Vehicle active rear seat cushion device
With its split seat cushion structure, the middle plate is hinged to the outer plate, and the outer plate flips to form a large support plane, which solves the problem that vehicle seat cushions cannot provide large-size support and achieves the functions of comfortable sitting and stable support for items.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN DONGWEI INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-19
AI Technical Summary
Existing vehicle seat cushions cannot provide a large support surface and lying space, and are not suitable for use in special needs scenarios.
Design a split seat cushion structure, including a base plate, a middle plate and an outer plate. The middle plate and the outer plate are hinged together. The outer plate can be flipped and supported on the floor of the carriage to form a large support plane. The middle plate is flush with the base plate. The outer plate is provided with a soft covering layer and a metal support plate to enhance stability and comfort.
When folded, it provides the function of a regular seat cushion; when unfolded, it forms a large support surface, meeting the needs of passengers for seating and storage of belongings, while also providing a comfortable reclining space.
Smart Images

Figure CN224375760U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a vehicle rear seat cushion, and more particularly to a vehicle movable rear seat cushion device. Background Technology
[0002] Vehicles used for carrying people or goods, such as cars or tricycles with a cargo compartment, generally require front and rear seat cushions. The front seat cushion provides seating for the driver, and the rear seat cushion provides seating for rear passengers. In most existing vehicles, the seat cushions are usually fixed. Due to the limited space inside the cargo compartment of tricycles, storage boxes are usually installed under the seat cushions, especially on the underside of the rear seat cushion. The rear seat cushion can be moved and tilted to the side to facilitate the access of items from the storage box.
[0003] Chinese patent document (authorization announcement number: CN201165270Y) discloses a seat structure for a side-mounted electric tricycle, including a backrest cushion assembly and a seat cushion assembly. The backrest cushion assembly is fixed to the seat frame welded together, and the seat cushion assembly is fixed to another plane of the seat frame welded together, so that the end face of the seat cushion welded together and the end face of the seat frame welded together have a certain uniform gap, ensuring that the seat cushion welded together will not interfere with the rotation after assembly. The seat frame welded together is fixed to the vehicle frame, so that when the seat cushion welded together is rotated to the horizontal position, it can be used as a seat. When rotated to the vertical position, the partition space on the seat frame welded together can be used as a storage box. It has the characteristics of novel structure, diversified functions and simple assembly.
[0004] This type of seat structure is convenient for taking and putting away items, but the seating space it provides is fixed. It is not suitable for providing a large support surface or a large reclining space for rear passengers. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a vehicle movable seat cushion device, which can provide a larger support surface by being released to meet some special needs of the vehicle during use.
[0006] To solve the aforementioned technical problem, the present invention provides the following technical solution: a vehicle movable rear seat cushion device, comprising a base, an upwardly extending backrest on the rear side of the base, and a seat cushion on the base. The seat cushion is characterized by being a split structure, comprising a base plate, a middle plate, and an outer plate. The base plate covers the upper end of the base. One side edge of the middle plate in the front-rear direction is hinged to the front side of the base. The other side edge of the middle plate in the front-rear direction is hinged to one side edge of the outer plate in the front-rear direction. The front-rear dimension of the outer plate corresponds to the height of the base.
[0007] The front-to-back direction is based on the vehicle's orientation, with the direction towards the front wheels considered the front side and the direction towards the rear wheels considered the rear side. In this rear seat cushion device, the middle panel and outer panel can be stacked on the base plate to provide seating for rear passengers. When needed, the middle panel and outer panel can be opened, with the outer panel serving as a support structure against the floor of the vehicle compartment. The middle panel and the base plate are on the same horizontal plane, thus forming a large, integrated support plane. The front-to-back dimensions of the outer panel correspond to the height of the base, generally meaning that the difference between their dimensions is small; ideally, their dimensions are equal, ensuring that the integrated support plane is horizontal. This support plane is primarily defined by the upper surfaces of the base plate and the middle panel.
[0008] Furthermore, the intermediate plate and the base plate are of equal length. This results in a well-integrated support plane, providing stable support for the placed items.
[0009] Furthermore, the middle panel and the outer panel are of the same thickness, and a soft-padded layer is provided on the outer surface of the outer panel. The soft-padded layer makes the outer panel surface soft, facilitating a comfortable seating experience. The middle panel has a relatively small thickness, thereby facilitating the stability of the outer panel when folded.
[0010] Furthermore, the lateral dimension of the outer panel is larger than that of the middle panel. This relative positioning allows the outer edge of the outer panel to protrude beyond the outer side of the middle panel, resulting in better stability of the outer panel after folding.
[0011] Furthermore, a recess is provided on the back of the outer panel to accommodate the intermediate panel. This allows the outer edge of the outer panel to abut against the upper end of the base after folding, resulting in good stability of the outer panel on the base.
[0012] Furthermore, the intermediate plate is hinged to the base and to the outer plate via hinges. The hinges allow the intermediate plate to be flush with the base plate when opened, thus forming a flat support surface.
[0013] Furthermore, metal support plates are respectively provided at both ends of the outer panel in the left and right directions, and the support plates are attached and fixed to the outer panel. The support plates are generally made of iron, and the installation of the support plates enhances the strength of the outer panel and provides stable support for the middle panel when it is opened.
[0014] Furthermore, the support plate is inverted L-shaped, with two support plates symmetrically arranged at both ends of the outer plate. This effectively improves the strength of the outer plate while reducing the amount of material used for the support plates.
[0015] Compared with existing technologies, this utility model has the following advantages: When folded, this rear seat cushion device provides a regular seat cushion for rear passengers. When a large support surface is needed, it can be opened, allowing the outer panel to rest downwards on the vehicle floor, while the middle panel is suspended. The middle panel and the base panel form a single unit, providing a large, integrated support surface for stable support of items and also providing a place for children to lie down or play. The outer panel acts as a support structure, providing stable support for the middle panel and ensuring its positional stability. This rear seat cushion device is very convenient to use, easily switching between folded and open states. Attached Figure Description
[0016] Figure 1 This is a perspective view of a portion of the rear seat cushion device in a folded state from one direction.
[0017] Figure 2 This is a perspective view of a portion of the rear seat cushion device in its folded state from another direction.
[0018] Figure 3 This is a perspective view of a portion of the rear seat cushion device in the open state.
[0019] Figure 4 yes Figure 3 Exploded view.
[0020] In the diagram, 1 is the soft cladding layer; 2 is the outer panel; 3 is the middle panel; 4 is the hinge; and 5 is the support plate. Detailed Implementation
[0021] Referring to the accompanying drawings, this retractable rear seat cushion device is installed in the vehicle, particularly on the rear side, to provide seating for rear passengers. The vehicle is typically a tricycle, but installation in a four-wheeled vehicle is not excluded.
[0022] The structure of this rear seat cushion device includes a base with a certain height, creating a seating position at a certain height at the rear of the vehicle. A backrest extending upwards is provided on the rear side of the base for the user's back to lean against. A seat cushion is provided on the base, and the seat cushion has a split structure, including a base plate, a middle plate 3, and an outer plate 2. The base plate covers the upper end of the base; the base plate can be placed directly on the upper end of the base or hinged to it. One front-rear edge of the middle plate 3 is hinged to the front side of the base, and the other front-rear edge of the middle plate 3 is hinged to one front-rear edge of the outer plate 2. The other edge of the outer plate 2 is a free end. As shown in the figure, the middle plate 3 is hinged to the base, and the middle plate 3 is hinged to the outer plate 2, both via hinges 4. Of course, other hinge structures can also be used to achieve the hinge between the corresponding plates, but compared to hinge 4, other hinge structures may have relatively poor stability and flatness of the supporting plane. The defect of poor flatness can be offset by laying soft pads on the supporting surface. The front and rear dimensions of the outer panel 2 correspond to the height of the base. In the open state, the other side edge of the outer panel 2 is used to abut against the floor of the vehicle body, and the middle panel 3 is suspended in the horizontal direction.
[0023] The intermediate plate 3 and the base plate are of equal length and the outer plate 2 are of equal thickness. A soft covering layer 1 is provided on the outer surface of the outer plate 2. The soft covering layer 1 includes elastic cotton, and leather is wrapped around the outside of the elastic cotton. The base materials of the intermediate plate 3, the base plate, and the outer plate 2 can be made of materials with a certain strength, such as plywood or rigid plastic board, so as to meet the support requirements under different usage conditions.
[0024] The outer plate 2 has a larger lateral dimension than the middle plate 3. A recess is formed on the back of the outer plate 2. The depth of the recess is adapted to the thickness of the middle plate 3. When the rear seat cushion device is in the folded state, the middle plate 3 can be accommodated in the recess, and the back of the outer plate 2 can directly abut against the upper end of the base.
[0025] To increase the strength of the outer panel 2, metal support plates 5 are respectively installed at both ends of the outer panel 2 in the left and right directions. The support plates 5 are attached and fixed to the outer panel 2. As shown in the figure, the support plates 5 are inverted L-shaped, and the two support plates 5 are symmetrically arranged at both ends of the outer panel 2.
[0026] This rear seat cushion device has two states: folded and open. In the folded state, the base plate, the middle plate 3, and the outer plate 2 are stacked together in sequence, with the soft padding layer 1 on the outer plate 2 on the top layer, where the rear passengers sit. To open the device, the rear edge of the outer plate 2 is flipped upwards. As the middle plate 3 is pulled, its rear edge flips upwards, making it flush with the base plate. The rear edge of the outer plate 2 then rests against the floor of the vehicle, thus supporting the suspended middle plate 3.
Claims
1. A retractable rear seat cushion device for vehicles, comprising a base, an upwardly extending backrest on the rear side of the base, and a seat cushion on the base, characterized in that, The seat cushion has a split structure, including a base plate, a middle plate and an outer plate. The base plate covers the upper end of the base. One side edge of the middle plate in the front-rear direction is hinged to the front side of the base. The other side edge of the middle plate in the front-rear direction is hinged to one side edge of the outer plate in the front-rear direction. The front-rear dimension of the outer plate corresponds to the height of the base.
2. The vehicle movable rear seat cushion device according to claim 1, characterized in that, The intermediate plate and the base plate are of equal length.
3. The vehicle movable rear seat cushion device according to claim 1, characterized in that, The intermediate plate and the outer plate are of the same thickness, and a soft cladding layer is provided on the outer surface of the outer plate.
4. The vehicle movable rear seat cushion device according to claim 3, characterized in that, A recess is provided on the back of the outer panel to accommodate the intermediate panel.
5. The vehicle movable rear seat cushion device according to any one of claims 1 to 4, characterized in that, The outer panel has a larger lateral dimension than the middle panel.
6. The vehicle movable rear seat cushion device according to any one of claims 1 to 4, characterized in that, The intermediate plate and the base, as well as the intermediate plate and the outer plate, are all hinged together by hinges.
7. The vehicle movable rear seat cushion device according to any one of claims 1 to 4, characterized in that, Metal support plates are provided at both ends of the outer panel in the left and right directions, and the support plates are attached and fixed to the outer panel.
8. The vehicle movable rear seat cushion device according to claim 7, characterized in that, The support plate is inverted L-shaped, and the two support plates are symmetrically arranged on both ends of the outer plate.