KR200312803Y1 - A blade-replaceable lawn cutter - Google Patents

Abstract

The present invention relates to a lawn harvester cutter, and more particularly, to a lawn harvester cutter that partially replaces a blade to suit a user's taste, and protrudes vertically upwardly to both the lower cutter frame extending in a horizontal direction and the lower cutter frame. And a side cutter frame extending in the longitudinal direction, wherein a blade is formed at the tip of each frame, wherein the blade 15 is a cutter of a lawn harvester mounted below the lawn harvester body. It is formed separately and is mounted to the front end of each of said frames (2, 3) by means of fastening means (7).

According to the present invention, in the case of abrasion and breakage of the blades that may occur in the turf mowing operation, there is no need to use a grinder or the like when the abrasion is worn. It can only be replaced easily, resulting in an excellent economic as well as operational efficiency.

Description

Blade cutter with replaceable blades {A BLADE-REPLACEABLE LAWN CUTTER}

The present invention relates to a lawn harvester cutter, and more particularly, to a lawn harvester cutter in which only a blade portion is replaced to suit a user's taste.

Turf is a perennial herb with a highly regenerating rice plant, and is mainly used for landscaping purposes. It has a wide range of applications from soil erosion and fire protection to roads, ports, railroads and airfields, to houses, parks, gardens, stadiums, and golf courses.

Lawn harvesters are generally known as machines for raising a 'horde' of grass. The term 'herd' refers to the removal of grass from the soil with its roots for transplantation or propagation. Recently, planting of grass is carried out by cultivating a large amount of grass, leaving the herd to a suitable standard, and planting it in a space to be constructed. The size of the herd is usually 45 cm long and 18 cm wide for grass, and 38 cm wide and 15 cm wide for golden grass. Therefore, in order to transplant and multiply the grass, the sod should be cut to produce the so-called 'turf'.

Lawn harvester according to the present invention is a device for producing a turf having a predetermined standard as described above. In general, the work of removing the grass is a rectangular shape having a predetermined size by first cutting the horizontal direction at a predetermined interval on a wide lawn, and then cutting the lengthwise by attaching a cutter according to the user's needs to the lawn harvester. Turf is formed.

Conventional lawn harvester is composed of a lower cutter frame (2) extending in the horizontal direction as shown in Figure 1 and a side cutter frame (3) protruding vertically upward and extending in the longitudinal direction at both ends of the lower cutter frame. A front facing blade 4 is integrally formed with the lower cutter frame at the front end of the lower cutter frame 2, and a front facing blade 5 is formed at the front end of the side cutter frame 3 with the side frame. It is formed integrally with. The lower cutter blade is inserted horizontally to lift the grass roots in the process of lifting the grass, and is positioned horizontally to lift the grass. The side cutter blades cut the grass on both sides. So that it is vertically forward facing. Here, the blade of the side cutter frame 3 is inclined forward with an inclination of about 45 ° with the ground for efficient cutting of the grass, first cutting both side grasses by the blade of the side cutter frame, and then lower The side cutter frame 3 is located in front of the lower cutter frame 2 because the work of rooting the grass with the blade of the cutter frame 2 is performed. The lawn harvester cutter 1 is operated by a suitable driving means (not shown). The driving means connects the driving means with a connecting groove 6 installed at the rear of the side cutter frame shown in FIG. Are connected by suitable elements (not shown). The element serves to change the rotational motion of the drive means such as a motor into a linear reciprocating motion and to transfer it to the cutter 1. The cutter is reciprocated continuously and swiftly back and forth to cut the grass. In general, the cutter is connected to the lower body of the conventional lawn harvester 30 as shown in FIG. 8 and the cutter cuts and harvests the grass by moving the harvester.

However, in the case where the blade is integrally formed in the cutter frame as described above, the blade function is easily worn and damaged by hard objects such as stones hidden in the soil during the grass cutting operation, and the blade function is released after long-term use, so the function of the blade is significantly deteriorated. do. Therefore, in the case of the integrated cutter as in the prior art, the worn blade was directly used by grinding the grinder again, and in the case of damage, the cutter itself has to be completely replaced. This has been pointed out as a significant disadvantage not only in the efficiency of the work but also economically.

Therefore, the object of the present invention is to compensate for the disadvantages of the conventional lawn harvester as described above, when the blade is worn or damaged, so that only the blade portion is designed to easily replace the grass harvester can reduce the efficiency and economic loss of work In providing a cutter.

1 is a perspective view of a conventional lawn harvester cutter,

2 is a perspective view of one embodiment of a lawn harvester cutter according to the present invention;

3 is an exploded perspective view of the lawn harvester cutter shown in FIG. 2;

Figure 4 is a cross-section of the frame, blade, reinforcement screwed,

5 is a blade mounting portion of another embodiment the blade is mounted,

Figure 6 is a lawn harvester cutter, adjustable horizontal width,

7 is a lawn harvester cutter formed with an intermediate cutter frame,

8 shows the cutter attached to the bottom of the lawn harvester body.

Description of the main parts of the drawing

1: lawn harvester cutter 2: lower cutter frame

3: side cutter frame 4: lower cutter blade

5: side cutter blade 6: connecting groove

7: Tightening means (screws) 8: Screw groove

14: blade mounting groove 15: blade

16: stiffener 19: fastener

20: middle cutter frame

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following embodiments, specific matters such as specific components are shown, which are provided to help the overall understanding of the present invention, and such specific matters may be modified or changed within the scope of the present invention. It will be obvious to those of ordinary skill in the field.

1 is a perspective view of a conventional lawn harvester cutter, Figure 2 is a perspective view of one embodiment of a lawn harvester cutter according to the present invention, Figure 3 is an exploded perspective view of the lawn harvester cutter shown in Figure 2, Figure 4 is a frame, blade, reinforcement 5 is a cross-sectional view of the blade mounting portion of another embodiment of the blade is mounted, Figure 6 is a lawn harvester cutter capable of horizontal width adjustment, Figure 7 is a lawn harvester cutter formed with an intermediate cutter frame, Figure 8 The cutters are attached to the lower part of the lawn harvester body, respectively.

As shown in Figures 2 to 5, the subject innovation is composed of a lower cutter frame extending in the horizontal direction and the side cutter frame protrudes vertically and extends in the vertical direction at both ends of the lower cutter frame, each said frame In the lawn harvester cutter mounted on the lower portion of the lawn harvester, the blade is formed at the tip of the blade, the blade 15 is formed separately from the lower frame (2) and the side frame (3), fastening means (7) It characterized in that it is attached to the front end of each frame.

At the tip of the lower cutter frame 2 and the two side cutter frames 3, blades 15 are mounted, respectively, which blades 15 are fixed by suitable fastening means 7. The fastening means (7) can securely fix the blade so that the blade is not separated from the frame during the grass harvesting operation, there is no limitation if the blade can be easily removed when replacing the blade, generally screw or rivet coupling is preferred Do. That is, a screw groove 8 is formed at the front end of each frame 2 and 3, and a hole 9 is formed at a position corresponding to the blade 15, and the hole 9 and the screw groove 8 of the blade are formed. Screw (7) penetrating through is coupled to the blade 15 is fixed to the frame. In the drawing, the blade 15 is mounted on the inner walls of the frames 2 and 3, but may be mounted on the outer walls of the frame.

When the blade 15 is mounted to each of the frames 2 and 3 by screwing, the blade 15 protrudes from each frame by the thickness of the blade to form a height difference without forming a flat portion of the frame portion and the blade portion. The lawn harvester performs the cutting operation in the forward and backward reciprocating motion by a suitable driving means. When the height difference occurs as described above, the blade acts as a locking jaw when the cutter is retracted backward after cutting the grass forward. There may be damage to the grass and smooth grass cutting is difficult. Therefore, in order to match the height of the blade and the frame, it is preferable that the blade mounting groove 14 having a '┛' shape is formed in a portion where the blades of each frame tip are mounted to form a step. The blade mounting groove 14 is formed over the entire length of each frame (2, 3) in the portion where the blade 15 is mounted, the blade 15 is mounted on the blade mounting groove 14 and the screw ( 7) is fixed by. According to this method, since the height between the blade and each frame becomes uniform, the cutting operation can be performed smoothly without damaging the turf.

The blades 15 used for the lawn harvester may be different in thickness and strength depending on the working environment. When a relatively thin and weak blade 15 is used, it is preferable that the reinforcement 16 is inserted into the outer edge of the blade as shown in FIG. 3 to protect the blade. The reinforcement 16 may serve to protect the blade by more firmly fixing the blade 15 to each frame when the weak blade is subjected to the force. The reinforcement member 16 also has a hole 10 formed at a position corresponding to the screw groove 8 of each frame and the hole 9 formed in the blade, thereby screwing the frame, blade, and reinforcement as a whole. Similarly, in order to match the height of the blade 15 and the reinforcement 16 and the frame (2,3), it is preferable that the blade mounting groove of the '┛' shape is formed to form a step in the portion where the blade is mounted at each end of the frame. This joining cross section is shown in FIG. 4. If a thicker and relatively high blade 15 'is used, only the blade 15' can be directly coupled to the frame without insertion of a reinforcement as shown in FIG.

As shown in FIG. 6, the lower cutter frame 2 and each side cutter frame 3 may be formed separately, and may be formed to be coupled and separated. As mentioned in the prior art, the size of the turf is somewhat different depending on the type of grass, in the case of a conventional lawn harvester, the lower cutter frame 2 and the side cutter frame 3 are integrally formed. Therefore, in order to cut turf of different specifications, it was inevitable to replace the cutter with different specifications. Therefore, if the lower cutter frame (2) and the side cutter frame (3) are formed separately and then fixed by screws or fastening means, when cutting operations of turf of different specifications are required, the lower cutter frame ( It is possible to easily cut the turf of the desired size by replacing it with a frame longer than 2). That is, the width of the cutter can be adjusted by easily replacing the lower cutters having different sizes according to the use conditions. This configuration, as shown in Figure 6, in the portion where the side cutter frame 3 and the lower cutter frame 2 is connected, protruding the fastening portion 19 in the horizontal direction from the side cutter frame (3) It can be achieved by forming a screw groove corresponding to the fastening portion 19 and the lower cutter frame 2 to be fixed to the lower cutter frame 2 by screwing. At this time, when the fastening portion 19 is fixed to the lower cutter frame 2, the height difference between the fastening portion and the lower frame may occur as in the case of blade mounting, which is similarly formed to form a '┛' shape groove I can solve it. That is, the mounting groove is formed on the lower cutter frame 2 and the fastening portion 19 is mounted to the mounting groove and is fixed by screwing.

As illustrated in FIG. 7, an intermediate cutter frame 20 may be installed in an area between the two side cutter frames 3 of the lawn harvester cutter.

The intermediate cutter frame 20 is installed on the lower cutter frame 2 between the two side cutter frames 3 in the same shape as the side cutter frame (but not extended to the rear side), and at the front end. The blade can be installed in the same way. The intermediate cutter frame 20 is preferably configured to be fixed to the lower cutter frame 2 by welding or suitable fastening means and, if necessary, to be separated and replaced as well. If the intermediate blade is configured in this way, since it is possible to cut the turf twice in one operation at the same time, a considerable benefit in terms of work efficiency can be obtained.

According to the present invention as described above, in the case of abrasion and breakage of the blades that may occur in the turf mowing operation, there is no need to use a grinder or the like directly when worn, replacing the entire cutter even if broken Only the blades can be easily replaced without the need for excellent efficiency in terms of work efficiency and economics.

Claims (6)

It is composed of a lower cutter frame extending in the horizontal direction and the side cutter frame protrudes in the vertical direction and vertically extending at both ends of the lower cutter frame, the blade is formed on the tip of each frame, mounted on the lower lawn harvester body For lawn harvester cutter, The blade 15 is formed separately from the lower frame 2 and the side frame 3, the blade is replaceable grass cutter cutter, characterized in that mounted to the front end of each frame by a fastening means (7) . The method of claim 1, The fastening means (7) is a blade replaceable lawn harvester cutter, characterized in that the screw coupling. The method according to claim 1 or 2, Blade replacement blade lawn cutter, it characterized in that the blade mounting groove 14 is formed in the lower frame (2) and the side of the blade is mounted at the end of the side frame (3). The method according to claim 1 or 2, Reinforcement (16) is inserted outside the blade 15, the blade is replaceable grass cutter cutter, characterized in that fixed to the blade (15) and each frame (2,3) by screwing. The method according to claim 1 or 2, The lower cutter frame 2 and the side cutter frame 3 are separately formed, and a fastening portion 19 is formed at a side at which the side cutter frame 3 and the lower cutter frame 2 are connected to each other. 3) is formed so as to protrude in the horizontal direction, the fastening portion 19 is mounted to the lower cutter frame (2) by screwing the blade is characterized in that it is formed so that replacement of the lower cutter of different specifications Grass cutter cutter available. The method according to claim 1 or 2, Blade cutter replaceable grass cutter cutter, characterized in that the intermediate cutter frame (20) is mounted on the lower cutter frame (2) between the two side cutter frame (3) in the same manner as the side cutter frame.