WO2015119370A1

WO2015119370A1 - Folding device for rake

Info

Publication number: WO2015119370A1
Application number: PCT/KR2014/011957
Authority: WO
Inventors: 박석민
Original assignee: 박석민
Priority date: 2014-02-07
Filing date: 2014-12-05
Publication date: 2015-08-13
Also published as: KR101395597B1

Abstract

The present invention relates to a folding device for a rake, the device comprising: a main frame, on two edges of which are respectively hinge-coupled a protecting frame for protecting a collecting member, and a guide frame on which an alignment guide is mounted; and a folding means which is provided on the main frame and incorporates a cylinder for linking the protecting frame and the guide frame by means of respective wires so as to cause same to simultaneously effect a rotating action.

Description

Folding device for lawnmowers

The present invention relates to a folding device for a lawnmower, and more particularly, a folding device for a lawnmower for smoothly folding a work frame installed on both sides of the main body frame for movement on a narrow farmland or road after weeding. Relates to a device.

A grass weeder is a machine that gathers straw or bare grasses of crops laid down on farmland such as paddy fields so that they can be wrapped or banded to a certain size. It is moved while moving.

The main body frame is installed in the center of the installation and the protective frame provided for the protection of the worker and the outside by the collecting member to collect the straw while rotating in the center, and the guide frame equipped with the alignment guide for aligning straw For weeding work on arable land, the work is progressed to be installed wider than the width of the tractor, which is usually the driving means. When the work is completed, the protective frame and the alignment frame are folded and moved to reduce the width when moving on the arable land or road.

The conventional folding method of the lawn harvester was used so that the operator lifts the protective frame and the alignment frame by hand directly. However, due to the weight of the frame mainly made of metal material, the need for a mechanically operated structure has emerged.

Thus, as an example, Patent No. 10-1018288 discloses a pair of main body frames that perform a weeding operation while an arm with a plurality of hooks radially rotates, a support frame supporting the main body frame, and a connection link connected to the support frame. A lawnmower is disclosed that is mounted in front of a configured mobile work vehicle, and as another example, Korean Patent No. 10-0285286 discloses a lawnmower with a radial bearing attached around a rotor and a pivotable fodder arm installed on the bearing.

However, in the above techniques, the weeding device is configured to individually drive the rotatable arm. For this reason, two control means are required to control the rotation of the arms installed on both sides by using the driving device, thereby increasing the installation cost and increasing the size of the device.

In addition, when the two control means are used, simultaneous operation control is almost impossible due to the characteristics of the hydraulic structure, making it difficult to match the timing of folding on both sides.

The present invention has been invented to solve the problems of the prior art as described above, both sides of the simultaneous operation so as to be able to smoothly fold the work frame installed on both sides of the main frame for movement on a narrow farmland or road after weeding work It is an object of the present invention to provide a folding device for a lawnmower having a possible folding means to simultaneously control the rotational operation of the working frames installed on both sides of the main frame.

In order to achieve the above object, the present invention provides a protective frame for protecting the collecting member, a guide frame equipped with an alignment guide is hinged at both ends, is installed on the body frame, the protective frame and It provides a folding device for the lawnmower comprising a folding means consisting of a cylinder for connecting the guide frame with a wire to rotate at the same time.

The folding device for a lawnmower according to the present invention made as described above has the effect of improving the mechanical operability and quality by enabling the rotation control of the protective frame and the alignment frame installed on both sides of the main body frame using the folding means at the same time. .

Particularly, when a bidirectional cylinder installed horizontally is used, not only can the rear view be sufficiently secured, but both cylinder rods are rotated even if only one cylinder rod is operated. Simultaneous operation can increase the rotation distance of both frames by 2 to 4 times compared to the moving distance of the cylinder rod, thereby minimizing the operation of the cylinder, and also has the effect of making the cylinder compact.

1 is a plan view of a folding device for lawnmowers according to the present invention

Figure 2 is a plan view showing a wire connection state to the protective frame and the guide frame respectively according to the present invention

Figure 3 is a plan view showing a state before, after connecting the wire to the folding means according to the present invention

Figure 4 is a front view showing a connection state and an operating state by the folding means according to the present invention

Figure 5 is a partial perspective view showing a wire connection state of the rotary roller portion installed on the cylinder rod according to the present invention

Figure 6 is a front view showing the interlocking state of the frame during the individual operation of the cylinder rod on both sides according to the present invention

7 and 8 are a front view showing a connection state and an operating state of the folding means according to another embodiment of the present invention

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to Figures 1 to 8, the folding device for the lawnmower according to the present invention is a guide frame on which the protective frame 10 and the alignment guide 22 to protect the collecting member 7 on the body frame 30 It is provided with a folding means 40 to rotate the 20 to be foldable.

The main body frame 30 is connected to the rear side of the drive means 2, such as a tractor, as shown in Figure 1 is moved by a connecting rod (4), such as straw, barley grass, etc. The collecting member 7 is equipped with a plurality of rotating tables 9 attached with a collecting blade 8 at the center to collect a pile, and on one side, protection of the worker and the outside due to the rotation of the collecting member 7. And, the protective frame 10 is provided for the self-protection of the collecting member (7), the other side of the guide frame 20 is equipped with an alignment guide 22 for aligning the straw collected by the collecting member (7) Is provided.

The collecting member 7 is installed to be rotated on the lower side of the center on the main frame 30, the protective frame 10 on the mounting table 32 formed on the main frame 30 to implement the folding structure of the present invention. Are combined into a hinged structure.

On the other hand, the alignment guide 22 is formed in the form of a blocking member made of plate, cloth, vinyl, etc. and is connected to the guide frame 20 performs a function of aligning the straw moved through the collecting member (7), the guide Frame 20 is coupled to the hinge structure on the mounting table 32 formed on the body frame 30 to implement a folding structure.

At this time, the hinge structure is to be implemented as a pin or bolt (6) structure in the drawings, the mounting table 32 is to be installed in the orthogonal direction in front and rear of the reference table 31 installed in the moving direction of the main frame 30. It was.

As such, the protective frame 10 and the guide frame 20 are located in opposite directions to each other.

The protective frame 10 and the guide frame 20 is located outside the collecting member 7 to be used in a wider than the width of the drive means 2 when used in arable land, as shown in FIG. Moving farm roads or roads including unbalanced and narrow farmland in a state may not only cause damages and accidents due to collisions, but also interfere with other moving vehicles or pedestrians.

In order to overcome this problem, the protective frame 10 and the guide frame 20 are hinged to be configured to be folded at both ends of the body frame 30, respectively.

In addition, the cylinder connecting the protective frame 10 and the guide frame 20 on the body frame 30 with

wires

71 and 72, respectively, to control the rotation of the protective frame 10 and the guide frame 20, respectively. A folding means 40 composed of 50 is provided.

4 and 5, the cylinder 50 is provided with

cylinder rods

51 and 55 to be operated in both horizontal directions to the protective frame 10 and the guide frame 20, respectively. In this case, the cylinder 50 may constitute two cylinders 50 in which the

cylinder rods

51 and 55 operate in opposite directions to operate in both directions, but use one hydraulic path for stable supply of hydraulic pressure. It is preferable to use a bidirectional cylinder.

And the cylinder 50 is installed in a horizontal configuration to ensure a sufficient view of the rear side.

Further, in order to achieve the present invention, the

rotary rollers

53 and 57 are provided at each end of the

cylinder rods

51 and 55 on both sides to facilitate frictional movement of the

wires

71 and 72. The

rotary rollers

53 and 57 are rotatably installed by the

bolts

62 and 162 and the

nuts

63 and 163 in the

protective devices

61 and 161 as shown in FIGS. 3A and 5.

When the

cylinder rods

51 and 55 operate and move, the

wires

71 and 72 moved on the

rotary rollers

53 and 57 of the

cylinder rods

51 and 55 are located at both sides of the

cylinder rods

51 and 55. Therefore, the

cylinder rods

51 and 55 are doubled about twice the travel distance. Therefore, even if the cylinder rods (51, 55) to operate a little, it is possible to ensure a sufficient rotation distance of the protective frame 10 and the guide frame (20) connected to the wire (71, 72). This can minimize the operation of the cylinder rods (51, 55).

Then, the wire 71 connected to the protective frame 10 and the wire 72 connected to the guide frame 20 are adjacent to each other via the

rotary rollers

57 and 53 on the

cylinder rods

55 and 51 located on opposite sides, respectively. It is configured to be fixed on the cylinder rod (51, 55) located in.

In more detail, as shown in FIGS. 2A and 3, the wire 71 connected to the protection frame 10 is a rotary roller (1) on the cylinder rod 55 on the side of the guide frame 20 opposite thereto. On the cylinder rod 51 on the side of the protective frame 10, which is near the side, passes through the lower surface of the movement holding pin 105 and the movement holding hole 102 installed on the lower side of the cylinder 50 via 57). It is fixed. At this time, the

movement holding pins

105 and 101 are symmetrically installed on both sides of the cylinder 50, and the

movement holding holes

106 and 102 are formed at each end side of the

movement holding pins

105 and 101. This structure is to avoid tangling each other in the process of crossing both wires (71, 72).

And the lower end of the movement holding pin 105 and the end of the wire 71 via the movement holding hole 102 is knotted and fixed to the fixture provided on the cylinder rod 51. At this time, the fixture is formed as a structure of the bolt 65 and the plurality of nuts (54,66) as an example, and adopted a method of fixing the wire 71 in the spaced space of the plurality of nuts (54,66) on the bolt (65). .

On the contrary, as shown in FIGS. 2B and 3, the wire 72 connected to the guide frame 20 passes through the rotating roller 53 on the cylinder rod 51 on the side of the protective frame 10 on the opposite side. After passing through the lower surface of the movement holding pin 101 and the movement holding hole 106 installed on the lower side of the cylinder 50 is fixed on the cylinder rod 55 on the side of the guide frame 20 near.

At this time, the end of the wire 72 is knotted and fixed to a fixture installed on the cylinder rod 55, the fixture is formed in the structure of the bolt 165 and the plurality of nuts (154, 166) as described above.

4 and 6, friction between the

wires

71 and 72 is between the ends of the

wires

71 and 72 connected to the protective frame 10 and the guide frame 20 and the

rotary rollers

57 and 53. The

tension holding rollers

91 and 95 are further provided to facilitate the operation and maintenance of the protective frame 10 and the guide frame 20 in a folded state while easily maintaining the movement.

At this time, the tension holding rollers (91, 95) should be installed at a position higher than the ends of the wires (71, 72) fixed to the rotating rollers (53, 57) and the protective frame (10) and the guide frame (20), tension The holding

rollers

91 and 95 are installed to be height-adjustable on the

position adjusters

92 and 96 installed on the body frame 30. As an example, in FIG. 4 and FIG. 6, a plurality of fixing

holes

93 and 97 are formed on the

position adjusters

92 and 96 to fix the

tension holding rollers

91 and 95 at a desired height.

In addition, although not shown, it is formed of a screw structure so that the height can be adjusted to the wire (71, 72) mounted state on the tension holding rollers (91, 95) can be implemented to finely adjust the height when the operator rotates the handle. .

Operation of the folding device for the lawnmower of the present invention described above is as follows.

In the state in which the protective frame 10 and the guide frame 20 installed at both sides are horizontally positioned as shown in (a) of FIG. 4, when the cylinder 50 is operated as shown in (b) of FIG. 4, the cylinder ( The protective frame 10 and the guide frame 20 are folded while being rotated toward the main body frame 30 by the

cylinder rods

51 and 55 which are moved at both sides of the 50.

Referring to the principle of operation according to the present invention in more detail, as shown in Figure 6 (a) the cylinder rod on the side of the guide frame 20 is connected to the wire 71 fixed to the protective frame 10 Even if only 55 acts, the wire 72 fixed to the guide frame 20 is fixed on the cylinder rod 55, so the effect of pulling the wire 72 is generated. Rotate simultaneously with 10). In this case, the rotation distance of the guide frame 20 is smaller than that of the protection frame 10.

However, since the cylinder rod 51 operated on the opposite side of the guide frame 20 is operated simultaneously, the rotation distances are mutually corrected to maintain the same rotation distance. Due to this operation and the operation of the

cylinder rods

51 and 55 described above, the rotation distances of the two protective frames 10 and the guide frame 20 are increased by 2 to 4 times as compared with the movement distance of the

cylinder rods

51 and 55. Therefore, it is possible to minimize the operation of the bi-directional cylinder 50, this also enables the compact production of the bi-directional cylinder (50).

The above description and illustrated state show a case where the

cylinder rods

51 and 55 installed on both sides of the cylinder 50 receive the same hydraulic pressure and operate the same. However, even if the same hydraulic pressure is not applied to the

cylinder rods

51 and 55 on both sides, the same operating state can be realized due to the above operation principle.

Meanwhile, as another embodiment, the cylinder 50 may be configured as an upright cylinder 190 provided with a cylinder rod 192 that is operated up and down in the vertical direction as shown in FIG. At this time, the wire (71, 72) is configured to be connected in both directions on the cylinder rod 192, as shown in Figure 7 (b) as the cylinder rod 62 ascends to both sides of the main frame 30 The hinge-coupled protective frame 10 and the guide frame 20 can be rotated at the same time.

As shown in FIG. 8, rotary rollers 151 and 152 are provided at the ends of the cylinder rod 192 to facilitate friction movement of the

wires

71 and 72, and the wires 71 pass through the rotary rollers 151 and 152. When the end of the 72 is fixed on the cylinder 50, the rotation of both of the protective frame 10 and the guide frame 20 relative to the moving distance of the cylinder rod 192 as in the horizontal cylinder 50 described above The distance may be increased by about 2 to 4 times.

At this time, the ends of the

wires

71 and 72 via the rotary rollers 151 and 152 are knotted and fixed to the finishing holes 157 and 158 formed on the cylinder 50, and the rotary rollers 151 and 152 are connected to the ends of the cylinder rod 192. The bolt 155 and the nut 156 are rotatably installed on the provided bracket 154.

As described above, the present invention has been described in detail by using a preferred embodiment, but the scope of the present invention is not limited to the specific embodiment, it should be interpreted by the appended claims. In addition, those of ordinary skill in the art that various modifications can be made without departing from the scope and spirit of the present invention.

By using a bi-directional cylinder installed horizontally, not only can the rear view be sufficiently secured, but also the moving distance of the cylinder rod is adopted by adopting the structure that both frames are rotated even if only one cylinder rod is operated. In comparison, the rotation distance of both frames can be increased by 2 to 4 times to minimize the operation of the cylinder, and also to make the cylinder compact.

Claims

A protective frame 10 for protecting the collecting member 7 and a guide frame 20 on which the alignment guide 22 is mounted, the main frame 30 being hinged at both ends;

A folding means (40) installed on the main body frame (30), the protective frame (10) and a guide frame (20) connected by wires (71, 72), respectively, and configured to rotate in a cylinder (50); Folding device for the lawnmower, characterized in that comprises a.
The method of claim 1,

The cylinder 50 is provided with cylinder rods 51 and 55 so as to operate in both horizontal directions, respectively, and rotating rollers to facilitate friction movement of the wires 71 and 72 at each end of the cylinder rods 51 and 55. Folding device for a lawnmower having 53, 57 so that the movement distance of the wire (71, 72) is doubled by the operation of the cylinder rod (51, 55).
The method of claim 2,

The house (71, 72) is fixed on the cylinder rod (51, 55) located on the adjacent side via the rotary roller (57, 53) on the cylinder rod (55, 51) located on the opposite side, respectively Initial folding device.
The method of claim 3,

Tweezers characterized in that it further comprises a tension holding rollers (91, 95) between the ends of the wires (71, 72) connected to the protective frame (10) and the guide frame (20) and the rotating rollers (57, 53) Folding device for.
The method of claim 4, wherein

The tension holding rollers (91,95) is a folding device for the lawnmower, characterized in that the height adjustment is installed on the position adjusters (92,96) installed on the body frame (30).
The method of claim 1,

The cylinder 50 is composed of an upright type cylinder rod 192 is installed to be elevated in the vertical direction,

Rotating rollers 151 and 152 are provided at the ends of the cylinder rod 192 to facilitate friction movement of the wires 71 and 72, and the ends of the wires 71 and 72 via the rotating rollers 151 and 152 are cylinders. Folding apparatus for the lawnmower, characterized in that fixed to 50.