Car seat bag
The box-shaped vehicle seat-mounted bag with angled surfaces and high-friction materials addresses sliding and access issues, enabling secure one-handed use and easy insertion/retrieval of items, regardless of shape or size.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- 冈野 戸仁子
- Filing Date
- 2025-01-31
- Publication Date
- 2026-05-19
AI Technical Summary
Existing vehicle seat-mounted bags face issues with sliding during turns, difficulty in one-handed access, and incomplete fixation, especially when objects of irregular sizes or shapes are stored, and lack of comprehensive side support leading to potential sliding and access challenges.
A box-shaped body with angled surfaces and high-friction materials, featuring a wide opening and self-supporting front section, along with optional belt attachments and transparent or mesh materials for visibility and ease of use.
Ensures secure one-handed access and prevents sliding of items, maintains object shape, and allows easy insertion and retrieval of items of varying sizes and shapes without deforming, even during vehicle maneuvers.
Smart Images

Figure 0007862113000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a seat-mounted bag for a vehicle, which has wall surfaces on all four sides and an open upper part, and the backrest and bottom surface of the front passenger seat in the vehicle can be installed in close contact with the seat, and the driver can take things in and out with one hand.
Background Art
[0002] Search by vehicle, seat, mount → Utility Model No. 3035891 Search by vehicle, seat, bag → JP-A-2017-205080 A belt for attaching a bag to a backrest was presented at an invention exhibition.
Prior Art Documents
[0003]
Patent Documents
Patent Documents
Summary of the Invention
Problems to be Solved by the Invention
[0004] For this reason, there were the following problems. When turning left, it would slide down. If it was tied with a belt to prevent this, it was difficult to insert one hand between the backrest and the belt. · If the object was not of a size or shape that could be tied, it was impossible to fix it. · Tying it affected the shape of the bag body and the state of the contents stored inside. · Fixing it only by tying was incomplete, and it was impossible to take it out with one hand. In the case of the utility model of the above-mentioned document, it is something that hangs the thing normally used as a bag on the back side of the diagonal backrest, · If the lid was opened to an open state, it could not be fixed to the front passenger seat. Even if it could be fixed, it was not surrounded on all four sides, and it was impossible to prevent the placed thing from sliding down. Without the side sections, it would have been impossible to secure the insert. Means for solving the invention
[0005] The invention has a box-shaped body on the bottom surface of a rectangle ABCD, consisting of a rectangular front surface FBCG and rear surface EADH, a square left side surface ABFE, and a square right side surface DCGH. The two side surfaces are identical in shape, and their upper ends rise towards the rear surface. The front and rear surfaces rise from each other at an obtuse angle to the bottom surface, and the front surface is positioned at an obtuse angle that takes into account the inclination α of the seat placement inside the vehicle, in addition to the condition of an obtuse angle.
[0006] Bags, shopping pouches, wallets, cell phones, documents, and envelopes intended for mailing no longer slip out. Shopping bags, wallets, etc. can now be easily taken in and out with one hand while driving, thanks to the wide opening, giving the feeling of placing the bag on the seat almost the same as when the bag itself wasn't there. I no longer have to worry about the inserted material deforming. Even if the inserted object protrudes higher than the wall surface, it can now be inserted without any problems. [Brief explanation of the drawing]
[0007] [Figure 1] These are perspective views of the first and second forms. [Figure 2] This is a perspective view of the first form in use. [Figure 3] This is a perspective view of the second form. [Figure 4] This is a perspective view showing how to fold it. [Modes for carrying out the invention]
[0008] Embodiments of the present invention will be described below. First, the first form will be explained using Figures 1 and 2. Figure 1 is a perspective view, and Figure a shows a box-shaped body having four sides around the perimeter and a bottom (5). This box-shaped body is comprised of a lower rear section (2), a left side (3), a front section (6), and a right side (7) around the bottom. The rear section is longer than the front section, and the upper ends of the two identical side sections rise towards the rear and connect naturally to the rear section. The front section either has a board built in to be self-supporting or a board is added to assist in the self-supporting of the front section. The bottom and rear sections are made of a material with relatively high friction.
[0009] Figure b shows an extension from the upper end of the lower rear section (2) to form the upper rear section (1), where holes and belt fasteners (8) are provided. The bottom line (4) of the bottom section is horizontal before being installed on a chair. The upper rear section gradually narrows from the upper end of the lower rear section and extends to the same height as the car's backrest. It is optional to provide holes in this rear section or to provide a separate belt that can be attached to the head. The bottom line (4) of the main body (11) itself is shown.
[0010] Figure 2a is a perspective view showing the relationship between the insert (13) such as a bag or documents and the main body (11). A fastener (8) is attached to the upper end of the lower rear section (2). Figure 2b shows the left side view of the unit when it is placed on the seat surface (12) with the backrest leaning against it. Since the seat surface of a car is designed to be angled upwards and forward relative to the horizontal plane, the relationship between the seat and the seat is simplified and explained without depicting the curves of the seat. If we denote the intersection angle of the horizontal line (15) and the inclination line (14) of the seat as α, the angle of the front section represents the perpendicular line (19) to the horizontal plane. However, in order to maintain the open position while driving, it is best not to deviate too much from the direction of the perpendicular line on the horizontal plane. Since it is easier to use if it stands vertically, an obtuse angle + α (20) is required. At the rear, the α component increases, so care should be taken to ensure that it does not spread too much in accordance with the degree to which the backrest is normally opened.
[0011] A second embodiment having a membrane portion (16) approximately the height of the upper edge of the front surface will be described using Figures 3 and 4. Figure 3a is a perspective view showing a film portion starting from an arbitrary position at the upper end of the side surface portion provided along the surface of the lower part (2) of the rear surface portion. The joining position (17) is shown on the left side surface portion (3). Figure b shows the film portion along the lower part of the rear surface portion pulled out and the insert (13) is shown shaded. The front space is in a state where nothing is inserted. Figure 4 is a perspective view showing the folding method. Figure a shows the front surface portion (6) about to be folded inward as indicated by the arrow, and the front surface portion is tilted forward of the rear surface portion (1, 2). Next, as shown in Figure b, the left and right side surface portions (3, 7) are folded onto it, covered by the rear surface portion, and then the bottom surface portion (5) is wrapped around the remaining length of the rear surface portion, and the joining materials at the reached positions are fastened together. If a joining material is provided around the tip of the fixture, a corresponding fixture is provided at the position of the corresponding box-shaped body. The paired joining materials are on the back side of the bottom surface portion. The joining material (18) provided on the upper part (1) of the rear surface portion is shown in black. In addition, add as other things. At least the side surface portion and the main body (11) should be made of a material that is easily dented without resistance and does not hurt the human body when impacted. For crime prevention, in addition to providing it with obtuse angles so that the stored items are more visible from the outside of the vehicle, it is preferable to use meshes or transparent fabrics.
Explanation of Signs
[0012] 1 Upper part of the rear surface portion 2 Lower part of the rear surface portion 3 Left side surface portion 4 Bottom line 5 Bottom surface portion 6 Front surface portion 7 Right side surface portion 8 Fixture 9 Head 10 Backrest 11 Main body 12 Upper surface of the seat 13 Insert 14 Tilt line 15 Horizontal line 16 Film portion 17 Joining line 18 Joining material 19 Perpendicular line to the horizontal plane 20 α minutes 21 Box-shaped body
Claims
[Claim 1] The main body is a box-shaped structure consisting of a rectangular front section FBCG and a rectangular rear section lower section EADH(2), a square left side section ABFE and a square right side section DCGH, on the bottom surface of a rectangle ABCD, the left and right side sections being identical in shape, with the upper edges EF and HG rising towards the rear, the front section FBCG and rear section EADH rising at an obtuse angle to the bottom surface ABCD, the front section FBCG being obtuse in the horizontal direction as well as the inclination α of the seat installation inside the car, the upper rear section (1) extending from the upper end of the rear section lower section EADH(2) and gradually narrowing from the upper end of the rear section lower section to the same height as the car's backrest, and membrane sections joined at the same length from points F and G at both ends of the front section of the left and right side sections, respectively, at the same height as the joining position The car seat bag is characterized in that, if the joining position is on the left side, it continues from there along the inside of the box-shaped body to the rear, extends from the rear to the remaining right side, joins vertically to the inside of the right side at a position symmetrical to the joining position on the left side, a fastener for attaching to the head is provided on the upper part of the rear by providing a hole or a belt of a different material, the fastener has a length that can hold the box-shaped body of the main body in a natural position on the seat, or is a fastener that can be adjusted as described above, the front part is folded down to the front of the rear part, the left and right side parts (3, 7) are folded over them and covered with the rear part, and then the bottom part is wrapped with the remaining length of the rear part and fastened together, there is a fastener on the underside of the bottom part that is paired with the fastener (18) provided on the upper part of the rear part.