Automobile door opening degree restriction belt
The adjustable belt system for automobile doors addresses the limitations of existing systems by providing controlled and consistent door opening across all seats, preventing sudden wide openings and ensuring safe access.
Patent Information
- Application Number
- JP2023181467
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-10-03
- Publication Date
- 2025-04-15
AI Technical Summary
Existing door opening regulation systems, such as those described in Patent Document 1, primarily focus on the driver's seat side and require frequent manual adjustment of belts, lacking comprehensive control over door opening degrees for all seats and being prone to sudden wide opening due to external forces.
A length adjustable belt system is attached to the automobile door and the floor, featuring a buckle attachment portion under the car door and Velcro on the floor, allowing for adjustable and controlled door opening degrees, preventing sudden wide openings and ensuring consistent access across all seats.
The system ensures that the door opens to a preset level, preventing accidental wide opening and potential damage from contact with adjacent vehicles or walls, while allowing easy and consistent access for passengers across all seats.
Smart Images

Figure 2025062975000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a door opening restriction device using a length-adjustable belt attached to the bottom of an automobile door and to the lower floor of the automobile interior. [Background technology]
[0002] There was a door opening restriction in an automobile in which a belt was hooked onto the driver's door handle and steering wheel (see Patent Document 1). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Utility Model Registration No. 3216528 Summary of the Invention [Problem to be solved by the invention]
[0004] This caused the following problems: The technology disclosed in Patent Document 1 regulates the door opening angle only on the driver's side, and the driver is required to hook the belt around the steering wheel and remove the belt every time he gets in and out of the car or drives the car. In addition, there were no restrictions on the opening of the passenger and rear doors. The present invention has been made to solve these problems. [Means for solving the problem]
[0005] A buckle attachment portion is provided on the inside bottom of the automobile door, and a Velcro portion is provided on the lower floor inside the automobile. A length-adjustable belt is attached between a buckle portion at the bottom inside of the car door and a Velcro portion at the bottom floor inside the car. The above is a vehicle door opening regulation belt. Effect of the Invention
[0006] The car door opening restriction belt of this invention adjusts the car door opening angle once when the driver gets in and out of the driver's seat and when the passenger gets in and out of the passenger seat or back seat, so the door will not open beyond the preset opening angle. Therefore, if an unexpected human or external force such as wind pressure is applied to the door, the door will not suddenly open wide, and if there is an object such as another car or a wall adjacent to the side where the door is opening, it will not come into contact with these and cause damage to each other. [Brief description of the drawings]
[0007] [Figure 1] 1 is a diagram showing a state in which the automobile door opening degree regulation belt of the present invention is used. [Diagram 2] 1 is an overall perspective view of an automobile door opening degree regulation belt according to the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0008] Hereinafter, an embodiment of the present invention will be described. (i) Attach a plate with buckle 1A to the inside bottom of the car door with screws. (b) One end of the Velcro tape 2A is attached to the interior floor of the automobile using double-sided tape. (c) Attach a buckle 1B to the end of the length-adjustable belt, and attach a Velcro tape 2B to the other side of the length-adjustable belt. (d) The buckle 1A attached to the inside bottom of the car door is inserted into the buckle 1B at the end of the belt and fixed in place. The other Velcro part 2B at the end of the length-adjustable band is attached to the Velcro part 2A attached to the floor of the car interior. (e) The opening angle of a car door is controlled by a length-adjustable belt buckle 1B. The present invention has the above-mentioned configuration. When using the present invention, Buckle 1B at the end of the length-adjustable band is inserted and fixed into buckle 1A located at the bottom inside of the car door. Velcro section 2B at the other end of the length-adjustable band is attached to Velcro section 2A attached to the floor of the car interior with double-sided tape. Buckle 1B at the end of the length-adjustable band is used to adjust the opening angle to a level where people can get in and out of the car door. The opening angle remains the same even if people get in and out repeatedly. Also, if you want to open the car door wider, you can remove buckle 1B and the car door will open fully. [Explanation of symbols]
[0009] 1A Buckle part attached under the car door 1B Length-adjustable belt buckle 2A Automobile interior floor Velcro tape 2B Length-adjustable belt with Velcro
Claims
[Claim 1] This automobile door opening control belt is characterized in that one side of a buckle attachment part is provided on the inside lower part of the automobile door, a Velcro part is provided on the floor part on the lower side of the automobile interior, one side of a length-adjustable belt end is provided with a buckle part and an opposite side with a Velcro part, and the length-adjustable belt is attached between the buckle on the inside lower part of the automobile door and the Velcro part on the floor part on the lower side of the automobile interior.
Citation Information
Patent Citations
excretion equipment
JP3216528U