KR200383534Y1 - Cutting Machine an Roller - Google Patents

Abstract

The present invention relates to a roller for mowing, weeding is carried out by rotating the rotating shaft of the drive unit (gearbox) is attached to the cutting blade through the cable and gear provided in the working rod of the engine of the portable mowing machine In the mowing machine, a roller or roller formed of a frame or a shaft and a ball is attached to the rotating shaft of the driving unit, so that the subjective working distance and height can be easily adjusted. It is to provide a roller of the portable mower to improve the.

Description

Cutting Machine {Cutting Machine an Roller}

The present invention is designed to be equipped with a nut that binds the cutter blade to the drive shaft (gearbox, hereinafter drive unit) of the portable mowing machine (hereinafter mowing machine) so that the roller can be attached, or attached to the roller to be rotated, the Korean Intellectual Property Office According to an unpublished publication filed by the applicant's affiliated company according to the support of 10-2003-0078830 and the like, according to the unpublished publication, the shaft for separating the rotating shaft of the drive unit into two shafts and attaching a cutter blade and a roller Although there are devices separated by axles that can be attached, their function and configuration are insufficiently disclosed. The present invention is to complement and improve the above-mentioned disadvantages, and to a roller configured to be directly fastened to the drive shaft of the general portable mowing device, and functionalized to measure the subjective working distance and height during weeding.

Generally, mowing machines are portable cutting machines for cutting weeds and lawns such as farms, fields, orchards, or oxygen or gardens, and weeding is carried out in places where weeds and grasses are grown. Since there is no auxiliary device that subjectively measures the working distance and height, the worker artificially approaches the cutter blade attached to the rotating shaft of the drive part close to the ground, so the mowing is not possible. There is a constant risk of injury due to collisions and pulverization, and there are many technical difficulties for unskilled workers such as beginners to carry out weeding.

The mower roller of the present invention improves and supplements the disadvantages of the above-described mower, and it is possible to design and attach a roller that is free to rotate forward, backward, left and right on the rotation shaft of the drive unit which receives the power generated by the engine of the mower. Portable mowing machine that can be used safely and easily by skilled workers, unskilled workers, women and senior citizens by providing mowing roller with easy function of subjective working distance and height during weeding operation and remarkable fatigue even for long time work. To provide a roller of.

The roller of the first embodiment (Fig. 1) in the configuration of the mower roller (wheel) is a structure that is press-bended the center portion in the U-shape on the plate of the metal material, the coupling groove is opened and coupled to the drive unit rotation shaft 200 On the one side of the roller plate 10 is provided with a folding 60, and one side of the support plate 20, 30 coupling means 70, and one side of the metal plate is a folding 60, the opposite side Binding groove groove (20-1.30-1) is opened, the center portion is formed into an elliptic hemispherical shape, the inner support plate 20 and the outer plate 30 is formed by the expansion groove in which the spherical roller 50 is held in the hemispherical center One side of the support plate is configured to be coupled to the folding portion of the roller frame 10, the spherical roller 50 generated by injection, molding of plastic or lightweight material between the hemispherical expansion groove of the inner support plate 20 and the outer support plate 30 ) Coiled spring to close and support it 40 is inserted into the bent portion of the roller frame 10, and then the binding holes 20-1 and 30-1 formed on the inner and outer support plates 20 and 30 and the binding holes 70 of the roller frame 10 are formed. -1) by inserting and engaging the coupling member 70, the roller of the first embodiment (Fig. 3) is completed. Next, as a roller (Fig. 4) structure of the second embodiment, a fastening nut (Fig. 1, 100 and Fig. 13, 100) for fastening the cutter blade 110 is formed (Fig. 7), and the roller (Fig. 6) is constructed. It is formed by pressing a round bar of a material into a forging die or by lathe processing. The above apparatus is referred to as a shaft nut (Fig. 7) for convenience, and in more detail in the configuration of the shaft nut 101, the accompanying drawings (Fig. 7) and As described above, the upper end portion is formed in a T-shape to make the plane in close contact with the cutter blade 110 portion Y, and the nut pitch portion coupled to the bolt pitch portion 200-1 of the drive shaft rotation shaft 200 at the center portion thereof. The upper end is formed by opening 101-1, and the bearing shaft 103-1 is opened at the lower end of the T-shaped upper end so that the roll bearing 103 is inserted, so that the roll bearing 103 inserted therein is not detached. After opening the snap key seat (K), tighten the snap key (K) and crack down, and the axis descending to the lower end is hemisphere In consideration of the height of the mold roller 150, the length of the shaft is also configured in proportion. The end portion is provided with a fastening part 102 in a hexagon or a square like a head of a general bolt, and is formed with a wrench tool (Figs. 7 and 101) configured to engage with the rotating shaft 200 of the driving part with a wrench tool. Hemispherical roller (Fig. 8, 150) forming the entire case is made by injection or molding in a plastic or lightweight material, forming a through groove from the upper center portion to the lower portion, the upper end of the expansion groove 103 is inserted into the roll bearing 103 -2) and the lower end of the hex nut (Figs. 7 and 101) formed with an expansion groove C having a size to which a wrench tool is inserted into the fastening part 102 of the shaft nut 101 (Figs. 8 and 150). And the roller for the mowing machine of the second embodiment (FIG. 6) is completed. The roller (FIG. 3) of the first embodiment described above attaches the roller frame 10 in the dissected state (FIG. 2) to the rotating shaft 200 of the driving unit. Combining and fastening with the binding nut 100, the spherical roller 50 in the hemispherical expansion groove of the inner and outer support plates (20, 30) ), The spring 40 is inserted into the bent portion of the roller frame 10, and then the binding grooves 20-1 and 30-1 of the inner and outer support plates 20 and 30 are engaged. There is an additional inconvenience of assembling the bolt 70, but there is an advantage that the left and right rotation of the spherical roller 50 is free, left and right, the roller of the second embodiment (Fig. 6) pitch of the rotating shaft 200 of the drive unit Although the cutter blade is exchanged and the roller is easily attached and detached, the hemispherical roller 150 has the shaft nut 101 on the left and right sides. There is a drawback of the operation only rotated. When the rollers completed in the first and second embodiments are attached to the drive shaft 200 of the mowing machine and placed on the ground, the weeding work is carried out by separating the rollers from the ground at regular intervals. Therefore, it is possible to work for a long time and provide a sharp mowing machine. Since the cutter blade 110 is coupled to the rotating shaft 200 of the drive unit in the structure of the mowing machine, the roller is to be configured to facilitate replacement or detachment of the cutter blade frequently worn during the weeding operation. .

The following describes various types of embodiments with reference to the accompanying drawings.

FIG. 1 is a practical use diagram with the completed roller (FIG. 3) of the first embodiment attached thereto, and as described above, the roller and cutter blades are assembled to facilitate the removal and attachment of the roller and the cutter blade. And the description overlapping the above with respect to the completeness (Fig. 3) plane. The technique disclosed in a number of patent practical publications is one of the features of the roller and the attachment of the roller or the like on the rotating shaft 200 of the driving unit. Unexpectedly, many of them were malformed or inefficiently implemented. FIG. 4 is a practical use diagram of the second embodiment, and FIG. 5 is a configuration diagram showing the rotation shaft 200 and the rotation shaft pitch portion 200-1 of the drive unit (gear box). Fig. 6 is a complete view of the roller of the second embodiment. Fig. 7 shows the shaft nut 101 of the second embodiment, and Fig. 8 shows the structure of a hemispherical roller 150 showing the outer rotor of the shaft nut 101. It is also. The embodiment will be omitted overlapping with the second embodiment described above.

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Fig. 9 is a third embodiment, which is formed by deforming the shaft nuts (Figs. 7 and 101) of the second embodiment, and shortly cuts the lower shaft portion, and then includes a fastening portion (Figs. 9 and 102) on the upper side of the T-shape. . At the bottom, the roll bearing 103 is formed by inserting the structure. The auxiliary fastening part 102-5 is opened and opened on the side of the hemispherical roller 150 and the shaft nut 101 side, so that it can be tightened loosely when tightening with the rotating shaft 200 by using an auxiliary device such as a driver or an awl. The tight tightening is the shaft nut 101 is formed by the fastening tool to the fastening section 102 of the upper side, the hemispherical roller 150 constituting the outer rotor is a lower end at the top of the figure It is configured to penetrate through, and the expansion groove is opened so that the spherical roller 50 is introduced from the upper end, the spherical roller 50 is exposed to the outside to 50% or less, so as not to escape to the outside, The hemispherical roller 150 should be configured to smooth the finishing portion to hold the spherical roller 50. The spherical roller 50 is introduced into the hemispherical roller 150 formed as described above, and then a spring 40 to support the spherical roller 50 is inserted therein, followed by inserting a shaft nut (Figs. 9 and 101) into the third embodiment. An example roller (FIG. 9) is completed. The third embodiment is performed by adding a spherical roller 50 to the roller of the second embodiment (FIG. 6), and is a hemispherical roller 150 that is an external rotating body of the second embodiment. Is driven only to the left and right around the shaft nut 101, while the third embodiment of the roller (Fig. 9) plays a role to compensate for the shortcomings of the hemispherical roller 150, so that It provides a free driving function, but the space between the cutter blade 110 and the roller (Fig. 4) is narrow when the roller (Fig. 9) is attached and detached to the rotating shaft 200 of the driving part, so that the fastening tool is not smoothly inserted. There are some disadvantages.

Fig. 10 is a fourth embodiment, in which the shaft nut 101 of the first embodiment is deformed very shortly. The roll bearing 103 is composed of one body, the upper T-shaped washer (Y) in the plane, the nut pitch portion (101-1) is opened in the center, T-shaft nut (Fig. 10, 101) The roller of the structure which is completed by coupling the one embodiment roller (FIG. 3) to the shaft nut 101 which is provided with the fastening part 102 in the upper side of the upper part, or is selectively provided with the fastening part 102A in the lower end part ( 10, and the description of the one-acting roller (FIG. 3) is omitted. For reference, once again, the roller in this article is attached on the drive shaft 200 to which the cutter blade 110 is attached. When the cutter blade 110 is broken or worn, it is necessary to dismantle the roller to replace the cutter blade structure, it should always be easy to attach and detach easy and simple structure. The embodiment of the present invention shows a structure that can be easily attached and detached as much as possible in view of this. FIG. 11 is a fifth embodiment, and has a short shaft nut (Fig. 11, 101) having the same configuration as the shaft nut 101 of the fourth embodiment. However, the fastening part 102 is provided at the lower end of the T-shape, and the hex nut (Fig. 11, 101) is formed with a snap key (Fig. 11, K) for preventing the release of the hemispherical roller 150. The roller 150 is opened so as to penetrate from the top to the bottom, and the bottom is an extension groove to the extent to which the spherical roller 50 is to be introduced and the depth to which the fastening portion 102 of the shaft nut (Figs. 11 and 101) is exposed. , And opens a nut part and an insertion hole of a coupling structure for seating the spherical roller 50 introduced into the hemispherical roller 150, and an upper end of the hemispherical roller 150 formed by opening an expansion groove having a size into which the roll bearing 103 is inserted. ) Is inserted into the shaft nut (Figs. 11 and 101) to prevent the release snap. To form a hemispherical roller, and to couple the above to the rotating shaft 200 of the drive unit to bind to the fastener 102 opened at the bottom of the shaft nut (Fig. 11, 101) using a wrench tool, and then spherical roller (50) ) Is a roller of a shape (figure 11) completed by injecting into the hemispherical roller 150 by fastening with an axial bolt B supporting the spherical roller 50. The roller is a hemispherical roller 150 is a shaft nut. The left side and the right side are driven around the shaft 101, and the spherical roller 50 provides the operation of driving the shaft bolt B forward and backward around the shaft B. Fig. 12 shows the shaft nuts (the fourth and fifth embodiments). 101 and the roller frame 10, the shaft nut 101 and the hemi-spherical roller 150 provided with only the binding holes on the roller frame 10 formed in this embodiment may be configured to be attached and detached. 13 is a physical reference diagram of the mower drive shaft 200.

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The overlapping description of the rollers of the present invention is excluded as much as possible, and various types of embodiments are shown in the drawings, but the shafts are combined with the shaft nuts 101 as in the second, third, fourth, and fifth embodiments. And a roll bearing 103 integrated with the hemispherical roller 150 to be inserted into the bearing seating groove 103-2 of the hemispherical roller 150 to naturally detach the hemisphere roller 150 and the shaft nut 101. The key fastening structure can be selectively configured as necessary. [0044] Further, the sixth embodiment combining only the advantages of the first embodiment and the embodiments of 2, 3, 4, and 5 is also possible. 9,150) divided into upper and lower ends. One side of the lower end of the hemispherical shape in which the hollow part is opened is combined with the upper end with a folding device, and is configured as an open and closed type, and a spherical roller 50 is introduced into the center of the hemispherical lower case. Completed by fastening one side of the lower part to one side of the upper part There deulsu a sixth silye in shape. In addition, only the shaft nut 101 and the roller frame part 10 of FIG. 12 may be attached to the rotating shaft 200 of the driving unit, and then only the rollers sold separately may be attached. The material of the spherical roller 50 or the hemispherical roller 150 is preferably made of plastic or polyurethane of high strength and light weight material such as PP and PE. However, deformation of the shaft nut 101, which is the core of the present invention, Modified implementations of the proportional hemispherical roller 150 and the spherical roller 50, and various modifications within the scope of the claims are intended to fall within the scope of the present invention.

Looking at the operation of the anti-roller roller completed in the above structure, when the starting mowing machine and the preparation of the mowing operation is completed, the roller attached to the driving unit rotating shaft 200 is in close contact with the ground or raise the engine rotation in a state close to the cutter blade ( 110) When weeding is proceeding while the part rotates at high speed, the working rod of the mowing machine spaced apart from the ground is pushed to the left, right or front and rear only to shake and the mowing operation is performed smoothly and stably by driving the roller. The distance and height are subjectively measured to avoid accidental collisions with the ground or foreign matters.While working with small rollers attached at all times with lightweight materials, there is no inconvenience. Reduces the weight of the drive and cutter blades and the vibrations from the vibration of the rotating shaft, making it easier for both skilled and unskilled workers to mow more easily. It is to provide a roller for use.

The effect caused by providing the mowing roller of the present invention is that the drive unit rotation axis 200 of the mowing machine and the roller does not rotate synchronously, and the work distance and height that are always spaced apart by the height of the roller from the ground during weeding are subjectively provided. The number of accidental collisions with the ground is reduced, thus providing the effect of preventing safety accidents, and significantly reducing work fatigue, thereby providing a mowing machine that is easier for elderly, skilled, and unskilled workers.

1 is a practical use of the embodiment.

2 is a schematic view of the assembly of the embodiment.

3 is a schematic view of completion of the roller of the embodiment.

4 is a practical use of the embodiment.

Structure diagram of the drive shaft of the 5 degree mowing machine.

6 is a schematic view of completion of the roller in the embodiment.

7 is a schematic diagram of shaft nuts of an embodiment.

8 Figure 2 structure of the hemispherical roller in the embodiment, the outer.

Figure 9 is a schematic view of the completion of the roller of the embodiment.

Figure 10 is a schematic view of the completion of the roller of the embodiment.

11 Fig. 5 is a schematic diagram showing the completion of the roller.

12-degree shaft nut and frame configuration. 13-degree drive shaft physical reference.

BRIEF DESCRIPTION OF THE DRAWINGS

B Spherical roller shaft bolt, C wrench tool insert groove, K snap key and key seat, Y washer. 10 Roller frame, 20 internal support plate, 20-1 support plate binding hole, 30 external support plate, 30-1 support plate binding device. 40 springs, 50 spherical rollers (wheels), 60 folded, 70 bolts, 70-1 nuts, 100 cutter blade coupling nuts, 101 shaft nuts (nuts that combine roller shaft and cutter blade), 101-1 shaft nut pitch , 102 fastening part (hexagonal head), 102A fastening part, 102-1 cover, (wrench insert groove cap), 102-5 auxiliary fastening part, 103 roll type bearing, 103-2 bearing seating groove, 110 cutter blade, 110- 1 Cutter blade internal support washer, 110-2 Cutter blade external support washer. 110-3 Cutter blade binding nut loosening washer. 150 hemispherical roller, 200 rotating shaft, 200-1 rotating shaft bolt pitch, (gearbox) driving section.

Claims (11)

In the mower roller, It is made to be coupled to the rotating shaft (Fig. 1, 200) of the drive unit (gearbox), and provided with a folding (60) on one side end, and one side end is provided with a roller frame (coupling means 70) 1, 10);  The central portion of the metal plate is formed into a hemispherical shape (Fig. 2), and an expansion groove in which the spherical roller 50 is held in the hemispherical center part (Fig. 2) is opened. Internal and external support plates (Figs. 2 and 20.30) provided with (20-1, 30-1),  Spherical roller 50 is made of plastic or lightweight material, injection or molding, it is put in close contact between the hemispherical expansion groove of the inner and outer support plates (Fig. 2, 20, 30). Roller for mowing machine, characterized in that configured to engage with the roller frame (Fig. 1, 10) by the fastening member (70,),  In the mowing roller, it is configured to be coupled on the rotating shaft (Fig. 1, 200) of the drive unit (gear box),   As the nut (Figs. 1, 13, 100) for binding the cutter blade 110 to the rotating shaft 200 is formed by the T-shaft nut 101, The upper end of the T-shape nut 101 is widened to make a washer (Y), and a nut pitch portion 101-1, which is fastened to the bolt pitch portion 200-1 of the drive shaft rotation shaft 200, is opened at the center thereof. .     The roll bearing 103 insertion shaft (Figs. 7 and 103-1) is provided on the T-shaft. Intermittent means (Fig. 7, K) for preventing the separation of the roll bearing 103 inserted into the shaft, A shaft nut 101 formed of a fastening part 102 (angle head) provided at an upper end side or a lower end side of the T-shaped shaft nut 101, The hemispherical roller 150 forming the outer casing of the shaft nut 101, It is made of plastic or lightweight material by injection or molding, and is made of hemispherical shape, Opening grooves to penetrate the upper and lower, but the top of the groove (Fig. 8, 103-2) and the roll bearing 103 is inserted and seated; At the bottom, open a tool insertion hole (Fig. 8, C) to which a wrench tool is to be inserted, Hemispherical roller 150 is provided with an expansion groove (Fig. 9 or 11) and the body means of the size to selectively apply the spherical roller 50, Roller for mowing, characterized in that the coupling to the shaft nut 101,  The roller according to claim 2, wherein a spherical roller 50 having a predetermined size is introduced into the upper end of the hemispherical roller 150, and the shaft nut 101 is inserted into the upper end of the hemispherical roller 150 (Fig. 9). 150, the shaft nut (101) is driven to the left and right, the spherical roller 50 is a roller for mowing machine, characterized in that is driven to the left, right, front, back.         According to claim 2, the hemispherical rollers (Fig. 9, 150) is separated into upper and lower ends, one side of the upper and lower ends are folded, and one side is provided with a coupling means, and is expanded to the center of the lower case formed in a hemispherical shape. A roller for mowing machine, characterized in that a roller is formed by opening a groove, and a spherical roller 50 is inserted therein, and a casing at the lower end of the roller.        According to the above 1 and 2, the roller (Fig. 3) and the shaft nuts (Fig. 10, 101) provided with both fastening parts 102 and 102A on the upper and lower ends of the T-shaped shaft are combined (Fig. 10), and the hemispherical inner The mower roller (Fig. 10), characterized in that the opening and closing of the outer support plate 20.30 are assembled.         The spherical roller 50 is further formed inside the hemispherical roller 150 formed by the shaft bolt (Fig. 11, B) supporting the spherical roller 50 and the nut and the insertion hole to which the shaft bolt is fastened. 11, the hemispherical roller 150 is driven left and right with the shaft nut 101 as the axis, and the spherical roller 50 is moved forward and backward with the shaft bolt (Fig. 11 and B) as the axis. A mowing roller characterized by being driven (Fig. 11),        According to claim 2, the shaft nut (Fig. 12, 101), and the coupling means is provided at the left and right ends of the roller frame 10 portion coupled to the shaft nut, the hemispherical roller in which only the coupling bolt insertion holes are opened. 12) A mower roller, characterized in that configured in conjunction with.         The method of claim 1, wherein the roller frame 10 or the hemispherical roller 150 is inserted into one side, the coil-shaped spring for supporting the spherical roller 50 to the auxiliary member is further provided as a member roller.         The cutting machine roller of claim 2, further comprising a stopper 102-1 for preventing foreign substances from entering the tool insertion hole (FIG. 4.C) of the hemispherical roller 150.          Roller according to claim 2, characterized in that the fastening means of the auxiliary fastening portion (Fig. 9, 102-5) is further provided on the side of the hemispherical roller 150 and the shaft nut 101,         The method according to claim 2, characterized in that the interlocking means (snap key) for preventing separation when the hemispherical roller 150 and the shaft nut 101 are coupled to the hemispherical roller 150 and the shaft nut 101 are further provided. roller.