Seat belt fastening device

The toothed belt mechanism with a geared motor and sensors automates seat belt operation via a switch, addressing the challenge of manual difficulty for passengers with disabilities, ensuring ease and cost-effectiveness.

JP2026086914APending Publication Date: 2026-05-26东 睦浩
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
东 睦浩
Filing Date
2026-03-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Passengers with hand disabilities face difficulty in attaching and detaching seat belts in vehicles.

Method used

A toothed belt mechanism with a geared motor and sensors allows seat belt operation via a switch, using rollers and a fixing screw to automate the fastening and detaching process.

Benefits of technology

Enables convenient seat belt attachment and detachment for both disabled and able-bodied individuals without requiring manual handling, maintaining vehicle aesthetics and being cost-effective.

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Abstract

This system allows users of vehicles to fasten and unfasten their seat belts simply by operating a switch. [Solution] A toothed belt 1 stored inside the vehicle or the like is operated according to the passenger's instructions, and the seat belt 10 fixed to the toothed belt 1 is fastened and detached by the up-and-down movement of the lowest part of the seat belt 10.
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Description

Technical Field

[0001] The present invention relates to a seat belt used by passengers in vehicles and the like.

Background Art

[0002] Conventionally, the attachment and detachment of seat belts have generally been performed by passengers using both hands.

Summary of the Invention

Problems to be Solved by the Invention

[0003] For people with hand disabilities or the like, the attachment and detachment actions have been difficult.

[0004] The present invention aims to solve this problem, and enables the user of the seat belt in a vehicle or the like to attach and detach the seat belt only by operating a switch.

Means for Solving the Problems

[0005] To achieve the above object, the present invention uses a toothed belt 1 as shown in FIG. 1.

[0006] As shown in FIG. 2, this toothed belt 1 includes a fixing screw 5 for fixing the lower part of the seat belt 10, rollers 4A to 4F for improving the sliding of the seat belt 10, a cavity 2 for passing through the seat belt 10 extending from the seat belt storage 12, a sensor sensing metal 13 for controlling the operation of the toothed belt 1, and teeth 3A and 3B are provided to form the toothed belt 1 in a ring shape for more accurate operation.

[0007] As shown in FIG. 2, by rotating the drive gear 8 by operating the switch to rotate the geared motor 6 with an ohm gear forward and backward, the toothed belt 1 is moved to move the seat belt fixing screw 5 up and down.

[0008] As a result, the seat belt 10 is fastened to the passenger in the order shown in Figures 4 to 6, and conversely, it is removed in the order shown in Figures 6 to 4. [Effects of the Invention]

[0009] As described above, the seat belt fastening and detaching device of the present invention is convenient for both disabled and able-bodied individuals because it allows passengers to fasten and detach their seat belts simply by operating a switch. [Brief explanation of the drawing]

[0010] [Figure 1] Structural diagram of a toothed belt [Figure 2] Structural diagram for operating a toothed belt [Figure 3] Top view showing the device positioned on the center pillar and roof. [Figure 4] A diagram showing passengers before fastening their seatbelts. [Figure 5] A diagram showing a passenger giving instructions to fasten or unfasten their seatbelt, and the toothed seatbelt operating in response to those instructions. [Figure 6] A diagram showing passengers who have finished fastening their seatbelts. [Figure 7] Diagram showing the tongue plate and buckle separated. [Figure 8] A diagram showing how the rollers in the bending section of a seatbelt have been replaced with smooth, curved nylon plates. [Modes for carrying out the invention]

[0011] Embodiments of the present invention will be described below with reference to Figures 1 to 8.

[0012] As shown in Figure 4, the seat belt 10, tongue plate 11, and buckle 9 are normally connected, meaning they are in a standby state.

[0013] When the passenger 17 gives an instruction to wear the seat belt 10, the geared motor 6 with an ohm gear shown in Fig. 2 starts to rotate forward, the drive gear 8 rotates forward, moves the toothed belt 1, and the bottom part of the seat belt 10, i.e., the part of the seat belt fixing screw 5 fixed to the toothed belt 1, moves to the bottom and stops in the order shown in Figs. 4, 5, and 6.

[0014] This stop is due to the metal sensing sensor 14B sensing the sensor sensing metal 13 and stopping the forward rotation of the geared motor 6 with an ohm gear.

[0015] As a result, the passenger 17 is considered to have worn the seat belt 10.

[0016] When the passenger 17 tries to remove the seat belt 10 and gives the instruction, the drive gear 8 starts to rotate reversely due to the reverse rotation of the geared motor 6 with an ohm gear. In the order shown in Figs. 6, 5, and 4, the seat belt 10 moves to the top, stops, and it is considered that the removal is completed.

[0017] This stop is achieved by the metal sensing sensor 14A sensing the sensor sensing metal 13 and stopping the geared motor 6 with an ohm gear.

[0018] Also, this device is installed as shown in Fig. 3 at the center pillar 15 of the vehicle body 19 and the roof part, that is, in the front part above the head of the passenger 17, and is configured such that the tongue plate 11 is located directly above the buckle 9 when it moves to the top.

[0019] Also, by making the drive gear 8 and each roller 4B - 4F smaller, the thickness of this device can be reduced, so it can be housed in the center pillar 15 and the roof part without damaging the aesthetics inside the vehicle.

[0020] Furthermore, instead of the rollers 4B - 4F, as shown in Fig. 8, if nylon - based plates 20A - 20C made of a slippery material are used, a thinner configuration is possible.

[0021] The reason for using the geared motor 6 with an ohm gear is that when this motor stops, a brake is applied to the toothed belt 1 to lock it so that the seat belt 10 does not move.

[0022] And when the seat belt 10 becomes an obstruction, the buckle 9 and the tongue plate 11 can be separated as shown in Fig. 7, and the seat belt 10 can be positioned above the head.

[0023] As described above, since the seat belt user can attach and detach the seat belt by operating the switch, it helps people with disabilities in their hands or arms.

[0024] Also, the structure is simpler than the prior art and is easy to store in the vehicle body. Therefore, not only is the aesthetics not impaired, but it can be installed at a low cost.

Explanation of Reference Signs

[0025] 1 Toothed belt 2 Hollow part 3A - 3B Teeth 4A - 4F Rollers 5 Seat belt fixing screw 6 Geared motor with ohm gear 7 Gear 8 Driving gear 9 Buckle 10 Seat belt 11 Tongue plate 12 Seat belt storage 13 Metal for sensor detection 14A, 14B Metal detection sensors 15 Center pillar 16 Seat 17 Occupant 18 Toothed belt storage position 19 Vehicle body 20A - 20C Nylon plates

Claims

[Claim 1] A toothed belt has a cavity through which the seat belt can pass, and the lowest end of the seat belt is fixed to the toothed belt. The reciprocating motion of the toothed belt moves the lowest end of the seat belt up and down, allowing the seat belt to be fastened and detached.