KR-20260064955-A - DOOR STEP APPARATUS

Abstract

The present invention relates to a door step device comprising a step portion that moves between a first position and a second position, a first frame portion provided on one side of the step portion, a second frame portion spaced apart from the first frame portion and provided on the other side of the step portion, and a driving portion that drives at least one of the first frame portion and the second frame portion so as to move the step portion between the first position and the second position.

Inventors

• 윤성훈
• 양봉진

Assignees

• (주)프리모

Dates

Publication Date

20260508

Application Date

20241030

Claims (15)

1. A footrest that moves between a first position and a second position; A first frame portion provided on one side of the above-mentioned footrest portion; A second frame portion spaced apart from the first frame portion and provided on the other side of the footrest portion; and A door step device comprising: a driving unit that drives at least one of the first frame unit and the second frame unit so that the step unit moves between the first position and the second position.
2. In paragraph 1, the first frame part is, A first fixed member having a first fixed hinge portion and a second fixed hinge portion; A first movable member connected to the above-mentioned footrest and having a first footrest hinge part and a second footrest hinge part; One side is connected to the first fixed hinge portion and the other side is connected to the first footrest hinge portion, and a first link member that performs hinge movement around the first fixed hinge portion and the first footrest hinge portion; and A door step device characterized by comprising: a second link member, one side of which is connected to the second fixed hinge part and the other side of which is connected to the second step hinge part, and which performs hinge movement around the second fixed hinge part and the second step hinge part.
3. In paragraph 2, A door step device characterized in that the above-mentioned first fixing member is installed on an object.
4. In paragraph 2, the second frame part is, A second fixed member having a third fixed hinge portion and a fourth fixed hinge portion; A second movable member connected to the above footrest and having a third footrest hinge part and a fourth footrest hinge part; A third link member having one side connected to the third fixed hinge portion and the other side connected to the third footrest hinge portion, and hinge-moving around the third fixed hinge portion and the third footrest hinge portion; and A door step device characterized by comprising: a fourth link member, one side of which is connected to the fourth fixed hinge part and the other side of which is connected to the fourth footrest hinge part, and which performs hinge movement around the fourth fixed hinge part and the fourth footrest hinge part.
5. In paragraph 4, A door step device characterized in that the first link member and the third link member have the same shape.
6. In paragraph 4, A door step device characterized in that the second link member and the fourth link member have the same shape.
7. In paragraph 4, A door step device characterized in that, based on a virtual horizontal line, the first fixed hinge part is positioned below the second fixed hinge part, and the first step hinge part is positioned above the second step hinge part.
8. In paragraph 4, A door step device characterized in that when the step portion is in the second position, the straight distance between the first fixed hinge portion and the first step hinge portion is shorter than the straight distance between the second fixed hinge portion and the second step hinge portion.
9. In paragraph 4, A door step device characterized in that when the step portion is in the second position, the straight distance between the third fixed hinge portion and the third step hinge portion is shorter than the straight distance between the fourth fixed hinge portion and the fourth step hinge portion.
10. In paragraph 4, the second link member is, A second-1 link portion extending from the second fixed hinge portion; and A door step device characterized by having a second-2 link portion that extends downward at a different angle from the second-1 link portion with respect to a virtual horizontal line in the second-1 link portion.
11. In Paragraph 10, A door step device characterized in that when the step portion is in the second position, the second-1 link portion extends in the same direction as the first link member and is supported by the first link member.
12. In Paragraph 10, A door step device characterized by the first link member further having a stop portion formed to protrude in the direction of the second link member.
13. In any one of paragraphs 1 through 12, A door step device characterized in that the above-described driving unit drives only the first frame part and is not directly connected to the second frame part.
14. In any one of paragraphs 1 through 12, A door step device characterized in that the above-described driving unit comprises a power transmission member that transmits power to the first frame unit.
15. In any one of paragraphs 1 through 12, A door step device characterized in that the first frame part and the second frame part have the same structure and the same shape.

Description

Door Step Apparatus The present invention relates to a door step device. Generally, buses and vans have high bodies, which means there is a significant height difference between the ground and the doors, causing inconvenience for children, the elderly, and the disabled when boarding and alighting. Furthermore, safety accidents have frequently occurred due to the high body. To prevent these problems, recently, an auxiliary step device equipped with a step of a specific shape is deployed by a drive motor at the bottom of the door where children board, providing safety and convenience for children, the elderly, and the disabled when boarding and alighting. However, in the case of the auxiliary step, one side of the step is not fixed when unfolded, so there is a lot of shaking during boarding and alighting, and passengers may fall due to this shaking. The background technology of the present invention is disclosed in Korean Utility Model Registration No. 20-0492600 (Registered on Nov. 04, 2020; Title of invention: Automatic footrest system for vehicles). The information described above disclosed in the background technology of this invention is intended only to enhance understanding of the background of the present invention and may therefore include information that does not constitute prior art. The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description of the invention provided below; therefore, the present invention should not be interpreted as being limited only to the matters described in such drawings. FIG. 1 is a perspective view showing a door step device according to one embodiment of the present invention in a folded state. FIG. 2 is a perspective view illustrating the first frame part and the footrest part in a folded state of a door footrest device according to one embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating the first frame portion and the footrest portion in a folded state of a door footrest device according to one embodiment of the present invention. FIG. 4 is a perspective view illustrating a state between a folded state and an unfolded state of a door step device according to one embodiment of the present invention. FIG. 5 is a perspective view illustrating a first frame part and a footrest part located between a folded state and an unfolded state of a door footrest device according to one embodiment of the present invention. FIG. 6 is a cross-sectional view illustrating the first frame part and the footrest part of a door footrest device according to one embodiment of the present invention in a state between a folded state and an unfolded state. FIG. 7 is a perspective view illustrating a door step device according to one embodiment of the present invention in an unfolded state. FIG. 8 is a perspective view illustrating the first frame part and the footrest part in an unfolded state of the door footrest device according to one embodiment of the present invention. FIG. 9 is a cross-sectional view illustrating the first frame part and the footrest part in an unfolded state of the door footrest device according to one embodiment of the present invention. FIG. 10 is an exploded perspective view illustrating a part of the configuration of the first frame part and the footrest part according to one embodiment of the present invention. FIG. 11 is a drawing showing a state in which an external force is applied to a door step device according to an embodiment of the present invention. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention. Accordingly, the embodiments described in this specification and the configurations illustrated in the drawings are merely some of the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention; therefore, it should be understood that various equivalents and modifications capable of replacing them may exist at the time of filing this application. Additionally, as used herein, “comprise, include” and/or “comprising, including” specify the presence of the mentioned features, numbers, steps, actions, parts, elements, and/or groups thereof, and do not exclude the presence or addition of one or more other features, numbers, actions, parts, elements, and/or groups. Additionally, to aid in understanding the invention, the attached dr