JP2020011576A - Vehicle sheet and string-shaped member - Google Patents

Abstract

To suppress twisting of right and left side parts of a backrest frame in vehicle collision while achieving reduction in weight and thickness of the backrest frame.SOLUTION: A vehicle sheet 1 includes: a resin backrest frame 40 of a backrest part 11; and a non-flexible string-shaped member 70 which connects right and left side parts 50 of the backrest frame 40 in a state where a tension is applied. In the string-shaped member 70, a central region 80 in a longitudinal direction of the string-shaped member 70 is arranged between right and left ends 50 of the backrest frame 40, and is wound around side parts 50 of the backrest frame 40 so as to pass through a back surface 50a and an outside surface 50b of the right and left side parts 50 of the backrest frame 40 in this order from the central region 80 toward both ends 100, and ends 100 of the string-shaped member 70 are fixed to each other in the center in the right and left direction of the backrest frame 40.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vehicle seat and a string-shaped member.

  Some vehicle seats use a resin frame for the purpose of reducing the weight and thickness. Some types of resin backrest frames are provided with side portions extending in the vertical direction on the left and right sides of the backrest portion (see Patent Document 1).

JP 2016-155400 A

  In the above-described vehicle seat, for example, when an external force in the front-rear direction is applied to the backrest portion at the time of a vehicle collision, the left and right sides of the backrest frame may be twisted inward. In this case, the strength of the backrest frame is reduced.

  Further, when a reinforcing plate is formed between the side portions of the backrest frame to increase the strength of the backrest frame, the weight of the backrest frame increases, and the thickness of the backrest frame in the front-rear direction also increases.

  The present application has been made in view of such a point, and aims to reduce the weight and thickness of a backrest frame of a vehicle seat and to suppress twisting of left and right sides of the backrest frame at the time of a vehicle collision. Is one of its purposes.

  A vehicle seat according to one aspect of the present invention includes a resin backrest frame of a backrest portion, and a non-stretchable cord that connects left and right sides of the backrest frame in a state where tension is applied. And a shaped member.

  According to this aspect, since the string-shaped member connects the left and right sides of the backrest frame in a state where tension is applied, the left and right sides of the backrest frame are subjected to an external force in the front-rear direction. Twisting can be suppressed. Further, the weight and thickness of the backrest frame can be reduced.

  The cord-like member has a central region in the longitudinal direction of the cord-like member disposed between the left and right side portions of the backrest frame, and extends from the central region toward both ends of the cord-like member. The backrest frame is wound around the side of the backrest frame so as to pass through the back and outer surfaces of the left and right sides in this order, and the ends of the cord-like members are fixed at the center in the left-right direction of the backrest frame. You may.

  The string-shaped member has a slit in its central region, passes through the outer surfaces of the left and right sides of the backrest frame, and then passes through the slit in the central region from the front side to the rear side, and The ends of the string-shaped members may be fixed to each other on the back side of the cord.

  The cord-like member has a slit in a central region in the longitudinal direction of the cord-like member, and the central region is disposed between left and right ends of the backrest frame, and both ends of the cord-like member from the central region. Toward the backrest frame, it is wound around the side of the backrest frame so as to pass through the back and outer sides of the left and right sides of the backrest frame in this order, and then the slit in the central region is moved from the front side to the back side. Each end of the string-shaped member may pass through and be fixed to the central region in the slit.

  The cord-like member has a central region in the longitudinal direction of the cord-like member disposed between the left and right side portions of the backrest frame, and extends from the central region toward both ends of the cord-like member. The backrest frame is wound around the side portion of the backrest frame so as to pass through the back surface and the outer surface of the left and right side portions in this order, and each end of the string-shaped member is positioned on the inner side surface of the left and right side portions of the backrest frame. It may be fixed.

  The cord-like member has a slit in a central region in the longitudinal direction of the cord-like member, and the central region is disposed between left and right side portions of the backrest frame, and both ends of the cord-like member from the central region. Toward the back of the backrest frame, the back, left and right sides of the backrest frame are wound around the side of the backrest frame so as to pass in this order, and then the slit in the central region is cut from the front side. Each end of the cord-like member may be fixed to the back of the left and right sides of the backrest frame, passing through the back.

  The vehicle seat may further include a fastening member for fastening the string-shaped member to left and right sides of the backrest frame.

  A string-shaped member according to one embodiment of the present invention is a string-shaped member attached to a resin backrest frame of a backrest portion of a vehicle seat, and a slit provided in a central region in a longitudinal direction of the string-shaped member. And a fixing portion provided at both ends of the string-shaped member, the ends of which can be fixed to each other, and the fixing portion is provided when the string-shaped member connects the left and right side portions of the backrest frame. Is configured to be adjustable.

  ADVANTAGE OF THE INVENTION According to this invention, the twist of the left and right side parts of a backrest frame at the time of a vehicle collision can be suppressed, reducing the weight and thickness of the backrest frame of a vehicle seat.

It is a perspective view showing an example of composition of a vehicular seat. It is a perspective view showing an example of a frame of a vehicle seat. It is AA sectional drawing of the side part of a backrest frame. It is a perspective view which shows the backrest frame to which the string-shaped member was attached. It is explanatory drawing which shows a string-shaped member. It is a rear view of the backrest frame to which the string-shaped member was attached. It is explanatory drawing of the BB cross section of the backrest frame to which the string-shaped member was attached. It is explanatory drawing of the BB cross section of the backrest frame to which the string-shaped member of another structure was attached. It is explanatory drawing of the BB cross section of the backrest frame to which the string-shaped member of another structure was attached. It is explanatory drawing of the BB cross section of the backrest frame to which the string-shaped member of another structure was attached.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Note that the same components are denoted by the same reference numerals, and redundant description will be omitted. Unless otherwise specified, the positional relationship such as up, down, left, and right is based on the positional relationship shown in the drawings. Furthermore, the dimensional ratios in the drawings are not limited to the illustrated ratios. The following embodiments are examples for describing the present invention, and the present invention is not limited to the embodiments.

  FIG. 1 is a perspective view showing an example of a configuration of a vehicle seat 1 according to the present embodiment. For example, the vehicle seat 1 includes a seat portion 10 on which a seated person sits, and a backrest portion 11 on which the seated person leans his back. The seat portion 10 and the backrest portion 11 have a trim cover 20 on the surface, and a cushioning pad 21 for defining the outer shape inside the trim cover 20.

  As shown in FIG. 2, the vehicle seat 1 has a resin skeleton inside. The seat 10 has a seat frame 30, and the backrest 11 has a backrest frame 40. The backrest frame 40 is formed in a frame shape, for example, along the outer shape of the backrest portion 11, and includes elongated side portions 50 extending vertically in the left and right directions of the seat. Therefore, there is an opening 60 inside the backrest frame 40.

  Left and right sides 50 of the backrest frame 40 are long in the front direction F of the seat. The side section 50 has, for example, a substantially triangular horizontal cross section as shown in FIG. 3, and has a gradually increasing thickness in the left-right direction from the front to the rear. The side portion 50 includes, for example, a back surface 50a, an outer surface 50b, and an inner surface 50c.

  A string member 70 is wound around the backrest frame 40 as shown in FIG. The string-shaped member 70 is wound around a plurality of upper and lower portions of the backrest frame 40, for example, two positions. As the material of the string-shaped member 70, a non-stretchable material, for example, a webbing is used. In addition, the material of the string-shaped member 70 is not limited to cloth such as power cloth, but may be nylon, polypropylene, or the like.

  As shown in FIG. 5, the string-shaped member 70 is formed in a band shape of, for example, about 1 m to 3 m. The string-shaped member 70 has, for example, a central region 80 including the center in the longitudinal direction of the string-shaped member 70 and an end region 81 including the end 100. The end region 81 is narrower than the central region 80. Has become. The central region 80 has a length substantially equal to the distance between the left and right sides 50 of the backrest frame 40.

  Two slits 90 through which the end region 81 is inserted are formed in the central region 80 of the string-shaped member 70. At both ends 100 of the string-shaped member 70, fixing portions 110 for fixing the both ends 100 are provided. The fixing portion 110 is configured to be capable of adjusting the tension when the cord-like member 70 is wound around the backrest frame 40, for example. The fixing part 110 is, for example, a two-piece type binding band in which a band part and a head part are separated, and a head part 110a is provided at one end 100 and a band part 110b is provided at the other end 100. . As shown in FIG. 6, the band portion 110b of one end portion 100 is attached to the head portion 110a of the other end portion 100, and the band portion 110b is slid with respect to the head portion 110b to adjust the tension of the string-shaped member 70. can do.

  As shown in FIGS. 4, 6 and 7, the central region 80 of the string-shaped member 70 is disposed between the left and right side portions 50 of the backrest frame 40. The string-like member 70 passes from the center in the left-right direction of the backrest frame 40 to the left and right sides 50 of the backrest frame 40 and the outer side surface 50b in this order from the center region 80 toward both ends 100. And then passes through the slit 90 in the central region 80 from the front side to the rear side, and the fixing portion 110 fixes the ends 100 of the cord-like members 70 to each other on the rear side of the central region 80. Have been. At this time, the string-shaped member 70 connects the left and right side portions 50 of the backrest frame 40 to each other in a state where tension is applied.

  On the outer side surface 50b of the side portion 50 of the backrest frame 40, the string-shaped member 70 is fastened to the side portion 50 by two fastening members 120 such as pins.

  According to the present embodiment, since the non-stretchable cord-like member 70 connects the left and right side portions 50 of the backrest frame 40 in a state where tension is applied, an external force is applied from the front. Sometimes, the side portion 50 of the backrest frame 40 can be prevented from being twisted. Further, since the string-shaped member 70 is used, the backrest frame 40 can be prevented from becoming heavy or thick in the front-rear direction. Therefore, the weight and thickness of the backrest frame 40 can be reduced.

  The string-shaped member 70 is attached to the side portion 50 of the backrest frame 40 so as to pass through the back surface 50a and the outer side surface 50b of the left and right side portions 50 of the backrest frame 40 in this order from the central region 80 toward both ends 100. The ends 100 of the cord-like members 70 are fixed at the center of the backrest frame 40 in the left-right direction. Thus, the strength of the side portion 50 against external force in the front-rear direction can be appropriately increased.

  The cord-shaped member 70 has a slit 90 in its central region 80, passes through the outer surfaces 50 b of the left and right sides 50 of the backrest frame 40, and then passes through the slit 90 in the central region 80 from the front side to the back side. The end portions 100 of the string-shaped members 70 are fixed on the back side of the central region 80. Thereby, since the fixing operation of the end portions 100 of the string-shaped members 70 can be performed on the back side of the central region 80, the attaching operation of the string-shaped members 70 can be easily performed.

  Since the vehicle seat 1 includes the fastening members 120 for fastening the string-shaped members 70 to the left and right side portions 50 of the backrest frame 40, the tension-applied string-shaped members 70 are appropriately attached to the side portions 50. Can be fixed.

  In the above embodiment, the string-shaped member 70 may have another configuration. For example, as shown in FIG. 8, the string-shaped member 70 may include a fixing portion 150 that fixes each end 100 of the string-shaped member 70 to the central region 80 at the slit 90. In this case, the fixing portion 150 is, for example, a two-piece type binding band in which a band portion and a head portion are separated. Even if the slit portion 90 is provided with the head portion 150a and each end portion 100 is provided with the band portion 150b. Good. The other configuration of the string-shaped member 70 of this embodiment is the same as that of the above-described embodiment, and the description thereof will be omitted using the same reference numerals.

  The cord-shaped member 70 has a central region 80 disposed between the left and right sides 50 of the backrest frame 40, and from the central region 80 toward both ends 100, the left and right sides 50 of the backrest frame 40. Is wound around the side portion 50 of the backrest frame 40 so as to pass through the back surface 50a and the outer side surface 50b in this order, and then passes through the slit 90 of the central region 80 from the front side to the back side, and the string-like member 70 at the slit 90 Are fixed to the central region 80. At this time, the band 150b of each end 100 of the string-shaped member 70 is passed through the head 150a of the slit 90, and each end 100 of the string-shaped member 70 is fixed to the central region 80.

  According to this example, the attaching work of the string-shaped member 70 can be easily performed. Moreover, the string-shaped member 70 can be shortened.

  As illustrated in FIG. 9, both ends 100 of the string-shaped member 70 may be fixed on the inner side surfaces 50 c of the left and right side portions 50 of the backrest frame 40. In such a case, the cord-shaped member 70 has a central region 80 disposed between the left and right ends 50 of the backrest frame 40, and from the central region 80 toward both ends 100, the left and right side portions 50 of the backrest frame 40. Is wound around the side portion 50 of the backrest frame 40 so as to pass through the back surface 50a and the outer side surface 50b in this order, and is fastened to the inner side surface 50c of the left and right side portions 50 of the backrest frame 40 by a fastening member 160 such as a pin. Each end 100 of the string-shaped member 70 is fixed.

  According to this example, since the string-shaped member 70 does not need to include the slit 90 and the fixing portions 110 and 150, the structure of the string-shaped member 70 can be simplified. Moreover, the string-shaped member 70 can be shortened.

  As shown in FIG. 10, in the cord-like member 70, the central region 80 is disposed between the left and right side portions 50 of the backrest frame 40, and from the central region 80 toward both ends 100, the left and right sides of the backrest frame 40. It is wound around the side portion 50 of the backrest frame 40 so as to pass through the back surface 50a, the outer surface 50b, and the inner surface 50c of the side portion 50 in this order, and then passes through the slit 90 of the central region 80 from the front side to the back side, Each end portion 100 of the string-shaped member 70 may be fixed to the back surface 50a of the left and right side portions 50 of the backrest frame 40 by a fastening member 170 such as a pin. In this case, the slit 90 in the central region 80 may be provided near the side portion 50 of the backrest frame 40.

  According to such an example, since the string-shaped member 70 does not need to include the fixing portions 110 and 150, the structure of the string-shaped member 70 can be simplified.

  As described above, the preferred embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes or modifications can be made within the scope of the concept described in the claims, and these naturally belong to the technical scope of the present invention. It is understood.

  For example, the string-shaped member 70 is not limited to the above-described embodiment, and may have another configuration. Although the string-like members 70 are provided at two places on the backrest frame 40, they may be provided at one place, or three or more places. The string-shaped member 70 may be attached to the backrest frame 40 in a tack-like manner. Other known fixing members may be used for the fixing portions 110 and 151. The present invention can also be applied to the side portion 50 of the backrest frame having other shapes.

  INDUSTRIAL APPLICABILITY The present invention is useful in reducing the weight and thickness of the backrest frame and suppressing torsion on the left and right sides of the backrest frame during a vehicle collision.

DESCRIPTION OF SYMBOLS 1 Vehicle seat 10 Seat part 11 Backrest part 40 Backrest frame 50 Side part 50a Back surface 50b Outer side surface 50c Inner side surface 70 String member 80 Central area 90 Slit 100 End part 110 Fixed part

Claims (8)

A resin backrest frame of the backrest part,
A non-stretchable string-shaped member that connects left and right sides of the backrest frame with tension applied thereto;   The cord-like member has a central region in the longitudinal direction of the cord-like member disposed between the left and right side portions of the backrest frame, and extends from the central region toward both ends of the cord-like member. Is wound around the side of the backrest frame so as to pass through the back and outer sides of the left and right sides in this order, and the ends of the cord-like members are fixed at the center in the left-right direction of the backrest frame. The vehicle seat according to claim 1, wherein   The string-shaped member has a slit in its central region, passes through the outer surfaces of the left and right sides of the backrest frame, and then passes through the slit in the central region from the front side to the rear side, and The vehicle seat according to claim 2, wherein ends of the string-shaped members are fixed to each other on a back side of the vehicle.   The cord-like member has a slit in a central region in the longitudinal direction of the cord-like member, and the central region is disposed between left and right ends of the backrest frame, and both ends of the cord-like member from the central region. Toward the backrest frame, it is wound around the side of the backrest frame so as to pass through the back and outer sides of the left and right sides of the backrest frame in this order, and then the slit in the central region is moved from the front side to the back side. The vehicle seat according to claim 1, wherein each end of the string-shaped member passes through and is fixed to the central region in the slit.   The cord-like member has a central region in the longitudinal direction of the cord-like member disposed between the left and right side portions of the backrest frame, and extends from the central region toward both ends of the cord-like member. The backrest frame is wound around the side portion of the backrest frame so as to pass through the back surface and the outer surface of the left and right side portions in this order, and each end of the string-shaped member is positioned on the inner side surface of the left and right side portions of the backrest frame. The vehicle seat according to claim 1, wherein the vehicle seat is fixed.   The cord-like member has a slit in a central region in the longitudinal direction of the cord-like member, and the central region is disposed between left and right side portions of the backrest frame, and both ends of the cord-like member from the central region. Toward the back of the backrest frame, the back, left and right sides of the backrest frame are wound around the side of the backrest frame so as to pass in this order, and then the slit in the central region is cut from the front side. 2. The vehicle seat according to claim 1, wherein each end of the cord-shaped member passes through a back side and is fixed to a back surface of left and right sides of the backrest frame. 3.   The vehicle seat according to any one of claims 1 to 6, further comprising a fastening member for fastening the string-shaped member to left and right sides of the backrest frame. A string member attached to a resin backrest frame of the backrest portion of the vehicle seat,
A slit provided in a central region in the longitudinal direction of the string-shaped member,
A fixing portion that is provided at both ends of the string-shaped member and that can fix the both ends to each other,
A string-shaped member, wherein the fixing portion is configured to be able to adjust a tension when the string-shaped member connects left and right side portions of the backrest frame.