KR-20260064057-A - Agricultural working vehicle with detachable rear door

Abstract

The work vehicle of the present embodiment is an agricultural work vehicle comprising a cabin in which a worker rides and a backhoe mounted at the rear of the cabin, wherein the cabin comprises a cabin upper frame located at the rear upper side and cabin side frames located on both rear sides, and comprises an upper door and a lower door provided at the rear of the cabin, wherein the upper door is provided with an upper door handle whose upper part is detachably coupled to the cabin upper frame and whose lower part is rotatable, and the lower door is provided with a locking hook on its upper surface that is coupled to the upper door handle and is detachably coupled to the cabin side frame.

Inventors

• 민경백

Assignees

• 주식회사 대동모빌리티

Dates

Publication Date

20260507

Application Date

20241031

Claims (5)

1. In an agricultural work vehicle comprising a cabin for a worker and a backhoe mounted at the rear of the cabin, The above cabin includes a cabin upper frame located at the rear upper side and cabin side frames located on both rear sides, and It includes an upper door and a lower door provided at the rear of the cabin, and The upper door mentioned above is, The upper part is detachably coupled to the upper frame of the cabin, and the lower part is equipped with a rotatable upper door handle, The lower door mentioned above is, An agricultural work vehicle characterized by having a hook on the upper surface that engages with the upper door handle and is detachably connected to the cabin side frame.
2. In paragraph 1, An upper door connecting bar is provided on the outer surface of the upper door, and The upper frame of the cabin is coupled with an upper frame hook portion having a hook groove into which the upper door coupling bar is seated. An auxiliary piece is rotatably connected to the upper frame hook portion above, and An agricultural work vehicle characterized by the above auxiliary member having a coupling bar pressing part that presses the upper door coupling bar to prevent detachment from the hook groove.
3. In paragraph 2, A hook hole is formed in the upper frame hook portion above, and The above auxiliary piece is equipped with an upper door detachment pin, and One end of the upper door detachment pin is detachably coupled to the hook hole, and The other end of the upper door detachment pin is provided with a detachment pin handle, An agricultural work vehicle characterized by the upper door detachment pin being inserted into and separated from the hook hole by the rotation of the detachment pin handle.
4. In paragraph 1, The above cabin side frame is equipped with a side support, and The lower door mentioned above is, A lower door fixing pin is provided at the bottom, and A lower door locking cap is provided for connection with the above-mentioned side support, and A hole is formed in the floor plate provided between the cabin and the backhoe for inserting the lower door fixing pin, An agricultural work vehicle characterized in that the lower door is detachably coupled to the floor plate after being separated from the cabin.
5. In paragraph 4, With the lower door connected to the floor plate, An agricultural work vehicle characterized by further being provided with a fixing member connecting the above-mentioned hook and the cabin floor.

Description

Agricultural working vehicle with detachable rear door The present invention relates to a cabin structure for an agricultural work vehicle, and more specifically, to a detachable door structure provided at the rear of the cabin of an agricultural work vehicle. Agricultural work vehicles are vehicles used for crop cultivation, and representative examples include combines, tractors, and rice transplanters. Combines perform the tasks of harvesting and threshing crops such as rice, barley, wheat, and soybeans. Tractors utilize traction to perform tasks necessary for crop cultivation, while rice transplanters play the role of transplanting seedlings grown in nurseries or seedling boxes into paddy fields. Agricultural work vehicles can be equipped with implements such as a backhoe at the rear, enabling various tasks including excavation and digging. Additionally, a cabin with openable windows can be installed to protect workers from rain or cold weather. Depending on weather conditions, the windows can be closed to protect the workers or opened during heatwaves. Meanwhile, existing agricultural work vehicles had the rear implement controls located outside the cabin, requiring the operator to open the window to operate them. This process caused interference between the window and the controls, and since the window could only be opened after the position of the controls was adjusted to resolve the issue, it was inconvenient to use. (Patent Document 1) KR 10-2023-0012421 A Conventional agricultural work vehicles featured a rear cabin consisting of a single integrated door, or even if equipped with vertically separated doors, they were designed in a way that prevented them from being detached. Consequently, when an operator sat facing the rear to perform backhoe operations, the rear cabin door obstructed their view or restricted their workspace. Figure 1 is a drawing showing the overall appearance of the agricultural work vehicle of the present invention. FIGS. 2 and FIGS. 3 are drawings illustrating the rear door of the present embodiment as viewed from inside the cabin. FIGS. 4 and FIGS. 5 are drawings illustrating the rear door of the present embodiment as viewed from outside the cabin. FIGS. 6 to 11 are drawings for showing the process of separating the rear upper door of the present embodiment from the upper frame of the cabin. FIGS. 12 to 14 are drawings for explaining the process of removing the rear lower door according to the present embodiment. FIGS. 15 to 17 are drawings for explaining how to mount a removed rear lower door on the rear lower side of the cabin. FIG. 18 is a drawing showing a case where the rear lower door is installed on the floor plate between the cabin and the backhoe according to the present embodiment. Hereinafter, the present embodiment will be examined in detail with reference to the accompanying drawings. However, the scope of the inventive concept of the present embodiment may be determined from the matters disclosed in the present embodiment, and the inventive concept of the present embodiment shall be understood to include variations in implementation such as the addition, deletion, or modification of components with respect to the proposed embodiment. The suffixes "module" and "part" used in descriptions related to the present invention are assigned or used interchangeably solely for the ease of drafting the specification, and do not inherently possess distinct meanings or roles. Figure 1 is a drawing showing the overall appearance of the agricultural work vehicle of the present invention. Referring to FIG. 1, the agricultural work vehicle (1) of the embodiment includes a cabin (3) which is a space for a worker to ride in, and a backhoe (2) which is a work tool mounted at the rear of the cabin (3), and a rear upper door (10) and a rear lower door (20) are configured at the rear of the cabin (3). A rear lower door (20) is positioned below the rear upper door (10), and the rear upper door (10) and the rear lower door (20) can be removed by a worker as needed. When these rear doors (10, 20) are removed, the worker can tilt the chair inside the cabin (3) to look towards the rear and sit down, and then operate the backhoe (2). Hereinafter, the detachable configuration of the rear doors (10, 20) according to the present embodiment will be described in detail. Although glass windows and doors are configured at the front and on both sides of the cabin (3), the detachable configuration of the rear upper door and rear lower door constituting the rear door will be described. In the following description, even if referred to as upper door and lower door, this refers to the rear upper door (10) and the rear lower door (20). FIGS. 2 and FIGS. 3 are drawings showing the rear door of the present embodiment as viewed from inside the cabin, and FIGS. 4 and FIGS. 5 are drawings showing the rear door of the present embodiment as viewed from outside the cabin. Also, FIGS. 6 to 11 are drawings for sho