JP3016363U - Mounting structure of the soil dump plate to the power traveling machine - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain a structure for attaching an earth discharging plate to a power traveling machine, which is suitable for continuously filling back a relatively narrow long groove. [Structure] The earth discharging plate 20 is connected to two connecting contacts on the power traveling machine side by two link members 31 and 41 having different lengths so as to form a non-parallel four-joint link mechanism. The link is moved by the
The angle with respect to the traveling direction of the power traveling machine can be freely changed. [Effect] When the power traveling machine travels in parallel along the groove, the soil can be reliably backfilled in the groove, and work efficiency is significantly improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for mounting an earth discharging plate on a power traveling machine, and is particularly suitable for a case where a soil discharging plate mounted on the power traveling machine continuously backfills a relatively narrow long groove. The present invention relates to a mounting structure of an excavator plate that can be used on a power traveling machine.

[0002]

[Prior art]

 In the research such as breeding and production of new fruit tree varieties, or functional development for fruit quality, field management is important for smooth development of test research, and for this reason, test trees are replanted systematically. Is done. When performing tree replanting, first, in a field to be replanted, use a trencher to dig a long groove with a width of about 30 cm and a depth of about 40 cm, put compost in it, and then dig up the soil. Backfill once until the compost disappears. Next, the desired seedlings are planted in the backfilled long ditch, the soil is covered and the soil is leveled as required, and then watering is performed to complete the work.

Conventionally, the backfilling of the dug up soil, the covering of soil, and the ground leveling work have been performed manually by workers, but recently, from the viewpoint of labor saving, a small backhoe with a soil discharging plate has been used. Is being used.

[0004]

[Problems to be solved by the device]

 In order to effectively backfill the dug up soil into a relatively narrow long groove, the soil on the side of the groove should be continuously filled while the backfilling work machine proceeds in parallel with the groove. It is desirable that it can be moved into the groove. However, as shown in FIG. 3, the earth-discharging plate a attached to a conventionally known small backhoe V or the like is disposed at a front end or a rear end of the machine body in a direction perpendicular to the traveling direction of the machine body (direction of arrow A). It is mounted so that it can be moved only in the vertical direction by the hydraulic cylinder b, as shown by the chain double-dashed line in FIG. Therefore, when carrying out the backfilling operation into the groove, it is necessary to operate the machine body V in a direction substantially at right angles to the groove, which makes it difficult to improve work efficiency.

Therefore, an object of the present invention is to fill a relatively narrow long groove with an earth-discharging plate mounted on a power traveling machine such as a small backhoe, so that the body is not perpendicular to the groove. It is an object of the present invention to provide a structure for attaching an excavation plate to a power vehicle that enables continuous backfilling by moving in parallel, thereby greatly improving the backfilling work efficiency.

[0006]

[Means for Solving the Problems]

 According to the present invention, the above-mentioned problem is a structure for attaching the dumping plate to the power traveling machine, and the dumping plate has two connecting contacts on the power traveling machine side which function as a stationary node and has different lengths. Non-parallel four-joint link mechanism is connected by a link member of the book, and the link is made to move by a hydraulic actuator driven by power from a power traveling machine. Thus, the earth removal plate can be changed in its angle with respect to the traveling direction of the power traveling machine, which is achieved by a structure for attaching the earth discharging plate to the power traveling machine.

In a more preferred aspect of the present invention, the movement of the non-parallel four-joint link causes at least one side end of the earth scavenging plate to project laterally to a position located within a lateral width of the power traveling machine. It is movable to and from the position. As a result, soil discharge to the sides of the aircraft will be more reliable. In still another preferred aspect of the present invention, the two link members having different lengths and the two contact points on the power traveling machine side functioning as a stationary node and / or the contact point with the earth plate are provided. Is variable. As a result, it is possible to change the amount of overhang to the side of the airframe or change the overhang direction without changing the inclination angle of the soil discharge plate. There is no particular limitation on the power traveling machine, but a small backhoe is particularly advantageous from the viewpoint that the machine can perform both trenching and backfilling.

[0008]

[Work]

 According to the structure for mounting the soil discharging plate to the power traveling machine according to the present invention, the engine of the power traveling machine is driven to operate the hydraulic actuator, so that it is normally held in a posture perpendicular to the traveling direction of the machine. The excavating plate is tilted by a predetermined angle with respect to the traveling direction of the machine. In a preferred embodiment of the present invention, one side end of the soil discharging plate is positioned so as to project laterally beyond the lateral width of the power traveling machine together with the inclination.

When it becomes necessary to backfill soil in a state of being dug out by a trencher or the like and being left along the groove, such as when replanting a tree, The power traveling machine having the soil discharging plate inclined as described above is caused to travel in parallel along the groove. As a result, the soil left on the side of the groove is guided to the soil discharge plate, moves to the side of the machine, and is continuously backfilled in the groove.

The hydraulic actuator may be operated during the backfilling work, and the backfilling may be performed while changing the inclination angle of the soil discharge plate according to the amount of remaining soil, thereby further improving the work efficiency. be able to. In the attachment structure of the soil discharging plate in the preferred embodiment of the present invention, at least one side end of the soil discharging plate can be located laterally beyond the lateral width of the power traveling machine by the movement of the link. As a result, it becomes possible to carry out the backfilling work with a certain distance between the groove to be backfilled and the power traveling machine, and the work safety is improved.

Further, in a preferred aspect of the present invention, the positions of the contact points between the respective tip ends of the two link members having different lengths and the power traveling machine side and / or the soil plate side can be appropriately changed. . In this case, by appropriately selecting the position of each contact point, the earth discharging direction can be set to the right side or the left side of the traveling direction of the machine body. In addition, it is possible to change the overhang amount of the soil discharge plate to the side of the aircraft. Therefore, with this mounting state, it is possible to appropriately cope with more work environments.

[0012]

【Example】

 Hereinafter, the structure for attaching the soil discharging plate to the power traveling machine according to the present invention will be described in detail with reference to the drawings. FIG. 1 shows a state in which an earth-discharging plate is attached to the front end of a small backhoe by the attachment structure of the present invention. As shown in the figure, left and right support arms 11, 11 are rotatably supported only in the vertical direction at the front end of the small backhoe V having the endless belts 10, 10 for traveling, and at the tip thereof. The support lateral rod 12 is fixed in a state of being perpendicular to the traveling direction of the airframe. A locking projection 13 is provided upright at the center of the support horizontal rod 12, and a hydraulic cylinder 14 is interposed between the tip of the locking projection 13 and an appropriate portion on the machine side. The support horizontal rod 12 is vertically displaced. This configuration is conventionally known.

The support lateral rod 12 is a member having a rectangular cross section, and has a lateral width of the machine body, that is, a length substantially equal to or slightly shorter than the distance between the outer edges of the left and right traveling endless belts 10 and 10. A plurality of (four in the figure) through holes 15a to 15d are provided at predetermined intervals in the vertical direction. Reference numeral 20 is a commonly used earth scavenging plate, and its width is substantially equal to the length of the supporting lateral rod 12 in this embodiment. On the back surface of the soil discharging plate 20, a fastening member 21 having a substantially U-shaped cross section and a length substantially equal to the lateral width of the soil discharging plate 20 is provided. It is attached to the back surface of 20 in a welded state. The height of the fastening member 21 on the side surface side is substantially equal to the height of the support horizontal rod 12, and left and right aperture groups 22 and 23 are formed in the upper and lower end surface portions having a U-shape. There is. As shown in the drawing, each hole group has five holes 22a to 22e and 23a to 23d in this example, and the intervals between the holes in both hole groups are equal.

The supporting horizontal rod 12 and the fastening member 21 fixed to the back surface of the earth discharging plate 20 are connected by two link members 31 and 41 having different lengths. In this embodiment, each of the link members 31 and 41 is composed of two plate members, and the support horizontal rod 12 and the fastening member 21 are connected to each other with the support horizontal rod 12 and the fastening member 21 sandwiched from above and below. are doing. The two long and short link members 31 and 41 have openings at both ends. In the illustrated example, one end of the link members 31 and 41 is provided at the through holes 15a and 15c provided in the support horizontal rod 12, and at the other end. A state in which the engagement holes are rotatable by aligning the openings at the ends with the openings 22d and 23d formed in the fastening member 21 and inserting the pins 32a, 32b and 42a, 42b therethrough. Thus, the supporting horizontal rod 12 and the fastening member 21 are connected.

Therefore, there is a non-parallel four-joint link mechanism in which any two points (15a and 15c in the figure) of the through holes 15a to 15d provided in the support horizontal rod 12 function as static joints. It is formed. A locking piece 45 extending laterally from the line connecting the pins 42a and 42b is provided near the tip of the longer link member 41 on the side of the soil discharging plate 20. The other end 51 of a hydraulic cylinder 50, which is pivotally supported at one end (not shown), is pivotally supported there. Therefore, by starting the engine of the small backhoe V and operating the hydraulic motor (not shown) to drive the hydraulic cylinder 50, the two long and short link members 31 and 41 are moved to the supporting lateral rod 12 which is their stationary joint. By rotating any two of the provided through holes 15a to 15d as a fulcrum, the earth-moving plate 20 attached to the other end side of the two long and short link members 31 and 41 is moved by the rotation. It is displaced while changing the angle with respect to the direction.

Next, with reference to FIG. 2, the state of displacement of the earth discharging plate 20 will be described. FIG. 2 is a plan view drawn for explaining the movement of the link of the device shown in FIG. 1, in which the trench B is dug by a small backhoe or the like, and the dug up soil C is left along the trench B. The state in which the soil is backfilled while the power traveling machine having the structure for mounting the soil discharging plate according to the present invention advances along the groove B (in the direction parallel to the groove B) in the state of the above state. ing.

At the start of the backfilling operation, the hydraulic cylinder 50 is operated to place the earth discharging plate 20 at a position Xa parallel to the supporting horizontal rod 12 fixed to the power traveling machine side. The driver operates the hydraulic cylinder 50 in consideration of the amount of soil C to be backfilled and the distance between the groove B side end position of the soil discharge plate 20 and the groove B. The operation of the hydraulic cylinder 50 is transmitted to the non-parallel four-bar linkage through the longer link member 41 to move the link. In the illustrated example, the hydraulic cylinder 50 extends to rotate the two long and short link members 31 and 41 in the clockwise direction, so that the earth scavenging plate 20 moves as Xa → Xb →. Change Xc and its position. That is, when the displacement plate 20 gradually changes its angle with respect to the traveling direction A of the power traveling machine due to the movement of the link, the end position of the displacement plate 20 on the groove B side gradually moves in the groove B direction.

When the soil discharging plate 20 reaches a predetermined angle, the movement of the hydraulic cylinder 50 is stopped, and the power traveling machine is advanced along the groove B. The soil C left along the groove B is transferred to the side of the groove B along the inclination of the earth discharging plate 20 as the power traveling machine advances, and falls into the groove B. As described above, according to the structure for attaching the soil discharging plate to the power traveling machine according to the present invention, it is possible to continuously backfill by moving the power traveling machine in parallel along the groove, and the work efficiency is greatly improved. Rise to.

In this non-parallel four-joint link mechanism, the positions of the two connecting contacts on the power traveling machine side that function as stationary joints, the lengths of the two long and short link members, and the two long and short links on the soil discharge plate side. It will be understood that the relationship between the overhanging amount of the soil discharging plate 20 to the side of the machine and the inclination angle of the soil discharging plate can be variously changed by changing the locking position with the link member. This is the reason why a plurality of through holes 15a to 15d are formed in the supporting horizontal rod 12, and also hole groups 22a to 22e and 23a to 23d are formed in the fastening member 21 of the earth discharging plate 20, respectively. If it is desired to change only the amount of lateral projection without changing the inclination angle of the soil discharge plate 20 according to the work environment, open the tips of the two long and short link members 31, 41. The holes 22 and 23 are replaced with the positions of the holes 22b and 23b.

Further, in FIG. 2, the groove B is located on the right side in the traveling direction of the machine body, but if the groove is located on the left side, one end portion of the link member 31 in FIG. Is engaged with the through hole 15d of the supporting horizontal rod 12, the end of the link member 41 is engaged with the through hole 15b of the supporting horizontal rod 12, and the other end is engaged with one of the aperture groups 22 and 23. It becomes possible by being stopped.

Further, in the illustrated example, one end of the hydraulic actuator (hydraulic cylinder 50) for moving the link is locked to the longer link member 41, but this is done from the viewpoint of good workability. It will be understood that, depending on the arrangement around the device, it may be locked at any part of the link mechanism.

[0022]

[Effect of device]

 According to the structure for attaching the soil discharging plate to the power traveling machine according to the present invention, the soil can be continuously backfilled in the groove by moving the machine body in parallel with the groove. , Greatly improve the work efficiency of backfilling.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a structure for attaching an earth discharging plate to a power traveling machine according to the present invention.

FIG. 2 is a diagram for explaining the operation of the apparatus shown in FIG.

FIG. 3 is a view showing a conventional attachment mode of an earth discharging plate.

[Explanation of symbols]

V ... Power traveling machine, 12 ... Supporting rod, 20 ... Soil plate, 3
1, 41 ... Link members with different lengths, 50 ... Hydraulic cylinder

Continuation of the front page (72) Inventor Rikiichi Hagiwara 1383 Takaoka, Shinji-mura, Shinji-gun, Ibaraki Prefecture (72) Inventor Etsuo Narushima 4-3-2-407-204 Namiki, Tsukuba City, Ibaraki Prefecture (72) Inventor Shigeo Iwase Ibaraki Prefecture 1444-6 Oi, Kukizaki-cho, Inashiki-gun (72) Inventor Katsuhito Doi 4-10-1-905-203 Namiki, Tsukuba-shi, Ibaraki Prefecture (72) Inventor Kazumi Miyamoto 451-1 Yokohori, Chiyoda-cho, Ibaraki Prefecture (72-9) Inventor Nobuo Ushioda 424 Hosoya, Yasato-cho, Shinji-gun, Ibaraki Prefecture (72) Inventor Shin-ichi Inaba 1-11-4-205-211 Kasuga, Tsukuba City, Ibaraki Prefecture (72) Inventor, Heiyoshi Sato 1-1-1 Azuma, Tsukuba City, Ibaraki Prefecture -603-502 (72) Inventor Teruo Komatsu 120 Shishikami, Chiyoda-cho, Shinji-gun, Ibaraki (72) Inventor Takeshi Kihara 1-18-1-406-104 Azuma, Tsukuba-shi, Ibaraki

Claims (4)

[Scope of utility model registration request] 1. A structure for mounting an earth discharging plate to a power traveling machine, wherein the earth discharging plate is made up of two connecting contacts on the side of the power traveling machine that function as stationary nodes and two link members having different lengths. The parallel four-joint link mechanism is connected, and the link is moved by a hydraulic actuator driven by the power from the power traveling machine. The structure for attaching the soil dump plate to the power traveling machine is characterized in that the angle with respect to the traveling direction of the traveling machine can be freely changed. 2. The movement of the non-parallel four-joint link allows at least one side end of the earth scavenger plate to move between a position located within the lateral width of the power traveling machine and a position protruding laterally. The structure for attaching the soil discharging plate to the power traveling machine according to claim 1, wherein 3. The two link members having different lengths and the two connecting contacts on the side of the power traveling machine that function as stationary nodes and /
Alternatively, the connecting contact with the earth-discharging plate is variable, and the mounting structure according to claim 1 or 2. 4. The mounting structure according to claim 1, wherein the power traveling machine is a small backhoe.