JPH0724802A - Boring apparatus for metal fit method - Google Patents

Abstract

PURPOSE:To efficiently perform boring work for a metal jig in a metal fit method. CONSTITUTION:The rotation of a motor 76 is transmitted to main shafts 86, 88 through pulleys 80, 82, 84 and a belt and a drill 10 having a specific shape is attached to the main shafts 86, 88 and the rotation of a handle 67 is changed to the up-and-down motion of the main shafts 86, 88 by a bevel gear and a rack and the movement of a lever 103 is changed to the lateral motion of the main shafts 86, 88 by a rail and a linear wt. After a wooden member is set to a plate 40, the drill 10 is allowed to fall by the handle 67 and laterally moved as it is by the lever 103 to form a desired hole.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal fitting method punching device for making a hole for inserting a projection of a plate-like metal fitting used in the metal fitting method.

[0002]

There are various wooden frame construction methods,
One of them is the metal fitting method. This metal fitting method uses a square metal fitting A as shown in FIG. 8 and FIG. 9 and two metal fittings (a bolt and a D pin are used) of a half-moon shaped metal fitting (not shown) for all wooden members. It is a construction method of joining. The metal fitting A is the two protruding pieces 20 of the plate 200 having the U-shaped notch 201 and the circular hole 202.
3, 204, the metal member 20 of the shape as shown respectively
5,206 are welded.

Joining of a wood composite structure or the like using the metal fitting A is performed as shown in FIG. Here, the case where a girder is joined to a column is shown. Holes 301 and 302 as shown in FIG. 11 are formed in the pillar 300 in advance, and the protrusions (members 205 and 206 and the protrusions 203 and 204) of the metal fitting A are inserted into the holes to the inside and the metal fitting A is tapped downward. Push down. After that, a hole corresponding to the notch 201 and the hole 202 of the metal fitting A, and a notch (not shown, which is formed at an end portion) capable of inserting the metal fitting A are formed in the hole of the girder 310 in advance. Insert the D pin 313 into. Then, the D pin 313 has the cutout 20.
The girder 310 is dropped from the upper part of the metal fitting A until it is engaged with the base end of No. 1, and an appropriate downward pressure is applied to the girder 310, and the D pin 3 is inserted into the corresponding hole of the metal fitting A and the girder 310.
14 is inserted and fixed by the upper and lower D pins 313 and 314.

By the way, in order to attach the metal fitting A, it is necessary to make holes 301 and 302 in the pillar 300, and the shape of these holes is as shown in FIG. That is, each of the holes 301 and 302 is composed of a cylindrical hole a, a slit-shaped opening b, and a U-shaped hole c located below the opening. In addition, depending on how the wood members are joined, as shown in FIG.
In addition to the longitudinal direction, holes 301 and 302 may be formed in the transverse direction of the wooden member 300 as shown in FIG.

As a cutting tool for forming such holes 301 and 302, the present applicant first applied for a drill having a structure as shown in FIGS. 4 to 7. The details of this drill will be described in Examples, but by using this drill, the drilling work for the metal fitting A can be performed easily and in a short time. By the way, conventionally, two types of drills (twist drill, flat drill) and a milling cutter (side blade milling cutter) were used, and the drilling work was performed by exchanging the tools.

[0006]

[Problems to be Solved by the Invention] However, the metal fitting A
Even if a drill that can easily form a hole for inserting a drill has been developed, a dedicated device for mounting the drill is not provided, so that the cutting ability of the drill can be fully demonstrated and the drilling work can be performed more efficiently. The advent of devices is highly anticipated.

Therefore, an object of the present invention is to provide an apparatus capable of efficiently performing a hole-forming work for a metal fitting in the metal fitting method.

[0008]

The above-mentioned object can be achieved by the punching device for metal fitting method according to the present invention. That is, the punching device of the present invention is characterized by having the following configurations (1) to (5). (1) A base on which a wooden member is placed and supported (2) A shank and at least two cuts formed respectively by at least two grooves continuous with this shank and cut along the longitudinal direction A main body having a blade and at least two blades provided at the tip of the main body in a projecting shape at right angles to the longitudinal direction of the main body, and these blades have cutting edges on their lower end surfaces and outer peripheral surfaces. A drill having a stud is attached and is rotatably arranged on the base 1.
A spindle not less than a shaft (3) Rotation drive means provided on the base to rotate the spindle (4) Provided on the base to support the spindle so as to be vertically movable, and ascend and descend to vertically move the spindle. Means (5) Lateral moving means provided on the base for supporting the spindle in a laterally movable manner and laterally moving the spindle.

[0009]

By using the punching device of the present invention, two protrusions (metal members 205 and 206 and protrusions 203 and 204) of the plate-like metal fitting (see FIG. 8) used in the metal fitting method are used.
In order to make a hole for inserting the insert by a single cutting process, a hole making device having two axes arranged at intervals according to the intervals of the protrusions of the metal fitting A is prepared in advance, and each of the main shafts is shown in FIGS. 4 to 7. Install a drill with such a structure and place a wood member on the base.
However, the orientation of the wooden member with respect to the base may be either a case of making a hole in the longitudinal direction of the wooden member (see FIG. 11) or a case of making a hole in the transverse direction of the wooden member (see FIG. 12). Place the wooden member according to.

When the positioning of the wooden member is completed, the rotary drive means is operated to rotate the main shaft and rotate the drill, while the elevating means lowers the drill to a predetermined depth. Then, a cylindrical hole a (see FIG. 11) having a predetermined diameter and depth is first formed in the wooden member by the drill. When the formation of the hole a is completed, the horizontal moving means moves the drill in the horizontal direction in parallel as it is for a predetermined distance. Then, the slit-shaped opening b and the U-shaped hole c are simultaneously formed by the drill, and the drilling of the predetermined shape is completed. Then, pull out the drill from the hole and stop the rotation of the drill.

As described above, in particular, by using the punching device having the two axes in which the distance between the two holes is set in advance, two holes corresponding to one metal fitting A can be formed by one punching operation. It is possible to perform the drilling work for the metal fitting A efficiently. Furthermore, in addition to the above configurations (1) to (5),
A wooden member is provided with a fixing means for holding the wooden member on the base, and the fixing means is attachable to and detachable from one relative side wall or the other relative side wall of the base according to the dimensional standard of the wooden member. Not only can be securely clamped by the fixing means by placing it on the base, but also when the hole is formed in either the longitudinal direction or the transverse direction of the wooden member, the direction of the wooden member is changed to the base. It is possible to put it.

[0012]

EXAMPLES The punching device of the present invention will be described below based on examples. FIG. 1 is a top view of the device according to the embodiment.
2 is a side view of the apparatus of FIG. 1 as seen from the direction of arrow A.
FIG. 3 is a side view of the same as seen from the arrow B.
In this punching device, a rectangular base (plate)
The 40 supports various components described below, and can mount a wooden member depending on the case where a hole is formed in the longitudinal direction or the transverse direction of the wooden member. or,
The plate 40 has a frame-shaped leg plate 41 at the bottom thereof.

In this embodiment, a holding plate 42 for holding a wooden member is detachably attached to the side wall of the leg plate 41 by two pusher shafts 44 and 46, and the holding plate 4 is attached.
2, the pusher shafts 44, 46 and the like constitute a fixing means. The pusher shafts 44, 46 are holes 48, 50 formed in one side wall of the leg plate 41 (see FIG. 3).
And is fastened with the quick clamp knobs 52 and 54 so as not to come off. Here, in order to correspond to the case of making a hole in the longitudinal direction of the wooden member, the pusher shaft 44,
46 is inserted into the corresponding holes 48, 50. On the other hand, another hole 56, 58 (see FIG. 2) is formed in the other side wall of the leg plate 41, and when the hole is formed in the transverse direction of the wood member, the pusher shaft is formed in the hole 56, 58. Four
Use by inserting 4,46. When the pusher shafts 44 and 46 are passed in this direction, the holding plate 42 is shaped like the left side wall of the plate 40 in FIG.

A column plate 59 is erected on the plate 40, and a bracket 60 is mounted on the column plate 59 in parallel with the plate 40. Bracket 6
Two columns 61a and 61b extend upward from 0, the top plate 70 is attached to the upper ends of the columns 61a and 61b, and the lifting blocks 62 are attached to the columns 61a and 61b.
Is fitted so that it can move up and down. Springs 63a and 63b (only one of which is shown) are inserted through the columns 61a and 61b located below the elevating block 62, and the elevating block 62 is biased upward by the springs 63a and 63b.

A rack 64 is fixed to the central portion of the lifting block 62. A spur gear 65 fitted on a pinion shaft 66 meshes with the rack 64. A four-arm handle 67 is attached to one end of the pinion shaft 66, and the pinion shaft 66 is supported by two needle bearings 68 and 69 so as to be horizontally rotatable. Therefore, when the handle 67 is rotated, the rotation of the pinion shaft 66 is supported by the bearings 68 and 69, and the rack 64 moves up and down within an allowable range with the rotation of the spur gear 65. The elevating block 62 moves up and down with the movement.

The elevating block 62 can be locked by a clamp lever 74, and if the elevating block 62 is locked, the handle 67 can be locked.
Cannot be turned, and the current position of the lifting block 62 is fixed. In this embodiment, the columns 61a, 61b,
The elevating block 62, the rack 64, the spur gear 65, the pinion shaft 66, the handle 67 and the like constitute an elevating means.

A motor 76 is attached to the elevating block 62 via a lateral moving means, which will be described later, and a drive pulley 80 is fitted to a rotary shaft 78 of the motor 76. On both sides of the drive pulley 80, a drill 1 described later having a specific shape is provided.
0 is fitted to the main shaft (2 shafts) 86 and 88 to be mounted,
And a driven pulley 82 having a diameter larger than that of the drive pulley 80,
84 are juxtaposed. The main shafts 86, 88 are respectively provided with housings 90, 9 fixed to a housing plate 89.
1 is rotatably supported by angular bearings 92 and 93 provided in the drive unit 1, and between the driven pulley 82 and the bearing 92 and between the driven pulley 84 and the bearing 93.
U nuts 94 and 96 are respectively fixed to main shaft portions between and, and the main shafts 86 and 88 are supported by the U nuts 94 and 96 and the bearings 92 and 93.

The three pulleys 80, 82, 84 are shown in FIG.
As shown in FIG. 5, the timing belt 97 is applied, and the rotation of the motor 76 is transmitted to the driven pulleys 82 and 84 by the belt 97 via the drive pulley 80, and the driven pulleys 82 and 8
4 rotates in the same direction. These motor 76, pulley 8
The rotary drive means for rotating the main shafts 86, 88 is constituted by 0, 82, 84, the belt 97, etc., and the drill 10 rotates in the same direction.

The components such as the motor 76, the pulleys 80, 82, 84 and the main shafts 86, 88 can be laterally moved in the left-right direction in FIG. That is, two support shafts 98a and 98b are horizontally provided on the elevating block 62, and the LM is provided at the ends of the support shafts 98a and 98b.
The bracket 99 is fixed. Further, a long rail 100 is attached to the LM bracket 99 in the horizontal direction, and a linear way 101 slides on the rail 100. The linear way 101 is attached to the LM plate 102 provided on the rotation driving means side,
The LM plate 102 and the linear way 101 move integrally.

Further, one end 104 of the grip lever 103 is pivotally mounted on the LM bracket 99, and the grip lever 1
03 can be moved left and right within a certain angle range (see the chain double-dashed line in FIG. 3). An end portion of the LM plate 102 is connected to the lever 103 via a cam follower 106, and a rotary grip 108 is provided at the other end of the lever 103. Therefore, the rotating grip 108
Holding the lever 103 and moving the lever 103 left and right,
LM plate 102 (that is, the linear way 101) slides on the rail 100 with the movement of the main shaft 86,
88 can be laterally moved together with the motor 76 and the like.

The grip lever 103 is a clamp lever 1.
It can be locked at any position by 10 and can fix the lateral positions of the main shafts 86, 88. Further, in FIG. 1, the lateral movement of the LM plate 102 to the left is blocked by a stop bolt 112 attached to a left end side of the LM bracket 99 by a stopper holder 111, and the LM plate 102 is stopped by the stop bolt 1.
The point of contact with 12 is the limit point to the left.

Next, the drill 1 attached to the spindles 86 and 88
4 is a general view of the blade, FIG. 5 is a bottom view of the blade, FIG. 5 is a cross-sectional view of the main body, and FIG. The drill 10 shown here is composed of a shank 1, a main body 2 that is continuous with the shank 1, and a blade 3 that is attached to the tip of the main body 2 in a direction perpendicular to the longitudinal direction of the main body 2 and in a protruding shape. . The shank 1 is a straight shank in this embodiment, with a neck 4 between the shank 1 and the body 2.

The main body 2 has two linear grooves 21 and 22 in its longitudinal direction, and two linear cutting edges 23 and 24 are formed along the grooves 21 and 22, respectively. (See Figure 6). In addition, linear linear recesses 25 and 26 are formed near the cutting edges 23 and 24, respectively, and the recesses 25 and 26 are for reducing friction. As shown in FIG. 5, the blade 3 in this embodiment is composed of two blades 3a and 3b having the shapes shown in the drawing.
The a and 3b are provided at symmetrical positions of 180 degrees with respect to the central axis of the main body 2. Cutting blades 31 and 32 are formed on the lower end surfaces of the blades 3a and 3b on the forward rotation (arrow direction) side, respectively. Further, in FIG. 7, on the outer peripheral surfaces of the blades 3a and 3b, the cutting blades 33,
34 are formed respectively. Cutting edges 31, 3 on the lower end surface
2 is raised from the lower end surface, this is the blade 3a, 3
It is formed by obliquely cutting the lower end surface of b (see FIG. 7).

The diameter of the main body 2 is a hole 30 into which the protrusion of the metal fitting A (see FIG. 8) used in the metal fitting method is inserted.
It has a size corresponding to the width of one slit-shaped opening b (see FIG. 11). Further, the diameter of the entire blade 3 including the blades 3a and 3b is a dimension corresponding to the diameter of the cylindrical hole a, and the thickness of the blade 3 is a dimension corresponding to the height of the U-shaped hole c. . Next, a boring operation by the boring device configured as described above will be described. First, the drill 10 having the above structure is attached to the main shafts 86 and 88 of the apparatus. Also, a wood member (not shown) is placed on the plate 40. At this time, when forming a hole in the longitudinal direction of the wooden member (see FIG. 11), the pusher shafts 44 and 46 and the holding plate 42 are set as shown in FIG. At this time, the wood member is sandwiched in the direction indicated by the two-dot chain line of width X. When forming a hole in the transverse direction of the wooden member (see FIG. 12), the pusher shafts 44, 4
6 and the holding plate 42 are set on the other side wall of the plate 40. At this time, the wooden member is sandwiched in the direction indicated by the two-dot chain line of width Y.

In the metal fitting method, the standard dimensions are set for the first time regardless of whether the hole is formed in the longitudinal direction or the transverse direction of the wooden member. For example, in FIG. 1, the hole is formed in the longitudinal direction and the transverse direction. The widths X and Y of the wooden member when formed are 103 mm and 240 mm, respectively. Therefore, in order to cut the wood member having these dimensions, it is preferable to previously determine the dimensions of the plate 40 and the like according to the standard.

When the positioning of the wooden member is completed, the device is turned on and the motor 76 is rotated. Then, the clamp lever 74 is operated to unlock the lifting block 62, and the handle 67 is rotated to lower the spindles 86, 88, that is, the drill 10. As described above, this lowering causes the pinion shaft 66 to rotate as the handle 67 rotates, and the spur gear 65 fixed to the pinion shaft 66 also rotates to lower the rack 64. Is performed by descending along the columns 61a and 61b.

A handle 67 while rotating the drill 10.
When pushed down, the wood members are cut into a circular shape by the cutting blades 31, 32 on the lower end surfaces of the blades 3a, 3b and the cutting blades 33, 34 on the outer peripheral surfaces. By pushing the drill 10 to a depth that allows the protrusion of the metal fitting A to be completely inserted, a cylindrical hole a having a predetermined diameter can be formed. When the formation of the hole a is completed, the elevating block 62 is locked by the clamp lever 74, and the depth position of the drill 10 with respect to the wooden member is maintained.

Then, this time, the drill 10 is translated in the horizontal direction as it is. This includes the clamp lever 110
After unlocking the grip lever 103 by operating, the lever 103 is moved to the right by the rotating grip 108 (see FIG. 3). Then, the LM plate 102 is pulled by the lever 103, and the linear way 101
Slides on the rail 100 to the right, and the main shafts 86, 8
8, the drill 10 moves to the right (see the chain double-dashed line in FIG. 3).

As a result, a slit-shaped opening b is formed by the cutting edges 23 and 24 of the main body 2. At the same time, cutlery 3
The U-shaped hole c is opened by the cutting blades 33 and 34 on the outer peripheral surfaces of a and 3b, and the bottom surface of the hole c is also cut by the cutting blades 31 and 32 on the lower end surfaces of the blades 3a and 3b. And
When the drill 10 is laterally moved to a distance sufficient to slide the metal fitting A, a slit-shaped opening b having a predetermined width and length and a U-shaped hole c having a predetermined width and height are formed. finish.

After the formation of the holes is completed, the lever 103 is moved to move the drill 10 laterally to its original position, and the handle 67 is used to raise the drill 10. Then, the switch is turned off, the motor 76 is stopped, and the lifting block 62 and the lever 103 are locked by the clamp levers 74 and 110, respectively, if necessary. As described above, by using the hole making device of the present invention, two holes for inserting one metal fitting A can be made by one cutting process, and the hole making operation becomes very efficient. . Furthermore, since the hole punching device as described above does not need to be so large and heavy in view of the size of the wood member to be cut, it can be portable and, in this case, not only the factory but also the site. However, it is possible to perform drilling work, which improves usability.

Needless to say, the present invention is not limited to the device having the structure shown in the above embodiment. For example, although the device of the above embodiment has two axes, it may have one or more axes depending on the number and positions of the holes.
In addition, the design of the elevating means, the lateral moving means, the rotation driving means, and the like can be changed as appropriate. Also, the structure of the drill is not limited to the one shown in the figure, and for example, three or more grooves may be formed and three or more linear cutting edges may be formed, or two or more spiral grooves may be formed. The number of spiral cutting edges may be two or more. However, when three or more grooves are formed, whether the shape is linear or spiral, the number of grooves is actually preferably 3 to 4 in consideration of cutting ability and the like. Further, the blade attached to the tip of the main body may be composed of three or more blades. However, also in this case, about 4 to 15 sheets are appropriate in view of cutting ability and the like.

[0032]

As described above, since the metal fitting method boring machine of the present invention is constructed as described above, it is possible to set two axes corresponding to the standard of the method, in particular. In the metal fitting method of joining wood members using a plate-shaped metal fitting having two protrusions,
The hole for inserting the protrusion of the metal fitting can be easily and quickly opened, the drilling work can be performed efficiently, and it greatly contributes to the metal fitting method.

Further, a fixing means for sandwiching the wooden member on the base is provided, and this fixing means is attachable to and detachable from one relative side wall or the other relative side wall of the base according to the dimensional standard of the wooden member. With this, regardless of whether the hole is formed in the longitudinal direction or the transverse direction of the wooden member, the wooden member can be reliably clamped on the base by changing the orientation of the wooden member by the fixing means.

Furthermore, by making the punching device portable,
Not only in the factory, but also in the field, it is possible to perform drilling work for the wooden members.

[Brief description of drawings]

FIG. 1 is a top view of an apparatus according to one embodiment.

FIG. 2 is a side view of the device shown in FIG. 1 when viewed from an arrow A.

FIG. 3 is a side view of the device shown in FIG. 1 as viewed from the arrow B.

FIG. 4 is a diagram showing an entire drill attached to a spindle of the apparatus shown in FIG.

5 is a bottom view of the blade of the drill shown in FIG. 4. FIG.

6 is a cross-sectional view of the body of the drill shown in FIG.

FIG. 7 is an outer peripheral view of the blade of the drill shown in FIG.

FIG. 8 is a perspective view of a metal fitting used in the metal fitting method.

9 is a front view of the metal fitting shown in FIG.

FIG. 10 is a view for explaining a method of joining the wooden members using the metal fitting shown in FIG.

FIG. 11 is a plan view for explaining the shape and position of the hole into which the protrusion of the fitting shown in FIG. 8 is inserted.

FIG. 12 is a plan view for explaining the shape of the hole into which the protrusion of the metal fitting shown in FIG. 8 is inserted and a position different from that.

[Explanation of symbols]

 10 drill 40 base (plate) 64 rack 65 spur gear 66 pinion shaft 67 4 arm handle 76 motor 86, 88 main shaft 101 linear way 102 LM plate 103 grip lever

Claims (3)

[Claims] 1. A metal fitting method for joining a wood member using a plate-shaped metal fitting having two protrusions on its side edges, and a hole making device for making a hole in the wood member for inserting the protrusion of the metal fitting. At least two cutting blades each formed by a base on which a wooden member is placed and supported, a shank, and at least two grooves continuous with the shank and cut along the longitudinal direction. And a blade having at least two blades attached to the tip of the blade in a direction perpendicular to the longitudinal direction of the body and projecting, the blade having a cutting edge on each of the lower end surface and the outer peripheral surface. A drill having the same is attached, and one or more spindles rotatably arranged on the base, rotation driving means provided on the base for rotating the spindle, and provided on the base, Spindle up and down Elevating means for movably supporting and vertically moving the main shaft, and laterally moving means provided on the base for laterally moving the main shaft and laterally moving the main shaft. A characteristic metal fitting method drilling device. 2. The punching device comprises a fixing means for holding the wooden member on the base, the fixing means depending on the dimensional standard of the wooden member. The metal fitting method boring device according to claim 1, wherein the boring device is attachable to and detachable from the relative side wall. 3. The punching device for metal fitting method according to claim 1, wherein the punching device is portable.