CN113208203A - Wearing formula old person's protection device that tumbles - Google Patents

Abstract

The invention relates to a wearable old people falling protection device, which comprises an intelligent sensing system and a quick inflation device, and is characterized in that: still include back protection unit, waist crotch protection unit and wrist protection unit, back protection unit includes the back of the head pad, head protecting airbag and back protecting airbag, waist crotch protection unit includes waist crotch protection pad and waist crotch protecting airbag, waist crotch protecting airbag sets up inside waist crotch protection pad, wrist protection unit includes the wrist pad, wrist protecting airbag and restraint location area, quick inflator can be dismantled and install on waist crotch protecting airbag, head protecting airbag, back protecting airbag, waist crotch protecting airbag and wrist protecting airbag are connected with quick inflator respectively through the trachea. The invention has the advantages of ingenious structure and reasonable design, and greatly improves the comprehensive protection by matching the head protection air bag, the back protection air bag, the waist and crotch protection air bag and the wrist protection air bag.

Description

Wearing formula old person's protection device that tumbles

Technical Field

The invention relates to a wearable old people falling protection device, and belongs to the technical field of old people health protection.

Background

The serious consequences of psychological trauma, fracture, soft tissue injury and the like caused by falling down can affect the mental and physical health of the old, increase the burden of families and society, and become a topic which is emphasized in the clinical medicine of the old.

The fall is a sudden and unexpected phenomenon of falling to the ground, which can occur at any age, but is more common for the elderly, and is a serious threat to the health of the elderly, and the main reason of traumatic fracture of the elderly is the fall, and more than half of the elderly who are injured to see a doctor in a medical institution are caused by the fall every year. Meanwhile, the older the elderly, the higher the risk of injury or death due to falling. According to statistics, the falling has become the first cause of death due to injury of the old people over 65 years old in China. The fall of the old is related to various factors such as aging, diseases, environment and the like. The falling risk may be increased by the decline of gait stability, visual and auditory function, muscle strength, bone degeneration, balance function, etc. caused by aging, nervous system diseases, eye diseases, bone joint diseases, psychological and cognitive function diseases, etc., and the discomfort of the home environment.

Therefore, it is very important how to prevent the elderly from falling and to handle the fall in time after the fall occurs. Besides the means of enabling the old people to learn relevant health knowledge, actively carry out scientific exercise, develop good behavior habits, eliminate falling risks in the environment and the like, the use of the protective product is also an effective method for preventing falling and the falling risks. The main vulnerable part of the old when falling down is that the flexibility and balance ability can be enhanced by exercise, which is very important for the old.

When the elderly fall, fractures of the following parts are likely to occur according to the injured posture: 1. femoral neck fracture and intertrochanteric fracture of femur: the fracture is the most easily caused when the old falls, and when the old falls, the old falls half way down and the hip is injured by sitting on the ground, which often causes femoral neck fracture or femoral intertrochanteric fracture. At this time, swelling and pain of the hip joint, inability to stand, further inability to walk, shortening of the lower limbs, flexion and adduction deformity often occur. 2. Fracture of the wrist: distal radius fractures are common and often occur when the palm of the hand touches the ground when a fall occurs. At this time, swelling, pain, deformity, partial or complete loss of the movement function of the wrist joint, and aggravation of pain when the fingers perform a fist making operation appear above the wrist joint. 3. Spinal compression fracture: the vertebra is mainly composed of cancellous bone, and old people often have osteoporosis, so when the old people fall down and sit on the hip to cause injury, the fracture is often caused. At this time, symptoms such as local pain, muscle spasm of the waist and the back, incapability of standing, difficulty in turning over, feeling of weakness of the waist and the like can occur. In addition, the old people who fall down can also have the possibility that the head violently hits the ground, so that brain tissue is damaged, and sequelae are easy to remain after recovery.

Although various technical solutions for preventing old people from falling and being injured exist at present, the protection parts of the old people are not comprehensive. For example, chinese patent application No. CN201610557318.9 discloses a fall protection system and a fall protection method, wherein the fall protection system mainly uses an airbag helmet and an airbag knee pad to provide soft and effective shock absorption for the head and knees, thereby reducing impact force on key parts of people during falling. The Chinese patent with the application number of CN201210567780.9 discloses a portable falling protection device, which comprises a waistband, an air bag and a quick inflation starting device, wherein the air bag can be quickly unfolded when a human body falls, and a buffer is formed between the human hip bone and the ground, so that the human hip bone is effectively protected. In addition, the existing protection products are lack of protection against wrist fracture and spine compression fracture, so that a product capable of preventing the old from falling down to cause fracture under various conditions is needed.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a wearable old people falling protection device which is ingenious in structure, reasonable in design and capable of protecting the old people comprehensively.

According to the technical scheme provided by the invention: wearing formula old person's protection device that tumbles, including being used for detecting the intelligent perception system that the user will tumble and will tumble at the user and carry out inflatable quick aerating device, its characterized in that: the head and back protection unit comprises a head and back protection pad, a head protection air bag and a back protection air bag, the head and back protection pad is square, an upper air bag cavity and a lower air bag cavity are arranged in the head and back protection pad, the head protection air bag is U-shaped, the head protection air bag is arranged in the upper air bag cavity in a mode that an opening is upward, the top of the upper air bag cavity is provided with an opening which is convenient for the head protection air bag to expand and pop out, and the opening is covered with a tearing part which is easy to be broken; the back protection air bag is in an elliptical ring shape and is arranged in the lower air bag cavity; the waist and crotch protection unit comprises a waist and crotch protection pad and a waist and crotch protection air bag, the rear part of the waist and crotch protection pad is integrally connected with the lower end of the head and back protection pad, the waist and crotch protection air bag is arranged in the waist and crotch protection pad, the front side surface of the waist and crotch protection pad is provided with a buckle connecting piece, two shoulder and chest restraint belts are arranged on two sides of the upper end of the head and back protection pad in an extending mode, the other ends of the two shoulder and chest restraint belts are respectively connected to two sides of the front part of the waist and crotch protection pad, and the middle parts of the two shoulder and chest restraint belts are provided with front chest auxiliary restraint belts capable of being connected with each other; the waist and crotch protection air bag is arranged inside the waist and crotch protection pad; the wrist protection unit comprises a wrist protection pad, a wrist protection air bag and a restraint positioning belt, the wrist protection pad is arc-shaped and is matched with the shape of the outer side of a wrist, the wrist protection air bag is arranged in the wrist protection pad, the cross section of the wrist protection air bag is arc-shaped, two ends of the restraint positioning belt are respectively connected to two sides of the wrist protection pad, and a positioning finger sleeve for being sleeved on a thumb is arranged on the inner side surface of the middle of the restraint positioning belt; the rapid inflation device is detachably mounted on the waist and crotch protection pad, and the head protection air bag, the back protection air bag, the waist and crotch protection air bag and the wrist protection air bag are respectively connected with the rapid inflation device through air pipes.

As a further improvement of the invention, the intelligent sensing system comprises a three-axis acceleration sensor, a three-axis gyroscope, a microprocessor and a power supply, wherein the three-axis acceleration sensor and the three-axis gyroscope are respectively connected with the microprocessor, the microprocessor is connected with the power supply, and the microprocessor is connected with the quick inflation device.

As a further improvement of the invention, the three-axis acceleration sensor and the three-axis gyroscope are combined in pairs and installed in a small shell to form a sensing group, and the sensing group is arranged on the front and back sides of the upper ends of the two shoulder and chest restraint belts and the front and back sides and the left and right sides of the waist and crotch protection pads.

As a further improvement of the invention, a flexible buffer block corresponding to the spine of the human body is arranged at the center of the back protection air bag.

As a further improvement of the invention, the quick inflation device is provided with two quick inflation devices which are respectively arranged at two sides of the waist crotch protection pad, and the easy-to-break tearing piece adopts a magic tape.

As a further improvement of the invention, the protection device also comprises an alarm which is connected with the microprocessor, and when the microprocessor judges that the user falls down, the microprocessor controls the alarm to start and send an alarm signal to the periphery.

As a further improvement of the invention, the alarm adopts a sound-light alarm with recording, and the distress information of the user is pre-recorded in the sound-light alarm with recording.

As a further improvement of the present invention, the protection device further includes a communication module, the communication module is connected to the microprocessor, and the communication module is configured to send information monitored by the intelligent sensing system to a network server or a mobile terminal.

As a further improvement of the invention, the communication module adopts one or more of a 5G module, a Bluetooth module, a ZigBee module and a GPS module.

As a further improvement of the invention, the shoulder and chest restraint strap is also provided with a hanging buckle.

Compared with the prior art, the invention has the following advantages:

1) the invention has the advantages of ingenious structure and reasonable design, the head protection air bag and the back protection air bag in the head-back protection unit can protect the head and the vertebra when a user falls down through the synergistic effect of the head protection air bag and the back protection air bag in the head-back protection unit, the waist protection air bag in the waist protection unit surrounds and wraps the waist and the hip of the user after being inflated, the incidence rate of hip fracture can be greatly reduced, the wrist protection air bag in the wrist protection unit is wrapped at the far end of the radius right after being inflated and expanded, the incidence rate of wrist fracture of the user can be greatly reduced, and the comprehensive protection is greatly improved through the matched use of the air bags.

2) The three-axis acceleration sensor and the three-axis gyroscope are combined in pairs and installed in a small shell to form a sensing group, and the sensing groups are arranged on the front side and the rear side of the upper ends of the two shoulder and chest restraint belts and the front side and the rear side and the left side and the right side of the front part and the rear part of the waist and crotch protection pad, so that the sensing accuracy can be further improved, and the condition of information misinformation and missing report can be avoided.

3) The alarm is arranged in the invention, so that a person can call for help in time, and the alarm preferably adopts an audible and visual alarm with a recording function, so that personalized information can be pre-recorded, the passing rescuers are ensured not to dare to rescue due to trust problems, and the help obtaining probability of the users is greatly improved.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a schematic front view of an embodiment of the present invention (without the wrist protection unit).

Fig. 3 is a schematic diagram of a backside structure according to an embodiment of the invention.

Fig. 4 is a schematic diagram of the working principle of the embodiment of the invention.

Description of reference numerals: 1-a rapid inflation device, 2-a head and back protection unit, 2.1-a head and back protection pad, 2.1 a-an upper air bag cavity, 2.1 b-a lower air bag cavity, 2.2-a head protection air bag, 2.3-a back protection air bag, 2.4-a easily-broken tearing piece, 3-a waist and crotch protection unit, 3.1-a waist and crotch protection pad, 3.2-a waist and crotch protection air bag, 3.3-a buckle connecting piece, 4-a wrist protection unit, 4.1-a wrist protection pad, 4.2-a wrist protection air bag, 4.3-a restraint positioning belt, 4.4-a positioning finger sleeve, 5-a shoulder and chest restraint belt, 6-a chest restraint belt, 7-a three-axis acceleration transducer, 8-a three-axis gyroscope, 9-a microprocessor, 10-a power supply, 11-a small shell, 12-a flexible buffer block, a flexible buffer block, 13-alarm, 14-communication module, 15-storage module and 16-hanging buckle.

Detailed Description

The invention is further illustrated by the following specific figures and examples.

As shown in fig. 1 to 4, the embodiment discloses a wearable old people fall protection device, which comprises an intelligent sensing system for detecting that a user falls, a quick inflator 1 for inflating when the user falls, a head-back protection unit 2, a waist-crotch protection unit 3 and a wrist protection unit 4, wherein the head-back protection unit 2 comprises a head-back protection pad 2.1, a head protection airbag 2.2 and a back protection airbag 2.3, the head-back protection pad 2.1 is square, an upper airbag cavity 2.1a and a lower airbag cavity 2.1b are arranged in the head-back protection pad 2.1, the head protection airbag 2.2 is U-shaped, the head protection airbag 2.2 is arranged in the upper airbag cavity 2.1a in an upward opening manner, an opening for conveniently expanding and popping the head protection airbag 2.2 is formed in the top of the upper airbag cavity 2.1a, and a tearing part 2.4 is covered at the opening and easily torn; the back protection air bag 2.3 is in an elliptical ring shape, and the back protection air bag 2.3 is arranged in the lower air bag cavity 2.1 b; the waist and crotch protection unit 3 comprises a waist and crotch pad 3.1 and a waist and crotch protection air bag 3.2, the rear part of the waist and crotch pad 3.1 is integrally connected with the lower end of a head and back pad 2.1, the waist and crotch protection air bag 3.2 is arranged in the waist and crotch pad 3.1, the front side surface of the waist and crotch pad 3.1 is provided with a buckle connecting piece 3.3, two shoulder and chest restraint belts 5 are arranged on two sides of the upper end of the head and back pad 2.1 in an extending manner, the other ends of the two shoulder and chest restraint belts 5 are respectively connected with two sides of the front part of the waist and crotch pad 3.1, and the middle parts of the two shoulder and chest restraint belts 5 are provided with a chest auxiliary restraint belt 6 which can be mutually connected; the wrist protection unit 4 comprises a wrist protection pad 4.1, a wrist protection air bag 4.2 and a restraining and positioning belt 4.3, the wrist protection pad 4.1 is arc-shaped and is matched with the shape of the outer side of a wrist, the wrist protection air bag 4.2 is arranged in the wrist protection pad 4.1, the cross section of the wrist protection air bag 4.2 is arc-shaped, two ends of the restraining and positioning belt 4.3 are respectively connected to two sides of the wrist protection pad 4.1, and a positioning finger sleeve 4.4 used for being sleeved on a thumb is arranged on the inner side surface of the middle part of the restraining and positioning belt 4.3; the rapid inflation device 1 is detachably mounted on the waist and crotch protection pad 3.1, and the head protection air bag 2.2, the back protection air bag 2.3, the waist and crotch protection air bag 3.2 and the wrist protection air bag 4.2 are respectively connected with the rapid inflation device 1 through air pipes.

When the protective device is used specifically, a user wears the protective device on the body, the intelligent sensing system and the quick inflation device 1 are firstly opened when going out, the intelligent sensing system and the quick inflation device 1 automatically enter a working state, and the head protective air bag 2.2, the back protective air bag 2.3, the waist and hip protective air bag 3.2 and the wrist protective air bag 4.2 are in a folding state when not started to be inflated. In the using process, the intelligent sensing system monitors the acceleration and body posture information of a user in real time and sends the information to the microprocessor 9, the microprocessor 9 judges whether the person falls down by combining the information with the human motion model and the threshold value of the motion model, and controls the quick inflation device 1 to start when judging that the user falls down, and the quick inflation device rapidly inflates the head protection airbag 2.2, the back protection airbag 2.3, the waist and hip protection airbag 3.2 and the wrist protection airbag 4.2. The head protection air bag 2.2 is U-shaped after being inflated and ejected out from the opening of the upper air bag cavity 2.1a, and is just padded at the back of the head of a human body, so that the head of a user can be prevented from being impacted. The back protection air bag 2.3 is annular after being inflated, the back of a patient can be protected, and most of the part of the back protection air bag 2.3 corresponding to the spine is suspended after being inflated, so that the impact on the spine when the back protection air bag 2.3 is inflated and expanded can be reduced. The waist and crotch protection air bag 3.2 is inflated to surround and wrap the waist and crotch of a user, so that the incidence rate of hip fracture can be greatly reduced. The wrist protecting air bag 4.2 is just wrapped at the far end of the radius after being inflated and expanded, so that the occurrence rate of wrist fracture of a user can be greatly reduced. Because the quick inflator 1 is detachably mounted on the waist crotch pad 3.1, the quick inflator 1 can be conveniently overhauled, maintained and replaced.

As shown in fig. 4, in this embodiment, the intelligent sensing system includes a three-axis acceleration sensor 7, a three-axis gyroscope 8, a microprocessor 9, and a power supply 10, where the three-axis acceleration sensor 7 and the three-axis gyroscope 8 are respectively connected to the microprocessor 9, the microprocessor 9 is connected to the power supply 10, and the microprocessor 9 is connected to the rapid inflation device 1. So set up, through triaxial acceleration sensor 7 and the synergism of triaxial gyroscope 8, can more accurately perceive user's acceleration and health attitude information. Of course, the intelligent sensing system can also adopt other conventional concepts in the prior art, as long as the body posture information of the user can be accurately monitored, and a signal can be sent when the user falls. In the present invention, the microprocessor 9 and the power supply 10 are small components, and can be directly plugged into the head and back protection pad 2.1 or the waist and crotch protection pad 3.1.

As shown in fig. 1 to fig. 3, in the present embodiment, two three-axis acceleration sensors 7 and three-axis gyroscopes 8 are combined and installed in a small housing 11 to form a sensing set, and one sensing set is installed on each of the front and rear sides of the upper ends of the two shoulder-chest restraint belts 5 and the front and rear left and right sides of the waist-crotch pad 3.1. So set up, can further promote the perception degree of accuracy, avoid appearing the information wrong report condition of failing to report.

In the present embodiment, as shown in fig. 3, a flexible buffer block 12 corresponding to the spine of the human body is arranged at the center of the back protection airbag 2.3. So set up, back protection gasbag 2.3 aerify the inflation back and flexible buffer block 12 cooperation provide the buffering for user's back together, and the protection effect is better. The flexible bumper 12 may be made of a conventional material in the art, such as sponge, latex, etc.

As shown in fig. 1 to fig. 3, in this embodiment, there are two rapid inflators 1, and the two rapid inflators 1 are respectively installed on the easily-torn member 2.4, preferably, magic tapes are used, so that the installation and smooth inflation and ejection of the head protection airbag 2.2 are facilitated.

As shown in fig. 4, in this embodiment, the protection device further includes an alarm 13, the alarm 13 is connected to the microprocessor 9, and when the microprocessor 9 determines that the user is about to fall down, the microprocessor 9 controls the alarm 13 to start and send an alarm signal to the surroundings. The alarm 13 is preferably a sound-light alarm 13 with recording, and distress information of a user, such as contact information of family members, can be pre-recorded in the sound-light alarm 13 with recording to inform a rescue party of data recording, so that the other party does not need to worry about corrupted information and the like.

As shown in fig. 4, in this embodiment, the protection device further includes a communication module 14 and a storage module 15, the communication module 14 and the storage module 15 are respectively connected to the microprocessor 9, the communication module 14 is configured to send information monitored by the intelligent sensing system to the network server or the mobile terminal, the information sent to the network server may be used for later data analysis, the information sent to the mobile terminal may prompt a family member of a user in time, and the storage module 15 is configured to store the information monitored by the intelligent sensing system locally, so as to adapt to a situation where instant data transmission cannot be performed. The communication module 14 may be a conventional product in the prior art, such as a 5G module, a bluetooth module, a ZigBee module, a GPS module, or a combination of one or more of the above modules, so that the information of the user can be accurately and timely obtained, and the rescue can be conveniently and timely performed. The memory module 15 may employ a conventional memory.

As shown in fig. 1 and 2, in the present embodiment, the shoulder and chest restraint strap 5 is further provided with a hanging buckle 16. The arrangement is convenient for a user to hang some articles which are inconvenient to be held in a pocket.

The rapid inflator 1 of the present invention may be conventional products in the prior art, such as a gas generator, a gas booster pump, etc., which are various and mature in technology and can be started as long as a control signal is received, and since the structure of the rapid inflator 1 is not an innovation point of the present invention and the related technology belongs to the conventional technology, further description is not provided herein.

The above description is only for the preferred embodiment of the present invention, and the above specific embodiments are not intended to limit the present invention. Various modifications and alterations may occur to those skilled in the art without departing from the spirit and scope of the invention, and such modifications and alterations should be accorded the broadest interpretation so as to encompass all such modifications and alterations.

Claims (10)

1. Wearing formula old person's protection device that tumbles, including being used for detecting the intelligent perception system that the user will tumble and will tumble at the user and carry out quick aerating device (1) aerifing, its characterized in that: the head and back protection device is characterized by further comprising a head and back protection unit (2), a waist and crotch protection unit (3) and a wrist protection unit (4), wherein the head and back protection unit (2) comprises a head and back protection pad (2.1), a head protection air bag (2.2) and a back protection air bag (2.3), the head and back protection pad (2.1) is square, an upper air bag cavity (2.1a) and a lower air bag cavity (2.1b) are arranged in the head and back protection pad (2.1), the head protection air bag (2.2) is U-shaped, the head protection air bag (2.2) is arranged in the upper air bag cavity (2.1a) in an upward opening mode, an opening facilitating expansion and ejection of the head protection air bag (2.2) is formed in the top of the upper air bag cavity (2.1a), and a tearing part (2.4) easy to break is covered at the opening; the back protection air bag (2.3) is in an elliptical ring shape, and the back protection air bag (2.3) is arranged in the lower air bag cavity (2.1 b); the waist and crotch protection unit (3) comprises a waist and crotch pad (3.1) and a waist and crotch protection air bag (3.2), the rear part of the waist and crotch pad (3.1) is integrally connected with the lower end of the head and back pad (2.1), the waist and crotch protection air bag (3.2) is arranged inside the waist and crotch pad (3.1), the front side surface of the waist and crotch pad (3.1) is provided with a buckle connecting piece (3.3), two shoulder and chest restraint belts (5) are arranged on two sides of the upper end of the head and back pad (2.1) in an extending mode, the other ends of the two shoulder and chest restraint belts (5) are respectively connected to two sides of the front part of the waist and crotch pad (3.1), and the middle parts of the two shoulder and chest restraint belts (5) are provided with a chest auxiliary restraint belt (6) capable of being connected with each other; the waist crotch protection air bag (3.2) is arranged inside the waist crotch protection pad (3.1); the wrist protection unit (4) comprises a wrist protection pad (4.1), a wrist protection air bag (4.2) and a restraining and positioning belt (4.3), the wrist protection pad (4.1) is arc-shaped and is matched with the shape of the outer side of a wrist, the wrist protection air bag (4.2) is arranged in the wrist protection pad (4.1), the cross section of the wrist protection air bag (4.2) is arc-shaped, two ends of the restraining and positioning belt (4.3) are respectively connected to two sides of the wrist protection pad (4.1), and a positioning finger sleeve (4.4) used for being sleeved on a thumb is arranged on the inner side face of the middle of the restraining and positioning belt (4.3); the rapid inflation device (1) is detachably mounted on the waist and crotch protection pad (3.1), and the head protection air bag (2.2), the back protection air bag (2.3), the waist and crotch protection air bag (3.2) and the wrist protection air bag (4.2) are respectively connected with the rapid inflation device (1) through air pipes.

2. A wearable elderly fall protection device as claimed in claim 1, wherein: the intelligent sensing system comprises a triaxial acceleration sensor (7), a triaxial gyroscope (8), a microprocessor (9) and a power supply (10), wherein the triaxial acceleration sensor (7) and the triaxial gyroscope (8) are respectively connected with the microprocessor (9), the microprocessor (9) is connected with the power supply (10), and the microprocessor (9) is connected with the quick inflation device (1).

3. A wearable elderly fall protection device as claimed in claim 2, wherein: two-two combination of triaxial acceleration sensor (7) and triaxial gyroscope (8) are installed in a little casing (11) and are constituted a sensing group, all are provided with a sensing group in the upper end front and back side of two shoulder chest restraint straps (5) and the front and back left and right sides of waist crotch portion protection pad (3.1).

4. A wearable elderly fall protection device as claimed in claim 1, wherein: the center of the back protection air bag (2.3) is provided with a flexible buffer block (12) corresponding to the vertebra of the human body.

5. A wearable elderly fall protection device as claimed in claim 1, wherein: the two rapid inflation devices (1) are respectively arranged at the left side and the right side of the waist crotch protection pad (3.1), and the easy-to-break tearing piece (2.4) adopts a magic tape.

6. A wearable elderly fall protection device as claimed in claim 1, wherein: the protection device further comprises an alarm (13), the alarm (13) is connected with the microprocessor (9), and when the microprocessor (9) judges that the user falls down, the microprocessor (9) controls the alarm (13) to start and send an alarm signal to the periphery.

7. A wearable elderly fall protection device as claimed in claim 6, wherein: alarm (13) adopt audible-visual alarm (13) of taking the recording, record user's SOS information in advance in audible-visual alarm (13) of taking the recording.

8. A wearable elderly fall protection device as claimed in claim 1, wherein: the protection device further comprises a communication module (14) and a storage module (15), wherein the communication module (14) and the storage module (15) are respectively connected with the microprocessor (9), the communication module (14) is used for sending information monitored by the intelligent sensing system to a network server or a mobile terminal, and the storage module (15) is used for storing the information monitored by the intelligent sensing system locally.

9. A wearable elderly fall protection device as claimed in claim 8, wherein: the communication module (14) adopts one or more of a 5G module, a Bluetooth module, a ZigBee module and a GPS module.

10. A wearable elderly fall protection device as claimed in claim 1, wherein: the shoulder and chest restraint strap (5) is also provided with a hanging buckle (16).

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