Driver seat of vehicle

Abstract

To provide a driver seat of a vehicle capable of reducing fatigue of a driver at the time of long-distance driving or the like.SOLUTION: A driver seat 10 includes a seat back 18 capable of supporting a back part DA of a seating driver D. A side part 18B of the seat back 18 is provided with an armrest projection part 18C including a support slope part 18C1 projecting to a seat front side, having a downward grade from a seat rear side to the seat front side, and capable of supporting an elbow part DC of the driver D.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a driver's seat for a vehicle. [Background technology]

[0002] Patent Document 1 below discloses an invention related to a vehicle seat. In this vehicle seat, armrest protrusions are provided on the sides of the seat back, and these armrest protrusions can support the elbows of an occupant. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-74896 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, when driving long distances, it is not desirable for the driver to keep his / her elbows off the ground all the time, from the viewpoint of reducing the driver's fatigue.

[0005] In this regard, it is conceivable to reduce the fatigue of the driver by providing armrest protrusions on the seat back, as in the prior art described above.

[0006] However, in the above-mentioned prior art, the upper surface of the armrest protrusion slopes downward from the front of the seat to the rear of the seat, and when the driver's forearm is supported on the upper surface of the armrest protrusion, the forearm may be forced to face the upper front of the seat. Therefore, depending on the relative position between the driver and the steering wheel, it may be difficult for the driver to place their forearm on the upper surface of the armrest protrusion while gripping the steering wheel. In other words, the above-mentioned prior art leaves room for improvement in terms of reducing driver fatigue during long-distance driving, etc.

[0007] SUMMARY OF THE INVENTION In consideration of the above, an object of the present invention is to provide a driver's seat for a vehicle that can reduce the fatigue of the driver during long-distance driving and the like. [Means for solving the problem]

[0008] The driver's seat of a vehicle according to the first aspect is provided with a seat back capable of supporting the back of a seated driver, and an armrest protrusion is provided on at least one side of the seat width direction of the seat back, which protrudes toward the front of the seat and has a support slope that slopes downward from the rear of the seat toward the front of the seat and is capable of supporting the driver's elbow.

[0009] The driver's seat for a vehicle according to the first aspect is provided with a seat back, and the seat back can support the back of the seated driver.

[0010] However, when driving long distances, it is not desirable for the driver to keep his / her elbows constantly raised from the seat in order to reduce the driver's fatigue.

[0011] In this embodiment, the seat back is provided with an armrest protrusion that protrudes toward the front of the seat on at least one side in the seat width direction. The armrest protrusion has a support slope that slopes downward from the rear of the seat to the front of the seat, and this support slope can support the driver's elbow.

[0012] Therefore, in this embodiment, the influence of the slope of the support slope on the posture of the driver's forearm can be reduced compared to a configuration in which the support slope slopes downward from the front of the seat to the rear of the seat, and as a result, for example, the driver can place his or her forearm on the support slope of the armrest protrusion while gripping the steering wheel.

[0013] In the driver's seat of the vehicle according to the second aspect, the midpoint of the support slope portion is set at a position that is 130 mm to 170 mm away from the driver's hip point in the direction along the torso line of the driver when viewed from the seat width direction in the driver's seat seat of the vehicle according to the first aspect.

[0014] In the driver's seat for a vehicle according to the second aspect, the midpoint of the support slope portion, as viewed in the seat width direction, is set at a position that is 130 mm to 170 mm away from the hip point of the driver in the direction along the torso line of the driver. Therefore, in this aspect, the position of the support slope portion in the seat height direction can be set at a position that easily supports the elbows of the seated driver.

[0015] The driver's seat of a vehicle according to the third aspect is the driver's seat of a vehicle according to the second aspect, in which the angle formed by the support slope portion and a straight line passing through the upper peripheral edge of the support slope portion and parallel to the torso line when viewed from the seat width direction is set in the range of 12 degrees to 40 degrees.

[0016] In the driver's seat for a vehicle according to the third aspect, the angle between the support slope and a line passing through the upper peripheral edge of the support slope and parallel to the torso line of the driver is set in the range of 12 to 40 degrees when viewed in the seat width direction. Therefore, in this aspect, the angle of the support slope with respect to the elbows of the seated driver can be set to an angle that makes it easy to support the elbows.

[0017] The driver's seat of a vehicle according to the fourth aspect is a driver's seat of a vehicle according to the second or third aspect, in which the midpoint, as viewed from the seat width direction, is located on the rear side of the torso line, and the distance between the torso line and the midpoint, as viewed from the seat width direction, is set in the range of 0 mm to 40 mm.

[0018] In the driver's seat for a vehicle according to the fourth aspect, the midpoint of the support slope is located on the rear side of the driver's torso line as viewed in the seat width direction. In this aspect, the distance between the driver's torso line and the midpoint of the support slope is set in the range of 0 mm to 40 mm as viewed in the seat width direction.

[0019] Therefore, in this aspect, the position of the support slope portion in the front-rear direction of the seat can be set to a position that easily supports the elbows of a seated driver.

[0020] The driver's seat of a vehicle according to the fifth aspect is a driver's seat of a vehicle according to any one of the first to fourth aspects, in which the support slope portion is located below the seat in the up-down direction of the seat than the steering wheel held by the driver.

[0021] According to the fifth aspect of the driver's seat for a vehicle, the support slope portion is located lower on the seat than the steering wheel held by the driver in the vertical direction of the seat, making it easy for the driver to place their forearms on the support slope portion while holding the steering wheel. [Effects of the Invention]

[0022] As described above, the driver's seat of a vehicle according to the present invention has the excellent effect of reducing the fatigue of the driver during long-distance driving and the like. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a side view schematically showing the configuration of a driver's seat of a vehicle according to an embodiment of the present invention. [Figure 2] 1 is a side view showing the configuration of an armrest protrusion provided on a seat back in a driver's seat for a vehicle according to this embodiment. FIG. [Figure 3] 3 is a side view (cross-sectional view taken along line 3-3 in FIG. 2) of the driver's seat of the vehicle according to this embodiment, showing the configuration of the armrest protrusion portion provided on the seat back as viewed from the underside of the seat. DETAILED DESCRIPTION OF THE INVENTION

[0024] An example of an embodiment of a driver's seat for a vehicle according to the present invention will be described below with reference to Figures 1 to 3. Note that arrows FR, UP, and LH shown as appropriate in each figure indicate the forward, upward, and leftward directions, respectively, of a "driver's seat 10 (hereinafter referred to as "seat 10") according to this embodiment. The forward direction of the seat 10 coincides with the forward direction of a "vehicle 12" in which the seat 10 is mounted, the upward direction of the seat 10 coincides with the upward direction of the vehicle 12, and the leftward direction of the seat 10 coincides with the leftward direction of the vehicle 12.

[0025] As shown in FIG. 1, the seat 10 is a driver's seat located in the passenger compartment 14 of the vehicle 12, and includes a seat cushion 16 that supports the buttocks and thighs of the driver D, a "seat back 18" that supports the back DA of the driver D, and a headrest 20 that is integral with the seat back 18 and supports the head DB of the driver D.

[0026] It should be noted that the driver D shown in FIG. 1 is depicted as an example of a Hybrid-3 AM50 (50th percentile of American adult males) dummy sitting in the seat 10 in a normal seating position.

[0027] The seat cushion 16 is configured to include a cushion pad (not shown) that forms the main part of the seat and is made of polyurethane foam, and a cushion cover 16A that covers the cushion pad, and is rectangular in shape with its longitudinal direction aligned with the seat width direction when viewed from the vertical direction of the seat. The seat cushion 16 is installed on the floor of the passenger compartment 14 via a seat base (not shown), and is slidable in the front-to-rear direction of the seat relative to the seat base.

[0028] The seat back 18 includes a seat back pad (not shown) that constitutes the main portion of the seat back and is made of urethane foam, and a seat back cover 18A that covers the seat back pad.

[0029] The seat back 18 is shaped like a rectangular parallelepiped with its longitudinal direction extending in the vertical direction of the seat when the driver D is seated in the seat 10. The seat back 18 is connected to the rear portion of the seat back 18 via a reclining mechanism (not shown), and is capable of tilting in the front-rear direction of the seat relative to the seat cushion 16.

[0030] Here, this embodiment is characterized in that an "armrest protrusion 18C" is provided on each of the "side portions 18B" on both sides of the seat back 18 in the seat width direction. The configuration of the armrest protrusion 18C will be described in detail below. Note that the armrest protrusion 18C may be provided only on the side portion 18B on one side in the seat width direction.

[0031] As shown in Figure 2, the armrest protrusion 18C protrudes from the side portion 18B toward the front of the seat in an approximately triangular shape when viewed in the seat width direction, and a "support slope portion 18C1" is provided in the upper portion of the seat, extending linearly with a downward slope from the rear of the seat toward the front of the seat.

[0032] In detail, when viewed from the seat width direction, the "midpoint CP" of the support slope portion 18C1 is set at a position where the "distance D1" from the "hip point HP" of the driver D in the direction along the "torso line TL" of the driver D is 130 mm to 170 mm.

[0033] In addition, when viewed from the seat width direction, the angle θ1 formed by the support slope portion 18C1 and the straight line L1 that passes through the peripheral edge portion 18C1A on the upper side of the seat of the support slope portion 18C1 and is parallel to the torso line TL is set in the range of 12 degrees to 40 degrees.

[0034] Furthermore, when viewed from the seat width direction, the support slope portion 18C1 is positioned on the seat rear side of the torso line TL, and is formed so that the "distance D2" between the torso line TL and the midpoint CP is set in the range of 0 mm to 40 mm.

[0035] In addition, as shown in FIG. 1, a "steering wheel 22" that is gripped by the driver D is located on the front side of the seat 10, and the support slope portion 18C1 is located below the steering wheel 22 in the up-down direction of the seat.

[0036] 3, an inner side surface portion 18C2 that constitutes the inner portion of the armrest protrusion 18C in the seat width direction extends from the inner peripheral edge of the support slope portion 18C1 in the seat width direction toward the rear and inside of the seat, as viewed in the direction of extension of the torso line TL. Also, as viewed in the direction of extension of the torso line TL, an angle θ2 formed between a support surface 18D that supports the driver D on the seat back 18 and an extension line L3 of the inner side surface portion 18C2 is set to approximately 55 degrees.

[0037] The armrest protrusion 18C configured as described above is capable of supporting the elbow DC of the driver D at the support slope 18C1 when the driver D is driving.

[0038] <Actions and Effects of This Embodiment> Next, the operation and effects of this embodiment will be described.

[0039] In this embodiment, as shown in FIG. 1, a seat back 18 is provided, and the seat back 18 can support the back DA of a seated driver D.

[0040] Incidentally, when driving long distances, it is not preferable for the driver D to always drive with his / her elbows DC lifted from the air in order to reduce fatigue of the driver D.

[0041] 2, in this embodiment, an armrest protrusion 18C protruding toward the front of the seat is provided on a side portion 18B of the seat back 18. The armrest protrusion 18C has a support slope 18C1 that slopes downward from the rear of the seat toward the front of the seat, and this support slope 18C1 can support the elbow DC of the driver D.

[0042] Therefore, in this embodiment, compared to a configuration in which the support slope 18C1 slopes downward from the front side of the seat to the rear side of the seat, it is possible to suppress the influence of the slope of the support slope 18C1 on the posture of the forearm DD of the driver D. As a result, for example, the driver D can place the forearm DD on the support slope 18C1 of the armrest protrusion 18C while gripping the steering wheel 22.

[0043] In addition, in this embodiment, when viewed from the seat width direction, the midpoint CP of the support slope portion 18C1 is set at a position where the distance D1 from the hip point HP of the driver D in the direction along the torso line TL of the driver D is 130 mm to 170 mm. Therefore, in this embodiment, the position of the support slope portion 18C1 in the seat height direction can be set to a position that easily supports the elbows DC of the seated driver D in accordance with the specifications of the vehicle 12, etc.

[0044] In addition, in this embodiment, when viewed from the seat width direction, the angle θ1 formed by the support slope 18C1 and a straight line L1 that passes through the seat upper peripheral edge 18C1A of the support slope 18C1 and is parallel to the torso line TL of the driver D is set in the range of 12 degrees to 40 degrees. Therefore, in this embodiment, the angle of the support slope 18C1 with respect to the elbow DC of the seated driver D can be set to an angle that makes it easy to support the elbow DC depending on the specifications of the vehicle 12, etc.

[0045] In this embodiment, the midpoint CP of the support slope portion 18C1 is located on the seat rear side of the torso line TL of the driver D when viewed in the seat width direction. In this embodiment, the distance D2 between the torso line TL of the driver D and the midpoint CP when viewed in the seat width direction is set in the range of 0 mm to 40 mm.

[0046] Therefore, in this embodiment, the position of the support slope portion 18C1 in the seat front-rear direction can be set to a position that easily supports the elbows DC of the seated driver D according to the specifications of the vehicle 12 and the like.

[0047] In addition, in this embodiment, the support slope portion 18C1 is located below the seat in the vertical direction of the seat relative to the steering wheel 22 held by the driver D, making it easy for the driver D to place his or her forearm DD on the support slope portion 18C1 while holding the steering wheel 22.

[0048] As described above, the seat 10 according to this embodiment can reduce fatigue of the driver D during long-distance driving and the like. [Explanation of symbols]

[0049] 10 Driver's seat 12 vehicles 18 Seatback 18B Side 18C Armrest protrusion 18C1 Support slope part 18C1A Periphery 22 Steering wheel CP midpoint D1 Distance D2 distance HP Hip Point L1 straight line TL Torso Line θ1 angle

Claims

1. A seat back is provided that can support the back of a seated driver, An armrest protrusion is provided on at least one side of the seat back in the seat width direction, protruding toward the front of the seat and having a support slope that is sloped downward from the rear of the seat to the front of the seat and can support the elbow of the driver. Driver's seat of a vehicle.

2. When viewed from the seat width direction, the midpoint of the support slope portion is set at a position where the distance from the hip point of the driver in a direction along the torso line of the driver is 130 mm to 170 mm. The driver's seat of a vehicle according to claim 1.

3. When viewed from the seat width direction, an angle formed by the support slope portion and a straight line passing through the seat upper peripheral edge portion of the support slope portion and parallel to the torso line is set in a range of 12 degrees to 40 degrees.

3. A driver's seat for a vehicle according to claim 2.

4. When viewed from the seat width direction, the midpoint is located on the seat rear side of the torso line, The distance between the torso line and the midpoint as viewed in the seat width direction is set in the range of 0 mm to 40 mm.

3. A driver's seat for a vehicle according to claim 2.

5. The support slope portion is located below the seat in the up-down direction of the seat relative to a steering wheel gripped by the driver. The driver's seat of a vehicle according to claim 1.

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