JP2840942B1 - Simple dowel hole drilling machine - Google Patents

Abstract

There has been no simple dowel hole drilling machine that can simultaneously and easily and accurately drill a dowel hole on a plate surface of a plate material and a dowel hole on a wood opening. The plate material fixing device is provided with a drill contact portion having a drill guide plate having a plurality of slits formed at appropriate intervals in a vertical direction on an upper surface of a pedestal having a horizontal table plate. A plate material fixing portion having a back plate for setting a plate material for forming a dowel hole is provided in the portion, and a convex portion for locking the plate material is formed at a lower front end of the back plate, while a drill body is provided with a motor. Is attached to a box-shaped frame member, and a drill blade is detachably attached to both ends of a rotating shaft driven by the motor, and a guide pin that can be inserted into a slit of the plate material fixing device is provided on a side surface of the box-shaped frame member. It is characterized in that it protrudes in the direction perpendicular to the drill blade, and that the box-shaped frame is provided with a grip portion having a switch.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple dowel hole punching machine which can easily assemble dowel holes for wooden furniture having a dowel joint structure.

[0002]

2. Description of the Related Art Conventionally, a dowel assembly structure is known as one of the structures for joining a board surface of a sheet material and a wooden edge with wooden assembled furniture or the like. As shown in FIG. 8, the dowel assembly structure includes a dowel hole 2b formed in the plate surface 2a of the plate member 2 and a cut end 3a of another plate member 3.
Wooden dowel 1 with adhesive applied to dowel hole 3b
Are assembled to form a single unit.
There are two methods of punching such dowel holes: a method of making dowel holes one by one by hand, and a method of simultaneously making a plurality of dowel holes by a dowel dedicated machine.

[0003]

Since the dowel holes are manually drilled in advance by blacking them one by one with a small drill, it takes time to prepare the dowel holes, and it takes a long time to prepare the dowel holes. Despite being attached, it was difficult to accurately set the interval between the dowel holes. In addition, it is difficult to accurately position the corresponding dowel holes between the plate surface 2a of the plate material and the lip 3a, which requires skill.

On the other hand, in the dowel-dedicated machine, although the dowel hole can be accurately formed, a large installation place is required.
It cannot be moved because it is fixed and installed. Also, there is a problem in that a dedicated dowel machine is expensive to purchase, and if not mass-produced, depreciation costs are high. Further, since it is a dedicated machine, it is suitable for mass processing, but there is a problem that it takes time to set a plate material and drive the dedicated machine. Further, the dowel hole on the plate surface 2a of the plate
Since it is necessary to pierce the dowel hole a separately, there is a problem that it takes time to set.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and provides a simple dowel hole drilling machine capable of simultaneously and easily and accurately drilling a dowel hole on a plate surface of a plate material and a dowel hole on a wood opening. To provide.

[0006]

The present invention has the following configuration to achieve the above object. That is, a simple dowel hole drilling machine according to claim 1 of the present invention comprises a plate material fixing device for setting a plate material and a drill body for drilling a dowel hole, wherein the plate material fixing device is a pedestal having a horizontal table plate. A drill contact portion having a drill guide plate formed with a plurality of slits in the vertical direction at appropriate intervals on the upper surface is erected,
A plate material fixing portion having a back plate for setting a plate material for forming a dowel hole is provided at the drill contact portion, and a convex portion for locking the plate material is formed at a lower end of the front surface of the back plate. The main body mounts a motor on a box-shaped frame member, and detachably attaches drill blades to both ends of a rotating shaft driven by the motor, and can be inserted into a slit of the plate material fixing device on a side surface of the box-shaped frame body. A special guide pin protrudes in a direction perpendicular to the drill bit, and a grip portion provided with a switch is provided on the box-shaped frame. In addition, the simple dowel hole drilling machine according to claim 2 is provided with legs on both side end surfaces of the table plate that are grounded while the lower surface of the table plate is floated, and a rotatable connecting rod is provided on the back plate. Pivot,
The connecting rod is provided with a rotatable holding plate for holding a plate material between the connecting rod and a back plate. Further, the simple dowel hole drilling machine according to claim 3 is characterized in that the drill guide plate and the back plate are integrally attached to a support plate. Further, the simple dowel hole drilling machine according to claim 4 is characterized in that the plate material set on the lower surface of the table plate and the plate material set on the back plate are fixed by clamps.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated embodiment will be described below in detail. FIG. 1 is an explanatory top perspective view showing the structure of a simple dowel hole drilling machine formed according to the present invention. The plate fixing device 10 includes a drill contact portion 30 on the upper surface of the base 20.
And a plate fixing portion 4 is provided above the drill contact portion 30.
0 is provided. More specifically, the pedestal 20
Legs 23 are provided at both ends of the table plate 21, and when the legs 23 are grounded, the lower surface of the table plate 21 is in a floating state, and is fixed so that a gap is formed between the leg and the ground surface.

The drill contact portion 30 is provided upright on the upper surface of the table plate 21. A drill guide plate 33 is integrally provided on the front surface of the support plate 31, and a reinforcing plate is provided on the back surface of the support plate 31. 35 to provide reinforcement. Drill guide plate 3
3, a plurality of slits 37 are formed in the vertical direction at the same pitch as the dowel holes to be drilled. The slit 37 is formed in a size capable of moving up and down while inserting and sliding a guide pin formed on the distal end surface of a drill described later. By sliding the guide pin upward, the drill blade of the drill body is brought into contact with the opening of the plate material fixed to the plate material fixing portion 40, and by sliding the guide pin downward, the drill blade of the drill body is moved to the table. It is configured to pierce by hitting the plate surface of a plate material fixed to the lower surface of the plate 21. The end of the table plate 21 slightly protrudes from the drill guide plate 33.

Next, a description will be given of the plate fixing portion 40. The upper end of the back plate 41 and the drill guide plate 33 is fixed to the support plate 31, and the lower end of the front surface of the back plate 41 is a projection for locking the plate. A locking plate 42 serving as a shape is fixed. The thickness of the locking plate 42 is such that a dowel hole can be drilled at the mouth of the plate while the plate is locked.
It shall be no more than half the thickness of the plate. The back plate 41 is thicker than the drill guide plate 33, and is configured such that the front surface of the locking plate 42 and the distal end surface of the table plate 21 are substantially vertical. One end of a connecting rod 43 is rotatably supported by pins 45 on both side end surfaces of the back plate 41, and is attached to the other end of the connecting rod 43 so as to clamp a pressing plate 47. Is rotatably supported by a pin 49. In addition, the convex part which locks a board | plate material is not limited to the locking board 42, What is necessary is just to be able to lock a board | plate material, and it may be formed with a several protrusion.

When the connecting rod 43 is rotated about the pin 45 to be horizontal with respect to the front back plate 41, an interval for inserting a plate material between the back plate 41 and the pressing plate 47 parallel to the back plate 41 is formed. On the other hand, the plate surface of the holding plate 47 is formed so as to come into contact with the upper edge of the reinforcing plate 35 when rotated toward the rear support plate 31 side. In the embodiment, the connecting rod 43 is connected to the back plate 4.
The supporting plate 47 is rotatable toward the support plate 31 while being pivotally supported on the upper part of the first unit 1. However, the length of the connecting rod 43 is set to a length that rotates the pressing plate 47 to the back surface on the support plate 31 side. It is not necessary to form. The connecting position of the connecting rod 43 is not particularly limited as long as the connecting rod 43 is long enough to allow a plate member to be inserted between the back plate 41 and the pressing plate 47 when the connecting rod 43 is horizontal.

Further, the support plate 31 and the drill guide plate 33 constituting the drill contact portion 30 and the back plate and the retaining plate 42 constituting the plate material fixing portion may be formed integrally. Alternatively, the support plate 31 and the drill guide plate 33 may be formed at the same height, and the back plate 41 may be fixed to the upper end surfaces of the support plate 31 and the drill guide plate 33.

Next, the configuration of the drill body will be described with reference to FIGS. The drill body 50 has a guide pin 53 protruding from the front of a body 51 and a grip 5 on the rear.
5 provided with drill blades 57 and 59 projecting from upper and lower surfaces. The main body 51 includes a motor 60 and upper and lower plates 6.
1 and 63 and a front and rear plate 65, 67, which are attached to a box-shaped frame 69. The front plate 65 is provided with two upper and lower guide pins 53. The guide pins 53 are inserted into the slits 37 so that the front plate 65 can be moved up and down while making contact with the drill guide plate 33.

The drill blades 57 and 59 are provided with a motor 60.
Are removably attached to both ends of a rotating shaft 70 rotated by the drive of, and are coaxial in the vertical direction.
The grip 55 is provided with a switch 71, and the motor 60 is driven or stopped by turning the switch 71 on or off. In addition, the grip 55
Is provided with a power cord 73 connected to the motor 60.

The method of using the simple dowel hole drilling machine of the above embodiment will be described with reference to FIGS. 6 and 7. First, the plate material A is inserted into the lower surface of the table plate 21 to determine the position of the plate surface for drilling the dowel hole. It is made to slightly protrude from the front end surface of the table plate 21. That is, the table plate 21 is placed on the plate material A and positioned. Next, the connecting rod 43 is rotated to the front surface of the back plate 41 to insert the plate material B between the holding plate 47 and the back plate 41 to lock the lower end surface of the plate material B with the locking plate 42. After the plate B is locked to the locking plate 42, the holding plate 47 is lowered to hold the plate B with the back plate 41.

Next, the guide pins 53 of the drill body 50 are inserted into the slits 37, and the drill blades 57, 59 are inserted into the plate material A.
Of the plate material B and the opening of the plate material B. After the setting is completed, the switch 71 is turned on to operate the motor 60. The dowel holes may be formed by pressing the spiral drill blades 57 and 59 that are rotated by the operation of the motor 60. To drill a dowel hole, slide the guide pin 53 downward with the guide pin 53 inserted into the slit 37, and
9 against the predetermined position of the plate material A, and the drill body 5
Drill by pressing down 0. Next, the guide pin 53 may be slid in the slit 37, pulled up and brought into contact with a predetermined position of the cut edge of the plate B, and then the drill body 50 may be pushed up to perform drilling.

After drilling a pair of dowel holes, the guide pins 53 are pulled out of the slits 37 and inserted into the adjacent slits 37, and the holes are drilled on the plate surface of the plate material A and at the opening of the plate material B as described above. Thus, the guide pin 53
Are successively moved to the adjacent slits 37 so that the dowel hole can be accurately and easily drilled.
The dowel hole in the plate surface of the plate material A and the dowel hole in the opening of the plate material B are drilled by moving the drill body 50 up and down, and the drill body 50 moves up and down while sliding the guide pin 53 in the slit 37. Therefore, it is possible to pierce at an accurate facing position. Further, since the drill 50 is moved by replacing the guide pin 53 with the adjacent slit 37, not only the interval between the dowel holes is accurate, but also the position of the dowel hole is determined by the slit 37 formed in advance. No previous blacking work is required.

FIG. 8 is a perspective view showing another embodiment of the plate material fixing device. This embodiment is a simplified version of the configuration of the above embodiment. Therefore, the same reference numerals are given to the common components, and description thereof will be omitted. That is, the legs 23 provided at both ends of the table plate 21, the connecting rod 43 of the plate fixing portion 40 and the pressing plate 47 are omitted, and a clamp 75 is provided instead of the legs 23 and the pressing plate 47. The clamp 75 has a configuration in which the plate is fastened by one end surface of the C-shaped main body 77 and a fastening bolt 79 provided on the other end, but is not limited to this, and the plate can be fastened. The structure is not limited as long as it is appropriate.

In order to use the plate material fixing device of the second embodiment, the table plate 21 is placed on the plate material A 'and fixed by clamping with the clamp 75. Next, the plate material B' is engaged with the locking plate 42. It is stopped and clamped between the back plate 41 and the clamp 75. After fixing the plate material A 'and the plate material B' in this way, the guide pin 53 of the drill body 50 is inserted and set in the slit 37, and the dowel hole may be formed in the same manner as in the first embodiment.

In each of the first and second embodiments, the dowel holes can be formed obliquely by setting the plate material A and the plate material A 'obliquely with respect to the front end surface of the table plate 21. it can. In addition, since it can be drilled coaxially with the opening of the plate material fixed at the top,
It can be drilled very accurately.

[0020]

In the simple dowel hole drilling machine according to the present invention, the plate surface of the plate and the dowel hole of the opening can be coaxially drilled just by moving the drill body up and down, so that they can be accurately opposed to each other. Preparation is easy because it is not necessary to perform blackening in advance. Also, since no blacking work is required, anyone can use it without skill. In addition, the work is simple, suitable for small-quantity production, and it is small in size and does not require an installation space. In addition, because it is small, it is easy to move and you can work anywhere,
Easy to store and transport. Further, the perforation can be accurately performed without blackening in any direction of the plate surface, and the setting of the plate material is simple.

[Brief description of the drawings]

FIG. 1 is a perspective view of a plate material fixing device according to a first embodiment.

FIG. 2 is a longitudinal sectional view of the same.

FIG. 3 is a side view of a main part showing an operation of a holding plate.

FIG. 4 is a side view of the drill.

FIG. 5 is a perspective view of the drill.

FIG. 6 is an explanatory perspective view showing a state in which a drill is set in a plate material fixing device and used.

FIG. 7 is a perspective view showing a state in which the plate material is set obliquely in the plate material fixing device.

FIG. 8 is a perspective view showing a second embodiment of the plate material fixing device.

FIG. 9 is an exploded perspective view for illustrating the dowel assembly structure.

[Explanation of symbols]

 Reference Signs List 10 plate material fixing device 20 pedestal 21 table plate 23 legs 30 drill contact portion 31 support plate 33 drill guide plate 35 reinforcing plate 37 slit 40 plate material fixing portion 41 back plate 42 locking plate 43 connecting rod 45 pin 47 pressing plate 49 pin 50 Drill body 51 Body 53 Guide pin 55 Handle 57, 59 Drill blade 60 Motor 61 Upper plate 63 Lower plate 65 Front plate 67 Rear plate 69 Box frame 70 Rotating shaft 71 Switch 73 Power cord 75 Clamp

Claims (4)

(57) [Claims] 1. A plate material fixing device for setting a plate material and a drill body for drilling a dowel hole, wherein the plate material fixing device is provided with a plurality of slits in a vertical direction at appropriate intervals on an upper surface of a pedestal having a horizontal table plate. A drill contact portion having a drill guide plate formed with an upright is provided, a plate material fixing portion having a back plate for setting a plate material for forming a dowel hole is provided in the drill contact portion, and a lower front surface of the back plate is provided at a lower front end of the back plate. Is formed with a convex portion that locks the plate material, while the drill body attaches a motor to a box-shaped frame material, and detachably attaches a drill blade to both ends of a rotating shaft driven by the motor. On the side surface of the box-shaped frame, a guide pin that can be inserted into a slit of the plate material fixing device is provided so as to project in a direction orthogonal to the drill blade,
A simple dowel hole drilling machine further comprising a grip portion provided with a switch on the box-shaped frame. 2. The both sides of the table plate are provided with legs that contact the ground with the lower surface of the table plate floating, and a rotatable connecting rod is supported on the back plate, and the connecting rod is 2. A simple dowel hole drilling machine according to claim 1, wherein a holding plate for holding the plate material is rotatably provided between the back plate and the back plate. 3. The simple dowel hole drilling machine according to claim 1, wherein the drill guide plate and the back plate are integrally attached to a support plate. 4. The simple dowel hole drilling machine according to claim 1, wherein the plate material set on the lower surface of the table plate and the plate material set on the back plate are fixed by clamps.