Vehicle seat

Abstract

This vehicle seat comprises: a rotating shaft that connects a second support member to a first support member so as to be capable of rotating relative to the first support member; a wire member (42) that is disposed inside the first support member and inside the second support member; and an interference suppression member. The interference suppression member has a holding part (102) that holds the wire member (42). The interference suppression member suppresses the wire member (42) from interfering with members other than the wire member (42) around the holding part (102). The holding part (102) holds the wire member (42).

Description

Vehicle seats

[0001] The present disclosure relates to a vehicle seat for a passenger.

[0002] The vehicle seat includes a seat back and a seat cushion. The seat back is rotatable relative to the seat cushion around a rotation shaft. As described in JP 2017-94873 A, a linear member such as an electric wiring or an operating cable is disposed inside the vehicle seat. The linear member extends from the seat back to the seat cushion.

[0003] When the seat back rotates, the wire member inside the seat cushion is pulled by the seat back. This pulling may expose excess wire member between the seat back and the seat cushion. In addition, the wire member may interfere with other members around the rotating shaft.

[0004] A vehicle seat includes a seat back, a seat cushion, a headrest, an armrest, an ottoman, etc. For example, the above-mentioned inconveniences can occur between the seat back and the headrest. Similar inconveniences can also occur between the seat cushion and the ottoman.

[0005] The present disclosure aims to solve the above-mentioned problems.

[0006] An aspect of the present disclosure is a vehicle seat to be mounted on a vehicle, comprising: a first support member and a second support member that support an occupant; a rotating shaft that connects the second support member to the first support member so that the second support member can rotate relative to the first support member; a linear member that is arranged inside the first support member and inside the second support member and extends from the first support member to the second support member; and an interference suppression member that has a holding portion that holds the linear member and that suppresses interference of the linear member with members other than the linear member around the holding portion.

[0007] According to the present disclosure, when the second support member rotates relative to the first support member, the amount of movement of the filamentary member is suppressed. This prevents the filamentary member from being pulled out from inside the first support member or the second support member. Furthermore, the interference suppression member prevents the filamentary member from interfering with other members near the pivot shaft.

[0008] FIG. 1 is a schematic perspective view of a vehicle seat according to an embodiment of the present disclosure. FIG. 2 is a partially exploded perspective view of the vehicle seat. FIG. 3 is a schematic front view of a seat back of the vehicle seat as viewed from the front. FIG. 4 is a perspective view of a main portion showing a connection portion between the seat back and a seat cushion. FIG. 5 is a front view of a main portion of the connection portion between the seat back and the seat cushion as viewed from the front. FIG. 6 is a plan sectional view of a main portion of the connection portion between the seat back and the seat cushion as viewed from above. FIG. 7 is a perspective view of a main portion of an interference suppression member assembled with a support frame. FIG. 8 is an exploded perspective view of the support frame and the interference suppression member before assembly. FIG. 9 is a schematic perspective view showing a state in which a linear member is passed through a through hole of an interference suppression member in an open state. FIG. 10 is a sectional view of a main portion of an interference suppression member in a closed state as viewed from the front-rear direction of the seat. FIG. 11 is a rear view of a main portion of the seat back as viewed from the rear. FIG. 12 is a perspective view of a main portion of an interference suppression member according to a modified example, showing a state in which a linear member is held via a holding portion. 13 is a plan cross-sectional view of the essential parts of the connection portion between the seat back and the seat cushion when the interference suppression member shown in FIG. 12 is used, as viewed from above.

[0009] In the following description, front and rear refer to relative positional relationships in the seat's fore-and-aft direction as shown in FIG. 1. Left and right refer to relative positional relationships in the seat's width direction. Note that the "seat's fore-and-aft direction" is the same direction as the fore-and-aft direction of a vehicle (e.g., a four-wheeled automobile), and the "seat's width direction" is the same direction as the vehicle's left-and-right direction. Up and down refer to relative positional relationships in the vertical direction. However, when referring to the "seat's up-and-down direction," the seat's up-and-down direction refers to the direction along the longitudinal direction of the seat back 20. The seat's up-and-down direction is not necessarily the vertical direction.

[0010] FIG. 1 is a schematic perspective view of a vehicle seat 10 according to this embodiment. FIG. 2 is a partially exploded perspective view of the vehicle seat 10. In the illustrated example, the vehicle seat 10 constitutes a passenger seat in a four-wheeled vehicle (right-hand drive vehicle) not shown. However, the vehicle seat 10 may be a seat other than a passenger seat. Furthermore, the vehicle seat 10 is not limited to an automobile seat installed in a four-wheeled vehicle. The vehicle seat 10 may also be an aircraft seat or a railway car seat.

[0011] In the following, a description will be given of an embodiment in which the first support member is the seat cushion 30 and the second support member is the seat back 20. However, the first support member may be the seat back 20 and the second support member may be the headrest 22. Alternatively, the first support member may be the seat cushion 30 and the second support member may be an ottoman (not shown).

[0012] The vehicle seat 10 includes a seat back 20 and a seat cushion 30. An armrest 24 is provided on the right side of the seat back 20, and an airbag storage compartment 26 (see FIG. 2) is provided on the left side of the seat back 20. An airbag 28 is stored in the airbag storage compartment 26. In the event of an unexpected accident, the airbag 28 deploys as shown by the phantom lines in FIG. 2. When the vehicle seat 10 is used as the right seat of a four-wheeled vehicle (a right-hand drive vehicle), the airbag storage compartment 26 is provided on the right side of the seat back 20, and the armrest 24 is provided on the left side of the seat back 20.

[0013] 1, the seat cushion 30 is movably supported on seat rails S1, S2 via cushion frames (not shown). The vehicle seat 10 moves in the front-to-rear direction along the two seat rails S1, S2 based on the operation of the occupant. The left rear portion of the seat cushion 30 and the left lower portion of the seat back 20 are covered by a left outer cover 34, and the right rear portion of the seat cushion 30 and the right lower portion of the seat back 20 are covered by a right cover 32R.

[0014] The seat cushion 30 has two storage compartments (not shown), an ISOFIX anchor (not shown) stored in each of the two storage compartments, and an anchor cover 33 provided for each of the two storage compartments. The ISOFIX anchor is a metal fitting connected to a fixing metal fitting at the rear of a child car seat. When the ISOFIX anchor is pulled out of the storage compartment, the anchor cover 33 is in an open state.

[0015] The seat back 20 has a back board 202 shown in Fig. 2, a back frame 204, a back panel 206, a pad 208, and the cover 230 shown in Fig. 1. As can be seen from Fig. 2, the back panel 206 is positioned and fixed to the front surface of the back board 202. The back frame 204 is a vertically long annular body whose length in the seat up-down direction is greater than its length in the seat width direction, and is supported by the front surface of the back panel 206.

[0016] A harness joint box 40 is positioned and fixed to the left side of the back frame 204, above the airbag storage portion 26. One end of a harness 41, which is an electrical wiring, is connected to the harness joint box 40. The harness 41 is a type of wire member 42. Note that the wire member 42 is not limited to the harness 41 and refers to any member that extends linearly. Other examples of the wire member 42 include an operating wire for operating a specific member. However, FIG. 2 does not show any wire members 42 other than the harness 41. The same applies to other drawings besides FIG. 2.

[0017] As can be seen from Fig. 2, the wire member 42 including the harness 41 is disposed between the back panel 206 and the pad 208, and is spanned across the seat cushion 30. In other words, the wire member 42 is disposed inside the seat back 20 and inside the seat cushion 30. Inside the seat back 20, the wire member 42 is fastened to the back frame 204 via a fastener 44 shown in Fig. 3.

[0018] As shown in FIGS. 2 and 3 , the pad 208 has a groove 210. The groove 210 is recessed from the front to the rear in the seat longitudinal direction. The inner surface of the groove 210, the deepest surface in the groove depth direction, is referred to as a bottom surface 212 (see FIG. 3 ). A plurality of exposure holes (not shown) are formed in the bottom surface 212 of the groove 210. The groove 210 has a left vertical groove 211a, a right vertical groove 211b, a lower horizontal groove 211c, and an upper horizontal groove 211d. The left vertical groove 211a extends in the seat vertical direction on the left side of the pad 208. The right vertical groove 211b extends in the seat vertical direction on the right side of the pad 208. The lower horizontal groove 211c and the upper horizontal groove 211d extend in the seat width direction and are connected to the left vertical groove 211a and the right vertical groove 211b.

[0019] As shown in FIG. 3 , a skin clip 220 is embedded inside the pad 208. The gripping claws 222 of the skin clip 220 are passed through the exposure holes and exposed inside the groove 210 from the bottom surface 212 of the groove 210. Note that FIG. 3 shows the left vertical groove 211 a, the lower horizontal groove 211 c, and the upper horizontal groove 211 d of the groove 210. The gripping claws 222 of the skin clip 220 grip a portion of the skin 230 (see FIG. 1 ). As shown in FIG. 1 , this gripping pulls a portion of the skin 230 into the groove 210. As a result, a groove pattern 232 is formed on the skin 230.

[0020] 2 and 3, the lowermost portion of the left vertical groove 211a in the seat vertical direction is substantially the same as the lowermost portion of the seat back 20 in the seat vertical direction. Of the multiple upholstery clips 220 arranged in the left vertical groove 211a, the clip located at the bottom is referred to as upholstery clip 220a.

[0021] As shown in FIG. 3 , a vibration device 50 is embedded inside the pad 208 above the left longitudinal groove 211 a. The vibration device 50 vibrates to warn the driver when a proximity sensor (not shown) and a determination unit (not shown) determine that the four-wheeled vehicle is about to come into contact with an object. By feeling this vibration, the driver can be aware of the possibility that the four-wheeled vehicle may come into contact with an object. As shown in FIG. 2 , the vibration device 50 is also embedded above the right longitudinal groove 211 b.

[0022] The left lower side of the back frame 204 is connected to the left inner cover 32L via a support frame 70 shown in FIG. 7 and a reclining mechanism 55 shown in FIG. 1. The reclining mechanism 55 allows the seat back 20 to rotate relative to the seat cushion 30. The configuration and operation of the reclining mechanism 55 are publicly known, as described in detail in, for example, Japanese Patent No. 6,504,720. Therefore, a description of the configuration and operation of the reclining mechanism 55 will be omitted in this specification.

[0023] The reclining mechanism 55 includes a rotating shaft 60 shown in FIGS. 5 and 6 . An axis L passing through the center of the rotating shaft 60 is the rotation center when the seat back 20 rotates relative to the seat cushion 30. The axis L is parallel to the seat width direction. The rotating shaft 60 has an inner end 62 (see FIG. 6 ) facing inward of the vehicle seat 10 and an outer end 64 (see FIG. 5 ) facing outward of the vehicle seat 10 in the seat width direction. As shown in FIGS. 4 and 5 , the left outer cover 34 is attached to the outer side (left side) of the left inner cover 32L. As shown in FIG. 5 , the outer end 64 of the rotating shaft 60 is housed in the internal space 36 formed by the left inner cover 32L and the left outer cover 34.

[0024] As shown in Figure 6, the support frame 70 has a cup portion 72 and an insertion hole 74 formed in the cup portion 72. The small-diameter inner end portion 62 of the rotating shaft 60 is inserted into the insertion hole 74 from the outside in the seat width direction. A threaded portion (not shown) is formed on the side peripheral surface of the inner end portion 62. Inside the cup portion 72, a nut 66 is screwed onto the threaded portion, thereby preventing the inner end portion 62 from slipping out of the insertion hole 74.

[0025] As shown in Figures 7 and 8, the support frame 70 has a frame main body 76. The frame main body 76 is bent in a generally V-shape starting from a bent portion 77. The frame main body 76 has a main wall portion 78 facing outward in the seat width direction, and a side wall portion 80 protruding inward in the seat width direction from the outer edge of the main wall portion 78. As can be seen from Figures 6 and 8, the cup portion 72 is a cylindrical portion that protrudes slightly outward in the seat width direction from the main wall portion 78 at the front end of the frame main body 76.

[0026] As shown in Figure 8, the support frame 70 has an engaging claw 82 and a tab portion 84. The engaging claw 82 protrudes slightly inward in the seat width direction and bends downward between the cup portion 72 and the bent portion 77. The tab portion 84 protrudes upward from the upper portion of the cup portion 72. A connection hole 86 is formed in the tab portion 84. An attachment member 90 (see Figure 10) that constitutes a part of the vehicle seat 10 is inserted into the connection hole 86.

[0027] As shown in Fig. 2, the vehicle seat 10 includes an interference suppression member 100. In the illustrated example, the interference suppression member 100 is located more inward in the seat width direction than the left inner cover 32L. As shown in Fig. 4, the interference suppression member 100 has a retaining portion 102. The retaining portion 102 is, for example, a C-clip 103. The retaining portion 102 holds the wire members 42, including the harness 41.

[0028] In the illustrated example, the interference suppression member 100 is a resin cover member 101. However, the interference suppression member 100 is not limited to a resin cover member 101. The interference suppression member 100 may be a metal frame. In this case, a predetermined portion of the frame can be used as the holding portion 102. Alternatively, the holding portion 102 can be formed by attaching a C-clip 103 or the like to the frame. The interference suppression member 100 may be a magnet that can hold the wire member 42 by magnetic force. If the interference suppression member 100 is a magnet, the holding portion 102 is a portion that holds the wire member 42 by magnetic force.

[0029] As can be seen from Fig. 2, when the vehicle seat 10 is viewed from above, the cover member 101 is located above the left anchor cover 33. That is, the cover member 101 overlaps the left anchor cover 33 in the up-down direction. In addition, the cover member 101 is located more inward than the airbag 28 before deployment and more inward than the airbag 28 after deployment in the seat width direction. Furthermore, as shown in Fig. 3, the cover member 101 is positioned so as not to overlap the vibration device 50 when the vehicle seat 10 is viewed from the seat width direction and when the vehicle seat 10 is viewed from the seat front-rear direction.

[0030] The configuration of the cover member 101 will be described. As shown in FIGS. 7 to 9 , the cover member 101 has a main body portion 110, a protective portion 112, and a through-hole 114 formed between the main body portion 110 and the protective portion 112. The main body portion 110 includes a covering portion 116 and an outer overlapping portion 118. The covering portion 116 has a cylindrical shape that bulges slightly inward in the seat width direction. The inner end portion 62 of the rotating shaft 60 (see FIG. 6 ) is disposed within the hollow interior of the covering portion 116. As a result, the covering portion 116 covers the inner end portion 62 of the rotating shaft 60.

[0031] As shown in FIG. 7 , the cover portion 116 has an attachment hole 120 for attaching the retaining portion 102 formed in a portion that overlaps the axis L of the rotating shaft 60 in the seat width direction. Therefore, the retaining portion 102 overlaps the axis L. As can be understood from this, in the vehicle seat 10 shown in FIG. 1 , the cover member 101 is disposed inward in the seat width direction from the left inner cover 32L and at a position that intersects with the axis L shown in FIGS. 3 to 7 . As shown in FIG. 8 , the cover portion 116 has a surface facing outward in the seat width direction (the inner surface of the cover portion 116) that has multiple claw portions 122 extending leftward along the seat width direction. The multiple claw portions 122 surround the attachment hole 120. An engagement opening 124 is formed in the lower portion of the cover portion 116.

[0032] As shown in Figure 9, the outer overlapping portion 118 has a first engagement portion 126 and a first connecting hole 128. The first engagement portion 126 is a cylindrical hollow protrusion that protrudes inward in the seat width direction. Therefore, the first engagement portion 126 has an accommodation space 127 therein. The first connecting hole 128 is formed near the first engagement portion 126 and passes through the outer overlapping portion 118 along the seat width direction. The mounting hole 120, the first connecting hole 128, and the first engagement portion 126 may be aligned on the same imaginary straight line.

[0033] The protective portion 112 has a wall portion 130 that extends in the seat width direction and is curved in an arc along the circumferential direction of the rotating shaft 60. The wall portion 130 is configured to partially cover the main body portion 110 along the circumferential direction of the rotating shaft 60. One end of the arc of the wall portion 130 is connected to the main body portion 110 via an intermediate portion 132. The intermediate portion 132 is thinner than other portions and can be easily deformed.

[0034] A flange portion 134 is continuous with the wall portion 130. The flange portion 134 is located in front of the wall portion 130 in the seat front-rear direction. Similar to the wall portion 130, the through-hole 114 and the flange portion 134 are curved in an arc along the circumferential direction of the rotating shaft 60. As shown in FIG. 6 , the flange portion 134 extends in the seat front-rear direction when attached to the support frame 70. Therefore, when the pad 208 is attached to the front of the back panel 206 shown in FIG. 2 , the left lower portion of the pad 208 is located in front of the cover member 101, as shown in FIG. 6 .

[0035] The rear surface of the lower left portion of the pad 208 comes into contact with the protective portion 112 and flange portion 134 of the cover member 101. This prevents the main body portion 110 and the holding portion 102 of the cover member 101 and the portion of the linear member 42 held by the holding portion 102 from coming into contact with the pad 208. In this way, the protective portion 112 protects the linear member 42 from the pad 208. Furthermore, the flange portion 134 presses the lower left side portion of the pad 208 from the outside in the seat width direction.

[0036] As shown in FIG. 9 , the protective portion 112 has an inner overlapping portion 136 that is continuous with the other end of the arc of the wall portion 130. The inner overlapping portion 136 has a second engagement portion 138 and a second connecting hole 140. The second engagement portion 138 is a cylindrical hollow convex portion that protrudes inward in the seat width direction. The second engagement portion 138 may be a hole. The second connecting hole 140 is formed near the second engagement portion 138 and passes through the inner overlapping portion 136 along the seat width direction.

[0037] As shown in Fig. 9 , a state in which the first engaging portion 126 and the second engaging portion 138 are not engaged is a disengaged state. In the disengaged state, when the connecting member 92 (see Figs. 7 and 8 ) is not inserted into the first connecting hole 128 or the second connecting hole 140, the intermediate portion 132 is deformed, allowing the protective portion 112 to move relative to the main body portion 110. As shown in Fig. 9 , when the inner overlapping portion 136 moves away from the outer overlapping portion 118 due to the relative movement, the through hole 114 is opened.

[0038] 7 and 10 , the first engagement portion 126 and the second engagement portion 138 engage with each other to form an engagement point 142, thereby establishing an engaged state. Specifically, as shown in FIG. 10 , the inner overlapping portion 136 overlaps the outer overlapping portion 118 inward in the seat width direction. During this overlapping, the first engagement portion 126 is detachably inserted into the second engagement portion 138. As a result of this insertion, the first engagement portion 126 and the second engagement portion 138 engage with each other. Additionally, the protection portion 112 is positioned relative to the main body portion 110, and the through-hole 114 is closed.

[0039] As the engaged state is formed, the second connecting hole 140 overlaps the first connecting hole 128 in the seat width direction. A connecting member 92 is inserted through the first connecting hole 128 and the second connecting hole 140. This insertion connects the main body portion 110 and the protective portion 112 via the connecting member 92. In other words, the connecting member 92 positions and fixes the protective portion 112 to the main body portion 110. The connecting member 92 may be connected to the support frame 70, but it is not necessary to connect the connecting member 92 to the support frame 70 as in the illustrated example.

[0040] As shown in Figure 7, the distance between the central axis of the connecting member 92 and the central axis of the engagement point 142 when the engaged state is formed is represented by distance D1. The shortest distance between the axis L passing through the center of the rotating shaft 60 and the central axis of the engagement point 142 is represented by distance D2. Distance D2 is equal to the distance from the center of the mounting hole 120 to the central axis of the engagement point 142. Distance D1 is shorter than distance D2. Note that the rotating shaft 60 is not shown in Figure 7.

[0041] The side wall portion 80 of the support frame 70 is inserted into the claw portion 122 shown in FIG. 7 . Furthermore, as shown in FIG. 7 , the engaging claw 82 of the support frame 70 is engaged with the engaging opening 124. Furthermore, as shown in FIG. 10 , the second engaging portion 138 is overlapped with the connecting hole 86 of the support frame 70. The shaft portion (threaded portion) of the mounting member 90 inserted through the connecting hole 86 is inserted into the accommodation space 127, which is the hollow interior of the first engaging portion 126. In this way, the cover member 101 is supported by the support frame 70. Note that the cover member 101 is not supported by the left inner cover 32L.

[0042] 8 , the through hole 114 and the engagement opening 124 do not overlap with each other in the radial direction of the rotating shaft 60. Specifically, an imaginary line R1 is drawn from the center of the mounting hole 120, through which the axis L passes, to one end of the arc of the through hole 114. Furthermore, an imaginary line R2 is drawn from the center of the mounting hole 120 to the other end of the arc of the through hole 114. When the region including the through hole 114 between the imaginary lines R1 and R2 is defined as an imaginary region, the engagement opening 124 is located outside this imaginary region in the circumferential direction centered on the axis L.

[0043] 4 to 6, 8 and 9, the wire member 42 can be passed through the through-hole 114. In the illustrated example, the harness 41a is passed through the through-hole 114.

[0044] Fig. 11 is a rear view of a main portion of the vehicle seat 10. As shown in Fig. 11, the lower portion of the cover member 101 may be exposed from the lower portion of the backboard 202. In this case, the backboard 202 overlaps most of the cover member 101 in the seat front-rear direction. Alternatively, the entire cover member 101 may overlap the backboard 202 in the seat front-rear direction. In this way, at least a portion of the backboard 202 overlaps the cover member 101 in the seat front-rear direction.

[0045] Next, the assembly process of the vehicle seat 10 will be briefly described.

[0046] When assembling the cover member 101 to the support frame 70, the worker disengages the first engaging portion 126 and the second engaging portion 138, as shown in FIG. 9 , and deforms the intermediate portion 132 to move the protective portion 112 relatively away from the main body portion 110. As a result, the through-hole 114 is opened. The worker can easily pass the harness 41a that constitutes the wire member 42 through the open through-hole 114.

[0047] Next, the worker deforms the intermediate portion 132 and moves the protective portion 112 relative to the main body portion 110 along the arrow X in FIG. 9 so that the inner overlapping portion 136 of the protective portion 112 approaches the outer overlapping portion 118 of the main body portion 110. As shown in FIGS. 7 and 10 , the worker overlaps the outer overlapping portion 118 with the inner overlapping portion 136 and inserts the first engaging portion 126 into the hollow interior of the second engaging portion 138 (see FIG. 10 ). This forms an engaging point 142 and establishes an engaged state. As a result, the through-hole 114 through which the linear member 42 is passed is closed (see FIG. 7 ). Next, the worker inserts the connecting member 92 through the overlapping first connecting hole 128 and second connecting hole 140 (see FIG. 10 ). The engaged state is maintained by the connecting member 92. In other words, the connecting member 92 prevents the through-hole 114 from opening.

[0048] The worker inserts the side wall portion 80 (see FIG. 8 ) of the support frame 70 into the claw portion 122 provided on the inner surface of the covering portion 116 of the cover member 101. Furthermore, the worker engages the engaging claw 82 of the support frame 70 with the engaging opening 124 of the cover member 101. Furthermore, as shown in FIG. 10 , the worker inserts the shaft portion (thread portion) of the mounting member 90 into the accommodation space 127 of the first engaging portion 126 through the connection hole 86 formed in the tab portion 84 of the support frame 70. In this manner, the cover member 101 is attached to the support frame 70.

[0049] Thereafter, the worker attaches the support frame 70 to the back frame 204 (see FIG. 2 ) and attaches the left outer cover 34 to the left inner cover 32L (see FIG. 5 ). As a result, the linear member 42 passed through the through hole 114 is housed in the internal space 36 formed by the left inner cover 32L and the left outer cover 34.

[0050] The worker attaches the pad 208 to the back panel 206 (see FIG. 2) and the front of the back frame 204. The worker then covers the pad 208 with the cover 230 (see FIG. 1). A portion of the cover 230 is gripped by the gripping claws 222 of the cover clips 220 shown in FIG. 3. As a result of the above, the vehicle seat 10 having the groove pattern 232 shown in FIG. 1 formed thereon is obtained.

[0051] Next, the operation of the vehicle seat 10 will be briefly described.

[0052] When an occupant sits in the vehicle seat 10, the seat back 20 supports the occupant's back, and the seat cushion 30 supports the occupant's buttocks. In this state, the occupant adjusts the inclination angle of the seat back 20 to a desired angle. This adjustment is performed via the reclining mechanism 55 shown in Figure 1. The seat back 20 rotates relative to the seat cushion 30 around a rotation shaft 60 (see Figures 5 and 6) as the rotation center.

[0053] As described above, the wire member 42 disposed inside the seat back 20 is pulled in the rotation direction of the seat back 20 as the seat back 20 rotates. However, the holding portion 102 of the cover member 101 holds the wire member 42 on the axis L of the rotation shaft 60. Therefore, the amount of movement of the wire member 42 is suppressed. This makes it possible to prevent the wire member 42 from being pulled out from inside the seat back 20 or the seat cushion 30.

[0054] 6 , the cover member 101, which is the interference suppression member 100, suppresses interference between the linear member 42 and members other than the linear member 42 (for example, the pad 208) around the rotating shaft 60 and the holding portion 102. The cover member 101 also has a covering portion 116 that covers the inner end portion 62 of the rotating shaft 60. The covering portion 116 shields the rotating shaft 60 from the linear member 42. This prevents the linear member 42 from interfering with the rotating shaft 60.

[0055] This embodiment has the following advantages.

[0056] 2 to 6 , the vehicle seat 10 includes an interference suppression member 100, which has a holding portion 102 that holds the linear member 42. The holding portion 102 holds the linear member 42 on the axis L of the rotation shaft 60 that connects the seat back 20 to the seat cushion 30 so that the seat back 20 can rotate relatively to the seat cushion 30.

[0057] The interference suppression member 100 suppresses interference of the wire member 42 with members other than the wire member 42 around the holding portion 102. Furthermore, by holding the wire member 42 in the above position, the amount of movement of the wire member 42 can be suppressed when the seat back 20 rotates relative to the seat cushion 30. This makes it possible to prevent the wire member 42 from being pulled out from inside the seat back 20 or the seat cushion 30.

[0058] As shown in Figures 4 and 6, the interference suppression member 100 is a cover member 101 having a main body portion 110 including a cover portion 116 that covers the inner end portion 62 of the rotating shaft 60, and a holding portion 102 located on the cover portion 116.

[0059] The cover portion 116 shields the inner end portion 62 of the rotating shaft 60 from the linear member 42. Therefore, it is possible to prevent the linear member 42 from interfering with the rotating shaft 60.

[0060] The cover member 101 has a protective portion 112. The protective portion 112 is located forward of the main body portion 110 in the seat front-rear direction and extends along the seat width direction. As a result, the protective portion 112 covers the front of the linear member 42.

[0061] By arranging the main body 110 and the protective portion 112 as described above, the protective portion 112 protects the linear member 42 from the pad 208, as shown in Fig. 5. This prevents the linear member 42 from being pressed by the pad 208, for example. Therefore, the linear member 42 can move within the allowable movement range in accordance with the rotation of the seat back 20 relative to the seat cushion 30.

[0062] As shown in FIG. 5 , the protection portion 112 is located forward of the holding portion 102 in the seat front-rear direction and overlaps with the holding portion 102 .

[0063] According to this configuration, when a load is input from the front to the protective portion 112 due to an unforeseen event, the protective portion 112 can protect the holding portion 102 and the linear member 42 .

[0064] 4 and 7 to 9, the cover member 101 has a through hole 114 located between the main body portion 110 and the protective portion 112. The through hole 114 extends in an arc shape along the circumferential direction of the rotating shaft 60. The harness 41a constituting the linear member 42 is inserted into the through hole 114.

[0065] Since the harness 41a (the wire member 42) can be passed through the through-hole 114, there are more options for the positioning of the wire member 42. In other words, the degree of freedom in arranging the wire member 42 is improved.

[0066] Furthermore, the through-holes 114 allow the linear members 42 to move relative to the cover member 101 when the seat back 20 rotates relative to the seat cushion 30. On the other hand, the through-holes 114, having an arc shape with closed ends, restrict the amount of relative movement of the linear members 42.

[0067] As can be seen from Figures 7 to 9, the through-hole 114 can be opened and closed. To open the through-hole 114, as shown in Figure 9, the first engaging portion 126 of the main body 110 and the second engaging portion 138 of the protective portion 112 are disengaged, and the protective portion 112 is rotated relative to the main body 110 about the intermediate portion 132. To close the through-hole 114, as shown in Figures 7 and 10, the protective portion 112 is rotated relative to the main body 110 about the intermediate portion 132 so that the outer overlapping portion 118 of the main body 110 overlaps the inner overlapping portion 136 of the protective portion 112. Thereafter, the first engaging portion 126 and the second engaging portion 138 are engaged with each other to form an engaged state.

[0068] Since the through-hole 114 can be opened and closed in this manner, it is easy to pass the harness 41 a (the linear member 42 ) through the through-hole 114 .

[0069] 10 , the vehicle seat 10 includes a support frame 70 that supports a cover member 101, and an attachment member 90 that attaches the cover member 101 to the support frame 70. The first engagement portion 126 is a hollow convex portion that has an accommodation space 127 that can accommodate the attachment member 90.

[0070] Since the mounting member 90 can be accommodated in the accommodation space 127 of the first engaging portion 126 with the first engaging portion 126 and the second engaging portion 138 engaged with each other, the cover member 101 can be made compact.

[0071] The cover member 101 has a connecting member 92. In the above-described engaged state, the connecting member 92 connects the main body portion 110 and the protection portion 112, thereby positioning and fixing the protection portion 112 to the main body portion 110.

[0072] 7 , the connecting member 92 prevents the through-hole 114 from being opened while the vehicle seat 10 is in use. Therefore, the harness 41 a (the linear member 42) is prevented from coming off the through-hole 114.

[0073] The distance D1 between the connecting member 92 and the engagement points 142 of the first engagement portion 126 and the second engagement portion 138 is shorter than the distance D2, which is the shortest distance between the center of the rotating shaft 60 and the engagement points 142.

[0074] Since the connecting member 92 and the engagement point 142 are in close proximity, the first engagement portion 126 and the second engagement portion 138 are securely engaged with each other.

[0075] 2, the vehicle seat 10 includes an airbag 28. The cover member 101 is located inward in the seat width direction from the airbag 28 before and after deployment.

[0076] Therefore, when the airbag 28 is deployed, the airbag 28 is prevented from interfering with the cover member 101. In other words, the deployment of the airbag 28 is prevented from being hindered by the cover member 101.

[0077] 6, the flange portion 134 of the cover member 101 abuts against the lower left side of the pad 208. This prevents the pad 208 from shifting in position along the seat width direction.

[0078] 8 , the through-hole 114 and the engagement opening 124 do not overlap with each other in the radial direction of the rotating shaft 60. This prevents the engagement claws 82 of the support frame 70 from interfering with the harness 41 a (wire member 42) passed through the through-hole 114 of the cover member 101.

[0079] 11 , at least a portion of the cover member 101 overlaps with the backboard 202 in the front-to-rear direction of the seat. Therefore, the cover member 101 can be protected by the backboard 202. Furthermore, the cover member 101 and the backboard 202 can be compactly arranged in a predetermined portion of the vehicle seat 10.

[0080] 3, the skin clip 220a is located between the bottom and top of the cover member 101 in the vertical direction. Therefore, the cover member 101 increases the attachment rigidity of the skin 230 by the skin clip 220a.

[0081] In the seat width direction and the seat front-rear direction, the cover member 101 is disposed at a position where it does not overlap with the vibration device 50. Therefore, even if the vibration device 50 vibrates, the cover member 101 is prevented from vibrating, and the generation of noise in the cover member 101 is prevented.

[0082] 2, the cover member 101 overlaps the left anchor cover 33 in the vertical direction. This allows the cover member 101 and the ISOFIX anchor to be compactly arranged in a predetermined portion of the vehicle seat 10.

[0083] Next, a cover member 150 shown in Figures 12 and 13 will be described. The cover member 150 is one of modified examples of the interference suppression member 100. In the following, to simplify the explanation and make it easier to understand, the same components as those shown in Figures 7 to 9 are given the same names.

[0084] The vehicle seat 10 shown in Fig. 1 includes a pivot shaft 67 in the embodiment shown in Fig. 12. The pivot shaft 67 spans from the left inner cover 32L to the right cover 32R shown in Fig. 1.

[0085] As shown in FIG. 12 , the cover member 150 has a main body portion 160, a protective portion 162, and a through-hole 164 formed between the main body portion 160 and the protective portion 162. The main body portion 160 includes a cup portion 166 and an outer overlapping portion 168. The cup portion 166 is cylindrical and bulges slightly inward in the seat width direction. The cup portion 166 has a shaft hole 169 at its approximate center. The pivot shaft 67 passes through the shaft hole 169. Therefore, the cup portion 166 intersects with the axis M that passes through the center of the pivot shaft 67. In this way, the cover member 150 is disposed inward in the seat width direction from the left inner cover 32L in the vehicle seat 10 shown in FIG. 1 , at a position that intersects with the axis M shown in FIG. 12 .

[0086] The cup portion 166 has an attachment hole 170 for attaching the holding portion 102 at a position separate from the shaft hole 169. The holding portion 102 is, for example, a C-clip 103. The C-clip 103 has a truncated cone-shaped insertion portion 104. An engagement opening 174 is formed in the upper portion of the cup portion 166.

[0087] The protective portion 162 has a wall portion 180 that extends in the seat width direction and is curved in an arc along the circumferential direction of the rotating shaft 67. The wall portion 180 is configured to partially cover the main body portion 160 along the circumferential direction of the rotating shaft 67. One end of the arc of the wall portion 180 is connected to the main body portion 160 via an intermediate portion 182. The intermediate portion 182 can be easily deformed, similar to the intermediate portion 132 shown in FIG. 9 .

[0088] 12 and 13 , a flange portion 184 is continuous with the wall portion 180. As shown in FIG. 13 , the flange portion 184 is located forward of the wall portion 180 in the seat front-rear direction. The flange portion 184 extends along the seat front-rear direction when attached to the support frame 70. Therefore, when the pad 208 is attached to the front of the back panel 206 shown in FIG. 2 , the left lower portion of the pad 208 is located in front of the cover member 150, as shown in FIG. 13 . The protective portion 162 protects the linear member 42 from the pad 208.

[0089] 12 , the protective portion 162 has an inner overlapping portion 186 that is continuous with the other end of the arc of the wall portion 180. The inner overlapping portion 186 has a connecting hole 190. The connecting hole 190 passes through the inner overlapping portion 186 along the seat width direction. When the inner overlapping portion 186 is overlapped on the outer overlapping portion 168, the connecting hole 190 overlaps the mounting hole 170.

[0090] The insertion portion 104 of the C-clip 103 is inserted into the mounting hole 170 and connecting hole 190, which are overlapping each other. This positions and fixes the inner overlapping portion 186 relative to the outer overlapping portion 168, maintaining the through-hole 164 in a closed state. On the other hand, when the insertion portion 104 is removed from the mounting hole 170 and connecting hole 190, the intermediate portion 182 is deformed, allowing the protective portion 162 to move relative to the main body portion 160. In other words, when the inner overlapping portion 186 moves away from the outer overlapping portion 168 due to this relative movement, the through-hole 164 is opened. As can be seen from the above, in this embodiment, the holding portion 102 also serves as the connecting member 92.

[0091] 13, the mounting hole 170 and the connecting hole 190 are located rearward of the pivot shaft 67 in a plan view of the seat cushion 30 seen from above. Also, as can be seen from FIG. 12, the mounting hole 170 and the connecting hole 190 are located below the pivot shaft 67.

[0092] 12, the wire member 42 can be passed through the through hole 164. In the illustrated example, the harness 41a is passed through the through hole 164.

[0093] In this embodiment, the same effects as those of the embodiment shown in FIGS. 1 to 11 can be obtained.

[0094] The following additional notes are further disclosed regarding the above embodiment.

[0095] (Appendix 1) The vehicle seat (10) of the present disclosure is a vehicle seat to be mounted on a vehicle, and comprises a first support member (30) and a second support member (20) that support an occupant, a pivot shaft (60, 67) that connects the second support member to the first support member so that the second support member can pivot relative to the first support member, a linear member (42) that is disposed inside the first support member and the second support member and extends from the first support member to the second support member, and an interference suppression member (100) that has a holding portion (102) that holds the linear member and that suppresses the linear member from interfering with members other than the linear member around the holding portion.

[0096] According to this configuration, when the second support member rotates relative to the first support member, the amount of movement of the filamentary member is suppressed. This prevents the filamentary member from being pulled out from inside the first support member or the second support member. In addition, the interference suppression member prevents the filamentary member from interfering with other members near the pivot shaft.

[0097] (Supplementary Note 2) In the vehicle seat described in Supplementary Note 1, the holding portion may hold the linear member on the axis of the rotating shaft.

[0098] By holding the filamentary member on the interference suppression member on the axis of the rotating shaft, the amount of movement of the filamentary member is further suppressed, thereby preventing the filamentary member from being pulled out from inside the first support member or the second support member.

[0099] (Appendix 3) In the vehicle seat described in Appendix 2, the rotating shaft may have an inner end (62) facing inward of the vehicle seat in the seat width direction, and the interference suppression member may be a cover member (101) having a main body portion (110) including a covering portion (116) covering the inner end of the rotating shaft, and the retaining portion located on the covering portion.

[0100] With this configuration, it is possible to prevent the linear member from interfering with the rotating shaft.

[0101] (Appendix 4) In the vehicle seat described in Appendix 3, the cover member may have a protective portion (112) that is located forward of the main body portion in the seat fore-and-aft direction and extends along the seat width direction, and the protective portion may cover the front of the linear member.

[0102] The protective portion can protect the line member from the pad, etc. Therefore, for example, the line member is prevented from being pressed by the pad, and the line member can move within the allowable movement range in accordance with the rotation of the second support member relative to the first support member.

[0103] (Supplementary Note 5) In the vehicle seat described in Supplementary Note 4, the protection portion may be located forward of the holding portion in the seat front-rear direction and overlap the holding portion.

[0104] According to this configuration, when a load is input from the front to the protective portion of the cover member due to an unexpected event, the protective portion can protect the holding portion.

[0105] (Appendix 6) In the vehicle seat described in Appendix 4 or 5, the cover member may be located between the main body portion and the protective portion, have a through hole (114) extending in an arc shape along the circumferential direction of the rotating shaft, and the linear member may be inserted into the through hole.

[0106] Since the linear member can be passed through the through-hole, the options for the placement position of the linear member are increased. In other words, the degree of freedom in placement of the linear member is improved. Furthermore, when the second support member rotates relative to the first support member, the through-hole allows the linear member to move relative to the cover member, but suppresses the amount of relative movement of the linear member due to its arc shape with both ends closed.

[0107] (Appendix 7) In the vehicle seat described in Appendix 6, the cover member may have a deformable intermediate portion (132) that connects the main body portion and the protective portion, and the through hole may be opened and closed by the protective portion rotating relative to the main body portion around the intermediate portion.

[0108] Since the through-hole can be opened and closed, it is easy to pass the linear member through the through-hole.

[0109] (Appendix 8) In the vehicle seat described in Appendix 7, the main body portion has a first engagement portion (126), the protective portion has a second engagement portion (138) that detachably engages with the first engagement portion, and when the first engagement portion and the second engagement portion are disengaged, the protective portion becomes rotatable relative to the main body portion around the intermediate portion and the through hole can be opened, and when the first engagement portion and the second engagement portion are engaged, the protective portion is positioned on the main body portion and the through hole is closed.

[0110] It is easy to maintain the through-hole in an open or closed state.

[0111] (Appendix 9) The vehicle seat described in Appendix 8 may include a support frame (70) that supports the cover member and an attachment member (90) that attaches the cover member to the support frame, and the first engagement portion may be a hollow convex portion having an accommodation space (127) that can accommodate the attachment member.

[0112] Since the mounting member can be housed in the second engaging portion with the first engaging portion and the second engaging portion engaged with each other, the cover member can be made compact.

[0113] (Appendix 10) In the vehicle seat described in Appendix 8 or 9, the cover member may have a connecting member (92) that connects the main body portion and the protective portion and positions and fixes the protective portion to the main body portion when the second engaging portion is engaged with the first engaging portion.

[0114] This prevents the through-hole from being opened while the vehicle seat is in use, thereby preventing the linear member from coming off the through-hole.

[0115] (Appendix 11) In the vehicle seat described in Appendix 10, the distance (D1) between the connecting member and the engagement points (142) of the first engagement portion and the second engagement portion may be shorter than the shortest distance (D2) between the center of the pivot shaft and the engagement points.

[0116] Since the connecting member and the engaging portion are close to each other, the first engaging portion and the second engaging portion are firmly engaged with each other.

[0117] (Supplementary Note 12) The vehicle seat according to any one of Supplementary Notes 1 to 11 may further include an airbag (28), and the interference suppression member may be positioned inward of the airbag in the seat width direction.

[0118] When the airbag is deployed, the airbag is prevented from interfering with the interference suppression member.

[0119] (Appendix 13) In the vehicle seat described in Appendix 7, the cover member (150) may have a connecting member (92) that connects the main body portion and the protective portion and positions and fixes the protective portion to the main body portion when the through hole is closed.

[0120] This prevents the through-hole from being opened while the vehicle seat is in use, thereby preventing the linear member from coming off the through-hole.

[0121] (Supplementary Note 14) In the vehicle seat described in Supplementary Note 13, the connecting member may also serve as the retaining portion.

[0122] This reduces the number of parts in the vehicle seat, and simplifies the shape of the cover member.

[0123] The present invention is not limited to the above disclosure, and various configurations can be adopted without departing from the gist of the present invention.

Claims

1. A vehicle seat (10) to be mounted on a vehicle, comprising: a first support member (30) and a second support member (20) that support an occupant; a rotating shaft (60, 67) that connects the second support member to the first support member so that the second support member can rotate relative to the first support member; linear members (42) that are disposed inside the first support member and the second support member and extend from the first support member to the second support member; and an interference suppression member (100) that has a holding portion (102) that holds the linear members and that suppresses interference of the linear members with members other than the linear members around the holding portion.

2. A vehicle seat according to claim 1, wherein the holding portion holds the linear member on the axis of the rotating shaft.

3. A vehicle seat as described in claim 2, wherein the rotating shaft has an inner end (62) facing inward of the vehicle seat in the seat width direction, and the interference suppression member is a cover member (101) having a main body (110) including a covering portion (116) that covers the inner end of the rotating shaft, and the retaining portion located on the covering portion.

4. A vehicle seat as described in claim 3, wherein the cover member has a protective portion (112) that is positioned forward of the main body portion in the seat longitudinal direction and extends along the seat width direction, and the protective portion covers the front of the linear member.

5. A vehicle seat according to claim 4, wherein the protection portion is positioned forward of the holding portion in the seat front-rear direction and overlaps with the holding portion.

6. A vehicle seat as described in claim 4, wherein the cover member is located between the main body portion and the protective portion and has a through hole (114) extending in an arc shape along the circumferential direction of the rotating shaft, and the linear member is inserted into the through hole.

7. A vehicle seat as described in claim 6, wherein the cover member has a deformable intermediate portion (132) that connects the main body portion and the protective portion, and the through-hole is opened and closed by the protective portion rotating relative to the main body portion around the intermediate portion.

8. A vehicle seat as described in claim 7, wherein the main body portion has a first engagement portion (126), the protective portion has a second engagement portion (138) that detachably engages with the first engagement portion, and when the first engagement portion and the second engagement portion are disengaged, the protective portion becomes rotatable relative to the main body portion around the intermediate portion and the through hole becomes open, and when the first engagement portion and the second engagement portion are engaged, the protective portion is positioned on the main body portion and the through hole is closed.

9. A vehicle seat as described in claim 8, comprising a support frame (70) that supports the cover member, and an attachment member (90) that attaches the cover member to the support frame, wherein the first engagement portion is a hollow convex portion having an accommodation space (127) that can accommodate the attachment member.

10. A vehicle seat as described in claim 8, wherein the cover member has a connecting member (92) that connects the main body portion and the protective portion and positions and fixes the protective portion to the main body portion when the second engaging portion is engaged with the first engaging portion.

11. A vehicle seat as described in claim 10, wherein the distance (D1) between the connecting member and the engagement points (142) of the first engagement portion and the second engagement portion is shorter than the shortest distance (D2) between the center of the pivot shaft and the engagement points.

12. A vehicle seat according to any one of claims 1 to 11, further comprising an airbag (28), wherein the interference suppression member is positioned inward of the airbag in the seat width direction.

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