JP2009184328A - Chipper and method of releasing biting of grind article in chipper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chipper capable of quickly and safely releasing the clogging and biting of grind articles such as branches and leaves of cut-down trees. <P>SOLUTION: The chipper (C) includes: a feeding port (61) which is set in a dimension that passes only grind articles having a size crushable with a rotary blade (81); a feeding rotary body (73) which is installed in a movable body (70) movable vertically or rotatably and in the downstream side of the feeding port (61) in the forwarding direction of the grind articles, moves in a manner following the shape of the grind articles and coming in contact with them, and is rotatably driven only in the direction feeding the grind articles to a crushing mechanism (8) while holding them by a feedable force; and an operation lever (74) which can separate the feeding rotary body (73) from the grind articles by indirectly operating the movable body (70) by leverage. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a chipper and a method for releasing biting of an object to be crushed in the chipper. More specifically, the present invention relates to a chipper that can quickly and safely release clogging and biting of objects to be crushed, such as branches and leaves of a felled tree, and a method for releasing biting of the object to be crushed in the chipper.

Most of the branches and leaves produced by the cutting of street trees or the thinning of trees in orchards and forests, etc., are crushed by chippers and used as raw materials for secondary products such as building materials in addition to fertilizers. Has been.
There are various types of chippers for performing such work, such as stationary type and traveling type, and they are properly used according to the place where the work is performed.

  The chipper can pulverize objects to be pulverized in various shapes, thicknesses, and sizes, but prevents damage to the rotating blades when the object to be pulverized exceeds the chipper's pulverization capacity. For this reason, the material to be crushed is clogged in the input portion or bites into the feed mechanism. In addition, a structure for releasing clogging and biting of the object to be crushed is provided.

  An example of such a chipper is a “chipper machine” described in Patent Document 1. This chipper machine employs a motor that can rotate in reverse to the motor that drives the pressure roller. For example, several raw timbers are clogged due to material entangled at the supply port during cutting. In this case, the pressure roller is reversed by rotating the drive motor in the reverse direction so that clogging and biting can be easily released.

JP-A-10-235615

However, the chipper machine described in Patent Document 1 has the following problems.
To release clogging or biting of raw materials such as raw wood, stop the rotation of the pressure roller and then reverse the pressure roller. It takes some time.
When releasing, reverse the pressure roller while the object to be crushed is bitten, and the object to be pulverized is suddenly returned in the direction opposite to the feed direction with a relatively strong force to contact surrounding workers. Or the object to be crushed may fall, and there is a problem in safety. For this reason, in releasing work, it is necessary to pay sufficient attention so that the object to be crushed returned in the reverse direction does not come into contact with surrounding workers or fall from the conveyor.

  In particular, a small chipper having a structure in which the pressure roller is reversed like the above chipper machine is difficult to adopt in terms of cost, and therefore the pressure roller rotates only in one direction of feeding. It was. In such a structure, when the object to be crushed bites, the rotation of the pressure roller is stopped, and in some cases, the attachment part of the pressure roller is loosened, and then the object to be pulverized is pulled out in the direction opposite to the feed direction. It took a lot of work to release the bite.

(Object of the present invention)
An object of the present invention is to provide a chipper capable of quickly and safely releasing clogging and biting of objects to be crushed, such as branches and leaves of a felled tree, and a method for releasing biting of objects to be crushed in the chipper. It is.

Means taken by the present invention to solve the above problems are as follows.
The present invention
A supply port that is set to a size that allows only the object to be pulverized to pass through with a rotary blade;
It is provided on the lower side of the supply port in the feed direction of the material to be crushed, moves so as to follow the shape of the material to be crushed, moves with the force that can feed the material to be crushed, and rotates only in the direction to feed it to the grinding mechanism. A driven rotating body to be driven;
Operating means capable of moving the feed rotator directly or indirectly away from the object to be crushed;
It is a chipper.

The present invention
A supply port that is set to a size that allows only the object to be pulverized to pass through with a rotary blade;
It is provided on a movable body that can be moved up and down or rotated, is provided on the lower side of the supply port in the feed direction of the object to be crushed, moves so as to follow the shape of the object to be crushed, and sends the object to be crushed A feed rotator that is driven and rotated only in the direction of feeding to the crushing mechanism while holding it with a possible force;
An operation lever capable of moving the movable body indirectly by the action of the lever to separate the feed rotary body from the object to be crushed;
It is a chipper.

  The chipper according to the present invention preferably has a structure in which the movable body and the operation lever do not contact directly or indirectly during the grinding operation.

The present invention
Pass the object to be crushed through a supply port that is set to pass only the object to be crushed with a rotary blade.
The crushed material is fed to the pulverizing mechanism by a feed rotating body that moves so as to follow the shape of the crushed material, is pressed with a force capable of feeding the crushed material, and is rotated only in the direction of feeding to the pulverizing mechanism. ,
When the object to be crushed that does not pass through the supply port is caught in the supply port, the rotating rotating feed body that is rotating to send the object to be crushed is moved directly or indirectly to release contact with the object to be crushed.
This is a method of releasing the biting of the object to be crushed in the chipper.

The present invention
A hopper for feeding an object to be crushed which is wood or a block of wood, a pulverizing mechanism for pulverizing the object to be pulverized, and a mechanism for pulverizing the object to be pulverized in contact with the object to be pulverized. In an apparatus for crushing wood or lump with a feed mechanism to send to
A chipper having means for separating the feed mechanism from the material to be crushed when the material to be crushed stops moving and cannot be fed by the feed mechanism.

The present invention
A hopper for charging the material to be crushed, a pulverizing mechanism for pulverizing the material to be crushed, and a feed mechanism that is disposed between the hopper and the pulverizing mechanism and that sends the material to be crushed to the pulverizing mechanism in contact with the material to be crushed. In an apparatus for crushing timber or block of wood
When the object to be crushed stopped moving and could not be sent by the feed mechanism, the object to be crushed was removed by pulling the feed mechanism away from the object to be crushed.
A method for removing wood or block of wood.

In the scope of the present specification and claims, the term “pulverization” is used in the sense of making the object to be pulverized, such as crushing, smaller than before processing.
In addition, in the scope of the present specification and claims, the term “wood, wood block” is used to include waste materials derived from various types of wood, such as pruning waste, mill ends.

(Function)
The operation of the chipper according to the present invention will be described. Here, the constituent elements used in the description are assigned in correspondence with the reference numerals given to the respective parts in the embodiments described later. These reference numerals are the same as the reference numerals described in the claims of the claims. Similarly, it is only for the purpose of facilitating understanding of the contents, and the meaning of each component is not limited to the above-described parts.

  Insert the material to be crushed (9) such as branches and leaves cut down from the chipper supply port (61). The object to be crushed (9) that has entered from the supply port (61) is sent to the pulverizing mechanism (8) by the feed rotating body (73), and is cut into chips (chips). When the object to be crushed (9) is being fed to the pulverizing mechanism (8), the feed rotating body (73) moves so as to follow the shape of the object to be crushed (9) and is always crushed. (9) is pressed with a force that can be sent out.

  When a material to be crushed exceeding the chipper's pulverization capacity, such as a stretched branch or a thick material to be crushed, is supplied and supplied, the material to be crushed (9) is caught in the supply port (61), and in that state, the feed rotating body ( 73), the object to be crushed (9) is tightly blocked in the supply port (61) and cannot be pulled out. Further, the feed rotator (73) maintains rotation in the feed direction so as to bite into the object to be crushed (9).

  In this way, when the object to be crushed (9) is clogged in the supply port (61) and the feed rotator (73) is bitten, the feed rotator (73) is moved by operating the operation lever (74) or the like. Separated from the object to be crushed (9), contact with the object to be crushed (9), that is, biting is released. Thereby, the to-be-ground object (9) clogged in the supply port (61) can be pulled out of the supply port (61). Since the object to be crushed (9) is pulled out manually, it is safe unlike the case where it is returned by a machine as in the prior art. In the release operation, it is not necessary to stop the rotation of the feed rotating body (73), and the operation can be performed quickly.

  The chipper, which has a structure in which the movable body (70) and the operating lever (74) are not in direct or indirect contact with each other during the pulverization operation, the feed rotating body (73) provided in the movable body (70) has a crushed object ( Even if it moves so as to follow the shape of 9) and does not interfere with the operation lever (74), it can be prevented that the operation lever (74) vibrates or swings.

(A) According to the present invention, a chipper capable of quickly and safely releasing clogging or biting of an object to be crushed, such as branches and leaves of a felled tree, and a method for releasing the biting of the object to be crushed in the chipper Can be provided.

(B) In the crushing operation, the chipper having a structure in which the movable body and the operation lever do not directly or indirectly come into contact with each other so that the feed rotating body provided on the movable body follows the shape of the object to be crushed. The operation lever is prevented from interfering with the operation lever even if it moves, so the operation lever can be prevented from vibrating or shaking during work. There is no safety.

  The present invention will be described in detail based on the embodiments shown in the drawings.

FIG. 1 is a side view illustrating the appearance of a chipper according to the present invention,
FIG. 2 is a front view explanatory view showing the appearance of the chipper,
FIG. 3 is a schematic explanatory view showing the internal structure of a chipper feeding portion, a feed mechanism, and a crushing mechanism.

The chipper C is a traveling type that allows the worker to travel while walking.
Reference numeral 1 denotes a chassis, 2 denotes a crawler, 3 denotes a driving unit including a prime mover, a centrifugal clutch, and the like, 4 denotes a handle, and 5 denotes a speed adjusting unit. At the upper part of the chassis 1, a charging unit 6, a feed mechanism 7 and a crushing mechanism 8 are provided.
Hereinafter, each part of the charging unit 6, the feed mechanism 7, and the crushing mechanism 8 will be described in detail.

(Input unit 6)
The input unit 6 includes a hopper 60 having a rectangular input port 62. In the hopper 60, a supply port 61 is provided at a portion connected to the feed mechanism 7.
The supply port 61 is set to a size that allows only the object to be pulverized to pass through the rotary blade 81 of the pulverizing mechanism 8, and in the present embodiment, the supply port 61 is a rectangular (rectangular) shape having a length of 95 mm and a width of 195 mm. Is formed. The size of the supply port 61 is not limited to the above, and can be set as appropriate.

(Feeding mechanism 7)
The feeding mechanism 7 is a so-called feeder, and is below the supply port 61 (FIG. 3) in the feeding direction of the upper side in the grinding chamber 80 described later and the material 9 (shown in FIGS. 4 and 5 described later). In the right side).

The feed mechanism 7 includes a movable body 70. The movable body 70 is pivotally supported on the upper side (left side in FIG. 3) by a shaft 71 and can be rotated in the vertical direction about the shaft 71.
A gate-shaped bar 72 (see FIG. 2) is attached to the movable body 70 so as to pass in the width direction (left-right direction in FIG. 2 and depth direction in FIG. 3). The bar 72 has a structure in which vertical members 721 on both sides are bent at a required angle toward the upper side (see FIG. 3).

  The movable body 70 has side walls on both sides, and a feed rotating body 73 is attached to the lower side therebetween. The feed rotating body 73 has a structure in which five blades 732 are provided on the rotating shaft 731 at equal intervals in the axial circumferential direction. The feed rotator 73 is driven to rotate in one direction by which the material to be crushed is supplied by the drive unit 3 with a driving force transmission system including a pulley, a belt and the like interposed therebetween.

  The movable body 70 is biased downward by a spring (not shown). Accordingly, the feed rotating body 73 attached to the movable body 70 moves up and down so as to follow and contact the shape of the object 9 to be crushed, and presses the object 9 to be crushed with a force capable of being fed out. Can be sent to. The feed rotator 73 is not structured to be rotated only in the one direction (arrow direction) and to rotate in the reverse direction.

  A biting release lever 74 that is an operation lever is provided slightly above the movable body 70. The biting release lever 74 is pivotally supported by a shaft 75 and can rotate in the front-rear direction (left-right direction in FIG. 3) about the shaft 75. The biting release lever 74 is biased forward by a spring (not shown) and stops at an angle slightly inclined forward (an angle shown in FIG. 3).

  The biting release lever 74 is located inside the bar 72 (on the right side of the horizontal member 722 in FIG. 3) and near one end of the horizontal member 722 (slightly on the left side of the vertical member 721 on the right side in FIG. 2). The biting release lever 74 is provided with a gap between the horizontal member 722 and the vertical member 721 so as not to contact the bar 72 in the normal state (stop position shown in FIG. 3) (see FIG. 3). Further, the bar 72 swings in a range where the lateral member 722 is away from the biting release lever 74 as the movable body 70 rotates (see FIG. 4 described later).

  When the bite release lever 74 is rotated backward from the state shown in FIG. 3, the base portion of the bite release lever 74 hits the horizontal member 722 of the bar 72. Then, when the biting release lever 74 is further rotated, the bar 72 is pulled backward while the mutual contact portion slips, and the movable body 70 connected to the biting release lever 74 is turned upward and pulled up. Accordingly, the feed rotator 73 is also raised.

  When the biting release lever 74 is operated, the biting release lever 74 hits the bar 72 on the base side close to the shaft support portion, so that it can be operated with a relatively light force by the action of the lever. The bar 72 may not be directly moved by the biting release lever 74 that is an operation unit, but a member that moves the bar 72 and an operation unit may be provided separately to link the operation unit and the member.

(Crushing mechanism 8)
The crushing mechanism 8 includes a crushing chamber 80 surrounded by a casing 84. In the crushing chamber 80, there is provided a rotary blade 81 for crushing (or crushing) the material 9 to be crushed into pieces. The rotary blade 81 has a rotary body 82 and has a structure in which a blade body 83 is fixed at two locations in the rotational circumferential direction of the rotary body 82. The rotary blade 81 is rotationally driven in the direction of the arrow by the drive unit 3.

(Function)
FIG. 4 is an explanatory view showing a state of pulverizing the object to be crushed,
FIG. 5 is an explanatory view showing a state where the biting by the feed rotating body is released when the object to be crushed is clogged.

  Referring to FIGS. 1 to 5, a method (or procedure) for releasing the biting of the feed rotating body 73 due to clogging of the object 9 to be fed in the supply port 61 of the charging unit 6 during the crushing operation using the chipper C. Will be described together with the operation of each part of the chipper C.

  An object to be crushed 9 such as branches and leaves cut down from a tree is put into a hopper 60 of a feeding unit 6 provided in the chipper C, and sent to a feeding mechanism 7 from a supply port 61 at the back. The material 9 to be crushed that has entered from the supply port 61 is sent out to the pulverizing mechanism 8 by a feed rotator 73 rotating in the feed direction. When the object 9 to be crushed is being fed to the crushing mechanism 8, the feed rotator 73 moves up and down so as to follow the uneven shape of the object 9 to be crushed and can always feed the object 9 to be crushed. Holding with great force.

  Further, as described above, even if the object 9 is moved in the vertical direction and the bar 72 provided on the movable body 70 vibrates or swings, it does not interfere with the operation lever 74. 74 can be prevented from vibrating or swinging. As a result, there is no risk of injury even if the surrounding operator touches the operation lever 74 projecting outward, and the safety is high.

  The object 9 to be crushed sent to the pulverizing mechanism 8 side is pulverized by the rotary blade 81 and is cut into chips (not shown). The chips are blown off from the crushing chamber 80 to the outside by the rotating air of the rotary blade 81 and discharged.

  When the object 9 to be crushed whose rear side is thicker or branches are put into the hopper 60, the object 9 is caught in the supply port 61 (see FIG. 5). Since the material 9 to be pulverized is pulled in the feeding direction by the feed rotator 73 in this state, the material 9 to be crushed is tightly clogged in the supply port 61.

  In this state, the feed rotator 73 keeps rotating in the feed direction so as to bite into the object 9 to be ground, and the object 9 cannot be pulled out. Further, even if the rotation of the feed rotator 73 is stopped, the feed rotator 73 becomes a resistance and is not easy to pull out.

  In this way, when the object to be pulverized 9 is clogged in the supply port 91 and the feed rotator 73 is engaged with the object to be pulverized 9, the operation lever 74 is operated to rotate backward while the feed rotator 73 is rotated. (See FIG. 5). Thereby, the movable body 70 is pulled up, the feed rotating body 73 is separated from the object 9 to be crushed, and a gap 79 is formed between the rotation locus of the tip of the blade 732 of the feed rotating body 73 and the surface of the object 9 to be crushed. .

  Thereby, the biting by the feed rotator 73 with respect to the object to be pulverized 9 is released, and the object 9 to be crushed clogged in the supply port 61 can be pulled out (or pulled back) to the outside of the supply port 61 and removed. Since the object to be crushed 9 is manually pulled out, it is safe unlike the case where the object to be pulverized 9 is returned by rotating the motor reversely as in the prior art. Moreover, in the said cancellation | release operation | work, as above-mentioned, it is not necessary to stop rotation of the feed rotary body 73, and it can work quickly.

  Further, the mechanism unit that drives the feed rotator 73 does not need to have a function of rotating the feed rotator 73 in the forward and reverse directions, and the control unit and the operation unit can be simplified. Therefore, the chipper C can reduce the manufacturing cost accordingly.

  Note that the terms and expressions used in this specification are merely explanatory and are not limiting at all, and terms and expressions equivalent to the features described in this specification and parts thereof. There is no intention to exclude. It goes without saying that various modifications are possible within the scope of the technical idea of the present invention.

Side view explanatory drawing which shows the external appearance of the chipper which concerns on this invention. Front view explanatory drawing which shows the external appearance of a chipper. The schematic explanatory drawing which shows the internal structure of the injection | throwing-in part of a chipper, a feed mechanism, and a crushing mechanism. Explanatory drawing which shows the state which is grind | pulverizing the to-be-ground material. Explanatory drawing which shows the state which canceled the biting by a feed rotary body, when a to-be-ground material was jammed.

Explanation of symbols

C Chipper 1 Chassis 2 Crawler 3 Drive unit 4 Handle 5 Speed adjustment unit 6 Input unit 60 Hopper 61 Supply port 62 Input port 7 Feed mechanism 70 Movable body 71 Axis 72 Bar 721 Vertical member 722 Horizontal member 73 Rotating body 731 Rotating shaft 732 Blade 74 Catch release lever 75 Shaft 8 Crushing mechanism 80 Crushing chamber 81 Rotary blade 82 Rotating body 83 Blade body 84 Casing 9 Object to be crushed

Claims (6)

A supply port (61) set to a size that allows only the object to be pulverized to pass through the rotary blade (81);
It is provided on the lower side of the supply port (61) in the feed direction of the object to be crushed, moves so as to follow the shape of the object to be crushed, and is pressed with a force capable of feeding the object to be crushed and pulverized mechanism (8) A feed rotator (73) that is rotationally driven only in the direction of feeding to
Operating means (74) capable of moving the feed rotating body (73) directly or indirectly to separate it from the object to be crushed;
It is equipped with a chipper. A supply port (61) set to a size that allows only the object to be pulverized to pass through the rotary blade (81);
It is provided on the movable body (70) that can be moved up and down or rotated, provided on the lower side of the supply port (61) in the feed direction of the object to be crushed, and moves so as to follow the shape of the object to be crushed A feed rotating body (73) that is driven only in the direction of feeding to the grinding mechanism (8) by pressing with a force capable of feeding the object to be ground,
An operation lever (74) capable of moving the movable body (70) indirectly by the action of the lever and separating the feed rotary body (73) from the object to be crushed;
It is equipped with a chipper. During the crushing operation, the movable body (70) and the operation lever (74) are structured not to contact directly or indirectly.
The chipper according to claim 2. Pass the object to be crushed through the supply port (61) which is set to pass only the object to be pulverized by the rotary blade (81),
The feed rotator (73) moves so as to follow the shape of the object to be crushed, is pressed with a force capable of feeding the object to be crushed, and is rotated only in the direction of feeding to the pulverization mechanism (8). The product to the crushing mechanism (8)
When an object to be crushed that does not pass through the supply port (61) is caught in the supply port (61), the rotating object (73) that is rotating to feed the object to be crushed is moved directly or indirectly to move the object to be crushed. Release contact with the
A method of releasing biting of the object to be crushed in the chipper. A hopper (60) for charging a material to be crushed which is wood or a lump, a pulverizing mechanism (8) for pulverizing the material to be crushed, and disposed between the hopper (60) and the pulverizing mechanism (8), In an apparatus for pulverizing wood or a block of wood provided with a feed mechanism (7) for sending the pulverized material to the pulverizing mechanism (8) in contact with the pulverized material
A chipper comprising means (74) for separating the feed mechanism (7) from the material to be crushed when the material to be crushed stops moving and cannot be fed by the feed mechanism (7). A hopper (60) for charging a material to be crushed which is wood or a lump, a pulverizing mechanism (8) for pulverizing the material to be crushed, and disposed between the hopper (60) and the pulverizing mechanism (8), In an apparatus for pulverizing wood or a block of wood provided with a feed mechanism (7) for sending the pulverized material to the pulverizing mechanism (8) in contact with the pulverized material
When the object to be crushed stopped moving and could not be sent by the feed mechanism (7), the object to be crushed was removed by pulling the feed mechanism (7) away from the object to be crushed.
How to remove wood or block of wood.

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