JPH0133282Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention uses logs, which are natural wood, for example, as beams of buildings, and creates notched recesses into which beams, vertical beams, beams, columns, etc. are to be installed. This invention relates to a new portable wood processing machine for forming.

[Conventional technology and its problems]

In general, natural wood, especially curved logs, is traditionally used for making beams because they are durable and inexpensive.

However, stationary woodworking machines and conventional portable power tools cannot be used to form cutout recesses in curved logs for incorporating other pillars and beams.

Therefore, as shown in Figure 6, a log (in the figure, only two opposing sides are sawn) is marked with an ink line (R), and an ink line (C) and (R) are added to indicate the part to be cut. Fix it to the railroad ties with a scraper and use a chiyona (an ax for rough cutting wood).
At present, a recess E is cut out at a predetermined position using a recess.

However, in recent years, it has been difficult to train experienced craftsmen, and unskilled carpenters have poor processing accuracy (accuracy of depth and width, as well as flatness of the bottom of the recess) in forming the notch E in the log A. Moreover, it has the disadvantage of being easily injured. In this case, especially if the concave bottom is formed with an inclination, it is not possible to erect the bundling columns accurately at right angles to the beams, which causes a serious problem when assembling the building.

In addition, the shape of the front and rear ends of the notched recess is intentionally sloped so that there is a slight gap between the front and rear ends and the base of the upturned bundle pillar, so that the bundle pillar can be firmly upset. However, when it is hand-processed by chiyona craftsmen, even if they are skilled carpenters, the notches at the front and rear ends of the notch recess E are uneven, and the angle is small, about 30 to 45 degrees. When the bundle post was seated in the recess, a gap of uneven width was created between the front and rear ends of the notched recess and the base of the bundle post, creating an unsightly problem.

Therefore, the object of this invention is to provide a processing machine that can be easily fixed to natural wood and that can accurately form a desired notch recess at a predetermined position on the side surface of the wood.

[Means to solve the problem]

In order to solve the above problems, this idea
a rectangular underframe that is provided with longitudinally freely feeding rollers on both sides of the short side; a traveling body that rides on the underframe and moves in the longitudinal direction of the underframe by the operation of a feeding mechanism;
It consists of a cutter unit support that fits into the running body and moves in the transverse direction of the underframe by the operation of the feed mechanism, and a vertical rod-shaped cutter that is supported by the support and moves up and down by the operation of the feed mechanism. It is a portable wood processing machine that rotates by the drive of a motor and has a blade section that extends the entire length on its circumferential surface, and has holes formed in each of the four corners of the underframe through which one of the nails of the scraper is inserted.

[Effect]

Here, a case will be described in which a natural wood whose opposing surfaces are parallel to each other is used, and a cutout recess is formed in the unprocessed natural surface.

First, on one side of the lumber, draw an axial ink line parallel to the axis of the lumber (this is called the position reference line), and with this lumber side facing upwards, cut the lumber into sleepers by wiping it etc. Fix it.

Next, place the wood processing machine on the sawn surface with the position reference line and the longitudinal axis of the underframe aligned, move the processing machine using rollers to the position where the notch recess is to be formed, and after adjusting the position. Fix the processing machine to the wood.
The processing machine is fixed by inserting one of the hooks of the groin, which is driven into the wood, through holes in the four corners of the underframe.

Next, the traveling body and the cutter unit are moved so that the cutter comes to the target notch recess by operating their respective feed mechanisms, and while the motor is driven to rotate the cutter, the feed mechanism Move the cutter to the position where it should be the bottom of the recess, and then move the cutter left and right within the width of the recess.

If the vertical width of the recess is larger than the length of the cutter, process the upper half and then process the lower half.

In addition, if the part where the notched recess is to be formed is within the range of movement of the traveling body, the recess is formed with the underframe fixed; if the recess is to be formed outside the range of movement of the traveling body or on an adjacent surface, this method is used. Change the fixing of the processing machine.

〔Example〕

Fig. 1 is a front view of an example of a wood processing machine according to the present invention in a usage mode, Fig. 2 is a right side view of the same, and Fig.
The figure is a plan view of the same, and FIG. 4 is a partially cutaway right side view of the same, where 1 is natural wood (hereinafter simply referred to as wood), and 2 is a wood processing machine fixed to the wood 1 with braces 3a and 3b.

The wood processing machine 2 has an underframe 4 fixed to the wood 1.
a traveling body 5 that rides on this underframe 4 and moves in the longitudinal direction of the underframe; a support 7 that fits into the traveling body 5 and moves in the lateral direction of the underframe; It consists of a cutter unit 6.

As shown in FIGS. 3 and 4, the underframe 4 has a rectangular shape when viewed from above, and has flexible feed rollers 8 on both sides of the short side, and side frame bars 9a on both sides of the long side. , 9b, and these side frame bars 9a, 9
b also serves as a rail on which the traveling body 5 is placed. On the front side of the side frame bar 9a, parallel rack teeth 10 are attached with the teeth facing upward.

The traveling body 5 rides on the side frame beams 9a and 9b of the underframe and is movable in the longitudinal direction of the underframe 4. The lower surface of the traveling body 5 is provided with bearings 11a and 11b that fit into the side frame crosspieces 9a and 9b of the underframe.

A support shaft 12 is loosely fitted onto the front side of the traveling body 5, and a gear 13 that meshes with the rack teeth 10 is attached.A rotating handle 14 is attached to the gear 13.

The support shaft 12 has a screw thread 15 formed on most of its rear end as shown in FIG. 4, and its round shaft portion on its front end is supported by a bearing 16 on the traveling body 5. The rear end of the support shaft 12 is fitted into a bearing 18 in a female threaded hole 17 fixed to the support body 7, and a handle 19 is fixed to the front end of the support shaft 12 protruding from the gear 13.

The support body 7 is slidable in the lateral direction of the underframe 4 on rails 21 formed on the base plate 20 of the traveling body 5, and supports the cutter unit 6 at the rear end of the support body 7. The pillar 22 is erected.
Further, a scale plate for the notch feed amount is attached to the base plate portion of the support body 7, but this is not shown.

In FIG. 2, reference numeral 23 denotes a base frame of the cutter unit 6, to which a motor 24 is fixed with bolts 25, and a vertical rod-shaped cutter 26 is supported by a bearing 27 on the motor 24. This cutter 26 is rotated by the drive of the motor 24. Note that 28 is a cutter driving belt.

A female screw bearing 29 is provided on the side at the upper end of the column 22 of the support body 7, and the upper round shaft portion of the screw shaft 30 is supported by this. The arm 31 is the support 22
On the other hand, it is connected by dovetail and dovetail grooves so that it can slide up and down.

A handle 32 is attached to the upper end of the screw shaft 30.

In addition, in FIG. 3, 33 indicates a power cord of the motor, 34 indicates a relay outlet, and in FIG. 4, 35 indicates a switch.

In addition, at both ends of the side frame bars 9a and 9b of the underframe 4,
As shown in FIGS. 1 and 3, there is a vertical hole 37a through which one of the nail parts 36a of the holder 3a passes from above, and a horizontal hole 37b through which one of the nail parts 36b of the holder 3b passes.
The front and rear horizontal holes 37b of the side frame beam 9a or 9b are respectively provided on the axis of the side frame beam.

The wood processing machine 2 of this embodiment has the above-described structure.Next, a processing operation for forming a notch recess using this wood processing machine 2 will be explained.

As shown in FIG. 5, the natural wood 1 to be processed is first processed into parallel surfaces by sawing both opposing surfaces, and then one of the sawn surfaces and the surface where the notch recess 39 is to be formed are respectively cut. Insert axial black lines 38a and 38b parallel to the axis of the wood. Then, both ends of the wood 1 are fixed to sleepers (not shown) by staking or the like so that the surface on which the cutout recess 39 is to be formed faces sideways.

Next, the wood processing machine 2 is placed on the top surface of the wood 1, and the underframe 4
It is placed so that its longitudinal direction is parallel to the black line 38a. This can be done by aligning the scale 40 attached to the center of the roller 8 with the ink line 38a, as shown in FIG.

After placing the wood processing machine 2 in this way, the underframe 4
is fixed to the timber 1 with the glazings 3a and 3b, and then the front handle 14 is operated to move the traveling body 5 to the left and right, and the display scale 44 of the observation window 43 on the top surface of the traveling body 5 is set to the notch recess formation position. Match. This operation can be performed by aligning the target scale in the lateral feed scale 41 of the gear 13 with the indicator 42.

In this state, drive the motor 24 to rotate the cutter 26, operate the screw shaft handle 19 on the front, and move the support 7 so that the cutter 26 is in the notched recess 39.
lower it until it reaches the bottom of the recess. Next, the handle 14 is operated to move the cutter 26 left and right by the width of the cutout recess 39. As a result, the cutter 26 cuts into the wood 1 and the cutout recess 39
is formed.

Note that when the vertical width of the cutout recess 39 is larger than the length of the cutter 26, after processing the upper half of the cutout recess, the position of the cutter 26 is shifted and the lower half is processed. In FIG. 2, reference numeral 45 indicates handles that stand up on both sides of the underframe 4.

〔effect〕

The wood processing machine of this invention has the above structure and has the following effects.

(1) Since the cutter can be accurately positioned and processed by the feed mechanism, the flatness, depth, and width of the bottom of the notch can be formed with high accuracy. In particular, since the flatness of the bottom of the recess can be formed with high precision, it is possible to stand the bundle column vertically at an accurate position relative to the beam (wood).

(2) The notches at the front and rear ends of the notch recess are formed into a uniform R shape by the radius of the cutter, so
When a bundle post is dug into the notch recess, the gap formed between the notch recess and the base of the bundle post becomes uniform and orderly, resulting in a good finished appearance.

(3) Since even curved wood can be machined following the center ink line, notch recesses for butt fitting or cross fitting in other pieces of wood can be machined with high precision.

(4) Since it is equipped with a cutter and a feed mechanism for positioning, no skill is required for the work, and there is no risk of injury that occurs in conventional manual machining or machining with other power tools.

(5) Since it can be easily attached to wood, it can be easily processed on site, and if the cutter unit can be separated, each separated unit can be made smaller and lighter, making it easier to carry and handle. I can do it.

[Brief explanation of the drawing]

FIG. 1 is a front view of an example of a portable wood processing machine according to the present invention in a usage state, FIG. 2 is a right side view of the same, FIG. 3 is a plan view of the same, and FIG. 4 is a partially cutaway right side view of the same. FIG. 5 is an explanatory perspective view of only the wood and cutter in the processing process, and FIG. 6 is a perspective view of the wood in the conventional processing process. 2...Wood processing machine, 4...Underframe, 5...Traveling body, 6...Cutter unit, 7...Cutter unit support, 8...Roller, 9a, 9b...
Long side frame crosspiece, 10...Rack teeth, 11a, 11b
... Bearing, 12 ... Gear support shaft, 13 ... Gear, 1
4...Gear handle, 15...Threaded thread of spindle 12, 16...Spin shaft bearing, 18...Femally threaded bearing, 1
9... Handle of spindle 12, 22... Pillar of cutter unit support 7, 23... Base frame of cutter unit 6, 24... Motor, 25... Bolt, 26... Cutter, 27... Bearing, 28...
Drive belt, 30...screw shaft, 32...handle, 37a...vertical hole for passing through, 37b...
Horizontal hole for passing through, 1... Natural wood, 3a, 3
b...Scatter, 38a, 38b...Black line, 39
...notch recess.

Claims (1)

[Claims for Utility Model Registration] (1) A rectangular underframe that is provided with longitudinally freely feeding rollers on both sides of the short side, and a rectangular underframe that moves in the longitudinal direction of the underframe by the operation of a feeding mechanism that rides on the underframe. A cutter unit support body that fits into the traveling body and moves in the lateral direction of the underframe by the operation of the feed mechanism, and a vertical rod-shaped cutter that is supported by the support body and moves up and down by the operation of the feed mechanism. The cutter is rotated by the drive of a motor and has a blade part extending the entire length on the circumferential surface, and holes are formed in each of the four corners of the underframe through which one of the nail parts of the scraper is inserted. wood processing machine. (2) The portable wood processing machine according to claim 1, wherein the cutter unit is removably fitted to the support.