FR3121098A1 - Safety system for a standing passenger in a vehicle and associated vehicle - Google Patents

Abstract

Safety system for a standing passenger in a vehicle and associated vehicle This safety system for a standing passenger (20) in a vehicle, in particular a railway vehicle, the system (12) comprises: - two shoulder straps (24, 26), each strap (24, 26) being able to surround a shoulder of the passenger (20), each strap (24, 26) having a fixed end (32) able to be fixed to a support support (22) of the vehicle (10) from a wall (14) of the vehicle or a part of said wall (14); and - for each shoulder strap (24, 26), an adjustment mechanism (30) of said shoulder strap (24, 26) so that the shoulder straps (24, 26) are able to hold the upper body of the passenger (20) against the bearing support (22). Figure for the abstract: Figure 3

Description

Safety system for a standing passenger in a vehicle and associated vehicle

The present invention relates to a safety system for a standing passenger in a vehicle, in particular a railway vehicle.

Due to the jolts associated with the successive accelerations and decelerations of the vehicle, passengers standing in a vehicle may experience difficulty in maintaining a standing position.

It is known to install handrails for passengers to hold onto. The handrails are for example in the form of horizontal bars mounted on one of the walls of the vehicle or in the form of tripod bars fixed to the floor of the vehicle.

However, maintaining such a bar requires a constant effort from the passenger, which reduces his comfort.

In addition, holding such a bar requires manual contact on the part of each of the passengers, which is unhygienic and can promote the spread of viruses.

An object of the invention is to provide a system capable of keeping a passenger upright in complete safety, freeing itself from manual contact and comfortable for the passenger.

To this end, the subject of the invention is a security system comprising:

- two straps, each strap being able to surround a shoulder of the passenger, each strap having a fixed end suitable for being fixed to a support support of the vehicle among a wall of the vehicle or an element of said wall; And

- for each shoulder strap, a mechanism for adjusting said shoulder strap so that the shoulder straps are suitable for maintaining the upper body of the passenger against the support support.

The shoulder straps keep the passenger upright, like seat belts for seated passengers.

The security system according to the invention comprises one or more of the following characteristics, isolated socket(s) or according to any technically possible combination:

• The fixed end of each shoulder strap is suitable for being fixed to the support support at a different anchoring point from the anchoring point of the fixed end of the other shoulder strap.
• The adjustment mechanism of each shoulder strap is positioned at the end opposite the fixed end of said shoulder strap.
• The adjustment mechanism of each shoulder strap includes an automatic retractor.
• The automatic retractor of the adjustment mechanism of each shoulder strap includes a pretensioner capable of restraining the upper body of the passenger in the event of violent braking or jerks.
• The automatic retractor of the adjustment mechanism of each shoulder strap is designed to be fixed to the support support at a different attachment point from the attachment point of the automatic retractor of the adjustment mechanism of the other shoulder strap.
• The distance between the automatic retractor attachment point and the shoulder strap anchor point is designed to be substantially identical for both shoulder straps.
• Each shoulder strap includes a rigid bridge to allow the insertion of a passenger's arm.

The invention also relates to a vehicle, in particular a railway vehicle, comprising at least one wall and at least one safety system, the support support being said wall of the vehicle or an element of said wall.

The vehicle according to the invention may also comprise the following characteristic:

• The wall comprises at least one horizontal crosspiece, the bearing support being the horizontal crosspiece.

The invention will be better understood on reading the following description, given solely by way of example, and made with reference to the appended drawings, in which:

- there is a top view of the interior of a vehicle including examples of three security systems;

- there is a schematic front view of one of the security systems of the ; And

- there is a schematic side view of one of the security systems of the .

There illustrates the interior of a vehicle 10 comprising several security systems 12 for a standing passenger.

The vehicle 10 is for example a railway vehicle such as a metro, a tramway or a train. Alternatively, the vehicle is a bus.

The vehicle 10 comprises a passenger compartment 13. The passenger compartment 13 comprises a closed passenger reception space 16 defining at least two walls 14 and a floor 18.

As illustrated on the , the space 16 is suitable for accommodating standing passengers.

In the example shown in the , a passenger 20 is held upright by one of the safety systems 12. The back of the passenger 20 held in the safety system 12 extends along a support support 22.

The support support 22 is for example a side wall 14 of the vehicle or an element of said side wall 14. The element of the side wall 14 is for example a horizontal crosspiece (not shown). The horizontal crosspiece is for example a bar fixed to the side wall 14 or is a reinforcement part of the side wall 14, in particular if the side wall 14 is glazed.

The security system 12 includes two shoulder straps 24, 26.

As illustrated in Figures 1 and 2, each strap 24, 26 is able to surround a shoulder of the passenger.

Each shoulder strap 24, 26 comprises a strap 28, an adjustment mechanism 30 capable of maintaining the upper body of the passenger 20 against the support support 22. Optionally, each shoulder strap 24, 26 comprises an insertion bridge 27, as in the example shown in the .

Advantageously, the two straps 24, 26 of the security system 12 are identical.

The strap 28 is for example made of polyester or nylon.

The strap 28 of each strap 24, 26 has a width of between 3 cm and 8 cm and a useful length in use of between 60 cm and 150 cm.

Each strap 24, 26 defines a first end 32 and a second end 34. In the example illustrated in the , the first end 32 is the lower end of the shoulder strap 24 and the second end 34 is the upper end of the shoulder strap 24.

In the example shown in the , the first end 32 is fixed and able to be fixed to the bearing support 22 at an anchor point 36.

Each strap 24, 26 is for example attached to an eyelet (not shown) fixed to the support support 22, the eyelet defining the anchor point 36.

Advantageously, for safety reasons, the first end 32 is able to be easily detached from the support support 22 by the passenger. For example, in an emergency, the passenger presses a button attached to the eyelet in order to detach the first end 32 of each strap 24, 26 and thus disengage more quickly.

Preferably, the anchor point 36 of the strap 24 is different from the anchor point 36 of the first end 32 of the other strap 26.

The anchor points 36 of the two straps 24, 26 are advantageously located on the support support 22 at the same distance from the ground 18. This distance is for example between 0.6 m and 1.1 m.

The distance between the anchor points 36 of the two straps 24, 26 is for example between 30 cm and 50 cm.

The adjustment mechanism 30 of each strap 24, 26 is positioned at the second end 34 opposite the first fixed end 32 of the strap 24, 26.

The adjustment mechanism 30 of each strap 24, 26 is advantageously fixed to the support support 22.

Advantageously, the adjustment mechanism 30 of each strap 24, 26 comprises an automatic retractor 38.

The automatic winder 38 comprises a cylinder 40, around which the strap 28 winds. The strap 28 is thus broken down into a first part surrounding a shoulder of the passenger and a second part of the strap 28 surrounded around the cylinder 40. The distribution of the length of the strap 28 between the first part and the second part is variable and can be modified by the passenger, for example by pulling on the strap 28 in order to unwind it.

Advantageously, the automatic retractor 38 also includes a pretensioner 42 capable of retaining the passenger's upper body in the event of violent braking or a jerk.

The pretensioner 42 is for example a spring capable of constraining the automatic retractor 38 in such a way that it exerts tension on the seat belt and causes the blocking of the unwinding of the strap 28 of the strap 24,26, in particular in the event of violent braking or jerking.

In the example shown in the , the automatic retractor 38 of the adjustment mechanism 30 of each strap 24, 26 is suitable for being fixed to the support support 22 at a point of attachment 44 of the retractor, different from the point of attachment 44 of the retractor 38 of the adjustment mechanism 30 of the other strap 24, 26.

The distance D between the attachment point 44 of the retractor 38 and the anchor point 36 of the shoulder strap is capable of being substantially identical for the two shoulder straps 24, 26.

The distance D between the attachment point 44 of the retractor 38 and the anchor point 36 of the strap is for example between 40 cm and 80 cm.

In the example shown in the , the rigid bridge 27 is capable of allowing the insertion of a passenger's arm, and advantageously without manual contact.

The rigid bridge 27 is for example a hollow tube in the shape of an arch in which the strap 28 is inserted.

The operation of such a security system 12 will now be described.

A safety system 12 comprising two shoulder straps 24, 26 is fixed to a support support 22 of the vehicle 10.

A passenger 20 wishing to use the safety system 12 first inserts an arm into the rigid bridge 27 of the first strap 24 and then puts on the strap 24, so that it surrounds a shoulder of the passenger. When the shoulder strap 24 does not include a rigid bridge 27, the passenger 20 puts on the shoulder strap 24 directly.

The adjustment mechanism 30 comprising an automatic retractor 38 automatically adjusts the length of the strap 28 of the shoulder strap 24 surrounding the shoulder of the passenger 20, in order to maintain the upper body of the passenger against the support support 22.

The passenger 20 then puts on the second strap 26 around his second shoulder in the same way.

The passenger 20 is thus held upright by the safety system 12 with his back extending along a support support 22.

In the event of violent braking or jerking, the pretensioner 42 of each of the shoulder straps 24, 26 constrains the automatic retractor 38, which blocks the unwinding of the strap 28 of each of the shoulder straps 24, 26 and keeps the upper body of the passenger against the bearing support 22.

Such a security system 12 allows the passenger 20 to travel upright in the vehicle in complete safety.

Indeed, the maintenance of the upper body of the passenger 20 by the shoulder straps 24, 26 allows the passenger not to have to support his own weight, which increases his comfort. The passenger is also less sensitive to jolts, in particular related to the successive accelerations and decelerations of the vehicle.

In addition, thanks to the automatic winder 38, the strap 28 adapts its length to the morphology of the passenger.

In addition, the installation of a pretensioner 42 makes it possible to increase the safety of the passenger, by blocking the unwinding of the strap 28 and thus retaining the upper part of the passenger's body in the event of violent braking or jerks.

The rigid bridge 27 also offers the advantage of allowing the straps 24,26 to be put on and taken off without manual contact, which is advantageous, for example, to prevent the spread of viruses.

As illustrated in the , in the same closed space 16 for receiving passengers, several security systems 12 are installed, allowing several passengers to travel upright in complete safety.

Advantageously, the security systems 12 installed in the same space 16 have different dimensions in order to adapt to the different morphologies of the passengers.

The present invention is not limited to the embodiments which have just been described by way of example, but extends to all technically possible combinations of these embodiments.

Claims (10)

Safety system for a passenger (20) standing in a vehicle (10), in particular a railway vehicle, the system (12) comprising:
- two straps (24, 26), each strap (24, 26) being able to surround a shoulder of the passenger (20), each strap (24, 26) having a fixed end (32) able to be fixed to a support of support (22) of the vehicle (10) among a wall (14) of the vehicle (10) or an element of said wall (14); And
- for each shoulder strap (24, 26), a mechanism (30) for adjusting said shoulder strap (24, 26) so that the shoulder straps (24, 26) are suitable for maintaining the upper body of the passenger (20) against the support support (22). Safety system according to Claim 1, in which the fixed end (32) of each strap (24, 26) is capable of being fixed to the support support (22) at an anchoring point (36) different from the point anchor (36) of the fixed end (32) of the other strap (24, 26). A safety system according to claim 1 or 2, wherein the adjustment mechanism (30) of each shoulder strap (24, 26) is positioned at the end (34) opposite the fixed end (32) of said shoulder strap ( 24, 26). A safety system according to any preceding claim, wherein the adjustment mechanism (30) of each shoulder strap (24, 26) comprises an automatic retractor (38). Safety system according to Claim 4, in which the automatic retractor (38) of the adjustment mechanism (30) of each shoulder strap (24, 26) comprises a pretensioner (42) capable of restraining the upper body of the passenger (20 ) in the event of violent braking or jolts. Safety system according to claim 4 or 5, in which the automatic retractor (38) of the adjustment mechanism (30) of each shoulder strap (24, 26) is adapted to be fixed to the support support (22) in one attachment point (44), different from the attachment point (44) of the automatic retractor (38) of the adjustment mechanism (30) of the other strap (24, 26). Safety system according to Claim 2 and Claim 6, in which the distance between the point of attachment (44) of the automatic retractor (38) and the anchor point (36) of the shoulder strap (24, 26) is adapted to be substantially identical for the two shoulder straps (24, 26). Safety system according to any one of the preceding claims, in which each shoulder strap (24, 26) comprises a rigid bridge (27) capable of allowing the insertion of a passenger's arm. Vehicle, in particular railway vehicle, comprising at least one wall (14) and at least one safety system (12) according to any one of the preceding claims, the support support (22) being the said wall (14) of the vehicle ( 10) or an element of said wall (14). Vehicle according to Claim 9, in which the wall (14) comprises at least one horizontal crosspiece, the bearing support (22) being the horizontal crosspiece.