JPS6141800Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a blade with a rake that is installed on a tractor as a working attachment.

It is well known that bulldozers have been used for lumber collection work in fields such as forestry.

However, since the blade of a bulldozer generally has only its original soil removal function, when the dozer is used for lumber collection work as described above, it is necessary to use a separately prepared root rake and blade as attachments for the work. The reality is that they are replaced each time.

However, a dozer equipped with a root rake instead of a blade cannot perform earth removal work at all, causing many problems.

That is, since the sites where lumber gathering work is generally performed are often in steep mountainous areas, dozers used for this type of work must enter the site while making a path.

Therefore, the dozer requires a blade upon entry to the site, and upon arrival at the site, the blade must be replaced with a root rake as described above. Additionally, these replacements must be performed repeatedly each time the dozer changes sites.

Moreover, such replacement work not only requires a crane or the like, but also requires a considerable amount of time and effort, so it is simply impossible to repeat this work many times a day.

Further, preparing a root rake separately from the blade itself is a large burden in terms of cost.

Therefore, particularly in fields such as forestry, there is a demand for a work attachment that has both the functions of a blade and a rake.

This invention was made in response to the above request, and its main purpose is to provide a rake-equipped blade that can selectively perform earth removal work and rake work with one blade at any time. There is something to do.

Another purpose of this invention is that there is no need for an expensive root rake dedicated to rake work.
To provide a blade with a rake that can reduce costs.

In order to achieve each of the above objectives, this invention has a plurality of rake yanks arranged on the front side of the blade body so as to be able to move up and down, and these rake yanks can be locked and held in the use position or non-use position with a simple operation. It is characterized by what it did.

Hereinafter, preferred embodiments of this invention will be described based on the drawings.

The blade main body, designated by reference numeral 1, has a cutting edge 2 integrally at its lower edge, and has a well-known structure that is installed at the front of a tractor via a push arm, a lift cylinder, etc.

On the front surface of the blade main body 1, three sets of upper, middle, and lower shank brackets 3a, 3b, and 3c are arranged in rows at regular intervals in the vertical direction, and multiple sets are arranged in rows at regular intervals in the horizontal direction. It is designed to protrude in such a way that it

Shank brackets 3a, 3b, 3c in the illustrated example
are welded in advance to the base plate 4 of each set, which is curved to match the front curvature of the blade body 1,
The plate is welded to the front surface of the blade body 1.

The welding is performed with the lower end edge of the base plate 4 brought into contact with the upper step edge of the cutting edge 2.

Therefore, each set of shank brackets 3a, 3
b and 3c are necessarily positioned by welding the base plate 4 so that they are properly aligned avoiding the cutting edge 2.

Each shank bracket 3a, 3b, 3c has a pin hole 5, respectively.

In these shank brackets, the base end of a rake shank 6 is pivoted to the middle bracket 3b of each set via a pivot shaft 7 so as to be vertically movable.

The rake yank 6 has a structure in which the longitudinal direction of the shank is bent in accordance with the front curvature of the main body 1 so that it extends below the cutting edge 2 along the curved front surface of the blade main body 1 when in the downward state. The situation is shown in more detail in FIGS. 2 and 3.

Each rake yank 6 also has an edge 8 formed along the longitudinal direction on the lower front side when in the downward position.

Further, in the middle of each rake yank 6, a pin hole 9 is provided for matching the pin hole 5 of each set of upper bracket 3a to lower bracket 3c.

The rake yank 6 is detachably locked to the upper bracket 3a in the upward position and to the lower bracket 3b in the downward position by a lock pin 10 through the pin holes 5 and 9.

The rake-equipped blade constructed as described above is installed at the front of the tractor and is used for both earth removal work and rake work.

First, during earth removal work, all the rake yanks 6 are rotated upward to align the pin holes 9 of the shank with the pin holes 5 of the upper bracket 3a. Next, when the locking pins 10 are inserted into the pin holes 5 and 9, all the rake yanks 6 are locked and held in an upward position, so that the function of the cutting edge 2 is not impaired by the shank. .

Therefore, in this state, the soil removal work that the blade is supposed to do can be smoothly performed.

When performing rake work in such a state, remove the lock pin 10 from the upper bracket 3a, rotate all the rake yanks 6 to the downward position, and insert the lock pins into the pin hole 9 of the shank and the pin hole 5 of the lower bracket 3c. Insert 10.

Since the rake shank 6 is held in a locked state extending below the cutting edge 2, normal rake work can be carried out smoothly by the shank.

In this case, all the rake yanks 6 are bent in accordance with the front curvature of the blade main body 1 as described above, so that most of the rake yanks 6 are in a downward extending state in contact with the front surface of the main body 1.

Therefore, the load that is applied to the rake yank 6 during operation is actually evenly applied to the entire blade body 1.

Therefore, there is no fear that an excessive shearing load will be applied to the pivot shaft 7, lock pin 10, etc. of the rake yank 6 during rake work, causing them to bend or be damaged.

Reference numeral 11 in FIG. 1 is a guard member made of a metal pipe or the like that is integrally connected to the upper end of the blade body 1 by welding or the like. Reference numeral 12 designates a guard net that is integrally stretched over the guard member 11, and reference numeral 13 designates a guard net that is integrally provided on both sides of the upper end of the blade body 1, on which a rope or the like for pulling materials to be collected such as logs is hung. It is a hook member.

As described above, in this invention, the base ends of a plurality of rake yanks arranged horizontally at regular intervals on the front side of the blade body are pivoted so as to be vertically movable, and the shank is held in an upward position or a downward position by a locking pin that can be freely attached or detached. Since the structure is such that the lock is held by the lock, the following various effects can be obtained.

(i) When each rake yank is turned upward and locked, the blade can carry out the original soil removal work, and when the rake yanks are turned downward and locked, the normal rake work can be carried out, and so on. It can perform both work and rake work functions.

For this reason, for example, in the field of forestry, when entering a timber collection site while making a road with a blade, and carrying out timber collection work with a rake at the site,
Both of the above operations can be carried out smoothly and efficiently at any time without any need for large-scale replacement work of blades and root rakes as in the past.

(ii) The functions of the blade and the rake can be easily changed by the extremely simple operation of rotating the rake yank and locking it with the lock pin.

(iii) Since there is no need for an expensive root rake dedicated to rake work and the configuration is simple, the cost can be significantly reduced and the value of use can be increased.

[Brief explanation of the drawing]

The drawing shows a preferred embodiment of this invention.
FIG. 1 is a perspective view of a blade with a rake, FIG. 2 is a side view showing the related structure of the blade body and the rake yank, FIG. 3 is a side view of the rake yank, and FIG. 4 is a front view of the same shank. 1 is the blade body, 2 is the cutting edge,
3a, 3b, 3c are shank brackets, 5 is a pin hole, 6 is a rake shank, 9 is a pin hole, and 10 is a lock pin.

Claims (1)

[Claims for Utility Model Registration] (1) A blade having a rake function, which includes a blade body having a cutting edge integrally at its lower end, and a blade body integrally protruding from the front surface of the body and arranged in rows at regular intervals in the vertical direction. A set of upper, middle, and lower parts of the shank bracket, in which multiple sets are arranged at regular intervals in the horizontal direction and pin holes are provided in each set, and each set of these shank brackets. a plurality of rake yanks whose proximal ends are pivotally supported on an intermediate bracket so as to be movable up and down, and each of which has a pin hole provided in its intermediate portion to be aligned with a pin hole in either the upper bracket or the lower bracket; A blade with a rake comprising a locking pin for selectively locking a shank to an upper bracket in an upward position and to a lower bracket in a downward position through respective pin holes by rotational displacement. (2) The scope of the utility model registration claim, characterized in that the rake yank is bent to match the curved front surface of the blade body so that it extends below the cutting edge along the curved front surface of the blade body when the rake yank is in the downward position. The blade with a rake according to item 1. (3) The rake according to claims 1 and 2 of the utility model registration, characterized in that the rake yank has an edge portion formed along the longitudinal direction on the front surface of the tip side when in the downward state. Comes with a blade. (4) The blade with rake according to claim 1, wherein the shank bracket is arranged on the front side of the blade body, avoiding the cutting edge of the blade body. (5) The shank bracket is curved to approximately the same curvature as the front curvature of the blade body and is welded to the bracket seat plate of each set welded to the body. Range 1
A blade with a rake according to items 1 and 4.