Vehicle seats

Abstract

When the seat back rotates, the internal filament members of the seat cushion are prevented from interfering with other members. [Solution] The vehicle seat comprises a pivot shaft 60 that connects a second support member to a first support member so as to be rotatable relative to it, a linear member 42 disposed inside the first support member and inside the second support member, and an interference suppression member 100. The interference suppression member 100 has a holding portion 102 that holds the linear member 42. The interference suppression member 100 suppresses interference between the linear member 42 and members other than the linear member 42 around the holding portion 102. The holding portion 102 holds the linear member 42.

Description

Technical Field

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[0001] The present disclosure relates to a vehicle seat on which an occupant sits.

Background Art

[0002] A vehicle seat includes a seat back and a seat cushion. The seat back can rotate about a rotation shaft with respect to the seat cushion. As described in Japanese Patent Application Laid-Open No. 2017-94873, inside the vehicle seat, linear members such as electrical wiring or operation cables are arranged. The linear members extend from the seat back to the seat cushion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When the seat back rotates, the linear member inside the seat cushion is pulled by the seat back. Due to this pulling, there is a possibility that an excess linear member may be exposed between the seat back and the seat cushion. Also, around the rotation shaft, there is a possibility that the linear member may interfere with other members.

[0005] In addition to the seat back and the seat cushion, a vehicle seat includes a headrest, armrests, ottomans, and the like. For example, the above-mentioned inconveniences can also occur between the seat back and the headrest. Similar inconveniences may also occur between the seat cushion and the ottoman.

[0006] An object of the present disclosure is to solve the above-described problems.

Means for Solving the Problems

[0007] Aspects of the present disclosure are vehicle seats mounted on a vehicle, comprising: a first support member and a second support member for supporting an occupant; a pivot shaft connecting the second support member to the first support member so as to be rotatable relative to it; a linear member disposed inside the first support member and inside the second support member and extending from the first support member to the second support member; and an interference suppression member having a holding portion for holding the linear member, and around the holding portion for suppressing interference between the linear member and members other than the linear member. [Effects of the Invention]

[0008] According to this disclosure, when the second support member rotates relative to the first support member, the amount of movement of the filament member is suppressed. This prevents the filament member from being pulled out from inside the first support member or the second support member. In addition, the interference suppression member prevents the filament member from interfering with other members in the vicinity of the rotating shaft. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a schematic perspective view of a vehicle seat according to an embodiment of the present disclosure. [Figure 2] Figure 2 is an exploded perspective view of a vehicle seat. [Figure 3] Figure 3 is a schematic front view of the seatback of a vehicle seat, as seen from the front. [Figure 4] Figure 4 is a perspective view of the main parts showing the connection point between the seat back and the seat cushion. [Figure 5] Figure 5 is a front view of the main part of the connection point between the seat back and the seat cushion, as seen from the front. [Figure 6] Figure 6 is a cross-sectional view of the main part of the connection point between the seat back and the seat cushion, as seen from above. [Figure 7] Figure 7 is a perspective view of the main components, combining the support frame and the interference suppression member. [Figure 8] Figure 8 is an exploded perspective view of the support frame and interference suppression member before assembly. [Figure 9] Figure 9 is a schematic perspective view showing a linear member passed through a through-hole in an interference suppression member, where the through-hole is in an open state. [Figure 10] Figure 10 is a cross-sectional view of the main part of the interference suppression member when the through-hole is in a closed state and cut along the front-to-back direction of the sheet. [Figure 11] Figure 11 is a rear view of the main part of the seat back, as seen from the rear. [Figure 12] Figure 12 is a perspective view of the main part of the interference suppression member according to a modified example, showing the situation when the linear member is held via the holding part. [Figure 13] Figure 13 is a cross-sectional view of the main part of the connection between the seat back and the seat cushion, as seen from above, when using the interference suppression member shown in Figure 12. [Modes for carrying out the invention]

[0010] In the following explanation, "front" and "rear" refer to the relative positional relationship in the front-to-back direction of the seat, as shown in Figure 1. "Left" and "right" refer to the relative positional relationship in the seat width direction. Note that the "front-to-back direction of the seat" is the same direction as the front-to-back direction of the vehicle (e.g., a four-wheeled automobile), and the "seat width direction" is the same direction as the left-to-right direction of the vehicle. "Up" and "down" refer to the relative positional relationship in the vertical direction. However, when referring to the "up-down direction of the seat," the up-down direction of the seat refers to the direction along the longitudinal direction of the seat back 20. The up-down direction of the seat is not necessarily the vertical direction.

[0011] FIG. 1 is a schematic perspective view of the vehicle seat 10 according to the present embodiment. FIG. 2 is a partial exploded perspective view of the vehicle seat 10. In the illustrated example, the vehicle seat 10 constitutes a passenger seat of a four-wheel automobile (right-hand drive vehicle) not shown. However, the vehicle seat 10 may be a seat for a seat other than the passenger seat. Further, the vehicle seat 10 is not limited to an automobile seat mounted on a four-wheel automobile. The vehicle seat 10 may be an aircraft seat or a railway vehicle seat.

[0012] Further, hereinafter, an aspect in which the first support member is the seat cushion 30 and the second support member is the seat back twenty will be described. However, the first support member may be the seat back twenty 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).

[0013] The vehicle seat 10 includes a seat back twenty and a seat cushion 30. An armrest 24 is provided on the right side portion of the seat back twenty, and an airbag storage portion 26 (see FIG. 2) is provided on the left side portion of the seat back twenty. An airbag 28 is stored in the airbag storage portion 26. When an unexpected situation occurs, the airbag 28 is deployed as shown by the phantom line in FIG. 2. When the vehicle seat 10 is a right seat seat of a four-wheel automobile (right-hand drive vehicle), the airbag storage portion 26 is provided on the right side portion of the seat back twenty, and the armrest 24 is provided on the left side portion of the seat back twenty.

[0014] As shown in FIG. 2, the seat cushion 30 is movably supported on seat rails S1 and S2 via a cushion frame (not shown). The vehicle seat 10 moves in the seat front-rear direction along the two seat rails S1 and 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 twenty are covered with a left outer cover 34, and the right rear portion of the seat cushion 30 and the right lower portion of the seat back twenty are covered with a right cover 32R.

[0015] 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 in each of the two storage compartments. The ISOFIX anchor is a fitting that is connected to a fixing fitting at the rear of the child seat. When the ISOFIX anchor is pulled out from the storage compartment, the anchor cover 33 is opened.

[0016] The seat back 20 has a backboard 202 shown in FIG. 2, a back frame 204, a back panel 206, a pad 208, and a skin 230 shown in FIG. 1. As understood from FIG. 2, the back panel 206 is positioned and fixed on the front surface of the backboard 202. The back frame 204 is a vertically long annular body whose length in the seat up-and-down direction is larger than its length in the seat width direction, and is supported on the front surface of the back panel 206.

[0017] On the left side of the back frame 204, above the airbag storage portion 26, a harness joint box 40 is positioned and fixed. 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 �2 refers not only to the harness 41 but also to a member that extends linearly. Other examples of the wire member 42 include an operation wire for operating a predetermined member. However, in FIG. 2, wire members 42 other than the harness 41 are not shown. The same applies to drawings other than FIG. 2.

[0018] As understood from FIG. 2, the wire member 42 including the harness 41 is disposed between the back panel 206 and the pad 208 and is bridged over the seat cushion 30. In other words, the wire member 42 is disposed inside the seat back 20 and inside the seat cushion ۳0. Inside the seat back 20, the wire member 42 is fastened to the back frame 204 via a fastener 44 shown in FIG. 3.

[0019] As shown in Figures 2 and 3, the pad 208 has a groove 210. The groove 210 is recessed from front to rear in the front-rear direction of the sheet. The innermost surface of the groove 210 in the groove depth direction is called the bottom surface 212 (see Figure 3). Multiple exposed 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 along the vertical direction of the sheet on the left side of the pad 208. The right vertical groove 211b extends along the vertical direction of the sheet on the right side of the pad 208. The lower horizontal groove 211c and the upper horizontal groove 211d are grooves that extend along the width direction of the sheet and connect to the left vertical groove 211a and the right vertical groove 211b.

[0020] As shown in Figure 3, a skin clip 220 is embedded inside the pad 208. The gripping claws 222 of the skin clip 220 are passed through each exposed hole and are exposed to the inside of the groove 210 from the bottom surface 212 of the groove 210. Figure 3 shows the left vertical groove 211a, the lower horizontal groove 211c, and the upper horizontal groove 211d of the groove 210. The gripping claws 222 of the skin clip 220 grip a portion of the skin 230 (see Figure 1). As shown in Figure 1, this gripping pulls a portion of the skin 230 into the inside of the groove 210. As a result, a groove pattern 232 is formed on the skin 230.

[0021] As shown in Figures 2 and 3, the lowest point of the left vertical groove 211a in the vertical direction of the seat is approximately the same as the lowest point of the seat back 20 in the vertical direction of the seat. Among the multiple upholstery clips 220 arranged in the left vertical groove 211a, the clip located at the bottom is referred to as the upholstery clip 220a.

[0022] As shown in Figure 3, a vibration device 50 is embedded inside the pad 208, at the top of the left longitudinal groove 211a. The vibration device 50 vibrates as a warning when a proximity sensor (not shown) and a determination unit (not shown) determine that the four-wheeled vehicle is in contact with an object. By feeling this vibration, the occupants can understand the possibility that the four-wheeled vehicle is in contact with an object. As shown in Figure 2, a vibration device 50 is also embedded at the top of the right longitudinal groove 211b.

[0023] The lower left side of the back frame 204 is connected to the left inner cover 32L via the support frame 70 shown in Figure 7 and the reclining mechanism 55 shown in Figure 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 detailed in, for example, Japanese Patent No. 6504720. Therefore, this specification omits a description of the configuration and operation of the reclining mechanism 55.

[0024] The reclining mechanism 55 includes a pivot shaft 60 as shown in Figures 5 and 6. The axis L passing through the center of the pivot shaft 60 is the pivot center when the seat back 20 rotates relative to the seat cushion 30. The axis L is parallel to the seat width direction. In the seat width direction, the pivot shaft 60 has an inner end 62 (see Figure 6) facing inward from the vehicle seat 10 and an outer end 64 (see Figure 5) facing outward from the vehicle seat 10. As shown in Figures 4 and 5, a left outer cover 34 is attached to the outside (left side) of the left inner cover 32L. As shown in Figure 5, the outer end 64 of the pivot shaft 60 is housed in the internal space 36 formed by the left inner cover 32L and the left outer cover 34.

[0025] 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 62 of the rotating shaft 60 is inserted into the insertion hole 74 from the outside in the sheet width direction. A threaded portion (not shown) is formed on the side circumferential surface of the inner end 62. Inside the cup portion 72, a nut 66 is screwed onto the threaded portion to prevent the inner end 62 from coming out of the insertion hole 74.

[0026] As shown in Figures 7 and 8, the support frame 70 has a frame body 76. The frame body 76 is bent in a roughly V-shape starting from the bent portion 77. The frame body 76 has a main wall portion 78 facing outward in the sheet width direction, and a side wall portion 80 projecting inward in the sheet 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 tube portion at the front end of the frame body 76 that slightly projects outward from the main wall portion 78 in the sheet width direction.

[0027] 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 top of the cup portion 72. A connecting hole 86 is formed in the tab portion 84. A mounting member 90 (see Figure 10), which constitutes part of the vehicle seat 10, is inserted through the connecting hole 86.

[0028] As shown in Figure 2, the vehicle seat 10 is equipped with an interference suppression member 100. In the illustrated example, the interference suppression member 100 is located inward in the seat width direction from the left inner cover 32L. As shown in Figure 4, the interference suppression member 100 has a holding portion 102. The holding portion 102 is, for example, a C-shaped clip 103. The holding portion 102 holds the wire members 42, including the harness 41.

[0029] 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 part of the frame can be used as the holding part 102. Alternatively, a C-clip 103 or the like can be attached to the frame to form the holding part 102. The interference suppression member 100 may be a magnet capable of holding the wire member 42 by magnetic force. If the interference suppression member 100 is a magnet, the holding part 102 is the part that holds the wire member 42 by magnetic force.

[0030] As can be seen from Figure 2, when the vehicle seat 10 is viewed from above, the cover member 101 is located above the left anchor cover 33. That is, in the vertical direction, the cover member 101 overlaps with the left anchor cover 33. Furthermore, in the seat width direction, the cover member 101 is located inward from the airbag 28 before deployment and inward from the airbag 28 after deployment. Moreover, as shown in Figure 3, the cover member 101 is positioned so as not to overlap with 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.

[0031] The structure of the cover member 101 will now be described. As shown in Figures 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 is cylindrical in shape, slightly bulging inward in the sheet width direction. The inner end portion 62 (see Figure 6) of the rotating shaft 60 is placed inside 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.

[0032] As shown in Figure 7, the cover portion 116 has mounting holes 120 for attaching the retaining portion 102 in a portion that overlaps with the axis L of the pivot shaft 60 in the seat width direction. Therefore, the retaining portion 102 overlaps with the axis L. As can be understood from this, in the vehicle seat 10 shown in Figure 1, the cover member 101 is positioned inward in the seat width direction from the left inner cover 32L and intersects with the axis L shown in Figures 3 to 7. As shown in Figure 8, on the cover portion 116, a plurality of claw portions 122 extending to the left along the seat width direction are formed on the outward-facing surface (inner surface of the cover portion 116) in the seat width direction. The plurality of claw portions 122 surround the mounting holes 120. An engagement opening 124 is formed at the lower part of the cover portion 116.

[0033] As shown in Figure 9, the outer overlapping portion 118 has a first engaging portion 126 and a first connecting hole 128. The first engaging portion 126 is a cylindrical hollow protrusion that projects inward in the sheet width direction. Therefore, the first engaging portion 126 has a housing space 127 inside. The first connecting hole 128 is formed near the first engaging portion 126 and penetrates the outer overlapping portion 118 along the sheet width direction. The mounting hole 120, the first connecting hole 128, and the first engaging portion 126 may be aligned on the same imaginary straight line.

[0034] The protective portion 112 has a wall portion 130 that extends along the sheet width direction and curves in an arc shape 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 the other parts and can be easily deformed.

[0035] The flange portion 134 is connected to the wall portion 130. The flange portion 134 is located at the front of the wall portion 130 in the seat-front-rear direction. The through hole 114 and the flange portion 134 are curved in an arc along the circumferential direction of the pivot shaft 60, similar to the wall portion 130. As shown in Figure 6, when the flange portion 134 is attached to the support frame 70, it extends along the seat-front-rear direction. Therefore, when the pad 208 is attached to the front of the back panel 206 shown in Figure 2, the lower left portion of the pad 208 is located in front of the cover member 101, as shown in Figure 6.

[0036] The lower left rear surface of the pad 208 contacts the protective portion 112 and flange portion 134 of the cover member 101. This prevents the main body portion 110 and holding portion 102 of the cover member 101 from contacting the pad 208 with the portion of the filament member 42 held by the holding portion 102. In this way, the protective portion 112 protects the filament member 42 from the pad 208. The flange portion 134 also presses down on the lower left side of the pad 208 from the outside in the sheet width direction.

[0037] As shown in Figure 9, the protective portion 112 has an inner overlapping portion 136 that is connected to the other end of the arc of the wall portion 130. The inner overlapping portion 136 has a second engaging portion 138 and a second connecting hole 140. The second engaging portion 138 is a cylindrical hollow protrusion that projects inward in the sheet width direction. The second engaging portion 138 may also be a hole. The second connecting hole 140 is formed near the second engaging portion 138 and penetrates the inner overlapping portion 136 along the sheet width direction.

[0038] As shown in Figure 9, the state in which the first engaging portion 126 and the second engaging portion 138 are not engaged is the disengaged state. In the disengaged state, if the connecting member 92 (see Figures 7 and 8) is not inserted into the first connecting hole 128 and the second connecting hole 140, the protective portion 112 is relatively movable relative to the main body portion 110 due to the deformation of the intermediate portion 132. As shown in Figure 9, when the inner overlapping portion 136 is separated from the outer overlapping portion 118 by relative movement, the through hole 114 is opened.

[0039] As shown in Figures 7 and 10, the first engaging portion 126 and the second engaging portion 138 engage with each other to form an engagement point 142, thereby creating an engaged state. Specifically, as shown in Figure 10, the inner overlapping portion 136 is overlapped inward in the sheet width direction relative to the outer overlapping portion 118. In this overlapping, the first engaging portion 126 is detachably inserted into the second engaging portion 138. With this insertion, the first engaging portion 126 and the second engaging portion 138 engage with each other. In addition, the protective portion 112 is positioned on the main body portion 110 and the through hole 114 is closed.

[0040] As the engagement state is formed, the second connecting hole 140 overlaps the first connecting hole 128 in the sheet width direction. The connecting member 92 is inserted through the first connecting hole 128 and the second connecting hole 140. Through this insertion, the main body 110 and the protective part 112 are connected via the connecting member 92. In other words, the connecting member 92 positions and fixes the protective part 112 to the main body 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 shown in the illustrated example.

[0041] As shown in Figure 7, distance D1 is the distance between the central axis of the connecting member 92 and the central axis of the engagement point 142 when the engagement state is formed. Distance D2 is 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. 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.

[0042] The side wall portion 80 of the support frame 70 is inserted into the claw portion 122 shown in Figure 8. Also, as shown in Figure 7, the engaging claw 82 of the support frame 70 engages with the engaging opening 124. Furthermore, as shown in Figure 10, the connection hole 86 of the support frame 70 overlaps with the second engaging portion 138. The shaft portion (threaded portion) of the mounting member 90, which is inserted through the connection hole 86, is inserted into the housing space 127, which is the hollow interior of the first engaging portion 126. As a result, 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.

[0043] As shown in Figure 8, the through hole 114 and the engagement opening 124 do not overlap in the radial direction of the rotating shaft 60. Specifically, a virtual 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. Also, a virtual 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 virtual lines R1 and R2 is defined as a virtual region, the engagement opening 124 is located outside this virtual region in the circumferential direction centered on the axis L.

[0044] As shown in Figures 4-6, 8, and 9, the through-hole 114 allows the wire member 42 to pass through. In the illustrated example, the harness 41a is passed through the through-hole 114.

[0045] Figure 11 is a rear view of the main part of the vehicle seat 10. As shown in Figure 11, the lower part of the cover member 101 may be exposed from the lower part of the backboard 202. In this case, in the front-rear direction of the seat, the backboard 202 overlaps with most of the cover member 101. Alternatively, the entire cover member 101 may overlap with the backboard 202 in the front-rear direction of the seat. Thus, in the front-rear direction of the seat, at least a part of the backboard 202 overlaps with the cover member 101.

[0046] Next, we will briefly explain the assembly process for the vehicle seat 10.

[0047] When assembling the cover member 101 to the support frame 70, the worker moves the protective part 112 relative to the main body 110 by disengaging the first engaging part 126 and the second engaging part 138, as shown in Figure 9, and deforming the intermediate part 132. As a result, the through hole 114 opens. The worker can then easily pass the harness 41a constituting the wire member 42 through the open through hole 114.

[0048] Next, the worker moves the protective part 112 relative to the main body 110 along the arrow X in Figure 9, based on deforming the intermediate part 132, so that the inner overlapping part 136 of the protective part 112 approaches the outer overlapping part 118 of the main body 110. As shown in Figures 7 and 10, the worker places the outer overlapping part 118 on top of the inner overlapping part 136 and inserts the first engaging part 126 into the hollow interior of the second engaging part 138 (see Figure 10). This forms an engagement point 142 and creates an engaged state. As a result, the through hole 114 through which the wire member 42 passes becomes closed (see Figure 7). Furthermore, the worker inserts the connecting member 92 through the first connecting hole 128 and the second connecting hole 140 which are overlapping each other (see Figure 10). The connecting member 92 maintains the engaged state. In other words, the connecting member 92 prevents the through hole 114 from becoming open.

[0049] The worker inserts the side wall portion 80 of the support frame 70 (see Figure 8) 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. Also, as shown in Figure 10, the worker inserts the shaft portion (threaded portion) of the mounting member 90 into the housing space 127 of the first engaging portion 126 through the connecting hole 86 formed in the tab portion 84 of the support frame 70. As a result, the cover member 101 is attached to the support frame 70.

[0050] Subsequently, the worker attaches the support frame 70 to the back frame 204 (see Figure 2) and attaches the left outer cover 34 to the left inner cover 32L (see Figure 5). As a result, the wire 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.

[0051] The worker attaches the pad 208 to the front of the back panel 206 (see Figure 2) and the back frame 204. Furthermore, the worker covers the pad 208 with the upholstery 230 (see Figure 1). A portion of the upholstery 230 is gripped by the gripping claws 222 of the upholstery clip 220 shown in Figure 3. This completes the creation of a vehicle seat 10 with the grooved pattern 232 shown in Figure 1.

[0052] Next, we will briefly explain the operation of the vehicle seat 10.

[0053] When an occupant is seated 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 tilt angle of the seat back 20 to their preferred 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 with the pivot shaft 60 (see Figures 5 and 6) as the pivot point.

[0054] As described above, the linear member 42 positioned inside the seat back 20 is pulled in the direction of rotation of the seat back 20 as the seat back 20 rotates. However, the holding portion 102 of the cover member 101 holds the linear member 42 on the axis L of the rotating shaft 60. Therefore, the amount of movement of the linear member 42 is suppressed. As a result, it is possible to prevent the linear member 42 from being pulled out from inside the seat back 20 or the seat cushion 30.

[0055] As can be seen from Figure 6, the interference suppression member 100, which is the cover member 101, prevents the filament member 42 from interfering with other members (for example, the pad 208) around the rotating shaft 60 and the holding part 102. The cover member 101 also has a covering portion 116 that covers the inner end 62 of the rotating shaft 60. The covering portion 116 shields the rotating shaft 60 from the filament member 42. As a result, interference between the filament member 42 and the rotating shaft 60 is avoided.

[0056] This embodiment provides the following effects.

[0057] As shown in Figures 2 to 6, the vehicle seat 10 is equipped with an interference suppression member 100, and the interference suppression member 100 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 pivot shaft 60 that connects the seat back 20 to the seat cushion 30 so as to be rotatable relative to it.

[0058] The interference suppression member 100 prevents the wire member 42 from interfering with other members 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 prevents the wire member 42 from being pulled out from inside the seat back 20 or the seat cushion 30.

[0059] 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 covering portion 116 that covers the inner end portion 62 of the rotating shaft 60, and a holding portion 102 located on the covering portion 116.

[0060] The cover portion 116 shields the inner end portion 62 of the rotating shaft 60 from the wire member 42. This prevents the wire member 42 from interfering with the rotating shaft 60.

[0061] The cover member 101 has a protective portion 112. The protective portion 112 is located in front of the main body portion 110 in the front-rear direction of the sheet and extends along the width direction of the sheet. As a result, the protective portion 112 covers the front of the linear member 42.

[0062] As shown in Figure 5, by arranging the main body 110 and the protective part 112 as described above, the filament member 42 is protected from the pad 208 by the protective part 112. Therefore, for example, the filament member 42 is prevented from being pressed against the pad 208. Consequently, the filament member 42 can move within its permissible range of movement in accordance with the relative rotation of the seat back 20 with respect to the seat cushion 30.

[0063] As shown in Figure 5, the protective portion 112 is located in front of the retaining portion 102 in the front-to-back direction of the sheet and overlaps with the retaining portion 102.

[0064] With this configuration, if a load is applied to the protective part 112 from the front due to an unforeseen event, the protective part 112 can protect the holding part 102 and the wire member 42.

[0065] As shown in Figures 4, 7 to 9, the cover member 101 has a through hole 114 located between the main body 110 and the protective part 112. The through hole 114 extends in an arc shape along the circumferential direction of the rotating shaft 60. The harness 41a that constitutes the wire member 42 is inserted through the through hole 114.

[0066] Since the harness 41a (wire member 42) can be passed through the through hole 114, the options for the placement of the wire member 42 increase. In other words, the degree of freedom in the placement of the wire member 42 is improved.

[0067] Furthermore, the through-hole 114 allows relative movement of the linear member 42 relative to the cover member 101 when the seat back 20 rotates relative to the seat cushion 30. On the other hand, the through-hole 114, being an arc shape with closed ends, suppresses the amount of relative movement of the linear member 42.

[0068] As can be seen from Figures 7 to 9, the through-hole 114 is openable and closable. 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 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 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. Then, the first engaging portion 126 and the second engaging portion 138 are engaged with each other to form an engaged state.

[0069] Since the through-hole 114 can be opened and closed in this way, it is easy to pass the harness 41a (wire member 42) through the through-hole 114.

[0070] As shown in Figure 10, the vehicle seat 10 includes a support frame 70 that supports the cover member 101 and an attachment member 90 that attaches the cover member 101 to the support frame 70. The first engaging portion 126 is a hollow protrusion having a housing space 127 capable of accommodating the attachment member 90.

[0071] Since the mounting member 90 can be housed in the housing space 127 of the first engaging portion 126 while the first engaging portion 126 and the second engaging portion 138 are engaged with each other, the cover member 101 can be made more compact.

[0072] The cover member 101 has a connecting member 92. In the above-described engaged state, the connecting member 92 connects the main body 110 and the protective part 112, positioning and fixing the protective part 112 to the main body 110.

[0073] As shown in Figure 7, the connecting member 92 prevents the through-hole 114 from opening while the vehicle seat 10 is in use. Therefore, the harness 41a (wire member 42) is prevented from detaching from the through-hole 114.

[0074] 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.

[0075] 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 firmly engaged with each other.

[0076] As shown in Figure 2, the vehicle seat 10 is equipped with an airbag 28. The cover member 101 is located inward from the airbag 28 in the seat width direction, both before and after deployment.

[0077] Therefore, when the airbag 28 deploys, interference between the airbag 28 and the cover member 101 is avoided. In other words, the deployment of the airbag 28 is prevented from being hindered by the cover member 101.

[0078] Furthermore, as shown in Figure 6, the flange portion 134 of the cover member 101 is in contact with the lower left side of the pad 208. This prevents the pad 208 from shifting position along the width direction of the sheet.

[0079] As shown in Figure 8, the through hole 114 and the engagement opening 124 do not overlap in the radial direction of the rotating shaft 60. Therefore, interference between the engagement claw 82 of the support frame 70 and the harness 41a (wire member 42) passed through the through hole 114 of the cover member 101 is suppressed.

[0080] As shown in Figure 11, at least a portion of the cover member 101 overlaps the backboard 202 in the front-to-back direction of the seat. Therefore, the backboard 202 can protect the cover member 101. In addition, the cover member 101 and the backboard 202 can be compactly arranged in a predetermined part of the vehicle seat 10.

[0081] As shown in Figure 3, in the vertical direction, the skin clip 220a is located between the bottom and top of the cover member 101. Therefore, the mounting rigidity of the skin 230 by the skin clip 220a is increased by the cover member 101.

[0082] In the width direction and the front-to-back direction of the seat, the cover member 101 is positioned so as not to overlap with the vibration device 50. Therefore, even if the vibration device 50 vibrates, vibration of the cover member 101 is suppressed, and the generation of noise in the cover member 101 is also suppressed.

[0083] Furthermore, as shown in Figure 2, in the vertical direction, the cover member 101 overlaps the left anchor cover 33. This allows the cover member 101 and the ISOFIX anchor to be compactly positioned in a predetermined area of ​​the vehicle seat 10.

[0084] Next, the cover member 150 shown in Figures 12 and 13 will be described. Note that the cover member 150 is one modified example of the interference suppression member 100. Furthermore, in the following explanation, to simplify the description and facilitate understanding, the same names are used for components identical to those shown in Figures 7 to 9.

[0085] The vehicle seat 10 shown in Figure 1 is equipped with a pivot shaft 67 in the embodiment shown in Figure 12. The pivot shaft 67 spans from the left inner cover 32L to the right cover 32R shown in Figure 1.

[0086] As shown in Figure 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 slightly bulges inward in the seat width direction. The cup portion 166 has a shaft hole 169 approximately in the center. A rotating shaft 67 passes through the shaft hole 169. Therefore, the cup portion 166 intersects the axis M passing through the center of the rotating shaft 67. Thus, in the vehicle seat 10 shown in Figure 1, the cover member 150 is positioned inward in the seat width direction from the left inner cover 32L and intersects the axis M shown in Figure 12.

[0087] The cup portion 166 has a mounting hole 170 for attaching the retaining portion 102, located at a position separate from the shaft hole 169. The retaining portion 102 is, for example, a C-clip 103. The C-clip 103 has a frustoconical insertion portion 104. An engagement opening 174 is formed on the upper part of the cup portion 166.

[0088] The protective portion 162 has a wall portion 180 that extends along the sheet width direction and curves 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 Figure 9.

[0089] As shown in Figures 12 and 13, the flange portion 184 is connected to the wall portion 180. As shown in Figure 13, the flange portion 184 is located at the front of the wall portion 180 in the seat-front-rear direction. When the flange portion 184 is attached to the support frame 70, it extends along the seat-front-rear direction. Therefore, when the pad 208 is attached to the front of the back panel 206 shown in Figure 2, the lower left portion of the pad 208 is located in front of the cover member 150, as shown in Figure 13. The protective portion 162 protects the linear member 42 from the pad 208.

[0090] As shown in Figure 12, the protective portion 162 has an inner overlapping portion 186 that is connected to 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 penetrates the inner overlapping portion 186 along the sheet width direction. When the inner overlapping portion 186 is superimposed on the outer overlapping portion 168, the connecting hole 190 aligns with the mounting hole 170.

[0091] The insertion portion 104 of the C-type clip 103 is inserted into the mounting hole 170 and the connecting hole 190, which overlap each other. This positions and fixes the inner overlapping portion 186 relative to the outer overlapping portion 168, and maintains the through hole 164 in a closed state. Conversely, if the insertion portion 104 is removed from the mounting hole 170 and the connecting hole 190, the protective portion 162 becomes movable relative to the main body portion 160 due to the deformation of the intermediate portion 182. That is, if the inner overlapping portion 186 separates from the outer overlapping portion 168 due to relative movement, the through hole 164 becomes open. As can be understood from the above, in this embodiment, the holding portion 102 also serves as the connecting member 92.

[0092] As shown in Figure 13, the mounting holes 170 and the connecting holes 190 are located behind the pivot shaft 67 in a plan view of the seat cushion 30 from above. Also, as can be seen from Figure 12, the mounting holes 170 and the connecting holes 190 are located below the pivot shaft 67.

[0093] As shown in Figure 12, the through-hole 164 allows the wire member 42 to pass through. In the illustrated example, the harness 41a is passed through the through-hole 164.

[0094] In this embodiment as well, the same effects as those shown in Figures 1 to 11 can be obtained.

[0095] The following additional information is disclosed regarding the above embodiments.

[0096] (Note 1) The vehicle seat (10) of the present disclosure is a vehicle seat mounted on a vehicle and comprises a first support member (30) and a second support member (20) for supporting an occupant; a rotating shaft (60, 67) connecting the second support member to the first support member so as to be rotatable relative to it; a linear member (42) disposed inside the first support member and inside the second support member and extending from the first support member to the second support member; and an interference suppression member (100) having a holding portion (102) for holding the linear member, and around the holding portion for suppressing interference between the linear member and members other than the linear member.

[0097] With this configuration, when the second support member rotates relative to the first support member, the amount of movement of the wire member is suppressed. Therefore, it is possible to prevent the wire member from being pulled out from inside the first support member or the second support member. In addition, the interference suppression member prevents the wire member from interfering with other members in the vicinity of the rotating shaft.

[0098] (Note 2) In the vehicle seat described in Appendix 1, the holding portion may hold the linear member on the axis of the rotating shaft.

[0099] By holding the wire member on the axis of the rotating shaft with an interference suppression member, the amount of movement of the wire member is further suppressed. This prevents the wire member from being pulled out from inside the first support member or the second support member.

[0100] (Note 3) In the vehicle seat described in Appendix 2, the rotating shaft has 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 (110) including a covering portion (116) that covers the inner end of the rotating shaft, and a holding portion located on the covering portion.

[0101] This configuration makes it possible to avoid interference between the wire members and the rotating shaft.

[0102] (Note 4) In the vehicle seat described in Appendix 3, the cover member has a protective portion (112) that is located in front of the main body in the front-rear direction of the seat and extends along the width direction of the seat, and the protective portion may cover the front of the linear member.

[0103] The protective section protects the wire member from pads and the like. As a result, for example, the wire member is prevented from being pressed against the pad, and the wire member can move within the allowable range of movement in conjunction with the relative rotation of the second support member relative to the first support member.

[0104] (Note 5) In the vehicle seat described in Appendix 4, the protective portion may be located in front of the retaining portion in the front-rear direction of the seat and may overlap the retaining portion.

[0105] With this configuration, if a load is applied from the front to the protective part of the cover member due to an unforeseen event, the protective part can protect the holding part.

[0106] (Note 6) In the vehicle seat described in Appendix 4 or 5, the cover member is located between the main body and the protective part and has a through hole (114) that extends in an arc shape along the circumferential direction of the rotating shaft, and the linear member may be inserted through the through hole.

[0107] Since the wire members can be passed through the through holes, the options for the placement of the wire members increase. In other words, the degree of freedom in the placement of the wire members is improved. Furthermore, the through holes, while allowing relative movement of the wire members relative to the cover member during the relative rotation of the second support member with respect to the first support member, suppress the amount of relative movement of the wire members based on their closed arc shape at both ends.

[0108] (Note 7) In the vehicle seat described in Appendix 6, the cover member has 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.

[0109] Since the through-hole can be opened and closed, it is easy to pass the wire member through the through-hole.

[0110] (Note 8) In the vehicle seat described in Appendix 7, the main body has a first engaging portion (126), and the protective portion has a second engaging portion (138) that is detachably engaged with the first engaging portion. When the first engaging portion and the second engaging portion are disengaged, the protective portion becomes rotatable relative to the main body around the intermediate portion and the through hole is opened. When the first engaging portion and the second engaging portion are engaged, the protective portion is positioned on the main body and the through hole is closed.

[0111] It is easy to maintain the open or closed state of the through-hole.

[0112] (Note 9) In the vehicle seat described in Appendix 8, the seat comprises a support frame (70) for supporting the cover member and an attachment member (90) for attaching the cover member to the support frame, and the first engaging portion may be a hollow protrusion having a storage space (127) capable of accommodating the attachment member.

[0113] Since the mounting member can be housed in the second engaging portion while the first engaging portion and the second engaging portion are engaged with each other, the cover member can be made more compact.

[0114] (Note 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 and the protective part and positions and fixes the protective part to the main body when the second engaging part is engaged with the first engaging part.

[0115] This prevents the through-hole from becoming open while the vehicle seat is in use. Consequently, the wire member is prevented from detaching from the through-hole.

[0116] (Note 11) In the vehicle seat described in Appendix 10, the distance (D1) between the connecting member and the engagement points (142) of the first and second engagement parts may be shorter than the shortest distance (D2) between the center of the rotating shaft and the engagement points.

[0117] Since the connecting member and the engagement point are in close proximity, the first engagement part and the second engagement part are firmly engaged with each other.

[0118] (Note 12) In a vehicle seat described in any one of the appendices 1 to 11, an airbag (28) is provided, and the interference suppression member may be located inward from the airbag in the seat width direction.

[0119] When the airbag deploys, interference between the airbag and the interference suppression member is avoided.

[0120] (Note 13) In the vehicle seat described in Appendix 7, the cover member (150) may have a connecting member (92) that connects the main body and the protective part and positions and fixes the protective part to the main body when the through hole is closed.

[0121] This prevents the through-hole from becoming open while the vehicle seat is in use. Therefore, it prevents the wire member from detaching from the through-hole.

[0122] (Note 14) In the vehicle seat described in Appendix 13, the connecting member may also serve as the holding portion.

[0123] This reduces the number of parts in vehicle seats. It also simplifies the shape of the cover components.

[0124] Furthermore, the present invention is not limited to the disclosure described above, and can take various configurations without departing from the spirit of the invention. [Explanation of symbols]

[0125] 10...Vehicle seat 20...Seat back 28...Airbag 30...Seat cushion 33... Anchor cover 41, 41a... Harness 42…Fiber members 60, 67…Rotating shafts 62...Inner end 70...Support frame 82...Engaging claw 90...Mounting member 92...Connecting member 100...Interference suppression member 101, 150... Cover members 102... Holding part 110, 160...Main unit 112, 162...Protective unit 114, 164...Through hole 116...Covered part 124, 174...Engagement opening 126...First engagement part 132, 182...Intermediate section 134, 184...Flange section 138...Second engaging part 142...Engaging point 166...Cup area 208...Pad

Claims

1. A vehicle seat installed in a vehicle, A first support member and a second support member that support the occupants, A rotating shaft connects the second support member to the first support member so as to be rotatable relative to it, A linear member is disposed inside the first support member and inside the second support member, and extends from the first support member to the second support member, An interference suppression member having a holding portion for holding the linear member, and around the holding portion, the linear member is prevented from interfering with members other than the linear member, A vehicle seat equipped with [a specific feature / feature].

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

3. In the vehicle seat according to claim 2, the pivot shaft has an inner end facing inward of the vehicle seat in the seat width direction, The interference suppression member is a cover member having a main body portion including a covering portion that covers the inner end of the rotating shaft, and a holding portion located in the covering portion, for a vehicle seat.

4. In the vehicle seat according to claim 3, the cover member has a protective portion that is located in front of the main body portion in the front-rear direction of the seat and extends along the width direction of the seat, The protective part is a vehicle seat that covers the front of the linear member.

5. A vehicle seat according to claim 4, wherein the protective portion is located in front of the retaining portion in the front-rear direction of the seat and overlaps the retaining portion.

6. In the vehicle seat according to claim 4, the cover member is located between the main body and the protective part and has a through hole that extends in an arc shape along the circumferential direction of the rotating shaft, A vehicle seat through which the linear member is inserted.

7. In the vehicle seat according to claim 6, the cover member has a deformable intermediate portion that connects the main body portion and the protective portion, A seat for a vehicle, wherein the protective part rotates relative to the main body around the intermediate part, thereby opening and closing the through hole.

8. In the vehicle seat according to claim 7, the main body portion has a first engaging portion, The protective portion has a second engaging portion that is detachably engaged with the first engaging portion, When the first engaging portion and the second engaging portion are released, the protective portion becomes rotatable relative to the main body portion around the intermediate portion and the through hole becomes open. A vehicle seat in which the protective portion is positioned on the main body and the through hole is closed when the first engaging portion and the second engaging portion are engaged.

9. A vehicle seat according to claim 8, comprising a support frame for supporting the cover member and a mounting member for attaching the cover member to the support frame, The first engaging portion is a hollow protrusion having a housing space capable of accommodating the mounting member, in a vehicle seat.

10. A vehicle seat according to claim 8, wherein the cover member has a connecting member that connects the main body and the protective part, and positions and fixes the protective part to the main body when the second engaging part is engaged with the first engaging part.

11. A vehicle seat according to claim 10, wherein the distance between the connecting member and the engagement points of the first engagement portion and the second engagement portion is shorter than the shortest distance between the center of the rotating shaft and the engagement points.

12. A vehicle seat according to any one of claims 1 to 11, comprising an airbag, The interference suppression member is located inward from the airbag in the seat width direction, and is a seat for a vehicle.

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