A seat

Abstract

This invention discloses a seating arrangement including a seat, a backrest, a headrest, and a safety restraint strap. The headrest has a base and two side portions extending from the base to both sides. The safety restraint strap has shoulder straps with two positions: a use position, in which the shoulder straps are vertical / diagonal and press against the shoulders / upper body of the seated person; and a non-use position, in which the shoulder straps are removed from the shoulders of the seated person so that the seated person can move out of or into the seat. The key feature is that, in the non-use position, at least a portion of each shoulder strap is attached to the surface of the side portion of the headrest, thereby removing the shoulder straps of the safety restraint strap from their vertical / diagonal state against the backrest. The state of the safety restraint straps can be adjusted and controlled to meet the user's needs. This seating arrangement offers high safety performance and is widely applicable to various usage scenarios.

Description

Technical Field

[0001] This invention relates to a seated position. Background Technology

[0002] Typically, occupants are secured in a seat using safety restraints. Safety restraint systems generally employ a five-point harness, consisting of two straps. Each strap has a shoulder strap that extends vertically or diagonally along the front surface of the backrest. The top and bottom of the shoulder strap are secured to the seat, which rests on a base. When the seat is in use, the shoulder straps press vertically against the occupant's shoulders or diagonally against their upper body. The shoulder straps also have a crotch strap integrated with the seat base. The free end of the crotch strap has a suitable locking device, such as a buckle, for connecting two hooks mounted on each shoulder strap. When the occupant is seated, the shoulder straps connect to the crotch strap via the hooks and buckles, thus securing the occupant in the seat supported by the base.

[0003] The shoulder straps can also be fitted with hollow sleeves. These sleeves cover part of the shoulder straps, particularly the areas corresponding to the occupant's torso and shoulders. The sleeves are generally made of textiles or textile-covered foam, with the portion in contact with the occupant typically made of a high-friction material. This allows them to adhere to the occupant's clothing for better restraint, providing enhanced protection, especially in the event of an accident, and also improving comfort. The sleeves can be fixedly attached to the shoulder straps or fitted directly onto them; when fitted, the shoulder straps can also move within the sleeves.

[0004] The drawback of this type of seating is that it is often difficult to position the person in the seat, especially to install safety restraints. In fact, when the seat is empty, the unused shoulder straps usually lie along the backrest and seat. Thus, when the person needs to be seated, they are likely to sit on the shoulder straps. This is not only uncomfortable for the person seated, but also inconvenient for the accompanying person. The accompanying person must first rely on their senses to find the shoulder straps behind the person, while simultaneously trying to lift the person to release the straps. The accompanying person needs to lift the person with one hand and then use the other to complete these actions, which can be frantic and cumbersome. Furthermore, supporting the person with one hand also poses certain safety risks.

[0005] The applicant has previously proposed several solutions to the aforementioned problems, including devices for removing the safety restraints from the area where the seated person is placed, by attaching the restraints to the side of the seat. For example, hooks could be installed on the side of the seat back to hook the shoulder straps or sheaths of the safety restraints. The hooks could also be replaced with magnets, or pairs of magnetic elements could be provided, inserted into the sheaths and the side of the seat back, respectively.

[0006] The above solution addresses the placement of safety restraints when not in use, but requires the user to operate the restraints, pulling them to separate them and then securing them outside the seating area. Operating the restraints can be inconvenient or difficult, especially when the operator must simultaneously attend to the seated person; in such cases, operating the restraints becomes distracting and strenuous. Furthermore, when the restraints are fixed to the back of the seat, they are easily overlooked, creating a blind spot. Additionally, placing the restraints on the side of the seat requires re-operation to return them to their original position after the seated person has moved in, which is inconvenient for both the seated person and accompanying person. Moreover, the hooks on the side of the seat back pose a safety hazard, as the hooks could easily injure the seated person or accompanying person.

[0007] Furthermore, the above solution is not suitable for seating positions with height-adjustable safety restraints, such as those where the restraints are attached to height-adjustable headrests, and the restraint height is adjusted by adjusting the headrest. In this case, the position of the hooks or magnets may not be ergonomically sound, especially when they are at their highest or lowest extreme adjustment positions. Generally, the ideal position for hooks or magnets is in the middle; positions that are too high or too low are unsuitable and will cause operational inconvenience.

[0008] The applicant has also proposed other solutions to the above problems, including using a spring inside the sheath, or connecting one end of the spring to the safety restraint strap and the other end to the seat back, using the spring's elastic restoring force to pull the safety restraint strap. In use, the spring is pre-stressed so that when the safety restraint strap is not in use, it is pulled to a straight, approximately perpendicular position to the backrest, thus facilitating the seating of the occupant.

[0009] A significant drawback of this approach is its limitation by the structure of the safety restraint strap, making it unsuitable for all types of safety restraint straps, especially when the strap is connected to a retractor. When the safety restraint strap is connected to a retractor, the tension of the strap is adjusted by the retractor's winding mechanism. In fact, in this situation, when the retractor is activated to tension the strap, the spring connected to the strap not only fails to assist the retractor but also hinders winding; the spring may generate resistance, preventing or disrupting the strap's retraction.

[0010] Furthermore, installing springs also poses certain safety hazards, especially for younger individuals. Because springs need to store sufficient elastic potential energy to engage the safety restraints, they generate significant tension during use, potentially injuring the seated person or accompanying person. Summary of the Invention

[0011] The purpose of this invention is to provide a seating position with adjustable and controllable safety restraints. By adjusting the different states of the safety restraints, it can switch between a usable position and an in-use position to meet the user's needs. This seating position has high safety performance and can be widely used in various places.

[0012] This objective of the present invention is achieved through the following technical solution:

[0013] A seating position includes a seat, a backrest, a headrest, and a safety restraint strap. The headrest has a base and two side portions extending from the base to both sides. The safety restraint strap has shoulder straps that have two positions.

[0014] - Position of use, in which the shoulder straps are vertical / diagonal and press against the shoulders / upper body of the seated person;

[0015] - In the non-use position, the shoulder strap is removed from the seated person's shoulder so that the seated person can move out of or into the seat.

[0016] The feature is that, in the non-use position, at least a portion of each shoulder strap is attached to the surface of the side portion of the headrest, thereby removing the shoulder straps of the safety restraint belt from their vertical / diagonal position attached to the backrest.

[0017] The state of the safety restraints is adjusted and controlled to meet the user's needs.

[0018] In the seating arrangement of this invention, when the shoulder straps are in the non-use position, at least a portion of each shoulder strap is connected to the surface of the side of the headrest. By adjusting the different states of the safety restraint straps, the safety restraint straps can be switched between the use position and the non-use position to meet the different usage needs of the occupant. This does not affect the normal use of the headrest, nor does it affect the overall structure of the seating arrangement.

[0019] In a preferred embodiment, at least a portion of the lower surface of the two sides of the headrest protrudes outward relative to the front surface of the backrest; in the non-use position, at least a portion of each shoulder strap is connected to the exposed portion of the lower surface of the side of the headrest.

[0020] This invention modifies the structure by making the lower surface of the headrest side protrude outward relative to the front surface of the backrest. By making a slight adjustment to the headrest structure, the exposed part of the lower surface of the headrest can serve as the connection and positioning part for the shoulder strap of the safety restraint belt. However, this slight adjustment provides a connection platform for the shoulder strap of the safety restraint belt to be kept in the non-use position, ensuring that the shoulder strap can be kept in the unfolded state.

[0021] Meanwhile, the shoulder strap of the safety restraint belt is connected to the lower surface of the headrest. This position is at a suitable and comfortable height for the operator, conforms to ergonomics, and the connection part is a concealed part that is not easily accessible. After connection, it will not touch the seated person or accompanying person, eliminating the safety hazard of accidental injury to the seated person or accompanying person, and ensuring high safety in use.

[0022] When the harness needs to be in a non-use position, the operator simply adjusts the state of the safety restraint strap by moving the shoulder strap from its attached vertical / diagonal position to an extended position. The shoulder strap is then attached to the exposed portion of the lower surface of the headrest side. When in the non-use position, the shoulder strap naturally extends to facilitate insertion, creating a space that allows the user to easily move out or in, without the user pressing on the restraint strap. This is especially beneficial when an accompanying person needs to lift or place the user, freeing their hands to care for them. The shoulder strap in this invention can be a solid flat strap, a hollow shoulder strap sleeve, or a shoulder strap sleeve with a shoulder strap sleeve. In the non-use position, at least a portion of the shoulder strap and / or the shoulder strap sleeve is attached to the exposed portion of the lower surface of the headrest side. The shoulder strap and / or shoulder strap sleeve are typically made of textiles.

[0023] This invention places the shoulder strap sleeve on the lower surface of the headrest, making it easier to use the safety restraints when positioning and removing a seated person. In fact, this position of the shoulder strap sleeve is more intuitive for the user when the safety restraints are in the non-use position, eliminating the need to search for the fastening elements mounted on the side or back of the backrest.

[0024] The present invention can be improved as follows: the seat further includes a spacer for holding the shoulder strap and / or the shoulder strap sleeve in the non-use position.

[0025] When the safety restraint strap is not attached to the lower surface of the headrest, the spacer allows the user to operate the shoulder strap sleeve to move away from the space where the occupant is seated, that is, to move away from the position of use. The movement of the shoulder strap sleeve simultaneously moves the safety restraint strap away.

[0026] This method is intuitive and simple, and in some seating configurations, the removal of the shoulder strap sleeve can be automatic. This eliminates the need for hooks or magnets on the backrest edge, and users no longer need to search for them. Simply lift the shoulder strap sleeve to release the seated person, then attach the shoulder strap sleeve against the underside of the headrest. Since the shoulder strap sleeve essentially moves away, and consequently the safety restraints also move away, it becomes much easier to remove the seated person from the seat.

[0027] In a preferred embodiment, the spacer includes compatible magnetic elements / Hook and loop fasteners / buckles that are connected to each other in the non-use position, with at least one magnetic element / Hook and loop fastener disposed on the shoulder strap and / or the shoulder strap cover, and engaging with at least one magnetic element / Hook and loop fastener on the exposed portion of the lower surface of the side of the headrest.

[0028] The spacer device of the present invention includes a matching magnetic element / Velcro / buckle, which enables a seamless connection between the shoulder strap and / or shoulder strap cover and the lower surface of the headrest. Since the spacer device is hidden between the shoulder strap and / or shoulder strap cover and the lower surface of the headrest after the connection, the safety of use is increased, preventing the spacer device from being exposed and causing accidents such as touching or scratching the seated person, thus avoiding safety hazards.

[0029] Meanwhile, the magnetic components / Hook and loop fasteners / Snap fasteners are attached to the underside of the shoulder strap or headrest, unlike hooks or clips that protrude. Therefore, even when the magnetic components / Hook and loop fasteners / Snap fasteners are separated in the use position, they will not scratch the seated person or accompanying person, ensuring high safety.

[0030] Using spacers in the shoulder straps and / or shoulder strap covers and headrests is simple and convenient, making safety restraints easy to use. For example, magnetic components can achieve a dual function: automatically repositioning the shoulder strap cover along the headrest and then maintaining contact between the shoulder strap cover and the headrest.

[0031] Of course, one of the magnetic components can be replaced with a metal component that magnetically attracts the magnetic component.

[0032] The spacer device of the present invention, whether using magnetic attraction, adhesive fasteners, snap fasteners, or raised and recessed structures, is always hidden after connection, making it not only safe and reliable but also aesthetically pleasing.

[0033] The present invention can be improved as follows: the shoulder strap and / or the shoulder strap sleeve are provided with a flexible plate along the length direction, and the flexible plate is at least partially located inside the shoulder strap and / or the shoulder strap sleeve.

[0034] This flexible panel can be integrally molded with the shoulder straps and / or shoulder strap covers to introduce a certain degree of stiffness / rigidity into the shoulder strap covers, thereby facilitating the transfer of the shoulder strap covers from a non-use position to a use position. Therefore, when the safety restraint strap is not connected to a non-use position, the flexible panel can straighten and extend the safety restraint strap, and then connect the safety restraint strap to the exposed portion of the lower surface of the headrest through a spacer device, that is, to a position outside the space of the seated occupant.

[0035] By using both flexible panels and spacers, the combination of the two makes the user experience more intuitive and simple.

[0036] The present invention can also be improved as follows: the spacing device further includes a bistable plate disposed at least partially along the length direction of the shoulder strap and / or the shoulder strap sleeve, the bistable plate having two positions corresponding to the use position and non-use position of the shoulder strap and / or the shoulder strap sleeve, respectively.

[0037] A bistable plate is a rigid plate that ensures the shoulder strap sleeve remains stable in both the non-use and use positions. It is named a bistable plate because of this bistable effect. The bistable effect of the bistable plate allows for stable transitions between the non-use and use positions, and vice versa. The bistable plate can be built into the shoulder strap sleeve or attached to its surface, making it simple and intuitive to use.

[0038] The invention can also be improved as follows: the spacer further includes a molded plate made of plastic material, the molded plate extending at least partially along the length of the shoulder strap and / or the shoulder strap sleeve.

[0039] A molded plate is a sheet material with a certain degree of flexibility and rigidity. The molded plate is built into the shoulder strap sleeve or attached to the surface of the shoulder strap sleeve, just like a mold. Hence the name molded plate. The flexibility and rigidity of the molded plate are between those of a flexible plate and a bistable plate.

[0040] One end of the molded plate is specifically hinged to the shoulder strap and / or the shoulder strap sleeve via a hinge point. Specifically, the shoulder strap and / or the shoulder strap sleeve has a rotating hinge shaft at the end near the backrest. This rotating hinge shaft is a spring pin. The molded plate is fitted onto the spring pin, and a restoring force is applied to the molded plate through the spring pin to drive the shoulder strap and / or the shoulder strap sleeve from the non-use position to the use position.

[0041] The spring pin also includes a locking mechanism that locks the shoulder strap sleeve in a non-use position.

[0042] In a preferred embodiment of the present invention, the headrest is height-adjustable, and in particular, the shoulder straps and the headrest move synchronously in height when the headrest is adjusted.

[0043] This invention is indeed fully adaptable to / compatible with the use of adjustable headrests. In this way, the use of safety restraints is simplified regardless of the age, size, or position of the occupant. In fact, adjustments to the upper part of the safety restraints and the shoulder straps are related to the adjustment of the adjustable headrest. Therefore, the relative position of the shoulder straps to the headrest remains constant. When the headrest is adjusted to the desired height according to the occupant's size, the shoulder straps automatically rise to the required height in their non-use position; that is, the shoulder straps and headrest move synchronously in height during headrest adjustment, making it more convenient and easier for the occupant to use.

[0044] The seating arrangement of the present invention also includes a retractor for winding up the safety restraint belt.

[0045] The movement of the shoulder strap in the direction of the headrest side substantially corresponds to the movement of the safety restraint strap when the retractor is activated. The shoulder strap of this invention does not interfere with the winding of the safety restraint strap via the retractor, but rather facilitates the transition of the safety restraint strap from its non-use position to its use position through the winding operation of the retractor or through operation on the safety restraint strap itself.

[0046] When it is necessary to switch the safety restraint belt from the non-use position to the use position, the retractor automatically winds up the safety restraint belt, causing the spacers to separate, and then the safety restraint belt is pulled to the use position; when it is necessary to switch the safety restraint belt from the use position to the non-use position, the retractor winds up the safety restraint belt, causing the safety restraint belt to travel a certain distance, and then the spacers are manually operated to engage the spacers, connecting the safety restraint belt to the non-use position.

[0047] Therefore, when the safety restraint strap is not connected to the exposed part of the underside of the headrest, i.e., when the safety restraint strap is in the use position, the user can easily switch between the use position and the non-use position by simply operating the shoulder strap sleeve. Attached Figure Description

[0048] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0049] Figure 1 This is a side view of the seat position of the present invention, in which the user is facing outward relative to the base.

[0050] Figure 2 This is another side view of the seated position of the present invention, relative to... Figure 1 Rotate 180° so that the user faces inward relative to the base when using it;

[0051] Figure 3 This is a schematic diagram of the headrest and shoulder strap sleeve in the seat position of the present invention, and shows two different states of the shoulder strap sleeve in the use position (shown by solid lines) and the non-use position (shown by dashed lines);

[0052] Figure 4 This is a partial structural diagram of the seating position of the present invention, showing the structure and position of the first type of partition device;

[0053] Figure 5 This is a partial structural diagram of the seating position of the present invention, showing the structure and position of the second type of partition device;

[0054] Figure 6 This is a partial structural diagram of the seating position of the present invention, showing the structure and position of the third type of partition device;

[0055] Figure 7 This is a partial structural diagram of the seating position of the present invention, showing the structure and position of the fourth type of partition device. Detailed Implementation

[0056] like Figure 1 and Figure 2 As shown, the seat 1 of the present invention includes a seat 11, a backrest 12, a height-adjustable headrest 13, and a safety restraint strap 14. The safety restraint strap 14 is equipped with buckles and has shoulder straps. The safety restraint strap 14 restrains the seated person to the seat 1 via the shoulder straps. The tension of the safety restraint strap 14 is adjusted and controlled by a retractor 15 located in the seat 1. The retractor 15 acts on the rear portion of the safety restraint strap 14 extending into the backrest 12 and seat 11, pressing the shoulder straps of the safety restraint strap 14 against the seated person's shoulder or body in a sufficiently controlled manner. In use, the seat 1 can be mounted on a base 16 for supporting the seat 1 using clamps. When using the seat 1 of the present invention, the seated person can face outwards relative to the base 16, such as... Figure 1 As shown, or it can also face inwards towards the base 16, as... Figure 2 As shown.

[0057] like Figure 3The adjustable headrest 13 of the seat 1 shown. The headrest 13 has a base 131 and two side portions 132 located on both sides of the base 131. The headrest 13 has an upper surface 133 that extends from the top of the base 131 to the front of the headrest 13 at the level of the side portions 132.

[0058] Each side portion 132 has a lower surface 134, at least a portion of the lower surfaces 134 of the two side portions 132 protruding relative to the front surface of the backrest 12, thus being exposed. In other words, when a occupant is seated in the seat 1, at least a portion of the lower surfaces 134 of the two side portions 132 protrudes relative to the front surface of the backrest 12 and is positioned above the occupant's shoulders. As a preferred embodiment, the spacing angle of the side portions 132 is adjustable, particularly by means of the angle formed between the side portions 132 and the base 131.

[0059] The headrest 13 in this embodiment is height-adjustable to suit occupants of different ages. The shoulder straps of the safety restraint belt 14 are connected to the headrest 13, for example, by means of a plate or bar connected to the headrest 13, so that the shoulder straps and the headrest 13 are adjusted in height synchronously.

[0060] In this embodiment, a shoulder strap sleeve 2 is fitted over the shoulder strap. As a variation of this embodiment, the shoulder strap can also be a solid flat strap, or the shoulder strap can be a hollow shoulder strap sleeve 2. Both the shoulder strap and / or the shoulder strap sleeve 2 can be made of textiles.

[0061] Figure 3 Shoulder strap sleeves 2 are shown on the shoulder straps (not shown) used on the safety restraint belt 14. The shoulder straps can be connected to the backrest 12 or headrest 13 via a linkage, thereby enabling them to be effectively placed on the shoulders and / or torso of the occupant and to effectively perform their functions.

[0062] When using the shoulder strap cover 2 of the present invention, instead of placing the shoulder strap cover 2 along the side wall of the backrest 12 or holding them in the free space in front of the backrest 12 by springs, the shoulder strap cover 2 is directly connected to the lower surface 134 of the headrest 13. More precisely, the shoulder strap cover 2 is connected to the exposed portion of the lower surface 134 of the side 132 of the headrest that protrudes outward relative to the front surface of the backrest 12.

[0063] The present invention provides several advantages in providing the shoulder strap cover 2 and connecting it to the lower surface 134 of the headrest 13. First, the connection is simple and effective, without needing to consider the size of the occupant or the position of the safety restraint belt 14. Second, the adjustment of the shoulder strap cover 2's position is related to the adjustment of the headrest 13. Therefore, the relative position of the shoulder strap cover 2 with respect to the headrest 13 remains constant.

[0064] In addition, the shoulder strap cover 2 is intuitive and convenient to use. Users do not need to look for hooks or magnets on the edge of the backrest 12; they can simply lift the shoulder strap cover 2 to release the seated person and then attach the shoulder strap cover 2 to the headrest 13.

[0065] In a preferred embodiment, the seat 1 also includes a spacer 3 for holding the shoulder straps 2 at the connection with the lower surface 134 of the headrest side 132, which moves and / or keeps the shoulder straps 2 facing the lower surface 134 of the headrest 13 when the safety restraint strap 14 is not locked.

[0066] More precisely, the shoulder strap and shoulder strap sleeve 2 have two positions: a usage position and a non-use position, and the shoulder strap sleeve 2 can switch between these two positions:

[0067] - At least one usage location of the safety restraint belt 14, such as Figure 3 The solid line indicates that, in this position, the shoulder strap 2 is attached vertically / diagonally to the backrest 12 and presses against the seated person's shoulder / upper body to keep the seated person in place, especially in the event of an accident.

[0068] - Non-use positions of safety restraint belt 14, such as Figure 3 The dotted line indicates that, in this position, the shoulder strap 2 is moved from its vertical / diagonal position, where it is attached to the shoulder / upper body and backrest 12, and pulled up to a roughly horizontal position. After unfolding, it is connected to the exposed portion of the lower surface 134 of the side 132 of the headrest 13 via the spacer 3. The shoulder strap 2 remains in the extended position to facilitate placing the occupant on or removing them from the seat 1. When straightened and unfolded, the shoulder strap 2 is approximately perpendicular to the seat backrest 12.

[0069] Therefore, the user's needs can be met by adjusting and controlling the state of the safety restraint belt 14.

[0070] Assuming that the lower surface 134 of the side 132 of the headrest 13 is not designed to protrude relative to the front surface of the backrest 12, although the shoulder straps connected to the two side 132 surfaces of the headrest 13 are not located in the center of the backrest 12 and do not prevent the occupant from leaning their back against the backrest 12 when seated, there may be a situation where, because the shoulder straps are very close to the front surface of the backrest 12, the occupant still needs to pull the shoulder straps with their hands before their arms can pass through them, and then the buckles are locked after the occupant's arms have passed through the shoulder straps.

[0071] In this embodiment, since the lower surfaces 134 of the two sides 132 of the headrest 13 both protrude from the front surface of the backrest 12, when a part of the shoulder strap is connected to the lower surface 134 of the side 132, the shoulder strap is not only restricted to a non-use position that does not contact the front surface of the backrest 12, but more importantly, the shoulder strap is lifted and kept in a roughly horizontal state, that is, the shoulder strap is spaced apart from the front surface of the backrest 12 and forms a sufficiently large gap, so that when sitting, the occupant's arm can pass directly through the gap without any other operation.

[0072] The spacer device 3 of the present invention allows the shoulder strap sleeve 2 to be connected to or removed from the lower surface 134 of the headrest 13, thereby removing the back strap of the safety restraint belt 14 away from the occupant space in the seat 1. The movement of the shoulder strap sleeve 2 is as follows: Figure 3 As shown by arrow 21 in the image.

[0073] In this invention, in the non-use position, the shoulder strap 2 is at least partially pressed against the exposed portion of the lower surface 134 of the side portion 132 of the headrest 13, which protrudes relative to the front surface of the backrest 12. The shoulder strap 2 is pressed / pulled under the side portion 132 of the headrest 13 to facilitate placing the occupant on or removing them from the seat 1.

[0074] The height adjustment of seat 1 will not interfere with the operation of spacer 3. The user does not need to make any additional adjustments or operations to adapt spacer 3 to the height adjustment of headrest 13.

[0075] Furthermore, the displacement of the shoulder strap sleeve 2 in the direction of the side portion 132 of the headrest 13 corresponds to the displacement of the retractor 15 as it winds up the safety restraint strap 14. Therefore, the shoulder strap sleeve 2 does not interfere with the normal operation of the retractor 15 in winding up the safety restraint strap 14, but is driven to this non-use position by the movement of the retractor 15 on the safety restraint strap 14.

[0076] When the safety restraint strap 14 is connected to the lower surface 134 of the headrest 13, the shoulder strap sleeve 2 can be automatically switched from the use position to the non-use position by the retractor 15 to retract the safety restraint strap 14 without user operation. During the retraction process, the spacer device 3 is released from the restraint, causing the shoulder strap sleeve 2 to separate from the lower surface 134 of the headrest 13.

[0077] In the following description Figures 4 to 7 In the image, shoulder strap sleeve 2 is shown in two positions: the non-use position (indicated by a dashed line) and the use position (indicated by a solid line).

[0078] The spacer 3 of the present invention can adopt various structures. For example, the spacer 3 may include compatible magnetic elements / Hook and loop fasteners / buckles that are connected to each other when not in use, with at least one magnetic element / Hook and loop fastener disposed on the shoulder strap and / or shoulder strap sleeve 2 and cooperating with at least one magnetic element / Hook and loop fastener on the exposed portion of the lower surface 134 of the side 132 of the headrest 13.

[0079] The first structure of the spacer 3 is as follows Figure 4 As shown.

[0080] The spacing device 3 is a first magnet 31 that extends at least partially along each shoulder strap sleeve 2. Specifically, the first magnet 31 is along the upper surface of the shoulder strap sleeve 2, that is, the surface opposite to the surface that contacts the seated person, which is the lower surface of the shoulder strap sleeve 2.

[0081] Each side 132 of the headrest 13 has a second magnet 32 ​​adapted to the first magnet 31 on its exposed portion of the lower surface 134. The adapted second magnet 32 ​​is designed to magnetically engage with one of the first magnets 31 of the spacer 3. Each second magnet 32 ​​is located on the exposed portion of the front end of the lower surface 134 of the side 132, that is, at the end of the side 132 adjacent to the front surface of the backrest 12.

[0082] Using the first magnet 31 and the second magnet 32 ​​in the shoulder strap sleeve 2 and the headrest 13 is simple and convenient, and the safety restraint belt 14 can be easily manipulated. Of course, one of the first magnet 31 and the second magnet 32 ​​can also be replaced with a metal element that can be magnetically attracted to a magnet.

[0083] As a variation of this embodiment, the first magnet 31 and the second magnet 32 ​​can also be implemented using alternative structures such as Velcro fastening, snap fastening, or interlocking convex and concave parts.

[0084] The second structure of the spacer device 3 of the present invention is as follows: Figure 5 As shown.

[0085] In addition to the first magnet 31 and the second magnet 32 ​​described in the first structure, the spacer 3 also includes a flexible plate 33, as shown by the dotted line in the figure. The flexible plate 33 is flexible and preferably made of plastic material.

[0086] The flexible plate 33 is arranged along the length of the shoulder strap sleeve 2. The flexible plate 33 can be built into the shoulder strap sleeve 2 or connected to the surface of the shoulder strap sleeve 2 to form an integral whole with the shoulder strap sleeve 2, thereby increasing the rigidity of the shoulder strap sleeve 2 and facilitating the transition of the safety restraint belt 14 and the shoulder strap sleeve 2 from a non-use position to a certain use position.

[0087] However, since the flexible plate 33 itself is flexible, the shoulder strap 2 can be kept in the non-use position by the magnetic attraction of the first magnet 31 and the second magnet 32.

[0088] The third structure of the spacer device 3 of the present invention is as follows: Figure 6 As shown.

[0089] The shoulder strap sleeve 2 is provided with a bistable plate 35, made of materials such as metal or rigid plastic. The bistable plate 35 is a rigid plate with rigidity. The bistable plate 35 is provided at least partially along the length of the shoulder strap sleeve 2, extending on the upper surface of the shoulder strap sleeve 2, and is allowed to be in an active position. When the bistable plate 35 is in a horizontally stretched state, the corresponding shoulder strap sleeve 2 is in a non-use position, at which time the shoulder strap sleeve 2 is pressed against the lower surface 134 of the side 132 of the headrest 13. When the bistable plate 35 is in a vertical / oblique relaxed state, the shoulder strap sleeve 2 changes from the non-use position to the use position.

[0090] The bistable effect of the bistable plate 35 allows the shoulder strap sleeve 2 to switch between a non-use position and a use position. The bistable plate 35 inside the shoulder strap sleeve 2 is simple and intuitive to use.

[0091] The fourth structure of the spacer device 3 of the present invention is as follows: Figure 7 As shown.

[0092] The shoulder strap cover 2 includes a molded plate 36, which is a sheet material with a certain degree of flexibility and rigidity. The molded plate 36 is preferably made of plastic. Compared to shoulder strap covers made of textile materials, the molded plate 36 has a certain degree of rigidity, but compared to metal materials, it has a certain degree of flexibility. The flexibility and rigidity of the molded plate 36 are between those of a flexible plate 33 and a bistable plate 35. Because the molded plate 36 still has sufficient deformation capacity, it can conform to the shoulders and torso of the seated person.

[0093] The molded plate 36 is at least partially arranged along the length of the shoulder strap sleeve 2 and extends on the upper surface of the shoulder strap sleeve 2. The shoulder strap sleeve 2 has a rotating hinge shaft at one end near the backrest 12. The rotating hinge shaft is a spring pin 37. The molded plate 36 is fitted onto the spring pin 37. The spring pin 37 applies a restoring force to the molded plate 36 to drive the shoulder strap sleeve 2 from a non-use position to a use position.

[0094] The spring pin 37 also includes a locking mechanism for locking the spring pin when the shoulder strap sleeve 2 is in a non-use position. The shoulder strap sleeve 2 automatically returns from the non-use position to a use position to facilitate the use of the safety restraint strap 14.

[0095] The structure of the spacers listed above is not intended to limit the invention. Other mechanisms may be used instead of the spacers without departing from the general principles of the invention, such as pressing the shoulder strap 2 of the safety restraint belt 14 to the exposed portion of the lower surface 134 of the side 132 of the headrest 13 by returning and / or pressing the shoulder strap 2.

[0096] The structure of the present invention is particularly suitable when the headrest 13 is height adjustable and the safety restraint strap 14 is adjusted via the retractor 15.

[0097] In fact, the technology proposed in this invention makes it possible to adjust the height of the headrest 13 without adjusting the spacer 3. The headrest 13 and the spacer 3 can be moved up and down synchronously to adjust to different heights.

[0098] Furthermore, when the shoulder strap cover 2 is moved to the non-use position, the displacement direction of the shoulder strap cover 2 toward the headrest 13 is consistent with the displacement direction of the retractor 15 retracting the safety restraint belt 14, thus enabling the automatic separation of the shoulder strap cover 2.

Claims

1. A seating position comprising a seat (11), a backrest (12), a headrest (13), and a safety restraint strap (14), said headrest (13) having a base (131) and two side portions (132) extending laterally from said base (131), at least a portion of the lower surface (134) of the two side portions (132) protruding relative to the front surface of the backrest (12) and being exposed; said safety restraint strap (14) having shoulder straps having two positions: - Usage position, in which the shoulder straps are vertical / diagonal and press against the shoulders / upper body of the seated person; - In a non-use position, the shoulder strap is removed from the seated person's shoulder so that the seated person can move out of or into the seat (1). Its features are: In the non-use position, at least a portion of each shoulder strap is attached to the exposed portion of the lower surface (134) of the side (132) of the headrest (13), thereby removing the shoulder straps of the safety restraint belt (14) from their vertical / diagonal position attached to the backrest (12). The state of the safety restraint belt (14) is adjusted and controlled to meet the user's needs.

2. The seating position according to claim 1, characterized in that: The shoulder strap is a solid flat strap, or a hollow shoulder strap sleeve (2), or the shoulder strap sleeve is fitted with a shoulder strap sleeve (2). In the non-use position, at least a portion of the shoulder strap and / or the shoulder strap sleeve (2) is connected to the exposed portion of the lower surface (134) of the side (132) of the headrest (13).

3. The seating position according to claim 2, characterized in that: The seat also includes a spacer (3) for holding the shoulder strap and / or the shoulder strap sleeve (2) in the non-use position.

4. The seating position according to claim 3, characterized in that: The spacer (3) includes compatible magnetic / hook / buttons that are connected to each other in the non-use position, with at least one magnetic / hook / button disposed on the shoulder strap and / or the shoulder strap sleeve (2) and engaging with at least one magnetic / hook / button on the exposed portion of the lower surface (134) of the side (132) of the headrest (13).

5. The seating position according to claim 4, characterized in that: The shoulder strap and / or the shoulder strap sleeve (2) are provided with a flexible plate (33) along the length direction.

6. The seating position according to claim 4, characterized in that: The spacer device (3) further includes a bistable plate (35) disposed at least partially along the length of the shoulder strap and / or the shoulder strap sleeve (2), the bistable plate (35) having two positions corresponding to the use position and non-use position of the shoulder strap and / or the shoulder strap sleeve (2), respectively.

7. The seating position according to claim 4, characterized in that: The spacer (3) further includes a molding plate (36) that extends at least partially along the length of the shoulder strap and / or the shoulder strap sleeve (2).

8. The seating position according to claim 7, characterized in that: The shoulder strap and / or the shoulder strap sleeve (2) has a rotating hinge shaft at one end near the backrest (12), which is a spring pin (37). The molded plate (36) is fitted onto the spring pin (37), and a restoring force is applied to the molded plate (36) through the spring pin (37) to drive the shoulder strap and / or the shoulder strap sleeve (2) from the non-use position to the use position.

9. The seating position according to any one of claims 1 to 8, characterized in that: The headrest (13) is height adjustable, and the shoulder strap moves synchronously with the headrest (13) in height when the headrest (13) is adjusted; the seat also includes a retractor (15) for retracting the safety restraint belt (14).

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