Vehicle seat

Abstract

To obtain a vehicle seat which can inhibit malfunctions of a knob while inhibiting rattling of the knob and occurrence of abnormal noise.SOLUTION: A vehicle seat 10 includes: a seat main part 18 for supporting the body of a seated occupant; a knob 22 which is operated to displace a part of the seat main part 18; and a finisher 24 which covers a part of the seat main part 18. A contact part 44 which contacts with the finisher 24 in a state that the contact part 44 can be deflected to the side opposite to the finisher 24 is provided at the knob 22 side. The contact part 44 contacts with the finisher 24, in a state in which the contact part is biased to the finisher side.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a vehicle seat. [Background technology]

[0002] The following Patent Document 1 discloses a configuration in which a convex portion provided on the finisher side is brought into contact with a rib on the knob (operating lever) side, thereby suppressing rattle of the knob and generation of abnormal noise. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-30408 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the configuration described in Patent Document 1, if the frictional force generated on the contact surface between the convex portion on the finisher side and the rib on the knob side increases, it is possible that the knob will not return to its original position. In other words, the configuration described in Patent Document 1 has room for improvement in terms of suppressing knob rattles and abnormal noises while also suppressing malfunctions of the knob.

[0005] In consideration of the above, an object of the present invention is to provide a vehicle seat that can suppress the occurrence of knob rattle and abnormal noise while also suppressing malfunction of the knob. [Means for solving the problem]

[0006] The vehicle seat of the first embodiment comprises a seat body that supports the body of a seated occupant, a knob that displaces a part of the seat body when operated, and a finisher that covers a part of the seat body, and an abutment portion is provided on the knob side that abuts against the finisher in a state that is capable of being flexibly deformed toward the opposite side to the finisher, and the abutment portion abuts against the finisher in a state that is biased toward the finisher side.

[0007] In the vehicle seat of the first aspect, a portion of the seat body can be displaced by operating the knob. Here, a contact portion that contacts the finisher is provided on the knob side. This contact portion contacts the finisher while being biased toward the finisher. This makes it possible to suppress rattle of the knob and the generation of abnormal noise. Furthermore, the contact portion is flexibly deformable in the direction opposite the finisher. In this configuration, the contact portion flexes and deforms in the direction opposite the finisher, thereby preventing the contact portion from contacting the finisher excessively. This prevents excessive increase in frictional force generated on the contact surface between the contact portion and the finisher, thereby preventing malfunction of the knob.

[0008] The second aspect of the vehicle seat is the vehicle seat of the first aspect, in which the knob is attached to a lever, and when the knob is attached to the lever, the abutment portion is displaced toward the finisher compared to the state before the knob was attached to the lever.

[0009] In the vehicle seat of the second aspect, when the knob is attached to the lever, the abutment portion is displaced toward the finisher compared to the state before the knob is attached to the lever. This configuration makes it unnecessary to form the abutment portion so that it has the same shape as the abutment portion when the knob is attached to the lever. This makes it possible to prevent the configuration of the mold for forming the knob and the abutment portion from becoming complicated, for example. [Effects of the Invention]

[0010] The vehicle seat according to the present invention has the excellent effect of being able to suppress malfunction of the knob while suppressing rattle and abnormal noise of the knob. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a side view showing a vehicle seat according to an embodiment of the present invention; [Figure 2] FIG. 10 is a side view of the knob and the tip of the lever as viewed from the inside in the seat width direction. [Figure 3] 3 is a cross-sectional view showing a section of the knob and lever taken along line 3-3 shown in FIG. 2. [Figure 4] 4 is a cross-sectional view showing a section of the knob and lever taken along line 4-4 shown in FIG. 2. [Figure 5] FIG. 4 is an enlarged cross-sectional view showing the knob and the lever when the tip of the lever is inserted into the knob. [Figure 6] 10A and 10B are cross-sectional views showing knobs and the like in other forms. DETAILED DESCRIPTION OF THE INVENTION

[0012] 1 to 5, a vehicle seat 10 according to an embodiment of the present invention will be described. In the drawings, the arrow FR indicates the front side of the seat, the arrow UP indicates the upper side of the seat, the arrow OUT indicates the outer side in the width direction of the seat, and the arrow IN indicates the inner side in the width direction of the seat. Furthermore, in the following description, when the front-rear, up-down, and left-right directions are indicated unless otherwise specified, they refer to the front-rear in the front-rear direction of the seat, the up-down in the up-down direction of the seat, and the left-right in the width direction of the seat.

[0013] 1, a vehicle seat 10 of this embodiment includes a seat cushion 12 that supports the buttocks of a seated occupant from below, a seat back 14 that supports the back of the seated occupant from the rear, and a headrest 16 that supports the head of the seated occupant from the rear. The seat cushion 12, the seat back 14, and the headrest 16 form a seat main body 18 that supports the body of the seated occupant. The seat back 14 is supported on the rear end of the seat cushion 12 so that it can tilt (recline) in the front-rear direction.

[0014] The vehicle seat 10 also includes a lever 20 that can be tilted up and down to allow the seat back 14 to recline, and a knob 22 attached to the lever 20. The vehicle seat 10 also includes a finisher 24 that covers a portion of the seat cushion 12 and a portion of the seat back 14 from the outer sides in the seat width direction.

[0015] As shown in Figures 1 and 2, the lever 20 is formed, for example, by pressing a metal plate. The base end of the lever 20 is connected to the reclining mechanism. When the reclining mechanism is locked, the reclining of the seat back 14 is restricted. When the tip 26 of the lever 20 is tilted from the initial position toward the release position (for example, upward from the initial position), the reclining mechanism is released, allowing the seat back 14 to recline. The lever 20 is biased toward the initial position by a biasing member provided in the reclining mechanism.

[0016] As shown in FIG. 1 , the finisher 24 is formed using a resin material, for example. A rear portion of the finisher 24 forms a rear covering portion 28 that covers the reclining mechanism and other components from the outside in the seat width direction. A central portion of the finisher 24 in the front-rear direction forms a knob arrangement portion 30 that is recessed toward the inside in the seat width direction relative to the outer surface of the rear covering portion 28 in the seat width direction. A knob 22, described below, is arranged in this knob arrangement portion 30. A lever insertion hole through which a lever 20 is inserted is formed at the boundary between the rear covering portion 28 and the knob arrangement portion 30. By inserting the lever 20 into the lever insertion hole, a tip end 26 of the lever 20 is arranged along the outer surface of the knob arrangement portion 30 in the seat width direction. A contact bead 32 that protrudes toward the outside in the seat width direction is formed along the vertical direction in the central portion of the knob arrangement portion 30 in the front-rear direction.

[0017] As shown in Figures 2 to 4, the knob 22 is formed using a resin material, for example. The knob 22 is formed in a rectangular shape when viewed from the side of the seat, and is formed in a shape whose vertical dimension gradually decreases toward the front. In addition, a lever insertion hole 34 into which the tip end 26 of the lever 20 is inserted from the rear side is formed in the range from the rear end of the knob 22 to the middle part in the front-to-rear direction. As shown in Figures 3 and 4, the lever insertion hole 34 has a rectangular shape with the vertical direction as the longitudinal direction when viewed from the rear side. In detail, as shown in Figure 4, the lever insertion hole 34 is a space surrounded by an outer wall portion 36 extending along the outer surface of the tip portion 26 of the lever 20 in the seat width direction, an inner wall portion 38 extending along the inner surface of the tip portion 26 of the lever 20 in the seat width direction, an upper wall portion 40 extending along the upper surface of the tip portion 26 of the lever 20, and a lower wall portion 42 extending along the lower surface of the tip portion 26 of the lever 20.

[0018] As shown in FIGS. 2 to 4, a portion of the inner wall 38 in a region on the front side of the lever insertion hole 34 forms a contact portion 44. This contact portion 44 extends downward from the end of the upper wall 40 on the inner side in the seat width direction, and is formed in a rectangular (tongue-like) shape with its longitudinal direction extending up and down when viewed from the inner side in the seat width direction. The boundary portion of the contact portion 44 with the upper wall 40 forms an integral hinge portion 46 that is thinner in the seat width direction than the other portions of the contact portion 44. In addition, a protrusion 48 that protrudes toward the outer wall 36 is formed below the integral hinge portion 46 in a region above the contact portion 44. As shown in FIG. 5, the protrusion height of this protrusion 48 toward the outer wall 36 gradually increases from the rear side to the front side. Moreover, most of the surface of the protrusion 48 facing the outer wall 36 forms an inclined surface 50 that slopes toward the outer wall 36 as it extends forward. The angle θ of this inclined surface 50 with respect to the front-to-rear direction is set to approximately 10°, for example. As shown in FIG. 4, the outer wall 36 is formed with two protrusions 52 that protrude toward the inner wall 38 along the front-to-rear direction. The two protrusions 52 are spaced apart in the up-down direction.

[0019] As shown in FIGS. 2 to 4, the tip 26 of the lever 20 is inserted into the lever insertion hole 34, whereby the knob 22 is attached to the tip 26 of the lever 20. Here, as shown in FIGS. 4 and 5, when the tip 26 of the lever 20 is inserted into the lever insertion hole 34, the tip 26 of the lever 20 presses the protruding portion 48 of the abutting portion 44 toward the inside in the sheet width direction. As a result, as shown by the two-dot chain line in FIG. 4, the abutting portion 44 tilts toward the inside in the sheet width direction with the integral hinge portion 46 as the rotation center, and the lower end 54 of the abutting portion 44 protrudes toward the inside in the sheet width direction (toward the finisher 24) relative to the inner wall portion 38. In addition, the lower end 54 of the abutting portion 44 protruding toward the inside in the sheet width direction relative to the inner wall portion 38 abuts against the contact bead 32 formed on the knob placement portion 30 of the finisher 24.

[0020] (Actions and Effects of This Embodiment) Next, the operation and effects of this embodiment will be described.

[0021] 1 to 4, in the vehicle seat 10 of this embodiment, the tip 26 of the lever 20 can be tilted from the initial position toward the release position by operating the knob 22. This allows the seat back 14 to be reclined.

[0022] Here, the knob 22 is provided with an abutment portion 44 that abuts against the abutment bead 32 of the finisher 24. A lower end 54 of this abutment portion 44 is biased toward the finisher 24 and abuts against the abutment bead 32 of the finisher 24. This makes it possible to suppress rattles and abnormal noises of the knob 22.

[0023] Furthermore, the contact portion 44 is capable of flexibly deforming in the direction opposite to the finisher 24. In this configuration, the contact portion 44 flexibly deforms in the direction opposite to the finisher 24, thereby preventing the lower end portion 54 of the contact portion 44 from excessively contacting the contact bead 32 of the finisher 24. This prevents the frictional force generated at the contact surface between the lower end portion 54 of the contact portion 44 and the contact bead 32 of the finisher 24 from increasing excessively, and as a result, malfunction of the knob 22 can be prevented.

[0024] Furthermore, in this embodiment, when the knob 22 is attached to the tip end 26 of the lever 20, the lower end 54 of the abutment portion 44 is displaced so as to protrude toward the finisher 24 compared to the state before the knob 22 is attached to the tip end 26 of the lever 20. With this configuration, it is not necessary to form the abutment portion 44 so that it has the same shape as the abutment portion 44 when the knob 22 is attached to the tip end 26 of the lever 20. This makes it possible to prevent the configuration of the mold for forming the knob 22 and the abutment portion 44 from becoming complicated.

[0025] In the present embodiment, an example has been described in which, when the knob 22 is attached to the tip 26 of the lever 20, the lower end 54 of the abutment portion 44 protrudes toward the finisher 24 compared to the state before the knob 22 is attached to the tip 26 of the lever 20, but the present invention is not limited to this. For example, as with the knob 56 shown in Fig. 6, a configuration may be adopted in which the position of the abutment portion 44 does not change when the knob 56 is attached to the lever 20. In the knob shown in Fig. 6, parts corresponding to the knob 22 described above are denoted by the same reference numerals as the parts corresponding to the knob 22 described above.

[0026] Furthermore, the configuration of the knobs 22, 56 described above can be applied not only to knobs for reclining the seat back 14 but also to knobs for displacing other parts of the seat main body 18.

[0027] The above describes one embodiment of the present invention, but the present invention is not limited to the above, and it goes without saying that it can be implemented in various other modified forms within the scope of the gist of the present invention. [Explanation of symbols]

[0028] 10 Vehicle seats 18 Seat body 20 Lever 22 Knob 24 Finisher 44 Contact part 56 Knob

Claims

1. a seat body that supports the body of a seated occupant; a knob that displaces a part of the seat body when operated; a finisher that covers a part of the sheet body; Equipped with a contact portion that is provided on the knob side and that contacts the finisher in a state that the contact portion is capable of being flexibly deformed in a direction opposite to the finisher; The vehicle seat is in contact with the finisher with the contact portion being biased toward the finisher.

2. The knob is attached to a lever, 2. The vehicle seat according to claim 1, wherein, when the knob is attached to the lever, the contact portion is displaced toward the finisher side compared to a state before the knob is attached to the lever.

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