IP Library Granted Patent US 11,242,667
Granted Patent B2
US 11,242,667 · App. 16/546,303 · Granted Feb 8, 2022

Work vehicle including loader work device

Inventors: Hun Jung Lee (Gyeongsangnam-do, KR); Yong Woo Kim (Gyeongsangnam-do, KR)
Assignee: DAEDONG CORPORATION
E02F3/3414E02F3/3695E02F9/16
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,242,667
App. No.
16/546,303
Granted
Feb 8, 2022
Kind
B2
Abstract

Provided is a work vehicle including a cabin and a loader work device. The work vehicle includes: a vehicle main body; a main body rear; front and rear wheels; a bucket; a lifting arm connected to the bucket to lift the bucket; a boom support connected to the lifting arm; a rear link having one end coupled to a first boom support hinge part of the boom support and an opposite end coupled to a rear hinge part of the main body rear; a boom cylinder having one end coupled to a second boom support hinge part of the boom support to rotate the boom support; and a rotation link having one end coupled to a third boom support hinge part of the boom support and an opposite end coupled to a front hinge part of the vehicle main body.

Claims (16)

1. A work vehicle including a cabin and a loader work device, the work vehicle comprising:

a vehicle main body for supporting the cabin;

a main body rear disposed on a rear side of the vehicle main body;

front and rear wheels for moving the work vehicle;

a bucket for receiving a load;

a lifting arm connected to the bucket to lift the bucket up and down;

a boom support connected to the lifting arm;

a rear link having one end coupled to a first boom support hinge part formed in the boom support and an opposite end coupled to a rear hinge part formed in the main body rear;

a boom cylinder having one end coupled to a second boom support hinge part formed in the boom support to rotate the boom support such that the lifting arm rotates or moves up and down; and

a rotation link having one end coupled to a third boom support hinge part formed in the boom support and an opposite end coupled to a front hinge part formed at a front end of the vehicle main body,

wherein the one end of the boom cylinder is coupled to the second boom support hinge part, and an opposite end of the boom cylinder is directly coupled to the rear hinge part together with the rear link,

wherein a rotation center of the rear link is same as a rotation center of the boom cylinder.

2. The work vehicle of claim 1 , wherein the front hinge part is formed above the front wheel of the work vehicle, or formed vertically above between the front wheel and the rear wheel.

3. The work vehicle of claim 1 , wherein the second boom support hinge part is formed at a position higher than the third boom support hinge part, and

the second boom support hinge part is maintained at the position higher than the third boom support hinge part even when the boom support and the lifting arm rotate.

4. The work vehicle of claim 1 , wherein the boom support is partially bent or curved.

Assignments (2)
CHANGE OF NAME Recorded Nov 4, 2021
From: DAEDONG INDUSTRIAL CO., LTD.
To: DAEDONG CORPORATION
Reel/Frame 058714/0800 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2019
From: LEE, HUN JUNG; KIM, YONG WOO
To: DAEDONG INDUSTRIAL CO., LTD.
Reel/Frame 050109/0497 →
Priority Claims (1)
KR 10-2018-0101707 · Aug 29, 2018 · national
Continuity (1)
Related Publication 20200071905A1 · Mar 5, 2020