JPH0321926Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Industrial field of application) This invention is used in log building by creating a roughly semicircular notch that serves as a joint for overlapping logs while making them perpendicular to each other. and a reinforcing bolt hole provided in the center of the notch, respectively.When the logs used for log building are stacked in a parallel grid shape,
In order to improve the adhesion between the logs, we focused on providing a flat contact surface on the upper surface in the longitudinal direction of the logs (on the upper and lower surfaces if necessary), creating a simple and compact joint for logs. The purpose is to provide processing machines.

(Prior art) When constructing a wall of logs by overlapping logs orthogonally, it is necessary to have approximately semicircular notches on both logs that overlap at right angles. Traditionally, to drill holes, workers at log house construction sites used tools such as chainsaws, or special machine tools were used at factories.

[The problem that the invention aims to solve] However, the former is not only troublesome and time-consuming;
Cutting marks at joints tend to become distorted, so machining them requires skill, and the latter requires expensive specialized equipment; logs with circular cross sections are held in large-scale clamping equipment, and several cutting steps are required. Since we are trying to configure the assembly (making the material into the required shape, making tenons, digging holes, and notching) with a single machine tool, the equipment itself is inevitably complex and large. I had no choice but to become

[Structure of the idea]

(Means for Solving the Problems) Therefore, in order to eliminate the above-mentioned drawbacks, this invention has an axis that is orthogonal to the axis of the vertical spindle head of the upright drilling machine, and is opposed to the front of the column of the upright drilling machine. A horizontal spindle head is attached to an upright drilling machine, and on the table of the upright drilling machine, log receiving rulers with a 90-degree folding screen bend and having a ruler surface A are aligned horizontally on the left and right under the vertical spindle head, and the ruler surface A is aligned horizontally. The front of the column is facing the direction in which the horizontal spindle head is facing, and a clamping device is installed on the side of the table to press the log against the ruler surface A of the log receiving ruler. It is an object of the present invention to provide a log joint processing machine characterized in that the head is also provided with a feeding device for the spindle head in the same way as the vertical spindle head.

(Embodiment) An embodiment of this invention will be described below. A horizontal spindle head 4 having an axis perpendicular to the axis of the vertical spindle head 2 of the upright drilling machine 1 and facing the column front face 3 of the upright drilling machine 1 is attached to the upright drilling machine 1, and on the table 5 of the upright drilling machine 1, there is a log receiving ruler 6 with a 90-degree folding screen bend and a ruler surface A.
6', using the bolt holes 7 and 7', so that they are aligned in a horizontal line vertically below the vertical spindle head 2, horizontally to the left and right, and with the ruler plane A facing in the direction that the column front face 3 faces. In addition, a clamping device 9 is installed on the side of the table 5, which is fixed so as to face the direction in which the horizontal spindle head 4 faces, and which presses the log 8 against the ruler surface A of the log receiving rulers 6, 6'. is cylinder 10
A clamping tool 11 and a support stand 12 are attached to the tip of the main shaft.
The horizontal spindle head 4 is provided with a spindle head feeding device 13 similar to the vertical spindle head 2.
This log joint processing machine is characterized in that a sliding table 15 fitted into the log is provided so as to be able to be fed and driven by a cylinder 16, and a hand drill 17 is fixed on the sliding table 15.

In addition, a roller stand 18 for assisting in the feeding and feeding of logs may be attached to this device.

The driving method of the slide table 15 may be replaced with a driving method using a feed handle instead of the method using the cylinder 16.

(Function) In this usage method, the log 8 to be processed is placed on the roller stand 1.
The log 8 is placed on top of the log 8, and the log 8 is sent out in the direction of the drill using the assistance of the log 8 and the rolling of the log 8 on the roller. When the part where a substantially semicircular notch is to be made in the log 8 reaches vertically below the large-diameter drill 19 at the tip of the vertical spindle head 2, the cylinder 10 of the clamping device 9 is activated to clamp the log. Ingredients 1
1, hold the log 8 between it and the regular plane A. At this time, the large abutting surface 20 and the small abutting surface 21, which were previously formed on the log 8 using a circular saw or the like, abut against the ruler surface A and the clamping tool 11, respectively.

Due to the positional relationship between the log receiving rulers 6, 6' and the vertical spindle head 2, the large diameter drill 1 is placed at the specified position on the log 8.
9 can be lowered to drill a substantially semicircular notch, but the reinforcing bolt hole 22 to be drilled in the center of the joint is made using the small diameter drill 23 of the hand drill 17. The work is completed by making a roughly semicircular notch in one joint and drilling a reinforcing bolt hole 22.

When the orthogonal logs are stacked together, the reinforcing bolt holes 22 become one reinforcing bolt hole that communicates with the other logs.
A reinforcing bolt is passed through this to firmly reinforce the joint.

[Effect of idea]

According to this invention, by skillfully utilizing the abutment surface that is pre-formed on the log with a general-purpose circular saw, it is possible not only to accurately drill approximately semicircular notches and reinforcing bolt holes in the log. Since the logs are held between straight surfaces, the logs can be held securely and efficiently.Therefore, the device for holding the logs can be simple and small, and the entire device can also be lightweight and compact. Moreover, it has many great effects such as being easy to disassemble and remove, easy to move, and can be used even when left on site.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a perspective view showing the main parts, Fig. 3 is a plan view showing the shape of a log, and Fig. 4 is a perspective view showing an embodiment of the present invention. 1, and FIG. 5 is a front view related to FIG. 3. 1...Upright drilling machine, 2...Vertical spindle head, 3...
... Column front, 4 ... Horizontal spindle head, 5 ... Table, 6, 6' ... Log receiving ruler, 7, 7' ... Bolt hole, 8 ... Log, 9 ... Clamping device, 10 ... Cylinder , 11... holding tool, 12... support stand, 13
...Feeding device, 14...Bed, 15...Sliding table, 16...Cylinder, 17...Hand drill,
18...Roller stand, 19...Large diameter drill, 2
0...Large contact surface, 21...Small contact surface, 22...Reinforcement bolt hole, 23...Small diameter drill, A...Ruler surface.

Claims (1)

[Scope of utility model registration request] A horizontal spindle head is attached to the upright drilling machine, having an axis perpendicular to the vertical spindle head and the axis of the upright drilling machine, and facing the front of the column of the upright drilling machine,
On the table of the upright drilling machine, align the log receiving rulers with ruler surface A and a 90-degree folding screen bend on the left and right sides vertically below the vertical spindle head, and align the ruler surface A in the direction in which the front of the column faces. In addition, the horizontal spindle head is fixed so as to face the direction in which it faces, and a clamping device is installed on the side of the table to press the log against the ruler surface A of the log receiving ruler. A log joint processing machine characterized by being equipped with a spindle head feeding device.