JPS5814707A - Barker - 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 This invention relates to a device for removing bark from logs. In order to make logs for use in posts, supports, log cabin logs or valves, it is necessary to remove the bark from the IA side of the log. Various devices have been proposed for working with 0. For example, US Patent No. 2 to Prentice', filed June 22, 1954,
No. 681,670 describes a hood that is attached to a shaft facing toward the operator of the log whose bark is to be peeled. A log bark stripping device having a rotary cutter ped is shown in Fig. 1.7.A pair of shoes are attached to each end of the rotary cutter head and are moved to finely adjust the cutting depth of the cutter head. - The cutter head is rotated by a power device, and the baraki is rotated and moved in the longitudinal direction so that all the bark can be removed.October 1964
Wallman (Wal l + nan) on the 27th of May.
U.S. Pat. , and the cutting radius increases as the cutter is drawn out. One object of the present invention is to provide a bark stripping device capable of moving in the longitudinal direction of a log in order to remove bark from the log. .

Another object of this invention is to provide a bark stripping device that can be used to cut flat sections on logs used in the construction of log cabin corners.

Yet another object of the invention is to provide a bark stripping device that uses a cutting surface with teeth that can be removed in a short amount of time and with low effort for repair or replacement.

Yet another object of this invention is to provide a log bark stripping device that uses a cutting surface that is self-cleaning of bark and debris.

Another object of the present invention is to provide a log bark stripping device having a cutting depth adjuster in order to adapt to bark of various thicknesses. has a moving crab unit, which is the prime mover of a chainsaw. The outer frame is connected to a moving crab unit and has an axle which is driven by the moving crab unit via a chain sprocket device.A drum having a helical groove is mounted on the axle and is supported on the outer frame. A chainsaw-shaped chain is mounted in the helical groove with a barb attachment structure to maintain proper chain tension. As the drum rotates, the serrations on the chain contact the bark to be removed and scrape it cleanly off the log. The helical shape of the chain makes the device self-cleaning. A support base from a pair of guide rollers is pivotally attached to the outer frame and maintains a gap between the cutting teeth and the raw wood surface.The guide rollers are machined into a concave shape to match the radius of curvature of the raw wood. This prevents skidding of the peeling machine and provides considerable control over the peeling operation.--One guide roller is located in front of the drum, and the other is located behind the drum, and both guide rollers are mutually adjustable to adjust the drum gap. Yes, in this way the operator can easily adapt to different bark thicknesses.

These and other objects and features of P9r which will become apparent below, are among the details of construction and operation described and claimed in greater detail below, and which are hereby incorporated by reference in their entirety. Referring to the drawings, all 0 and all (-2) indicate similar parts with similar numbers Fi.

Referring now to the drawings, a log bark stripping machine generally designated by the number 0q is shown in detail, employing the principles and ideas of the present invention. Configurable handheld moving crab knit L1
It has 21. The moving crab knit aa is attached to the peeling unit low 1 and the chain sprocket drive part oQ.

The +121 is similar to the one used on chainsaws available as a standard item, and in fact, this device removes the chainsaw's cutting chain and cuts the chain and sprocket drive part. (2) It can be assembled by connecting the peeling unit to the existing moving crab knit 1121 by attaching the peeling unit member having the above.

The peeling unit h has a U-shape, I'b is a moving crab knit (formerly connected to the old main body) and has a main column e with a pair of flanges (capital).
and (1) are attached to both legs of the outer frame U-yen, and serve to hold a pair of @ (Q) and (C), respectively. i
I! The shaft supports (c) and (c) rotatably support the shirt (i), and this shaft is inserted into the opening formed in the outer frame αd inside the 7 lunges 10.
protruding from the outside to the outside]-. The drive sprocket 04 of the chain and sprocket drive unit OQ is attached to the small diameter end of the example shaft and held in place with a nut. A drum (c) is attached to the shaft (-), and it is locked with key 4 so that it rotates with the shaft. The drum (to) has a cutting surface and is used to peel off the bark from the original tree. It is clear that the bark will be peeled off from this by contacting the tree. The drum) rotates in the open direction and pulls the peeling machine (1 (υ) forward along the log and away from the operator, as shown in Figure 6.

Guard 1 is attached to a hole in the outer frame by a threaded member (1) to reduce the amount of bark chips and wood chips thrown from the drum to the operator.The guard is approximately arc-shaped and 〇Drum covering the upper part of 0 o'clock) has a cylindrical outer surface as shown in the figure, and has a fL7t spiral groove 118j formed in it. It may be made concave to match the radius of curvature of the log to be processed. However, with a cylindrical surface as shown, it is possible to create a flat section along the log, such as is used in making log cabins and the like. The actual cutting surface of the drum has a chain-1, and t'1. For white removal, a chainsaw chain has multiple cutting teeth (52), and a chain saw (5 tons) that removes the bark from the log by making contact with the bark of the log.
J) is spiral # so that teeth 5δ protrude outward from the drum.
1 It is attached to the decoy circle. The chain is preferably formed as having a continuous length, with one end of the chain located in the hole Q541 of the tram and threaded bottle 5.
The bottle is held in the foot position by the Q and is screwed into the drum through the chain and into a screw provided in the drum. The chain is then wrapped around the drum in the groove 1I81, the other end of the chain being located in the second hole circle.The elongated fixed rod i0) has a hooked end and this 0 engaged with the end
The rod t60 passes through the drum body ring into a hole (2) with a compression spring 6(i). The spring has a hole (6
The chain 00) rests on the shoulder formed in the groove 10 and pressurizes the washer in contact with the neck by the nut σ0).
8) The tension of the e-chain, which is held in a spring-tensioned state within the chain, can be adjusted by simply pulling it in and out on the nut 6 (υ is the rod 0). The teeth 64 are spaced along the length of the chain (50) so that the teeth 52 are placed at different locations along the surface of the drum as shown in FIG. ) It is preferable to dimension L, so that the teeth abut successively on the bark so as to produce a smooth cutting action, or the teeth are arranged in a row laterally along the surface of the drano. If they were to line up, the tension caused by the rotation of the drum and by the contact of the teeth against the bark would result in abrupt and uneven interlocking, which could be a nuisance to the user of the device.

Needless to say, by using a standard chainsaw chain as the cutting surface of the drum as described above, the user can quickly and easily remove the chain for replacement or sharpening. Replacement chains are readily available as this is a standard manufacturing item. Furthermore, due to the helical position of the chain on the surface of the drum (2), the chain and drum provide self-cleaning of bark and other cuttings. When the drum rotates,
The bark pieces that are cut and remain at the bottom of the drum move laterally due to the action of the chain and are ejected from the device.

In order to maintain an appropriate distance between the drum (B) and the log from which the bark is to be peeled, a pair of guide rollers σ and 0 are mounted on the outer frame to support the drum. The Kiteroller 4 and bolts are mounted directly on the mandrels 4 and 4, respectively.The attachment for each mandrel is bolted to the structure. The mounting structure for the mandrel .sigma.4 has arms (2) and g33 (g33), which have extensive rings at their inner ends.

The rings @4) and -) are mounted on the annular 7 langes) and on the outside of the sliding door, respectively, in such a way that the direction of the guide rollers (74) can be changed by pivoting the mounting structure thereon. To,
The guide rollers σ are supported by a mounting structure having axle support arms (c) and (!lO) with rings (92 and 04) respectively. Rings 04 and (94) are also fitted around the outside of the flanges and the mounting for the kite roller (7) is such that the angular orientation of the structure can be changed.Of course, the ring Q
-ia, (!12) and ■), (94) can be rotated between each other, so it is possible to move them closer or closer together.

This change in the relative position of the rollers changes the distance between the workpieces, i.e. the bark peeled off the logs. This therefore compensates the user for the various thicknesses of the bark. make it possible to

In order to maintain the desired distance for the drum), each ring is provided with a flange (g), -1 (6) and (ICl3) for mounting, respectively. be. The mounting flanges are arranged in pairs on their associated rings and connected by threaded adjustment screws (104) and (106'). Adjustment screw (1
04) The pair of mounting flange t9[i+ and (l(g)) are attached to the boss (10δ) and (1
10). Similarly, the adjustment screw (106
) is mounted on a flange and (102) VCC is rotatably mounted on the boss pair (112) and (1
14,'). When the screws (104) and (106') are rotated, the flanges attached thereto cause the approximation rollers CI4 and C: 14) to move downwards and move the inner V (to the approximation drum) away from the work surface.

On the other hand, the screws (104) and (106) can also be rotated to release the attached flanges and to release the rollers σ4 and (74J) in order to lower the drum (to) onto the processing surface. 01 can be used with a drive as shown in Fig. 1. At this time, the roller @ and the head guide the peeler in the longitudinal direction along the raw wood, and the rotation of the drum supports the movement and peels off. This creates a continuous force that moves the machine away from the operator.The stripper 4 can also be mounted on a track for automatic operation, and the logs can be aligned in diameter for the stripping process.

The foregoing is to be considered as a mere illustration of the origins of the invention. Also, since numerous modifications and changes can be readily made by those skilled in the art, the structure and operation of the invention as illustrated and described herein are merely illustrative. It is not intended to be so limiting as desired; therefore, suitable variations and equivalents may be deemed to fall within the scope of this invention.

[Brief Description of the Drawings] Figure 1 is a perspective view of the log bark peeling machine in operation, Figure 2 is a half-view of the upper part of the log bark peeling machine, and Figure 3 is the cutting line 6 in Figure 2.
...In the plane passing through 6, #can opener vjr side sectional view,
Figure 4 is an exploded view of the log bark peeling machine. 10... Bark peeling device, 12... Power drive device, 1
8... Outer frame, 68... Rotating drum, 44... Guard member, 48... Spiral groove, 50... Chain,
52... Cutting tooth, 56... Chain one end fixing member,
58°゛°hole in drum, 60... hard N rod, 66...
・Spring, 72.74... Guide roller, 80, 82,
88.90...Mounting arm, 104.1 (J8.11
0...Adjustment member 0 Agent: Patent attorney Masatoshi Sato

Claims (1)

[Scope of Claims] (1) A driven rotary drum having a spiral groove on its outer surface; and a slender elongated drum having cutting teeth that are spirally wound around the drum, stably supported by the groove, and spaced apart in the longitudinal direction. The drum is formed therein by a chain, a member for fixing one end of the chain to the drum, a fixing rod having one end connected to the other end of the chain, and a spring. a bark strip extending through the hole and connected between the drum and the other end of the frame to hold the chain in tension contact with the drum; Device. (21. An assembly outer frame having two parallel legs, a drum rotatably attached between the outer frame legs, a plurality of cutting teeth attached to the surface of the drum, and a pair of guide rollers. , a mounting arm connected to the guide roller and pivoted to a leg of the outer frame for mounting the guide roller on both sides of the drum; the cutting teeth are spaced apart along a chain, the chain is helically attached to the surface of the drum, and the drum has a guard member formed on the surface of the drum. a stationary partner having a groove, the chain is stably held within the front Mi'8, and has one end connected to one end of the chain;
The stationary partner passes through an aperture provided in the drum, and a spring connects between the stationary partner and the drum to tension the chain to the drum. (3) a power drive device, a drum drive-coupled to and rotatably attached to the power unit nυ device, and a plurality of teeth arranged in a spiral shape on the surface of the drum, the drum being in contact with the raw wood; A cutting member is attached to the drum for stripping the bark, and a cutting member is attached to a pair of guide rollers f′L and T, which are attached to be spaced apart from each other in the lateral direction with respect to the drum, and are connected to each of the guide rollers. and a gap holding device for maintaining a predetermined gap between the cut shingle material and the log to be bark-peeled, each of the mounting arms being attached to the rotation of the drum. A bark stripping device for stripping bark from logs, the bark stripping device being pivotally mounted and wherein the spacing device has an adjustment member connecting between the mounting arms to hold the mounting arms in a fixed angular orientation. (4) further comprising a helical groove formed on the surface of the drum, the cutting teeth being mounted along the groove, and the cutting member being attached to the front HB to form a chain holding the teeth; The patented invention is characterized in that it has a chain link that connects between parallel teeth, and further has a spring that connects one end of the chain and the drum and holds the chain in tension engagement with the drum. Bark peeling device 0 according to scope 1