JP2016132284A - Vehicular seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular seat in which rigidity of a wire member, which is suitable for positioning a coating position below a pad member to be fitted to a back frame and suspendedly extends downward from the back frame, is improved.SOLUTION: A vehicular seat comprises: a back frame 2f acting as a frame of a seat back 2; a wire member 30 which is suitable for positioning a coating position below a pad member to be fitted to the back frame 2f and suspendedly extends downward from the back frame 2f; and a first reinforcing member 40 which is hung across a lower end of the wire member 30 and a part of the back frame 2f to be connected integrally thereto.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle seat.

  Conventionally, the vehicle seat like patent document 1 is known. This Patent Document 1 discloses a wire member that is suitable for positioning a back frame as a skeleton of a seat back and a covering position below a pad member attached to the back frame, and extends downward from the back frame. Is provided.

JP 2013-208982 A

  However, since the wire of the vehicle seat in Patent Document 1 only needs to be suitable for positioning the covering position below the pad member to be mounted on the back frame, it only has rigidity to support the pad member. Here, it is assumed that the vehicle seat is lifted from the lower side of the wire member in order to move the vehicle seat. At this time, the wire member could not withstand the weight of the vehicle seat and could be deformed. If the wire member is deformed, the shape and positioning of the pad member may be impaired.

  The present invention was devised in view of such points, and the problem to be solved by the present invention is suitable for positioning a covering position below a pad member to be mounted on a back frame in a vehicle seat, and The purpose is to improve the rigidity of the wire member extending downward from the back frame.

  In order to solve the above problems, the vehicle seat of the present invention takes the following means. First, the first invention is a vehicle seat, which is suitable for positioning a back frame which is a skeleton of a seat back and a covering position below a pad member attached to the back frame, and is downward from the back frame. A wire member extending downwardly and a first reinforcing member that is integrally connected across a lower end of the wire member and a part of the back frame.

  According to the first aspect of the invention, the wire member and the first reinforcing member that is bridged and integrally connected between the lower end of the wire member and a part of the back frame serving as a skeleton of the seat back are provided. Accordingly, the first reinforcing member is a member that receives a load from below when the first reinforcing member is lifted from the lower side of the wire member in order to move the vehicle seat. Thereby, the rigidity improvement of a wire member can be aimed at. Therefore, the fear of deformation of the wire member can be suppressed. Moreover, the possibility of impairing the shape and positioning of the pad member accompanying the deformation of the wire member can be suppressed.

  Next, a vehicle seat according to a second aspect of the present invention is the first aspect, wherein the back frame includes a side frame that extends in the vertical direction on both sides, and a second reinforcing member that spans between the side frames. The second reinforcing member is integrally connected to at least one of the wire member and the first reinforcing member.

  According to the second aspect of the invention, the back frame includes the side frames that are continuous in the vertical direction on both sides, and the second reinforcing member that bridges the side frames. The second reinforcing member is integrally connected to at least one of the wire member and the first reinforcing member. Therefore, the rigidity of the wire member can be further improved by the second reinforcing member.

  Next, a vehicle seat according to a third aspect is the second aspect, wherein the wire member and the first reinforcing member are integrally connected to the second reinforcing member.

  According to the third aspect of the invention, the wire member and the first reinforcing member are integrally connected to the second reinforcing member. Thereby, since a wire member, a 1st reinforcement member, and a 2nd reinforcement member become an integral structure as a whole, the rigidity of a wire member can be improved further. Further, the rigidity of the wire member can be improved efficiently in a limited space inside the seat back.

  Next, a vehicle seat according to a fourth invention is any one of the first to third inventions, wherein a lower end of the wire member projects below a lower end surface of the first reinforcing member. And a bent portion that bends upward from a lower end surface of the first reinforcing member from the protruding portion, and the wire member includes a portion of the bent portion that is the first reinforcing member. It is integrally connected with the member.

  According to the fourth aspect of the invention, the lower end of the wire member has the projecting portion that projects downward from the lower end surface of the first reinforcing member. This overhanging portion functions to position the covering position below the pad member attached to the back frame. On the other hand, the wire member has a bent portion that bends upward from the projecting portion to the lower end surface of the first reinforcing member. The wire member is integrally connected to the first reinforcing member at the bent portion. Thereby, the wire member can achieve two functions of the positioning function of a pad member, and the function of integrally connecting with a 1st reinforcement member by one member.

  The present invention is a wire member that is suitable for positioning a covering position below a pad member to be mounted on a back frame in a vehicle seat and that extends downwardly from the back frame by taking the measures of the above inventions. It is possible to improve the rigidity.

1 is an overall perspective view of a vehicle seat according to an embodiment. It is the front view which expanded and showed the II section of FIG. It is the III-III sectional view taken on the line of FIG.

  Below, embodiment of this invention is described using FIGS. 1-3. In the embodiment, the second row of the vehicle seats in the vehicle seat will be described as an example. The directions indicated by appropriate arrows in the drawings are directions that coincide with the front, rear, upper, lower, right, and left sides of the vehicle to which the vehicle seat is applied. Each figure mainly shows the internal structure of the seat back 2 of the seat body 1 in order to easily understand the configuration of the embodiment. Therefore, the seat body 1 is illustrated mainly with a framework structure inside the back frame 2f that forms the skeleton of the seat back 2. Frames such as a seat cushion 3, a headrest 4 and an armrest 5 are omitted as a frame structure. Also, in the back frame of the seat back, equipment such as an outer skin and a seat pad attached to the outside may be omitted or simplified.

  As shown in FIG. 1, a seat body 1 in a vehicle seat (vehicle seat) includes a seat back 2 as a backrest portion, a seat cushion 3 as a seating portion, a headrest 4 as a headrest, and arms. It has the armrest 5 to mount. The seat back 2 has a back frame 2f that forms the skeleton thereof. The back frame 2f is formed in a substantially rectangular frame shape by appropriately bending and drawing pipe members and plate members made of steel.

  The back frame 2f includes side frames 20 that are continuous in the vertical direction on both sides. The side frame 20 has a cylindrical closed cross-sectional structure in which plate members are overlapped. Thereby, the rigidity which can support the equipment with which the seat back is installed is secured. A pipe-shaped rod member is spanned between the side frames 20 in the width direction. Specifically, an upper rod 22 is bridged over the upper end of the side frame 20. The upper rod 22 is a member that supports the headrest 4.

  An intermediate rod 24 is stretched over an intermediate position in the vertical direction of the side frame 20. The intermediate rod 24 is a member that supports the blower 10 mounted in the seat back. The blower 10 is a device that blows warm air or cold air toward the back of the seated person. The blower 10 includes a blower 11 and a duct 12. The duct 12 has a cylindrical shape, and one is configured as a suction port 14 and the other as a blowout port 13. A blower 11 is disposed at an intermediate position between the suction port 14 and the air outlet 13.

  A lower rod 26 (second reinforcing member) is bridged below the intermediate rod 24 of the side frame 20. The lower rod 26 is suitable for positioning a covering position below the pad member 50 (see FIG. 3) attached to the back frame 2f, and supports the wire member 30 extending downward from the back frame 2f. It is a member to do. The support structure for the wire member 30 will be described later.

  A pair of left and right plate-like lower arms 3a are disposed below the side frame 20 of the back frame 2f. The lower arm 3 a is connected to a cushion frame (not shown) that is a skeleton of the seat cushion 3. The seat back 2 and the seat cushion 3 of the seat body 1 are connected by a recliner 6 provided between the lower portion of the side frame 20 and the lower arm 3a. As a result, the seat back 2 is configured to be able to adjust the backrest angle with respect to the seat cushion 3 or to be moved forward above the seat cushion 3. Here, the recliner 6 can be selected from a manual type and an electric type. In the present embodiment, the recliner 6 is rotated by the driving force of the electric motor 7. A connecting rod 8 that connects the left and right recliners 6 is spanned between the recliners 6.

  The wire member 30 is a member that is suitable for positioning a covering position below the pad member 50 to be mounted on the back frame 2f as shown in FIGS. 2 and 3 and extends downward from the back frame 2f. . The wire member 30 is a linear member having a uniform cross section made of metal. The wire member 30 is formed in a substantially U shape by bending a linear member. Both ends of the wire member 30 have an upper end portion 31 that is wound from the rear side of the lower rod 26 and is fixed by welding. Further, the wire member 30 has side extending portions 32 that extend downward from both ends of the upper end portion 31 and extend in an inclined shape outward in the width direction. Moreover, it has a hanging part 33 that hangs downward from the laterally extending part 32. Further, between the left and right hanging parts 33, there is a lower horizontal part 34 (lower end of the wire member) that is horizontal (in other words, parallel to the lower rod 26). The lower horizontal portion 34 is located below the connecting rod 8. The lower horizontal portion 34 has an overhang portion 35 that projects downward from a lower end surface 47 of the first reinforcing member 40 described later. The overhang portion 35 functions to position the covering position below the pad member 50 to be attached to the back frame 2f. Further, the lower horizontal portion 34 has a bent portion 36 that bends upward from the overhang portion 35 to the lower end surface 47 of the first reinforcing member 40. The wire member 30 is integrally connected to the first reinforcing member 40 at a portion of the bent portion 36. Here, the integral connection of the bent portion 36 and the first reinforcing member 40 is desirably welding. This is because if the wire member 30 and the first reinforcing member 40 are not in an integrated state, when the load is applied from below, it is difficult for the first reinforcing member 40 to support the load and the wire member 40 may be bent. Because. Thus, the wire member 30 functions to position the covering position below the pad member 50 by the overhanging portion 35 of the lower horizontal portion 34 and is integrated with the first reinforcing member 40 by the bent portion 36 of the lower horizontal portion 34. A connected configuration can be taken.

  The first reinforcing member 40 is provided to improve the rigidity of the wire member 30 as shown in FIGS. The first reinforcing member 40 is disposed between the wire member 30 and the duct 12. The first reinforcing member 40 is formed in a substantially H shape by appropriately bending or drawing a plate member made of a steel material. The first reinforcing member 40 has an upper fixing portion 41 that is welded and fixed from the rear side of the lower rod 26. A connecting portion 43 is provided below the upper fixing portion 41. The connecting portion 43 is formed to be narrower than the upper fixing portion 41. Below the connecting portion 43, a lower fixing portion 46 that is welded (integratedly connected) to the lower horizontal portion 34 (the lower end of the wire member) of the wire member 30 is provided. The lower fixing portion 46 is formed wider than the connecting portion 43. The upper fixing portion 41 is provided with a clamp fixing hole 42 for fixing a cable or the like of equipment installed in the seat body 1. The connecting portion 43 is formed to be curved along the shape of the duct 12. The first reinforcing member 40 has a side cutout 45 in which the left and right sides of the connecting portion 43 are cut out. The side cut-out portions 45 can reduce the weight while taking into account the mounting workability of the left and right electric motors 7. On the other hand, a bead 44 is provided to improve the rigidity of the connecting portion 43.

  Thus, according to the vehicle seat of the embodiment, between the wire member 30, the lower horizontal portion 34 (the lower end of the wire member) of the wire member 30, and a part of the back frame 2 f that is the skeleton of the seat back 2. It has the 1st reinforcement member 40 spanned and connected integrally. Thereby, the 1st reinforcement member 40 becomes a member which receives the load from the lower part, when lifting from the downward side of the wire member 30 in order to move the vehicle seat. Thereby, the rigidity of the wire member 30 can be improved. Therefore, the possibility of deformation of the wire member 30 can be suppressed. Moreover, the possibility of impairing the shape and positioning of the pad member 50 accompanying the deformation of the wire member 30 can be suppressed.

  Further, the back frame 2 f includes a side frame 20 that is continuous in the vertical direction on both sides, and a lower rod 26 (second reinforcing member) that bridges between the side frames 20. The lower rod 26 is integrally connected to at least one of the wire member 30 and the first reinforcing member 40. Therefore, the rigidity of the wire member 30 can be further improved by the lower rod 26.

  Further, both the wire member 30 and the first reinforcing member 40 are integrally connected to the lower rod 26. Thereby, since the wire member 30, the 1st reinforcement member 40, and the lower rod 26 become an integral structure as a whole, the rigidity of the wire member 30 can be improved further. Further, the rigidity of the wire member 30 can be improved efficiently in a limited space inside the seat back 2.

  Further, the lower horizontal portion 34 (the lower end of the wire member) of the wire member 30 has an overhang portion 35 that projects downward from the lower end surface 47 of the first reinforcing member 40. The overhang portion 35 functions to position the covering position below the pad member 50 to be attached to the back frame 2f. On the other hand, the wire member 30 has a bent portion 36 that bends upward from the projecting portion 35 to the lower end surface 47 of the first reinforcing member 40. The wire member 30 is integrally connected to the first reinforcing member 40 at a portion of the bent portion 36. Thereby, the wire member 30 can achieve two functions of the positioning function of the pad member 50 and the function of integrally connecting with the first reinforcing member 40 with one member.

  The first reinforcing member 40 is disposed in a limited space between the connecting rod 8 and the duct 12. Therefore, the connecting portion 43 between the upper fixing portion 41 and the lower fixing portion 46 is formed to be curved along the shape of the duct 12. The first reinforcing member 40 has a side cutout 45 in which the left and right sides of the connecting portion 43 are cut out. The side cut-out portions 45 can reduce the weight while taking into account the mounting workability of the left and right electric motors 7. On the other hand, a bead 44 is provided to improve the rigidity of the connecting portion 43. The upper fixing portion 41 is provided with a clamp fixing hole 42. This is used for fixing cables and the like of equipment installed in the seat body 1 and can reduce the weight of the first reinforcing member 40.

  As mentioned above, although embodiment of this invention was described, the vehicle seat of this invention is not limited to embodiment, It can implement with other various forms. For example, the vehicle is not limited to a vehicle, and can be applied to various vehicles such as a ship and an aircraft. Moreover, although the wire member 30 and the 1st reinforcement member 40 were shown about the structure integrally connected with the lower rod 26 (2nd reinforcement member), it is not limited to this, A wire member or a 1st reinforcement member is shown. At least one should just be connected with the 2nd reinforcement member integrally. Moreover, although the 2nd reinforcement member showed the pipe-shaped lower rod 26, it is not limited to this, The board member made from steel plates may be sufficient.

DESCRIPTION OF SYMBOLS 1 Seat body 2 Seat back 2f Back frame 3 Seat cushion 3a Lower arm 4 Headrest 5 Armrest 6 Recliner 7 Electric motor 8 Connecting rod 10 Blower 11 Blower 12 Duct 13 Outlet 14 Suction port 20 Side frame 22 Upper rod 24 Intermediate rod 26 Below Rod (second reinforcing member)
30 Wire member 31 Upper end portion 32 Side extension portion 33 Hanging portion 34 Lower horizontal portion 35 Overhang portion 36 Bending portion 40 First reinforcing member 41 Upper fixing portion 42 Clamp fixing hole 43 Connecting portion 44 Bead 45 Side cutout portion 46 Lower fixing part 50 Pad member

Claims (4)

A vehicle seat,
A back frame as a skeleton of the seat back;
A wire member suitable for positioning a covering position below a pad member to be attached to the back frame and extending downwardly from the back frame;
A vehicle seat having a first reinforcing member that is integrally connected across a lower end of the wire member and a part of the back frame. The vehicle seat according to claim 1,
The back frame has side frames that are continuous in the vertical direction on both sides, and a second reinforcing member that bridges between the side frames,
The second reinforcing member is a vehicle seat that is integrally connected to at least one of the wire member or the first reinforcing member. The vehicle seat according to claim 2,
Both the wire member and the first reinforcing member are integrally connected to the second reinforcing member. The vehicle seat according to any one of claims 1 to 3,
The lower end of the wire member has a projecting portion that projects downward from the lower end surface of the first reinforcing member, and a bent portion that bends upward from the projecting portion to the lower end surface of the first reinforcing member. Have
The wire member is a vehicle seat in which a portion of the bent portion is integrally connected to the first reinforcing member.

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