Folding sheet cushion with tray function

Abstract

The present invention aims to provide a foldable seat cushion having a tray function, which can secure a tray area for storing documents and small items in the interior space of a vehicle with a small luggage space when unfolded, and can function as a seat cushion when folded up. 【Means for Solving the Problem】 The present invention is a foldable cushion having a tray function and used by being placed on the seat surface of a vehicle seat. It is composed of a bottom portion, a side wall portion, and a front portion, each of which covers a core material and a cushion material with a cover. The bottom portion, the side wall portion, and the front portion are connected via a folding portion. When folded, a cushion portion is formed on the upper surface, and when unfolded, the side wall portion and the front portion rise up to adopt a configuration having the tray function for storing documents and small items.

Description

Technical Field

[0001] The present invention relates to the technology of foldable sheet cushions. More specifically, it relates to the technology of foldable cushions with a tray function, where when the folded wall part is unfolded, it becomes a tray for storing documents and small items, and when the wall part is folded, it can be used as a cushion.

Background Art

[0002] Automobile seat cushions are functional cushions that support parts such as the buttocks, waist, and neck that are loaded on the driver during driving. By dispersing the pressure due to body weight and assisting in maintaining the correct sitting posture, they reduce the burden on local areas such as the buttocks, waist, and neck during driving.

[0003] Although driving a vehicle is not a strenuous activity, since the posture of sitting for a long time continues, fatigue accumulates in various parts of the body unconsciously. Fatigue during driving is largely due to poor blood circulation caused by "muscle tension" to maintain the same posture and fatigue. This is the same for the passenger seat and is caused by factors such as the shape of the seat and cushion performance. In particular, many seats in light trucks that prioritize cost reduction are not very comfortable to ride in.

[0004] Therefore, in such cases, it is considered to use an automobile seat cushion. By using such an automobile seat cushion, the burden on the body can be reduced, and comfortable driving can be achieved. Also, it is effective in preventing "careless driving" where one's attention is distracted by body pain. For these reasons, automobile seat cushions have been improved on the premise that people can sit comfortably.

[0005] In light cars, compact cars, and trucks, seats are not given complex support shapes and flat, inexpensive seats are used in order to reduce weight and costs. Looking at the average occupancy rate of automobiles on weekdays in Japan, it is only 1.33 people (according to the Ministry of Land, Infrastructure, Transport and Tourism in 2024), so it is thought that the back seats are hardly used, and the passenger seat is also rarely used.

[0006] In particular, in commercial vehicles and light trucks, the passenger seat is often empty, and the passenger seat is often used as a place to put things. Therefore, the passenger seat cushion is often used as a place to put luggage when not in use, even though it is not designed for putting things.

[0007] Furthermore, in the case of light trucks, there is no back seat or luggage space, so there is almost no space in the passenger compartment to store documents or small items, and documents must be folded to be placed in the dashboard or console box, which is inconvenient for many people. Also, if you put a lunch box purchased at a convenience store on the seat, it will slide off when the car accelerates, decelerates, or turns, and if you hang the bag from the headrest, it will tilt or swing, which is inconvenient. There is also the problem that documents and small items left on the passenger seat will scatter around the feet when the car accelerates, decelerates, or turns, making it unsafe, and is an issue that must be resolved.

[0008] Therefore, there is a need for a technical proposal that creates a space that can function as a briefcase or tray to store documents and small items within the limited space of the car's interior without interfering with driving.

[0009] Therefore, various technical proposals have been made in the past. For example, a technology with the invention name of "Knee Rest Storage Box with Cushion" has been disclosed (see Patent Document 1). Specifically, "The object of the present invention is to provide an integrated combination of a cushion, a pillow, a futon, etc. with daily-use items such as a storage box with an opening and closing function for storing valuable items, a flat board, and a flat tray, which rationally combines a sense of relaxation and convenience." As a solution, "The present invention adheres an opening and closing storage box 2 to a cushion body 1, the storage box is made to be openable and closable, its lid can also be used as a bookstand, and work can be done on the upper surface of the storage box, and a cup holder is also provided inside the storage box to prevent cups, etc. from falling during eating and drinking, so it is excellent in rationality." The invention described in Patent Document 1 has common technical means for solving problems with the present invention in that it provides a space for storing small items inside daily necessities such as a pillow or a cushion. However, in the technology described in Patent Document 1, when used as an automobile seat cushion, problems such as the seat surface becoming too high will occur.

[0010] In addition, a technology with the invention name of "Vehicle Seat" has also been disclosed (see Patent Document 2). Specifically, "In a vehicle seat, the problem is to improve the boarding and alighting performance." As a solution, "The vehicle seat 10 includes a seat cushion 1A provided adjacent to the boarding and alighting opening of the vehicle, and a handrail member 2 having a rod-shaped handle portion 2a. The handrail member 2 can be switched between a stored state stored in the seat cushion 1A and a protruding state protruding from the seat cushion 1A toward the boarding and alighting opening side." This invention has been made public and is a known technology. However, the technology described in Patent Document 2 uses the seat portion of an automobile seat and adopts a configuration in which a storage tray is accommodated in this portion, which inhibits functions such as the resilience and riding comfort originally possessed by the seat. In contrast, the present invention has a difference in that by adopting a configuration with a fastener, the cushioning property and hold property can be freely adjusted.

Prior Art Documents

Patent Documents

[0011] [Patent Document 1] Utility Model Registration No. 3080810 [Patent Document 2] Japanese Patent Application Laid-Open No. 2018-144547 [Summary of the Invention] [Problems to be Solved by the Invention]

[0012] The present invention aims to provide a foldable seat cushion having a tray function that can secure a tray area for storing documents and small items in the interior space of a vehicle with a small luggage space by being unfolded, and on the other hand, can function as a seat cushion by being folded when a person sits and uses it. [Means for Solving the Problems]

[0013] The present invention is a foldable cushion having a tray function and used by being placed on the seat surface of a vehicle seat, which is composed of a bottom portion, a side wall portion, and a front portion, each of which covers a core material and a cushion material with a cover. The bottom portion, the side wall portion, and the front portion are connected via a folding portion, and by folding, a cushion portion is formed on the upper surface, and by unfolding, the side wall portion and the front portion rise up to adopt a configuration having the tray function for storing documents and small items.

[0014] Further, the present invention can also adopt a configuration in which a fastener enabling replacement or increase / decrease of the cushion material provided inside is provided on the cover in any one of or a combination of the bottom portion, the side wall portion, and the front portion of the cushion portion.

[0015] Further, the present invention can also adopt a configuration in which a displacement preventing member for preventing displacement is adhered to the seat surface side of the bottom portion.

[0016] In addition, the present invention can also adopt a configuration in which a holding member is provided at the bottom for being sandwiched and held in the gap between the rear end of the seat of the seat and the lower end of the backrest.

Advantages of the Invention

[0017] According to the foldable seat cushion having a tray function according to the present invention, by unfolding, a tray area for accommodating documents and small items can be secured in the interior space of a vehicle with a small luggage space. On the other hand, by folding it, it exhibits an excellent effect of being able to function as a seat cushion.

[0018] In addition, in the foldable seat cushion having a tray function according to the present invention, when a configuration is adopted in which fasteners for enabling replacement or increase / decrease of the cushioning material provided inside are provided on the cover at the bottom, side wall portion, and front portion, it exhibits an excellent effect of being easily adjustable so as to have the hardness preferred by the user.

[0019] In addition, in the foldable seat cushion having a tray function according to the present invention, when a configuration is adopted in which a displacement prevention member for preventing displacement is attached to the seat surface side of the bottom, it exhibits an excellent effect of preventing the seat cushion from falling off or shifting from the seat surface of the seat.

[0020] In addition, in the foldable seat cushion having a tray function according to the present invention, when a configuration is adopted in which a holding member for being sandwiched and held in the gap between the rear end of the seat of the seat and the lower end of the backrest is provided at the bottom, it exhibits an excellent effect of preventing the seat cushion from falling off or shifting from the seat surface of the seat.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0022] The foldable seat cushion having a tray function according to the present invention is a foldable cushion having a tray function and used by being placed on the seat surface of a vehicle seat. It is composed of a bottom portion, a side wall portion, and a front portion in which a core material and a cushion material are respectively covered with covers. The bottom portion, the side wall portion, and the front portion are connected via a folding portion, and by folding, a cushion portion is formed on the upper surface, and by unfolding, the side wall portion and the front portion rise, and the maximum feature is that it has the tray function for accommodating documents and small items. Hereinafter, each configuration will be described with reference to the drawings. However, it is not limited to the shapes and configurations shown in the related drawings, and can be changed within the range where the effects obtained as the creation of the technical idea of the present invention can be exhibited.

[0023] FIG. 1 is a perspective view for explaining the basic configuration of the foldable seat cushion 1 having a tray function according to the present invention. FIG. 1(a) shows a state in which the side wall portion 40 and the front portion 50 rise via the folding portion 60 and the tray function is exhibited, and FIG. 1(b) shows a state in which the side wall portion 40 and the front portion 50 are folded via the folding portion 60 and a cushion portion 70 is formed on the upper surface.

[0024] FIG. 2 is an explanatory view of a usage state for explaining a state in which the tray function according to the present invention is exhibited. As shown in the drawing, it is a state in which the foldable seat cushion 1 having the tray function according to the present invention is placed on the seat of an automobile, and shows a state in which the tray function is exhibited. By raising the front portion 50 and the side wall portion 40, documents and small items accommodated in the tray can be prevented from falling even when the automobile is accelerating, decelerating, or turning.

[0025] FIG. 3 is an explanatory view of a usage state showing a state in which the cushion portion according to the present invention is formed. As shown in the drawing, it is a state in which the foldable seat cushion 1 having the tray function according to the present invention is placed on the seat of an automobile, and shows a state in which the cushion portion 70 is formed on the upper surface.

[0026] The foldable seat cushion 1 having a tray function is a foldable cushion having a tray function and used by being placed on the seat surface of a vehicle. It is composed of a bottom portion 30, a side wall portion 40, and a front portion 50 in which a core material 10 and a cushion material 20 are each covered with a cover 25. The bottom portion 30, the side wall portion 40, and the front portion 50 are connected via a folding portion 60. By folding, a cushion portion 70 is formed on the upper surface, and by unfolding, the side wall portion 40 and the front portion 50 rise, adopting a configuration having the tray function for accommodating documents S and small items K.

[0027] The core material 10 is composed of a plate-like member, and as a material, synthetic resins such as vinyl chloride plates and polypropylene resins are suitable. However, such materials are not particularly limited, and any material having flexibility to allow deformation due to the weight of a person and having elastic characteristics to return to its original state after removing stress after such deformation may be used.

[0028] The cushion material 20 is a member that absorbs impacts, deforms due to the body and weight of a person, and greatly affects the riding comfort of an automobile. For example, foamed resins and fibrous materials are conceivable, and urethane foam is particularly suitable.

[0029] The cover 25 covers the core material 10 and the cushioning material 20. Since it is the part that directly touches the human body, a material with a good texture is preferable. It is desirable to provide a fastener 80 on such a cover 25 to enable replacement, addition, or removal of the cushioning material 20.

[0030] The bottom part 30 is the bottom when it is a tray, and when it is a seat cushion, it is the part that becomes the seating surface. It is composed of the core material 10 and the cushioning material 20, and the shape is substantially square. Regarding the cushioning material 20 to be used, it is important to fully consider whether a high resilience that keeps the posture and reduces the burden on the waist is good in consideration of the resilience, or whether a low resilience is good in terms of the fitting feeling when sitting, and use a cushioning material 20 having the desired resilience performance according to the user's preference. In recent years, in many of the mainstream seat cushions, a low-resilience urethane foam is often used for such a seating surface part.

[0031] The side wall part 40 is the side wall when it is a tray, and when it is a seat cushion, it is the part that becomes a part of the seating surface. It is composed of the core material 10 and the cushioning material 20, and the shape is substantially strip-shaped. Regarding the cushioning material 20 to be used, it is important to fully consider whether a high resilience that keeps the posture and reduces the burden on the waist is good in consideration of the resilience, or whether a low resilience is good in terms of the fitting feeling when sitting, and use a cushioning material 20 having the desired resilience performance according to the user's preference. It is also preferable to have a configuration in which the hardness of the cushioning material 20 of such a side wall part 40 is different from that of the cushioning material 20 of the bottom part to support the posture.

[0032] The front part 50 is the front when it is a tray, and when it is a seat cushion, it is the part that becomes a part of the seating surface. It is composed of the core material 10 and the cushioning material 20, and the shape is substantially strip-shaped. Regarding the cushioning material 20 to be used, it is important to fully consider whether a high resilience that keeps the posture and reduces the burden on the waist is good in consideration of the resilience, or whether a low resilience is good in terms of the fitting feeling when sitting, and use a cushioning material 20 having the desired resilience performance according to the user's preference.

[0033] The folding part 60 is a connecting part for horizontally folding the wall surfaces where the side wall part 40 and the front part 50 stand up by unfolding. However, it is not limited to the folding method shown in the drawing, and there are various folding methods.

[0034] The cushion part 70 is made of a material having elastic characteristics for improving the sitting comfort by the core material 10 and the cushion material 20, and is a part that exhibits the cushion function formed on the upper surface when folded.

[0035] The fastener 80 is an opening and closing mechanism provided on the cover. Specifically, for example, a slide fastener or the like can be considered. By providing such a fastener, it is provided for easily replacing, adding, or deleting the covered cushion material.

[0036] The tray function T is a function of deforming into a storage space formed by unfolding the side wall part 40 and the front part 50 so as to stand up with respect to the bottom. When the front part 50 and the side wall part 40 stand up, it is a storage space that regulates the movement of documents S and small items K stored inside so that they do not fall off even due to acceleration, deceleration, or turning of the automobile.

[0037] The seat seating surface Z is the upper surface part of the seat in an automobile seat.

[0038] Documents S is a general term for articles such as texts and writings, and are flat things such as paper, notes, or files.

[0039] Small items K refer to things that cause problems due to falling off other than documents, and for example, writing utensils, mobile phones, etc.

[0040] Figure 4 is an explanatory diagram for explaining the displacement prevention member 90 and the holding member 100 for preventing displacement according to the present invention.

[0041] As for the displacement prevention member 90, if it is a natural material, a rubber-based material can be considered, and in the case of a synthetic resin-based material, silicon, nitrile rubber, or polyurethane, etc. can be considered as the material.

[0042] The holding member 100 holds the bottom 30 by sandwiching it in the gap between the rear end of the seat of the sheet S and the lower end of the backrest.

[0043] FIG. 5 is an enlarged explanatory view for explaining the folding portion and the constituent members according to the present invention. FIG. 5(a) shows a perspective view of the folding portion 60 of the foldable sheet cushion 1 having a tray function according to the present invention, and FIG. 5(b) shows a cross-sectional view of the folding portion 60 of the foldable sheet cushion 1 having a tray function according to the present invention. As shown in FIG. 5, the overall shape is formed by the core material 10 made of a plate-like member, and the cushion material 20 is attached to such a core material 10 and covered with a cover 25. Further, the side wall portion 40 and the front face portion 50 are coupled via the folding portion 60. Note that the folding method and shape of such a folding portion 60 are not particularly limited, and it is sufficient that the side wall portion 40 and the front face portion 50 can rise up to form a tray-like shape.

Industrial Applicability

[0044] According to the foldable sheet cushion 1 having a tray function according to the present invention, in an automobile or the like with a narrow living space, while securing a storage space, it also contributes to an improvement in the riding comfort, so it can be considered for use in the automobile industry and the like, and it can be said that the industrial applicability is high.

Explanation of Reference Numerals

[0045] 1 Foldable cushion having a tray function 10 Core material 20 Cushion material 25 Cover 30 Bottom 40 Side wall portion 50 Front face portion 60 Folding portion 70 Cushion portion 80 Fastener 90 Displacement prevention member 100 Holding member T Tray function Z Seat surface S Documents Small items K

Claims

1. A foldable cushion having a tray function (T) and placed on a seat surface (Z) of a vehicle, The bag is made up of a bottom (30), a side wall (40), and a front surface (50), each of which is made up of a core material (10) and a cushioning material (20) covered with a cover (25); The bottom portion (30), the side wall portion (40) and the front portion (50) are connected via a folding portion (60), By folding, a cushion portion (70) is formed on the upper surface, The foldable cushion (1) with a tray function is characterized in that, when unfolded, the side wall part (40) and the front part (50) stand up, and the tray function (T) for storing documents (S) and small items (K) is exerted.

2. The foldable cushion (1) with tray function as described in claim 1, characterized in that a fastener (80) is provided on the cover (25) to enable replacement or addition or removal of the cushioning material (20) installed inside the cushion part (70) which is any one of the bottom part (30), the side wall part (40), and the front part (50), or a combination of these.

3. The foldable cushion (1) having a tray function as described in claim 1 or 2, characterized in that a slip prevention member (90) for preventing slippage is attached to the seat surface side of the bottom part (30).

4. The foldable cushion (1) with tray function as described in claim 1 or claim 2, characterized in that the bottom (30) is provided with a holding member (100) that is sandwiched and held in the gap between the rear end of the seat (S) and the lower end of the backrest.

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