JP4936566B2 - Tree branch leaf shredder - Google Patents

Description

  The present invention relates to a simple and small tree branch and shredder capable of shredding tree branches and leaves. Tree branches and leaves include pruned branches and leaves, felled trees, cut grass, and cut grass.

  Tree branches and leaves generated by pruning garden trees and hedges in homes and parks cannot be incinerated in consideration of global warming, and can be fermented and decomposed by microorganisms as compost and humus, or combustible. In order to collect trash as trash, it must be shredded with a tool such as a scissors, sickle, saw, etc. to a size that can be collected in a designated trash bag.

  In addition to the shredder, the tree branch and leaf shredder has been disclosed under the names of a shredder and a pulverizer, and functions as an introduction part, shredding part and discharge part are separated. As the introduction portion, one using a hopper (see Patent Document 1) is known. As the shredding part, for example, many are known which use a rotary blade to automatically shred branches and leaves into a chip shape, and cut by rotating a pair of cutters at high speed (Patent Document 2). And a plurality of cutters attached to the same rotating shaft and adjusting the tip angle of the cutters to improve the efficiency of shredding (see Patent Document 3). Furthermore, in order to perform the shredding of trees with certainty, there is a method using a plurality of shredding methods at the same time instead of shredding once (see Patent Document 4). As a function of the discharge unit, a method of discharging a chopped chip with a blower (see Patent Document 5) is known.

Japanese Patent Laid-Open No. 9-123119 JP-A-8-025315 JP-A-8-276408 JP-A-9-123124 JP 2005-739 A

  However, tree branches and leaves generated by pruning garden trees and hedges in homes and parks are not only hard, but also soft ones such as vine-like stems and light ones such as leaves. In some cases, the chopped portion may not reach the shredded portion due to the occurrence of catching or blowing off by the wind pressure due to the rotation of the cutter. Furthermore, the problem was that the vines that were not shredded were entangled with the rotating shaft, causing machine failure.

  In addition, when a single cutter is damaged in an apparatus using a plurality of cutters, in the case of a rotating cutting edge type, the rotating shaft is damaged due to scattering of cutter fragments due to centrifugal force and unbalance of the rotating plate. There was a risk of doing.

  Furthermore, in the case of a rotary cutting edge type, in the case of a tree branch and leaf that has not been sufficiently dried, if the chip adheres to the inner wall and accumulates, it is very difficult to maintain. Further, in the case of a complicated structure such as a multi-order shredding method, a chip is caught in a narrow gap and uncut by a cutter is generated, so that the inside of the machine must be periodically cleaned.

When the shredded chip is discharged by a blower or the like, dust is generated, so that the worker is uncomfortable in working environment such as wearing a mask.

  In addition, complicated structures such as multi-stage shredding methods are special tools, and not only are the costs involved in manufacturing the device including special parts related to the cutting mechanism and chip ejection mechanism, but also the size of the device increases, Use as a machine is difficult.

  In view of the above situation, an object of the present invention is to provide a simple and small-sized tree branch and leaf shredding machine capable of shredding tree branches and leaves generated by pruning garden trees and hedges in homes and parks. .

In order to solve the above-described problems, the tree branch and leaf shredder of the present invention has the following configuration.
A shearing action by an introduction part for feeding shredded objects of tree branches and leaves to the inside of the apparatus, and a shredder sent from the introducing part by a reciprocating linear motion and a cutter fixed to the main body It is a small tree branch and leaf shredder equipped with a shredder for cutting and a discharger for accumulating and collecting chips shredded in the apparatus, the introduction part being a guide plate and two introduction rotations In order to make it easier for the body to guide tree branches and leaves, a separation pillar that separates the shredded object in two directions below is configured to reduce the burden on the cutting force of the cutter, and the shredded portion is shredded A cylindrical cam is provided in addition to a cutter fixed to the main body for cutting a cut piece by a shearing action and a cutter that performs a reciprocating linear motion, and the rotary shaft of the cylindrical cam is provided by rotating the cylindrical cam with a motor or the like. For reciprocating linear motion in a direction parallel to Configured to conversion, the discharge unit is configured such that the device body by a device main body bottom of the cart and recovering the chips is easily moved by the pull-out collection box.

  In addition, the introduction part is composed of a guide plate, two introduction rotary bodies and a separation column, and the guide plate has a curve that allows the shredded object to easily enter, so that the shredded object can be efficiently used. Concave portions are provided at regular intervals so that it can be easily guided, and the leading end of the arm portion of the introduction rotating body is provided with a constant angle in order to ensure the object to be shredded. In order to prevent clogging of objects to be shredded, one machine is free to rotate and the other machine is linked to the cylindrical cam via a V-belt. It is desirable that the distance between the rotation axes of the two introduction rotors can be adjusted according to the size of the branches and leaves.

  Furthermore, it is a mechanism that shreds the object by shearing with a cutter that is fixed to the machine body and a cutter that reciprocates linearly with the rotational movement of the cylindrical cam, and the shape of the fixed cutter is A folding blade is provided at the end, and the shredded object pushed by the cutter performing reciprocating linear motion is secured to the folding blade, thereby enabling reliable shredding of the shredded object.

According to the main configuration of the present invention, the following effects can be expected.
1. It is possible to provide a simple and small-sized tree branch and leaf shredding machine capable of shredding shredded objects of tree branches and leaves generated by pruning garden trees and fences in homes and parks.
2. Since the introduction part is not a hopper type, and the object to be shredded is forcibly sent out by the introduction rotating body, it is not caught before reaching the shredding part.
3. Since the object to be cut fed to the introduction rotating body is appropriately separated by the separation column, the burden on the cutter during shearing is reduced.
4). Since it is not a rotary cutting edge type, a soft thing or a vine-like thing does not get entangled with a rotating shaft etc.
5). Since the number of cutters used is small, maintenance such as cutter replacement is easy.
6). Tree branches and leaves that have passed through the shredded portion come into contact with the outer peripheral surface of the cylindrical cam, but since there are no obstacles such as protrusions, they fall into the collection box by natural fall.
7). Since the inside of the apparatus has a simple structure, maintenance such as cleaning and repair is easy.
8). The drawer-type collection box can be put into the garbage collection bag without getting your hands dirty.
9. Since the carriage is attached to the device body, it is easy to move.

  According to the configuration in which two introduction rotary bodies are interlocked and the distance between the axes can be adjusted, the object to be shredded can be efficiently fed to the shredder, and of the two introduction rotary bodies, 1 Since the machine is interlocked with the cylindrical cam via the V-belt, it can be driven by a single motor, and it is possible to adjust various distances by adjusting the distance between the rotation axes of the two introduction rotors. It can handle the size of cut pieces.

  By making the end of the fixed cutter into a folded shape, the shredded object is moved along the fixed cutter by being pushed by the reciprocating linear motion cutter, but finally secured by the folded blade. , It is possible to reliably cut the object to be shredded.

It is a front view of the tree branch and leaf shredder according to the present invention. It is a side view of the tree branch and leaf shredder according to the present invention. (A) It is the side of the free introduction rotary body and drive introduction rotary body of the tree branch leaf shredder by this invention. (B) It is explanatory drawing of each arm of the free introduction rotary body and drive introduction rotary body of the tree branch leaf shredder by this invention. It is a side view of the reciprocating cutter part of the tree branch chopping machine by this invention. (A) It is a side view of the fixed cutter part of the tree branch leaf shredder by this invention. (B) It is explanatory drawing regarding the cutting process of the tree branch and leaf by the fixed cutter and reciprocating cutter of the tree branch and leaf shredder by this invention. (C) It is explanatory drawing near a folding | turning blade in the cutting process of a tree branch and leaf by the fixed cutter and reciprocating cutter of the tree branch and leaf shredder by this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings showing examples.
In FIG. 1, reference numeral 1 denotes a simple and small-sized tree branch and shredder capable of shredding tree branches and leaves. The tree branch and shredder 1 is a device for feeding shredded objects of tree branches and leaves W. Introducing section for feeding inside, shredding section for cutting a shredded object sent out from the introducing section by a reciprocating cutter for reciprocating linear motion and a shearing action by a fixed cutter fixed to the body, and apparatus And a discharge unit for collecting and collecting chips shredded therein.

  First, when the tree leaves W are introduced from the direction A, they are guided along the curve of the guide plate 10 and the concave portion 1a in the direction B of the introduction portion of the main body 1, and the free introduction rotator 2 and the drive introduction rotator 3 are guided. It is a mechanism to invade between. At this time, the introduction portion cover 11 can be freely opened and closed by a sliding method according to the size of the tree branches and leaves, and the drive introduction rotor 3 can be moved along the inter-rotor axis distance adjustment groove 4.

  As shown in FIG. 2, the drive-introducing rotator 3 is transmitted from the cylindrical cam V-pulley 91 directly receiving the rotational force from the drive motor M to the drive-introducing rotator V-pulley 32 via the V-belt V. As shown in FIG. 3 (a), the free introduction rotator 2 is connected to the free introduction rotator body 20 via the tree branches and leaves W that have been introduced. The arm 21 embedded with a rotary screw type is arranged at equal intervals with a spacer 22, and the center of the free introduction rotary body 20 and the spacer 22 is penetrated by the free introduction rotary body rotation shaft 23. They have a structure in which they freely rotate around the free introduction rotating body rotating shaft 23. This makes it possible to prevent entanglement and catching of tree branches and leaves W in the introduction part. If the rotational speed of the drive-introducing rotator is to be set to a desired rotational speed, the rotational speed can be changed by installing a transmission gear device in the drive-introducing rotator V pulley 32.

  Depending on the strength and hardness of the tree branches and leaves W, the free-introduced rotating body arm 21 is made of stainless steel, light alloy, elastic body, hard rubber, etc. Hard rubber is effective. Furthermore, as for the shape of the arm 21, in order to reliably send out the tree branches and leaves W, it is preferable to bend the tip of the arm so that the inclination angle θ is not a straight line but an inclination angle θ as shown in FIG. It is possible to secure the branches and leaves W. As for the drive-introducing rotator 3, the drive-introducing rotator arm 31 is the same as the case of the free introduction rotator arm 21.

  The tree branches and leaves W sent out by the free introduction rotary body 2 and the drive introduction rotary body 3 are separated into half by the separation pillar 5 having a triangular cross section before entering the shredded portion, and as a result, the shredding amount is reduced. This reduces the burden on the cutter and enables smooth cutting.

  As shown in FIGS. 1 and 2, the tree branches and leaves W that have passed through the introduction part are shredded by the relative movement of the reciprocating cutter part 6 and the fixed cutter part 7. The reciprocating cutter unit 6 corresponding to the follower node is a mechanism for chopping by performing a reciprocating linear motion in a direction parallel to the rotation axis of the cylindrical cam 9.

  On the outer peripheral surface of the cylindrical cam 9, a groove is formed by using an NC machine tool such as a machining center capable of A-axis control around the X-axis as a machine tool, and a T-groove milling tool as a tool, thereby providing a cam groove 90.

  The reciprocating linear motion of the reciprocating cutter unit 6 is performed in a state sandwiched between the cutter guide plate 51 and the linear motion bearing 8 installed at the lower part of the separation column 5. It is possible to repeat a stable movement without ascending.

  As shown in FIG. 4, the reciprocating cutter unit 6 is provided with a reciprocating cutter 60 having a cutting edge in the front-rear direction for reciprocating linear movement on the cutter stage 61 by a hexagon bolt 6 a, and reciprocating below the cutter stage 61. A cutter clearance adjustment plate 62 for adjusting the gap between the cutter 60 and the fixed cutter 70 shown in FIG. 5 and nylon or polypropylene made to prevent entry of fine chips into the roller shaft 68 and the cam groove 90 of the cylindrical cam 9. A brush pedestal 63 in which the brush 65 is implanted, and a roller rotating shaft 66 for achieving a lubricous slalom movement along the cam groove 90 of the cylindrical cam 9 are respectively installed on the roller rotating shaft 66. The roller column 67 is provided with a roller shaft 68 and rollers 69 at both ends thereof. The roller 69 is embedded in the cam groove 90 of the cylindrical cam 9 as the tip of the driven node, and freely rotates about the roller shaft 68. The roller column 67 that supports the roller shaft 68 is centered on the roller rotation shaft 66. It is a mechanism that can rotate freely. Further, a thin rubber plate 64 is provided on the side surface of the cutter stage 61 so that a fine chip or the like does not enter the cam groove 90 of the cylindrical cam 9.

  As shown in FIG. 5A, the fixed cutter unit 7 is composed of a set of two fixed cutters 70, which are fixed with hexagon bolts 7a, and the fixed cutter 70 is as shown in FIG. 5B. The end portion is provided with a folding blade E. Then, when the tree branches and leaves W pushed by the operating cutter 60 that performs the reciprocating linear motion move in the C direction along the fixed cutter 70, and thereafter, near the end of the fixed cutter 70, as shown in FIG. Although the tree branches and leaves W move to escape in the direction D, the tree branches and leaves W finally reach the turning edge E, so that the tree branches and leaves W can be reliably shredded.

  The chip of the tree branch leaf W that has passed through the shredded portion comes into contact with the outer peripheral surface of the cylindrical cam 9 on the way, but since there is no obstacle such as a projection, it is directly deposited in the collection box 120 by natural fall, and after shredding Since the chip or the like that collides with the side surface of the main body 100 has a taper at the lower portion of the main body 100, it smoothly falls into the collection box 120.

  The collection box 120 is a drawer type, and by pulling out a handle welded to the collection box 120, it is possible to easily take out chips and the like and put them into a designated garbage bag or the like to collect them as combustible garbage.

  The main body 100 can be moved by a carriage 130 having four wheels 131, and is effective for use in parks and homes because of its small turning, and is easy to store because of a small shredder.

The small tree branch and leaf shredder 1 of the present invention can be used as follows.
1. It can be used not only in parks and homes, but also as a small tree branch shredder for tree branches and leaves that are generated when pruning garden trees and fences in the premises of companies and schools, and tree planting along roads.
2. Pruning robots are used to handle branches of cedars, bushes, and other tall trees, but they fall as they are after cutting the leaves and leaves, which is very dangerous for workers, and palm trees planted along the road In this case, traffic regulation must be laid to avoid the danger of falling, but by attaching the tree branching and shredding machine to the debranching machine, the tree branching and shredding machine can be shredded without cutting off the branches and leaves. It is possible to automatically collect the branches and leaves by raising the branch to the place of the branches and positioning and setting the branches and leaves hanging downward in the introduction part.

DESCRIPTION OF SYMBOLS 1 Tree branch and leaf shredder 2 Free introduction rotary body 3 Drive introduction rotary body 4 Rotating body axis distance adjustment groove 5 Separation pillar 6 Reciprocating cutter part 7 Fixed cutter part 8 Linear motion bearing 9 Cylindrical cam 10 Guide plate 11 Introduction part Cover 1a Guide plate recess 20 Free introduction rotator body 21 Free introduction rotator arm 22 Spacer 23 Free introduction rotator rotation shaft 30 Drive introduction rotator body 31 Drive introduction rotator arm 32 Drive introduction rotator V pulley 51 Cutter Guide plate 60 Reciprocating cutter 61 Cutter stage 62 Cutter clearance adjusting plate 63 Brush base 64 Rubber plate 65 Brush 66 Roller rotating shaft 67 Roller column 68 Roller shaft 69 Roller 6a Reciprocating cutter presser bolt 70 Fixed cutter 7a Fixed cutter presser bolt 91 V pulley 100 for cylindrical cam Main body 120 Collection box 130 Bogie 131 Wheel E Folding blade M Drive motor W Tree branch leaf θ Tilt angle

Claims (3)

An introduction part for feeding tree branches and leaves, a shredding part for cutting the tree branches and leaves sent from the introduction part by a reciprocating cutter that reciprocates linearly and a fixed fixed cutter, and a shredding part A tree branch and leaf shredder comprising a discharge unit for collecting cut tree branches and leaves,
The introduction section includes two introduction rotators, a guide plate provided above the introduction rotator for guiding tree branches and leaves, and a separation pillar provided below the introduction rotator and dividing the tree branches and leaves in two directions. Become
In addition to the fixed cutter and the reciprocating cutter, the shredded portion further includes a cylindrical cam, a motor, and power transmission means, and the power transmission means gives a rotational motion to the cylindrical cam by the motor. To transmit power so that the reciprocating cutter performs a reciprocating linear motion in a direction parallel to the rotation axis of the cylindrical cam,
The said discharge part has a drawer-type collection | recovery box and a trolley | bogie. The tree branch and leaf shredder characterized by the above-mentioned. A tree branch and leaf shredder according to claim 1,
The guide plate has a curved surface shape with recesses provided at a predetermined interval;
Of the two introduction rotators, one is a free introduction rotator in a state where the rotation is free, and the other one is a drive introduction rotator interlocked with the cylindrical cam via a V-belt,
An inter-axis distance adjusting means for adjusting the inter-axis distance between the rotation axes of the two introduction rotary bodies;
On the surface of the free introduction rotator, a number of free introduction rotator arms bent at a fixed angle at the tip are attached,
On the surface of the drive introducing rotator, a large number of arms for drive introducing rotators with their tips bent at a certain angle are attached,
A tree branch-and-leaf shredder characterized in that the drive-introducing rotator arm and the free-introducing rotator arm sandwich and feed the tree branches and leaves into the shredder. A tree branch and leaf shredder according to claim 1 or 2,
The fixed cutter has a folding blade at its end,
A tree branch and leaf shredder characterized in that a shredded object can be surely shredded by securing the shredded object pushed by the reciprocating cutter to the turning blade.

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