JP6643463B2 - Auxiliary equipment for seat belt - Google Patents

Description

  The present invention relates to a seatbelt assisting device for correcting a mounting position of a three-point seatbelt mounted on an automobile.

  Usually, a seat belt for a seat mounted on a car is adapted to the body shape of an adult. Therefore, when seating an infant with a low sitting height or a young child on the seat, the seat belt provided on the car alone is not enough to hold the body in a stable seat. There is a problem that the body of the infant or child may slip out of the seat belt when a centrifugal force is applied.

  As a measure against this, a child seat is currently used. The child seat is fixed to a vehicle seat using a seat belt, and is formed in a chair shape or a boat shape so that an infant or child can be seated or laid down.

  However, in this child seat, only the child seat itself is held by the seat belt, and the body of the infant or child is not directly held by the seat belt. In addition, due to the structure of the child seat, the portion held by the seat belt is biased toward the lower side (lower portion) of the child seat. For this reason, the inertia force when sudden braking is applied and the strong centrifugal force that acts during curve running are applied to the body of the infant or child, and the body is likely to sway back and forth, left and right, and become unstable.

  In some cases, a seat belt mounted on an automobile is provided with a motor-driven pretensioner mechanism (a mechanism for pulling the belt toward the vehicle body in conjunction with a braking operation of the automobile). However, when the child seat is attached as described above, the function of the pretensioner cannot be directly applied to the child, and in some cases, the child seat may be turned forward when sudden braking is applied. . Therefore, the child seat is not perfect in terms of safety.

  In addition to such a problem, while the child seat is being worn, the child seat occupies almost all of the seat for one person. Therefore, even when an infant or child does not get on, there is a problem that an adult cannot get on the vehicle as it is, thereby reducing the number of passengers in the car and impairing the livability in the car.

  The inventor of the present invention has invented a lightweight child seat, and has filed a patent application, focusing on the above-mentioned problems of the conventional child seat, particularly on the point of impairing the livability in the vehicle. ). In the child seat described in Patent Document 1, a board is mounted on a car seat, and a separate seat plate is bonded to a rail provided on the board. As a result, the exclusive portion of the child seat can be extremely reduced, so that a plurality of children can be seated on the rear seat.

  Furthermore, the inventor of the present invention has applied for a patent for another invention that focuses on safety rather than comfort (Patent Document 2). The auxiliary seatbelt described in Patent Literature 2 can be attached to a backrest portion of an automobile seat, and can be attached to the attachment portion to contact the right shoulder and the left shoulder of a wearer, respectively. And a connecting member to which tips of the two wearing belts are attached, the connecting member comprising: first connecting means connected to a belt portion of the seat belt; And a second connection means connected to the portion, wherein the belt portion and the receiving portion of the seat belt are connected via both of the connection means.

  In other words, a buckle for a child is interposed between the male buckle and the female buckle of the car seat belt, thereby indirectly utilizing the adjuster function provided in the car seat belt. Can be. Furthermore, by providing the buckle with a belt in the vertical direction, it became possible to make it a four-point belt-like.

  However, since the auxiliary seatbelt described in Patent Document 2 is interposed between the male buckle and the female buckle of the vehicle seatbelt, the number of parts is large and the structure is complicated. There was room for further improvement.

JP 2002-019502 A JP 2008-189220 A

  The present invention has been made in view of the above points, and has as its object a simple and inexpensive configuration in which the number of parts is reduced, and the same configuration can be mounted to various types of wearers. However, even if a large impact is applied in the event of an automobile accident, or if a strong inertial force or centrifugal force is applied, an assisting device for a seat belt that can securely hold the wearer's body in the vehicle seat The purpose is to provide.

  In order to solve the above-mentioned problem, a seatbelt assisting device according to the present invention is a seatbelt assisting device (1) for correcting a mounting position of a three-point seatbelt (120) mounted on an automobile, A vertical string portion (10) wound around a connector (103) formed by connecting a headrest (102) to an upper end of a backrest portion (101) of a seat (100) provided in an automobile; ), And a lower holder (20) that holds a lower belt portion (122) below the mounting bracket (121) of the three-point seat belt (120) and is in the middle of the vertical cord portion (10). And an upper holder (30) for holding an upper belt portion (123) above the mounting bracket (121) of the three-point seat belt (120). The direction is the longitudinal direction It is provided with an elongated tubular body (21) and a slit-shaped opening (22) formed along the longitudinal direction of the tubular body (21). The lower belt part (122) can be housed and held inside the tubular body (21), and the upper holder (30) is attached to the tubular body (31) and a part of the tubular body (31). A slit-shaped opening (32) formed, and the upper belt portion (123) of the seat belt (120) can be housed in the interior of the tubular body (31) through the opening (32), and held lower. The mounting position of the lower belt portion (122) is corrected by the tool (20), and the mounting position of the upper belt portion (123) is corrected by the upper holder (30).

According to the seatbelt assisting device of the present invention, the lower belt portion of the seatbelt held by the lower holding device presses the pelvis (lower abdomen) of the occupant in order to fix and protect the occupant's body to the seat. And the upper belt portion of the seat belt held by the upper holder is placed at a position where the upper belt portion does not cover the occupant's neck (the position of the chest below the neck).
Especially when the occupant is an infant or a young child, since the sitting height is lower than that of a normal adult, when the three-point seat belt is worn without using the seat belt assisting device of the present invention, the lower belt portion becomes a pelvis. Cannot be held properly, and the upper belt portion will bite into the neck. On the other hand, when the seat belt assisting device of the present invention is used, the mounting position of the lower belt portion and the upper belt portion is corrected to an appropriate position. Is corrected to a position that properly holds the pelvis, and the upper belt portion is arranged at a position where it does not bite into the neck. Therefore, even an occupant with a low sitting height, such as an infant, can use the three-point seat belt mounted on the vehicle.

  In addition, the vertical string suspended from the coupling for the headrest holds the body on both sides of the occupant, so that the three-point seat belt and the auxiliary device for the seat belt form a so-called four-point belt. Such an effect of four-point support is provided, and the occupant can be more reliably held on the seat. Therefore, the safety of the seat belt can be effectively improved.

  Further, according to the present invention, it is possible to provide a seatbelt assisting device capable of holding an occupant having a low sitting height, such as an infant, in a seat with a significantly simpler and less expensive configuration than a conventional child seat. Further, since the occupant is held by the seat belt mounted on the vehicle, higher safety can be ensured as compared with the child seat which holds the occupant indirectly.

  Further, in the above-mentioned seatbelt assisting device, both ends of the vertical cord portion (10) in the longitudinal direction are respectively connected to both ends of the lower holding device (20) or the vicinity thereof, and the upper holding device (30) is The left and right pair may be attached to the left and right vertical cord portions (10), respectively.

  According to this configuration, by providing a pair of left and right upper holders, the seatbelt assisting device can be attached to any of the three-point seatbelts of the left seat and the right seat. That is, for a three-point seat belt in which the upper belt extends from the upper left side of the occupant, the upper belt is passed through an upper holder on the left side, and the three-point seat belt in which the upper belt extends from the upper right side of the occupant. Allows the upper belt to pass through the upper holder on the right side.

  Further, the above-mentioned seatbelt assisting device includes an adjusting metal fitting (45) attached to a middle position of the vertical cord portion (10) and capable of adjusting the mounting position, and the upper holding tool (30) is provided with an adjusting metal fitting. It may be attached to the vertical cord part (10) via (45).

  According to this configuration, since the position of the upper holder can be adjusted in conjunction with the adjustment bracket, the position of the upper holder can be easily adjusted.

  Further, the above-mentioned seatbelt assisting device may include a cushion member attached to the surface of the lower holding device (20) on the side of the seat (100).

  According to this configuration, the lower abdomen of the occupant to which the lower holder abuts can be protected by the cushioning function of the cushion material.

  In addition, the code | symbol in a parenthesis mentioned above shows the code | symbol of the component in embodiment mentioned later as an example of this invention.

  ADVANTAGE OF THE INVENTION According to the auxiliary | assistant tool for seatbelts which concerns on this invention, while having the simple and inexpensive structure which suppressed the number of parts, and can be worn by various wearers with the same structure, the emergency Even if a large impact is applied in the event of an accident, or a strong inertial force or a centrifugal force is applied, the body of the wearer can be reliably held on the seat of the automobile.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the auxiliary | assistant tool for seat belts concerning 1st embodiment of this invention, (a) is a front view, (b) is AA sectional drawing of (a). It is a figure showing the state where the seat belt of the automobile was fastened using the seat belt assistant of the first embodiment. It is a figure showing the auxiliary equipment for seat belts concerning a second embodiment of the present invention, (a) is a front view and (b) is an AA sectional view of (a). It is a figure showing the state where the seat belt of the automobile was fastened using the seat belt assistant of the second embodiment. It is a figure showing the auxiliary equipment for seat belts concerning a third embodiment of the present invention, (a) is a front view and (b) is an AA sectional view of (a). It is a figure showing the state where the seat belt of the automobile was fastened using the seat belt assistant of the third embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1A and 1B are views showing a seatbelt assisting tool 1 according to a first embodiment of the present invention, wherein FIG. 1A is a front view, and FIG. 1B is a cross-sectional view taken along line AA of FIG. FIG. 2 is a diagram illustrating a state in which a seatbelt 120 mounted on an automobile is worn on a body using the seatbelt assisting tool 1 of the first embodiment. The seatbelt assisting tool 1 shown in these figures is an assisting tool for correcting a mounting position of a seatbelt (three-point seatbelt) 120 mounted on an automobile, and is an upper end of a backrest portion 101 of a seat 100. And a lower portion below a buckle (attachment bracket) 121 of a three-point seat belt 120 which is hung on a lower end of the vertical string portion 10 and is wound around a connecting pipe 103 formed by connecting a headrest 102 to the lower portion. A lower holding device 20 for holding the belt portion 122 and an upper holding device 30 attached at an intermediate position of the vertical cord portion 10 and holding the upper belt portion 123 above the mounting bracket 121 of the three-point seat belt 120 are provided. I have.

  Note that, in the following description, the expression of up, down, left, and right is based on the direction when the seat belt assisting device 1 is attached to the seat 100 as shown in FIG. .

  The vertical cord portion 10 of the seatbelt assisting device 1 is a member made of a flexible cloth material or the like, and is formed in a belt shape having a predetermined width. The intermediate portion is wound around the connecting pipe 103 of the headrest 102 and hung in an inverted U-shape, and one end is directly attached to the vicinity of one end of the lower holder 20 by sewing or the like. The end is attached to the vicinity of the other end of the lower holder 20 via a mounting bracket 41. The mounting bracket 41 has a frame portion 41a through which the vertical cord portion 10 can be inserted. The distal end of the vertical cord portion 10 is inserted into the frame portion 41a of the mounting bracket 41, is folded in a loop, and is locked by the adjusting bracket 43 mounted on the upper side thereof. The mounting bracket 41 can freely change the position of the vertical cord 10 inserted through the frame 41a, and the adjustment bracket 43 can adjust the fixing position of the tip 10a of the vertical cord 10. The position (height position) at which the lower holder 20 is suspended by the vertical cord portion 10 can be arbitrarily adjusted by the mounting bracket 41 and the adjustment bracket 43.

  The lower holder 20 includes an elongated tubular body 21 whose longitudinal direction is the lateral direction (left-right direction), and a slit (opening) 22 formed along the longitudinal direction of the tubular body 21. The lower belt portion 122 of the seat belt 120 can be accommodated and held in the tubular body 21 from the slit portion 22. The lower holding device 20 includes a rear plate portion 21b attached to the front end (lower end) of the vertical cord portion 10, a front plate portion 21a that is folded on the upper side of the rear plate portion 21b and depends on the front side, The lower plate 21c is integrally formed with a lower plate 21c that is folded below the plate 21b and extends upward along the front plate 21a.

  In addition, the lower holder 20 is made of a material having sufficient flexibility (flexibility) to open and close the slit portion 22 and a strength (toughness) capable of withstanding a certain tensile load. For example, it can be formed of a cloth material such as denim material or a synthetic resin material having flexibility. The slit portion 22 is provided with a hook-and-loop fastener (stopper) 23. By stopping the hook-and-loop fastener 23, the lower belt portion 122 held inside the tubular body 21 can be prevented from dropping. Although not shown, a fastener such as a snap or a button may be provided instead of the hook-and-loop fastener 23.

  The upper holder 30 includes a tubular body (annular body) 31 having substantially the same length as the width of the vertical cord 10 and a slit (opening) formed along the axial direction on the outer periphery of the tubular body 31. ) 32 so that the upper belt portion 123 of the seat belt 120 can be housed inside the tubular body 31 through the slit portion 32. The tubular body 31 of the upper holder 30 includes a rear plate portion 31b attached to the vertical cord portion 10 (adjustment bracket 45), and a front plate folded over the rear plate portion 31b and hanging down to the front side thereof. It is configured integrally with a portion 31a and a lower plate portion 31c that is folded below the rear plate portion 31b and extends upward along the front plate portion 31a.

  Similarly to the lower holder 20, the upper holder 30 is made of a material having such a degree of flexibility (flexibility) that the slit portion 32 can be opened and closed, and a strength capable of withstanding a certain tensile load. For example, it can be formed of a cloth material such as denim material or a synthetic resin material having flexibility. The slit portion 32 is provided with a hook-and-loop fastener (stopper) 33. By stopping the surface fastener 33, it is possible to prevent the upper belt portion 123 held inside the tubular body 31 from dropping. Although not shown, a fastener such as a snap or a button may be provided instead of the hook-and-loop fastener 33.

  Further, another adjustment fitting 45 is attached to a position above the adjustment fitting 43 in the vertical cord portion 10. Then, the upper holder 30 is attached to the vertical cord portion 10 via the adjustment fitting 45. That is, the adjustment fitting 45 has a frame portion 45a through which the vertical cord portion 10 is inserted, and can be locked at an arbitrary position with respect to the vertical cord portion 10 inserted through the frame portion 45a. . Then, in the upper holder 30, the plate portion 31b is attached to the front surface side of the adjusting bracket 45 thereafter.

  Next, a method of using the seat belt aid 1 having the above-described configuration will be described with reference to FIG. In order to use the seatbelt assisting tool 1, first, an intermediate portion of the vertical cord portion 10 is hung on the connecting pipe 103 of the headrest 102 to be suspended. When an infant sits on the seat 100, the lower holding tool comes in front of the infant's body, and the seat belt 120 is worn from above. Then, the upper belt portion 123 of the seat belt 120 is held by the upper holding device 30 of the seat belt auxiliary device 1, and the lower belt portion 122 of the seat belt 120 is held by the lower holding device 20 of the seat belt auxiliary device 1. The upper holding member 30 and the lower holding member 20 can easily and reliably close the upper belt portion 123 and the lower belt member 123 of the seat belt 120 by closing the slit portions 22 and 32 with the hook-and-loop fasteners 23 and 33 while the seat belt 120 is housed inside. The belt portion 122 can be held.

  According to the seatbelt assisting device 1 of the present embodiment, the lower belt portion 122 of the seatbelt 120 held by the lower holding device 20 is disposed at a position where the lower belt portion 122 of the occupant H presses the pelvis (lower abdomen). The upper belt portion 123 of the seat belt 120 held by the occupant H is placed at a position where the upper belt portion 123 does not cover the occupant H's neck (the position of the chest below the neck).

  In particular, when the occupant H is an infant or a young child, since the sitting height is lower than that of a normal adult, if the three-point seat belt 120 is worn as it is without using the seat belt aid 1 of the present embodiment, The lower belt 122 cannot properly hold the pelvis of the occupant H, and the upper belt 123 bites into the neck. On the other hand, if the seatbelt assisting device 1 of the present embodiment is used, the mounting position of the lower belt portion 122 and the upper belt portion 123 of the seatbelt 120 is corrected to an appropriate position, so that the occupant H is seated low. Even for an infant or the like having a low height, the mounting position of the lower belt portion 122 is corrected to a position that properly holds the pelvis, and the upper belt portion 123 is arranged at a position that does not bite into the neck. Therefore, the occupant H having a low sitting height, such as an infant, can use the three-point seat belt 120 mounted on the vehicle.

  In addition, the vertical cord portion 10 hung by the connecting member 103 for the headrest 102 holds the body on both sides of the occupant H, so that the three-point seat belt 120 and the seat belt assisting device 1 An effect of four-point support like a so-called four-point belt is provided, and the occupant H can be more reliably held on the seat 100. Therefore, the safety of the seat belt 120 can be effectively improved.

  Further, according to the seatbelt assisting device 1 of the present embodiment, it is possible to hold the occupant H having a low sitting height, such as an infant, on the seat 100 with a significantly simpler and cheaper configuration than the conventional child seat. An auxiliary device 1 for a seat belt can be provided. In addition, since the occupant H is held by the seat belt 120 mounted on the automobile, higher safety can be ensured as compared with a child seat that holds the occupant indirectly.

  Further, in the seat belt assisting tool 1, the longitudinal cord portion 10 has both ends in the longitudinal direction connected to both ends of the lower holder 20 or the vicinity thereof, respectively. The upper holder 30 has a pair of left and right sides attached to the left and right vertical cord portions 10 respectively. According to this configuration, by providing the pair of left and right upper holders 30, the seatbelt assisting tool 1 can be attached to any of the three-point seatbelts of the left seat and the right seat. That is, for a three-point seat belt in which the upper belt extends from the upper left side of the occupant, the upper belt is passed through the upper holder 30 on the left side, and the three-point seat belt in which the upper belt extends from the upper right side of the occupant. Then, the upper belt is passed through the upper holder 30 on the right side.

(Second embodiment)
Next, a seatbelt assisting device according to a second embodiment of the present invention will be described. In the description of the second embodiment and the corresponding drawings, the same or corresponding components as those of the first embodiment are denoted by the same reference numerals, and detailed description of those portions will be omitted below. Further, matters other than those described below and matters other than those illustrated are the same as those in the first embodiment.

  FIGS. 3A and 3B are views showing a seatbelt assisting tool 1-2 according to a second embodiment of the present invention, wherein FIG. 3A is a front view, and FIG. 3B is a sectional view taken along line AA of FIG. . FIG. 4 is a diagram showing a state in which a seatbelt 120 of an automobile is mounted using the seatbelt auxiliary tool 1-2 of the second embodiment. Although the basic structure of the seatbelt assisting tool 1-2 of the present embodiment is the same as that of the seatbelt assisting tool 1 of the first embodiment, the dimensions of each part are set to dimensions suitable for infants. ing.

  Specifically, the height position of the lower holder 20 is set to the waist position of the infant H2 by setting the length of the vertical cord portion 10. The upper holder 30 is set such that the upper belt portion 123 of the seat belt 120 does not reach the neck of the baby.

  Further, in the seatbelt assisting tool 1-2 of the present embodiment, a cushion member 50 having a buffering action is mounted on the rear surface of the vertical cord portion 10 and the lower holding portion 20. The cushion member 50 may be a material in which a cloth material is formed in a bag shape and a batting is filled therein. The cushion member 50 is dimensioned to cover substantially the entire torso of the baby.

  If the infant wears the seat belt 120 mounted on the vehicle as it is, the lower belt portion 122 does not lean on the waist and becomes unstable and dangerous because the body is extremely small. There is a problem that a person is put on the neck to be in a dangerous normal state, and the body cannot be held and there is a high possibility of slipping through. On the other hand, if the seat belt 120 is fastened using the seat belt assisting tool 1-2 of this embodiment, as shown in FIG. 4, the seat belt 120 is fastened to a proper and safe position for the infant H2. Can be corrected, and the body of the infant H2 can be reliably held by the interposition of the cushion member 50. Therefore, the wearability and safety of the seat belt 120 can be improved.

(Third embodiment)
Next, a seatbelt assisting device according to a third embodiment of the present invention will be described. 5A and 5B are views showing a seat belt assisting tool 1-3 according to the third embodiment of the present invention, wherein FIG. 5A is a front view, and FIG. 5B is a sectional view taken along line AA of FIG. . FIG. 6 is a view showing a state in which a seatbelt 120 of an automobile is mounted on a pregnant woman H3 using the seatbelt assisting tool 1-3 of the third embodiment. The seatbelt assisting device 1-3 of the present embodiment has the same basic structure as the seatbelt assisting device 1 of the first embodiment, but the dimensions of each part are set to dimensions suitable for pregnant women. It is.

  Specifically, the height position of the lower holding portion 20 is set to a position above the abdomen M of the pregnant woman H3 by setting the length of the vertical cord portion 10. The upper holder 30 is set so that the upper belt portion 123 of the seat belt 120 does not reach the neck of the pregnant woman H3. When the pregnant woman wears the seat belt 120 mounted on the car as it is, the lower belt portion 122 is stuck on the abdomen and becomes unstable and dangerous. If the seat belt 120 is worn, the wearing position of the seat belt 120 can be corrected to a position appropriate and safe for the pregnant woman H3, so that the wearing property and safety of the seat belt 120 can be improved.

  Further, in the seatbelt assisting tool 1-3 of the present embodiment, a cushion member 50 having a buffering action is mounted on the rear surface of the lower holding portion 20. The cushion member 50 is arranged at a position where it comes into contact with the upper part of the abdomen M of the pregnant woman H3, and functions to reduce the burden on the upper part of the abdomen M.

  The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications may be made within the scope of the claims and the technical idea described in the specification and the drawings. Is possible. For example, the specific shape and configuration of the material and details of the seatbelt assisting tool shown in the above embodiment are examples, and each part and component of the seatbelt assisting tool according to the present invention are made of a material other than the above. It may be a shape or the like.

Claims (3)

A seat belt assisting device for correcting a mounting position of a three-point seat belt mounted on an automobile,
A vertical string portion wound around a connecting member formed by connecting a headrest to an upper end of a backrest portion of the seat provided in the vehicle,
A lower holding device that is suspended from a lower end of the vertical cord portion and holds a lower belt portion below a mounting bracket of the three-point seat belt,
An upper holder that is attached at an intermediate position of the vertical cord portion and holds the upper belt portion above the mounting bracket of the three-point seat belt,
An adjusting bracket attached to a middle position of the vertical cord portion and capable of adjusting the attaching position,
The lower holding tool includes a long tubular body having a longitudinal direction in a lateral direction, and a slit-shaped opening formed along the longitudinal direction of the tubular body, and the sheet is formed from the opening. The lower belt portion of the belt can be housed and held inside the tubular body,
The upper holder includes a tubular body and a slit-shaped opening formed in a part of the tubular body, and the upper belt portion of the seat belt is inserted into the tubular body from the opening. It can be accommodated, and can be locked at any position in the longitudinal direction of the vertical string portion by being attached to the vertical string portion via the adjustment bracket,
An auxiliary tool for a seat belt, wherein a mounting position of the lower belt portion is corrected by the lower holding device, and a mounting position of the upper belt portion is corrected by the upper holding device. Both ends of the vertical cord portion in the longitudinal direction are connected to both ends of the lower holder or the vicinity thereof,
2. The seat belt assisting device according to claim 1, wherein a pair of left and right upper holders are attached to the left and right vertical cord portions, respectively. 3. The seat belt assisting device according to claim 1 or 2 , further comprising a cushion member attached to a surface of the lower holding device on the side of the seat.

Images