinal direction of the lower surface guide plate 15 by the drive units 19, 19 provided on the work plate 14b on the side of the respective side guide plates 16, 16. Supported movably along
The frame 1 on the lower guide plate 15 can be clamped from the left and right. The drive unit 19 includes a rectangular plate-shaped moving plate 19a having a front end joined to the back surface of the side guide plate 16, and guide grooves 19b for guiding both side edges of the moving plate 19a.
And two guide rails 19 joined to the work plate 14b at right angles to the lower surface guide plate 15 and parallel to each other.
c, 19c, and an air cylinder 19e provided in parallel to the guide rails 19c, 19c by two support pieces 19d, 19d provided on the guide rails 19c, 19c, respectively.

A connecting piece 19f is provided upright on the upper surface of the tip of the moving plate 19a, and the tip of the piston rod 19g of the air cylinder 19e is joined to the upper part of the connecting piece 19f. Under such a configuration, the side guide plate 16 is moved by the air cylinder 19e via the moving plate 19a.
Is movable along a direction perpendicular to the lower surface guide plate 15.

The stopper 17 has a plate-like extending portion 17a extending from the tip of the lower surface guide plate 15, and the extending portion 1a.
An abutting plate 17b is provided at the tip of 7a at a right angle to the extension 17a to form an L-shaped cross section. The stopper 17 is connected to a first electric saw 21 described later.
Are formed narrower than the interval between the blades 21a. Under such a configuration, the stopper 17 determines the position of the tip of the frame material 1.

The pressing portion 18 has a portal arm 18 provided on the front side of the work plate 14b so as to straddle the work plate 14b.
a, an air cylinder 18b vertically fixed to the portal arm 18a, and a pressing plate 18d provided at the tip of the piston rod 18c of the air cylinder 18b and pressing the upper surface of the frame member 1 downward. It is. The roller conveyor 13 has its center line aligned with the center of the lower guide plate 15 and the upper surface of the rollers 13a... Coincides with the upper surface of the lower guide plate 15.
The roller conveyor 13 guides the end of the frame material 1 to the fixing base 12 and supports a portion other than the end of the frame material 1.

As shown in FIGS. 1 and 2, the cutting section 20 includes two moving saws 21 having a first electric saw 21 and a second electric saw 22 for making a cut in the end of the frame material 1. Stand 2
3 and 23, and a support portion 24 that supports the movable table 23 so as to be movable at an inclination of 45 degrees with respect to the frame 1 fixed to the fixed table 12. The support part 2
4 includes a leg 14a formed integrally with the leg 14a of the work table 14, and an inclined plate 25 supported by the leg 14a at a 45-degree inclination. On the upper surface thereof, there are provided two guide rails 26 for guiding the two movable tables 23, respectively, and two drive mechanisms 27 for respectively driving the two movable tables 23.

The guide rail 26 is arranged in parallel with the inclined plate 25, and both ends thereof are fixed by mounting pieces 26a, 26a provided on both upper and lower ends of the inclined plate 25. The drive mechanism 27 includes pulleys 27a, 27a respectively installed at upper and lower ends of the inclined plate 25, and one pulley 2
7a, and an electric motor 27b that rotates the pulleys 27a, 27a.
And an endless belt 27c connected to the endless belt 27c. The endless belt 27c is provided with two upper and lower through holes 2 provided in mounting pieces 26a, 26a supporting the guide rails 26, 26.
6c and 26d.

The movable table 23 has an insertion hole (not shown) through which the two guide rails 26 are slidably inserted.
A first power saw 21 and a second power saw 2 which are provided on the base 23a so as to be movable along a direction perpendicular to the guide rails 26, 26, and
And an electric saw support portion 23b that integrally supports the power saw 2 and the power saw.

The base 23a is provided on its upper surface with guide rails 23c, 23c extending in a direction perpendicular to the guide rail 26. Also, the base part 23a
The mounting piece 23d is provided on the side surface of the inclined plate 25 facing the side edge.
, An air cylinder 23e is attached in parallel with the guide rails 23c, 23c. The tip of the piston rod of the air cylinder 23e is joined to the side surface of the electric saw support 23b. With such a configuration, the distance between the two electric saw support portions 23b can be changed by expansion and contraction of the air cylinder 23e.

The electric saw support portion 23b comprises a first installation plate 23f on which the first electric saw 21 is installed and a second installation plate 23g on which the second electric saw 22 is installed. The first installation plate 23f has the guide rail 2 on its lower surface.
A fitting piece (not shown) that is slidably fitted to 3c and 23c is provided. The first installation plate 23f has an upper surface parallel to the surface of the inclined plate 25, that is, an inclination angle of 45 degrees. And on the upper surface of the first installation plate 23f,
With the rotating shaft arranged at right angles to the guide rails 23c, 23c, the electric motor 21b of the first electric saw is
Is installed. The disk-shaped blade 21a of the first electric saw 21 is attached to the tip of the rotating shaft so as to be perpendicular to the surface of the inclined plate 25 and parallel to the guide rail 26.

The second installation plate 23g is attached to the rear end surface of the first installation plate 23f such that the surface thereof is a plane perpendicular to the inclined plate 25. The electric motor 22b of the second electric saw 22 is mounted on the surface of the second installation plate 23g such that the rotation axis is perpendicular to the surface of the inclined plate 25. Further, the disc-shaped blade 22a of the first electric saw has an inclined plate 25
Mounted so as to be parallel to the surface. That is,
The first electric saw 21 and the second electric saw 22 are arranged at right angles to each other.

Further, the first electric saw blade 21a and the second electric saw blade 22a correspond to the outer peripheral edge of the first electric saw blade 21a and the outer peripheral edge of the second electric saw blade 22a. Pass through a straight line parallel to the guide rail 26.
That is, the notch formed in the frame member 1 by the first electric saw 21 and the notch formed in the frame member 1 by the second electric saw 22 allow the end of the frame member 1 to be cut at a right angle. It has become.

The two moving tables 23, 23 are formed such that the first electric saw blades 21a and the second electric saw blades 22a are mutually connected from the center of the frame member 1 fixed to the fixed base 11. They are arranged at equal distances. Further, one end of the frame member 1 fixed to the fixed base 11 shown in FIG. 1 is located on a straight line passing through the outer peripheral edge of the first electric saw blade 21a and the outer peripheral edge of the second electric saw blade 22a. Are crossed.

With such a configuration, the cutting portion 20
As shown in FIG. 7, the first electric saw 21
The face b at the end is cut out, and the face c at the end of the frame 1 is cut out by the second electric saw 22. As shown in FIG. 4, the concave notch forming device 40 includes a fixing base 41 for fixing the frame member 2 to be formed with a notch at an end thereof, and an end of the frame member 2 fixed to the fixing base 41. The cutting part 42 for cutting the part at an angle of 45 degrees, and the frame material 2 at the center of the end of the frame material 2
And a groove forming portion 43 that forms a cutout 4 (shown in FIG. 8) that opens in the vertical direction of the frame member 2 and that opens on the end face side of the frame member 2.

As shown in FIGS. 4 and 6, the fixing table 41 includes a positioning section 44 for determining and fixing the end of the frame 2 and a roller conveyor for transporting the end of the frame 2 to the positioning section 44. 45.

The positioning portion 44 includes a work table 46 on which the end of the frame member 2 is placed, and a rectangular plate-shaped lower surface provided on the work table 46 for guiding the lower surface of the frame member 2. A guide plate 47 is provided on both sides of the lower guide plate 47 so as to extend along the length direction of the lower guide plate 47 and to extend above the roller conveyor 45, respectively.
Are guided by the side guide plates 48, 48 and the grooves 48a provided in the side guide plates 48, 48, and a positioning plate 49 for determining the position of the rear end of the frame member 2 (FIG. 6).
And a pressing portion 50 provided above the lower surface guide plate 47 and pressing the frame material 2 against the lower surface guide plate 47 from above to fix the position.

The work table 46 comprises a leg 46a provided integrally with a leg 46a of a cutting portion 42 and a groove forming portion 43, which will be described later, and a horizontal work plate 46b constituting a work surface. . The lower surface guide plate 47 is a rectangular plate having substantially the same width as the width of the frame member 2 in which the notch is to be formed, and is formed smoothly so that the surface thereof slides. The lower surface guide plate 47 is attached to the work plate 46b so as to extend from the front end to the rear end of the work plate 46b.

The side guide plates 48, 48 are rectangular thin plates attached to both side edges of the lower surface guide plate 47,
With one side edge facing the upper surface of the work plate 46b, the work plate 46
b It is arranged at right angles to the upper surface. Also, the side guide plate 4
The rear portion of each of the rollers 8 and 48 extends to a position above the roller conveyor, and is provided with a plurality of grooves 48a for fitting and supporting the positioning plate 49. This groove 48a ...
The left and right side guide plates 48, 48 are provided at corresponding positions so as to support the positioning plate 49 at right angles to the side guide plates 48, 48, and a plurality of types of frame members 2 to be formed with a gap. Are provided corresponding to the lengths of the two.

The positioning plate 49 is a rectangular plate having a width longer than the interval between the left and right side guide plates 48, 48. Are fitted, and the rear end face of the frame member 2 is brought into contact with the frame member 2 to determine the position of the frame member 2.

The pressing portion 50 has a portal arm 50a provided in front of the work plate 46b so as to straddle the work plate 46b.
And two air cylinders 50b, 50b fixed vertically to the portal arm 50a;
A press plate 50d is provided so as to bridge the ends of the piston rods 50c, 50c of b and 50b, and presses the upper surface of the frame member 2 downward.

The center line of the roller conveyor 45 coincides with the center of the lower guide plate 47, and the height of the upper surface of the rollers 45a matches the upper surface of the lower guide plate 47. And the roller conveyor 45
Is designed to guide the end of the frame member 2 to the fixed base and to support a portion other than the end of the frame member 2. As shown in FIGS. 4 and 5, the cutting section 42 includes a third electric saw 51 for cutting the end of the frame material 2 at an angle of 45 degrees, and a third electric saw 51 for cutting the third electric saw 51 by 45 degrees. And a support portion (not shown) that supports the movable table 52 so as to be movable in a direction perpendicular to the length direction of the frame member 2 fixed to the fixed table 41, that is, in the left-right direction. And the subject.

The support section is provided with a leg 4 of the work table.
6a, and has an inclined plate (not shown) which is supported at both ends by left and right leg plates (not shown) of the leg portion 46a, and which is arranged at an angle of 45 degrees. The inclined plate has two guide rails 53 on its upper surface for guiding the moving table 52 and a driving mechanism 5 for driving the moving table 52.
And 4.

The guide rails 53 are arranged in parallel with the inclined plate and horizontally, that is, the two guide rails 53 are arranged with a step of 45 degrees. The guide rails 53 are fixed at both ends by mounting pieces 56 provided at both left and right ends of the inclined plate.

The drive mechanism 54 is wound around pulleys 54a, 54a provided at both right and left ends of the inclined plate, an electric motor 54b for rotating one of the pulleys 54a, and the two pulleys 54a, 54a. Together with the moving table 5
2 is connected to an endless belt 54c. The endless belt 54c is provided with two upper and lower through holes 56a, 5a provided on a mounting piece 56 supporting the guide rails 53, 53.
6b.

The movable table 52 has insertion holes 52a, 5a through which the two guide rails 53 are slidably inserted.
2a. The movable table 52 has an upper surface parallel to the surface of the inclined plate, that is, an inclined angle of 45 degrees. The electric motor 51b of the third electric saw 51 is mounted on the upper surface of the moving table 52 in a state where the rotating shaft is arranged perpendicular to the guide rails 53 and parallel to the upper surface of the moving table. . The electric motor 51b is mounted via a slide plate 52a on a movable base 52. The slide plate 52a slides in a direction perpendicular to the guide rails 53, 53, and is made of a frame material. 2, the cut length can be adjusted. And
The disc-shaped blade 51a of the third electric saw 51 has a guide rail 53, 5
3 so as to be parallel.

The groove forming section 43 has an electric groove cutting machine 57 for cutting a groove (notch portion 4) penetrating vertically in the center of the end of the frame material 2, and a movement supporting the electric groove cutting machine 57. Stand 5
8 and a support portion 59 that supports the movable table 58 so as to be movable in the vertical direction.

The support portion 59 is provided on the work table 46.
And a pair of guide rails 59 horizontally arranged on the leg 46a.
a, 59a and a support plate 59b movably arranged guided by the guide rails 59a, 59a.
The guide rails 59a, 59a are provided in parallel with the length direction of the frame member 2 fixed to the fixed base 41, and
By changing the distance between b and the end of the frame member 2, the depth of the cutout 4 to be formed can be adjusted. Further, the support plate 59b is erected vertically.

The support plate 59b is provided at its lower part with triangular plate-like legs 59c, 59c which are slidably fitted to the guide rails 59a, 59a, and on the front side of the support plate 59b. It has two guide rails 60 for guiding the table 58 and a driving mechanism 61 for driving the movable table 58.

The guide rails 60, 60
9b, and both ends thereof are provided with mounting pieces 60a, 60a provided at upper and lower ends of a support plate 59b.
0a. The drive mechanism 61 includes pulleys 61 installed at both upper and lower ends of a support plate 59b.
a, 61a, an electric motor 61b for rotating one pulley 61a, and an endless belt 61 wound around the two pulleys 61a, 61a and connected to the moving table 58.
c.

The endless belt 61c is arranged so as to pass through a through hole 60b provided in a mounting piece 60a for supporting the guide rails 60,60. The moving table 58
Has an insertion hole (not shown) into which the two guide rails 60 are slidably inserted. The electric motor 57b of the grooving machine 57 is mounted on the upper surface of the moving table 58 in a state where the rotation axis is arranged horizontally and parallel to the end surface of the frame member 2. The electric motor 57b is mounted via a slide plate 58a on the movable base 58, and the slide plate 58a is connected to the guide rail 6 by a worm screw 58b.
It slides in a direction perpendicular to 0 and 60, so that the position of the cutout 2 provided in the frame member 2 can be adjusted left and right.

A cylindrical groove cutting blade 57a is attached to the tip of the rotating shaft. This groove cutting blade 57
a is a pair of parallel disk-shaped saw blades 57c, 5c;
Are arranged so as to span a large number of cutting blades 57d. Under such a configuration, as shown in FIG. 8, the end of the frame material 2 is cut by the cutting portion 42 so as to cut out the surface of d, and the notch at the end of the frame material 2 is cut by the groove forming portion 43. 4 are formed.

The distance between the width of the groove cutting blade 57a of the concave notch forming device 40 and the distance between the first electric saw blades 21a of the convex notch forming device 10 is determined by the end of the frame member 2. The cutouts 4 and the protrusions 3 at the ends of the frame member 2 have substantially the same distance so as to fit each other. When changing the width of the notch 4, the groove cutting blade 57a is replaced with a groove having a different width.

Next, the operation of the notch forming apparatus of this embodiment will be described. First, when a convex notch is formed by the convex notch formation 10, the frame material 1 cut to a predetermined length is placed on the roller conveyor 13, and the end of this frame material is attached to the work board 14b. It is conveyed onto the upper lower guide plate 15, and the end surface of the frame material 1 is brought into contact with the stopper 17. Then, the gap between the side guide plates 16, 16 is reduced by the air cylinders 19, 19, and the pressing plate 18 d is pushed downward by the air cylinder 18 b of the pressing portion 18 to fix the position of the end of the frame member 1.

Next, the drive mechanism 27 is operated to drive the inclined plate 2.
The two moving tables 23 on the fifth plate 5 are simultaneously moved from the lower end side of the inclined plate 25 to the upper end side, and the first electric saw 21 and the second electric saw 22 are operated. Then, two moving first electric saw blades 21a form two cuts on the lower surface of the end of the frame material 1. These cuts form the surface b of the frame material 1 shown in FIG. The two moving second electric saw blades 22 a form two cuts in the side surface of the end of the frame material 1. These cuts form the surface c of the frame material 1 shown in FIG.

The first electric saw blade 21a and the second electric saw blade 2a attached to the two moving tables 23, respectively.
2a are arranged at right angles to each other and the second power saw blade 21a
Are arranged at an angle of 45 degrees with respect to the lower surface of the frame member 1, and the outer peripheral edge of the first electric saw blade 21 a and the outer peripheral edge of the second electric saw blade 22 a The first electric saw blade 21a and the second electric saw blade 22a move integrally with each other at 45 degrees with respect to the lower surface. Are cut out at an angle of 45 degrees, and a convex notch having the protrusion 2 is formed at a time.
A straight line passing through the outer peripheral edge of the blade 21a of the first electric saw and the outer peripheral edge of the blade 22a of the second electric saw and a line e in FIG.
And match.

Next, when forming the concave notch by the concave notch formation 40, the frame material 2 cut to a predetermined length is used.
Is placed on the roller conveyor 45, and the end of the frame material 2 is transported onto the lower guide plate 47 on the work plate 46b. Next, positioning plates 49 are inserted into the grooves 48a, 48a of the side guide plates 48, 48.
And the rear end face of the frame member 2 is brought into contact with the positioning plate 49. The air cylinders 50b, 50b of the pressing portion 50
, The pressing plate 50d is pushed downward, and the position of the end of the frame member 2 is fixed.

Next, the drive mechanism 54b of the cutting section 42 and the electric motor 51b are operated, and the end of the frame member 2 is cut at an angle of 45 degrees by the third electric saw 51. Next, the groove forming part 4
By operating the drive mechanism 61 and the electric motor 57b, the notch 4 is formed at the end of the frame member 2 by the groove cutter 57.

As described above, the above-described device for forming a convex phase gap 1
According to No. 0, a 45-degree end face and the protrusion 3 can be formed at the end of the frame material 1 by a single operation of the first and second electric saws 21 and 22, and have a 45-degree end face. The phase gap can be easily formed in one step.

Further, since the first electric saw 21 and the second electric saw 22 are arranged on the movable base 23 with their positions determined and are moved integrally, the end face of the frame member 1 can be accurately formed. Can be formed, and a notch is formed in a state in which the position of the end of the frame material 1 is determined by the stopper 17, so that by cutting the end obliquely, The length of the frame material 1 does not change,
The notch can be formed with high accuracy.

According to the concave notch forming device 40, the end face of the frame member 2 is cut exactly 45 degrees by the third electric saw 51 and the grooving machine 57, and the notch 4 is formed.
A notch having a 45-degree end face can be easily formed with high accuracy and in one step. Therefore, by using the convex notch forming device 10 and the concave notch forming device 40, a notch can be formed in the frame members 1 and 2 easily and with high accuracy. A door frame can be formed.

It should be noted that the shapes, dimensions, and the like of the components shown in the embodiment are merely examples, and can be variously changed based on design requirements and the like. The lower frame may be changed such that one frame material is cut at 60 degrees and the other frame material is cut at 30 degrees.

[0052]

As described in detail above, according to the present invention, the end face and the projection at a predetermined angle can be framed by a single operation of the first and second electric saws. Can be formed at one end, and a notch having an end surface at a predetermined angle can be easily formed in one step. Further, since the positions of the first electric saw and the second electric saw are determined and are moved integrally, the angle of the end face of the frame material and the gap can be accurately formed. Therefore, the door frame can be formed with high accuracy by using the frame material in which the notch is formed by the notch forming apparatus. Ma
In addition, the position of the end of the frame material is determined by the stopper
In the state, a notch is formed, so cut the end diagonally
As a result, the length of the frame material does not change,
The notch can be formed with high accuracy.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a convex phase notch forming apparatus of the above embodiment.

FIG. 2 is a perspective view showing a cutting part of the concave chipping forming device.

FIG. 3 is a perspective view showing a fixing base of the concave chipping forming apparatus.

FIG. 4 is a side view showing the concave chipping forming apparatus of the embodiment.

FIG. 5 is a perspective view showing a cutting portion and a groove forming portion of the concave chipping forming device.

FIG. 6 is a perspective view showing a fixing base of the concave chipping forming apparatus.

FIG. 7 is a perspective view showing the frame member of the embodiment.

FIG. 8 is a perspective view showing the frame member of the embodiment.

FIG. 9 is a perspective view for explaining the conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 frame material 2 frame material 10 convex notch forming device 11 fixing base 20 cutting part 21 first electric saw 21 a disk-shaped blade of first electric saw 22 second electric saw 22 a of second electric saw Disk-shaped blade

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-54-112096 (JP, A) JP-A-57-123006 (JP, A) JP-A-63-189202 (JP, A) 44496 (JP, U) Japanese Utility Model Showa 55-146206 (JP, U) Japanese Utility Model Showa 55-99812 (JP, U) Japanese Utility Model Utility Model Application 57-121501 (JP, U) (58) Field surveyed (Int. ⁷ , DB name) B27F 1/08 B27B 5/02 B27B 27/00

Claims (1)

(57) [Claims] An end of one of the vertical and horizontal frame members to form a rectangular frame by fitting a vertical or horizontal frame member having a concave or convex recess at an end thereof. A frame-shaped notch forming device for forming a convex notch in a portion, comprising: a fixed base for fixing the frame material; and a convex notch formed at an end of the frame material fixed to the fixed base. ; and a cutting portion provided, the cutting portion, on one surface of the rail members, perpendicular to said one surface, and said first to rail members of the two to form two cuts along the length of the , And two second electric saws forming notches reaching the notches from both side surfaces of the end of the frame material, respectively. The disc-shaped blade of the first electric saw is provided with the frame. Disposed at right angles to one surface of the material,
The disk- shaped blade of the electric saw is arranged at a right angle to the blade of the first electric saw, and is arranged at a predetermined angle with respect to the frame member fixed to the fixed base. The outer peripheral edge of the electric saw blade and the outer peripheral edge of the second electric saw blade are arranged so as to pass on a straight line along the predetermined angle, and the first and second electric saws Is provided so as to be integrally movable along the predetermined angle, and the fixing base includes a lower surface guide portion for supporting a frame material, and the lower surface plan.
A pressing portion for pressing and fixing the frame material inside, and the two
A frame provided between the two cutting moving surfaces of the blade of the first electric saw;
A device for forming a gap in a frame, comprising: a stopper for positioning a leading end of a material .