JPS60500330A - A device for splitting wood, especially firewood - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] A device for splitting wood, especially firewood This invention relates to a new device, which is used for splitting firewood, wood chips, etc.

It is not known that when a fallen tree falls, the tree is ground with a trunk cutter in order to obtain firewood for use in heating. It is. However, these types of firewood can be put directly into the chimney furnace (generally they are bulky). Too much. For this reason, the firewood has to be laid aside again, and this operation is generally a manual labor. Strengthen. In any case, the known methods (use of a hammer, metal wedge or ax) are must be located far from the chimney where it will be used. In particular, in practice these processes are carried out all over town. People are discouraged from doing things inside their apartments.

This invention relates to a novel device that can be purchased and used on the spot, reducing manual labor to an apartment. It has been changed to a simple operation that can be performed even on a desktop.

The device according to the invention is a lightweight portable device controlled by an electric motor, one rotating cone with a helical tip pointing downward; - the geometrical shape of this cone; a fixed wedge with a pointed lower side that is inserted so as to coincide with the rotating shaft (C); A spiral cone whose tip is directed downward, interlocking with the upper part expanded by the fixed wedge. It is characterized by having a portable base that supports the axis of rotation of the body.

According to another feature of the invention, the lower edge of the wedge is arranged downwardly with the geometrical axis of the spiral cone. forming an acute angle that widens toward It terminates in the middle of the spiral plane of the body.

According to another feature of the invention, the inner end of the side of the fixing wedge is the inner tip of the helical cone. extends downwards further away than Make it so.

According to another feature of the invention, the base includes a cover and a flange portion; Therefore, the entire device takes on the appearance of a portable electrical appliance.

According to another feature of the invention, the case of the device has an electric speed reducer for rotating the helical cone. Equipped with utensils.

According to another feature of the invention, the inner part of the fixed base rj has a peripheral edge of a rotating cone. It has a stopper for suppressing and fixing located at the part. The tangential velocity of the cone in this region is It points away from the fixed wedge. That is, when the spiral cone rotates to the right, In this case, the fixed pressing force is placed on the left side and the device is therefore moved from above to below. When the user looks towards the user, the wedge will be located at the rear.

The accompanying drawings are illustrative and do not limit the scope of the invention. You can better understand the characteristics of

FIG. 1 is a partially cutaway side view of the device of the invention.

FIG. 2 is a perspective view.

FIG. 3 shows the fixing wedge separately.

FIG. 7 shows the lateral pressure stop separately.

Figures S to 7 are side views showing the operation of the device for starting to split firewood; .

Figures S and 9 are rear views showing the end of the operation, and the lateral suppression stopper is It actually separates the firewood, even if it is a fibrous wood.

The illustrated device comprises a base/, which base/ has a cover unit with an operating handle 3. It is equipped. Additionally, this handle has a push button for closing an electrical switch (not shown). It is desirable to provide a button q.

The electric reducer is fixed on the base inside the cover unit, and the worm gear is and through the worm wheel 7 the reducer is pitched around the vertical geometrical axis. Rotate a rotating cone with a large spiral. The tip of the rotating cone 9 is pointing downward. It's suitable.

A metal wedge // is fixed under the base /, and this wedge is attached to the lower part of the base from the bottom to the top. It has a straight, pointed side facing towards the cone. at the rear of the device At the rear end of this edge located, edge /2 preferably terminates in a tail /3 with rounded corners. End. Conversely, at the front edge of the side, this side /2 is located in the middle of the cone, e.g. It terminates at the tip /'j which is less than or equal to the length Z.

If the length is taken in the direction parallel to the direction of geometry @g, then the bottom of the edge /, 2 of the wedge // The side tail /J is placed at a level is located below the tip /θ of the cone.

According to FIGS. 3 and 9, the wedge l/ has the general shape of an approximately tetrahedron, and the rear face/wedge has the general shape of a tetrahedron. A rotating cone at the top? It forms an arcuate triangle that is wider than the The tip shape has an apex angle smaller than the angle of the tip 10 of the rotating cone.

According to another feature of the invention, the rotating cone 7 is provided with the arrow "-to the right" in FIG. /If you turn the clock hand in a short direction as shown by B, temporary sj7 T-.

ing. In this case, a pressure stopper 17 is fixed to the left side under the base. this The shape of the stopper is as shown in Figures 1 and 7 (i.e., the lower wall surface/g is gently sloped from the periphery of the rotating cone to the outer edge of the base. child Because of the arrangement (Fig. 2, Fig. 2, Fig. 9), the left side of the base l is Half of the chopped firewood / 9 is supported by the stopper / 7, and the shredded firewood The other half 20 of 2/ falls off upwards on the outside of the wedge 15.

Next, the operation will be explained. The problem is splitting firewood 2/.

For this reason, the user holding the device by the handle 3 should place one piece of firewood on the ground (Fig. 6). Pry the device before 2/. For this installation, place the fixed wedge at the end of the firewood 2/. Place it on the upper side, and the tip of the rotating cone 9 partially bites into the upper part of 2/ (Fig. 6). Do it like this. Since the cone body 7 is rotationally driven by an electric speed reducer S, the water is The cone 9 penetrates into the wood while preventing the wood from rotating. The cone 9 As it rotates, it penetrates into the wood one after another, and you can see that it becomes as follows. That is, On the other hand, the cone wa forms cracks 2 (Fig. 7) along the longitudinal direction of the firewood. Divide On the other hand, the entire device swings as the edge of the wedge // shows as indicated by arrow 2J in Figure 7. Form a fulcrum.

If this operation is performed, the lower part of stopper /7 will touch one of the halves of firewood 2/ (/9 in Fig. g). Continue until it makes contact with the top of the left half (as shown in Figure 1). After this time, wood The spiral cone 9g that continues to penetrate inside the right half of the firewood, IO upwards (Fig. 7, arrow 2) D) Trying to pull it out. This right half goes along the straight wall VC that opens upwards. Nagara wedge//especially the rear wall/,! □Escape from −. On the other hand, the left half of firewood /9 is like this It remains held in stopper/7 during operation. of two halves/91.20 Between the side parts, use scissors to eliminate the fibrous material remaining between this flooded D half piece/9.20. Therefore, a separation operation is required. That is, when the operation is completed, λ halves of firewood / 91.20 is firewood! Even if / is extremely fibrous, such as poplar, they are completely different from each other. It separates and lies on the ground.

This operation of splitting firewood 2/ can be performed easily and skillfully, and it requires a lot of effort from the user. It turns out that this can be done without much effort.

In particular, this 1.V. work was produced in the house V, in the apartment, in front of the chimney furnace in W. Can do 2) and.

In the embodiment '71't in the drawing, the lower edge /2 of the fixing wedge // has the geometry of the spiral cone. -tH is arranged in the same plane as the academic axis g, forming an acute angle 2S that expands downward. It was assumed that

FIG. 70 and FIG. 1/show variations in the external shape of the fixed wedge // and its blade. child In the case of , the front tip /q of the hypotenuse /2 is oriented parallel to the axis g of the rotating cone 9. It is replaced by a corner part uB which forms a straight edged side part 27. Side part 27 is connected to another straight side 2g at its top. This side 2g is approximately perpendicular to the axis 9. cone according to the direction? Extend nearby.

The operation of this variant is similar to that described above, with vertical The side λ7 allows the whole device to be lowered vertically j~, the two halves /91.20 They differ in that they are opened and divided one after another. That is, by this The shaking shown by the arrow 23 in FIG. 7 can be prevented.

In Figures 7.2 and 73, the fixed wedge // is the upper hypotenuse part /2 as described above. It has a blade with It hangs downward by part /7 and terminates in a forwardly projecting blade part 29. I come to do it.

When in use, this side portion 29 is supported by the end cut surface 3o of the firewood 2/, and is actually shaken. It is possible to lower the dangerous device and allow the cones 9 to enter @2/ one after another. I can do it. The entire length of the wedge // and therefore the cup with a blade longer than the length of the rotating cone 9. It forms part of the

According to this variant, long logs (e.g. longer than /meter) can be easily split. Become. In each case, the rotary cone 9 is inserted at one end as previously described, and then Insert the blade //, /7 into the crack formed on the side of the wood to create a new Then insert the rotating cone 9 into the same crack at the desired location and run it along the entire length of the trunk. continue.

1 Nittt! l Two power rJ2 ′°□−) International survey – Pihokichi

Claims (1)

[Claims] l It has a portable and lightweight shape, and can be used to split wood pieces, firewood, etc. controlled by an electric motor. In Rudame's device, - one rotating circle with the tip (10) pointing downward and cutting the spiral; Cone <q> and - a pointed bottom inserted so as to coincide with the geometric axis of rotation (g) of this cone (9); a fixing wedge (//) having sides (/2); - widened by said fixing wedge (//); The rotation axis of the spiral cone (q) with the tip (10) facing downward is a portable base (1) for supporting; A device for splitting wood, characterized by comprising: 2. In the device according to claim 1, the lower side (/2) of the wedge is a spiral cone. (9) and the geometric axis Cg), forming an acute angle part (25) that expands downward, and The tip (/ll) of the edge (/2) of the wedge (//) closest to the cone (9) is a cone. A device for splitting wood, characterized in that it terminates in the middle of the helical plane of the body. 3. In the device according to claim 2, the side (/, 2) of the fixed wedge (//) The lower end (/j) is separated by a distance in the direction parallel to the geometric axis (g) of the cone (9). so that it expands downward as it moves away from the lower end (10) of the spiral cone. A device for splitting wood characterized by: ≠ In the device according to any of the above claims, the base (1) is provided with a cover ( 2) and a handle (3), making the entire installation look like a portable electrical device. A device for splitting wood characterized by: ! In any of the above claims (/'C), the device cover ( 2) is equipped with an electric reducer (, 1) that rotationally drives the spiral cone (9). A device for splitting wood. B. In the device described in any of the above claims, the fixed base (1) is a conical In the region where the tangential velocity of the body is directed away from the fixed wedge (//), the rotating cone ( A press stopper (/7) placed on the periphery of the When the wedge (//) is placed backwards when looking at the position from top to bottom, the spiral cone (9) If it turns to the right, the suppression fixed stopper (/7) should be placed on the left. A device for splitting wood, characterized by: 7 In the device according to any of the preceding claims, the lower side of the fixing wedge (//) The hypotenuse (/, 2) is the straight side (27) located parallel to the axis of the cone (*(9)). The end of the cone (9) is approximately perpendicular to the axis (g) of the cone (9) on the side (27) of the cone. Splitting wood characterized by having a straight edge (2g) terminating at A useless device. K. In the device according to any of the preceding claims, the fixing wedge (//) The cutter side (29) has a protruding shape and is slightly inclined downwardly on the rear side to terminate at the cutter side (29). Equipped with a blade with an edge, the upper hypotenuse of this blade is a straight cutter. A method for splitting wood that is characterized by its edges extending downward. equipment.