Seat structure

Abstract

This invention provides a seat structure that improves the acoustic performance of a speaker while maintaining the usability of the seatbelt webbing, thereby improving operability. The seat structure includes: a seat, including a seat back; a speaker disposed inside the seat back and facing the front of the seat back; a webbing outlet guide disposed above the speaker and at least a portion overlapping the sound-emitting portion of the speaker in the width direction; a seatbelt webbing extending downward along the front surface of the seat back through the webbing outlet guide; and a limiting member disposed on the surface of the seat back. The limiting member has a limiting portion that at least limits the position of the seatbelt webbing in the width direction, and the limiting portion prevents at least a portion of the seatbelt webbing from overlapping the sound-emitting portion of the speaker in the width direction.

Description

Technical Field

[0001] This invention relates to a seat structure, and more particularly to a seat structure equipped with a speaker and a seatbelt. Background Technology

[0002] In recent years, efforts to provide access to sustainable transportation systems that also take into account vulnerable groups such as the elderly, disabled, and children among transportation participants have become increasingly active. To achieve this goal, research and development efforts are focused on further improving the safety and convenience of transportation through developments related to enhancing operability. However, in these developments, the operability of the vehicle's seating structure remains a challenge.

[0003] In existing technology, the seat structure in a vehicle can be equipped with seat belts, which provide safety protection for passengers when they are seated. Typically, the seat belt webbing, which is installed using a retractor, is located inside the seat back, and a pull-out opening is provided at the top of the seat back for easy removal of the seat belt webbing. Furthermore, the seat structure can be equipped with speakers, allowing passengers to enjoy auditory entertainment (e.g., playing music) or receive notifications (e.g., playing warning sounds) while seated. Typically, the speakers are located inside the seat back, and sound is emitted outwards through speaker grilles. However, in such a seat structure, the seat belt webbing hangs down from the pull-out opening when not in use, potentially obstructing the speaker's sound-emitting area and reducing its acoustic performance. Additionally, if the seat belt is installed away from the speaker and away from the upper part of the seat back to avoid the speaker's sound-emitting area, the usability of the seat belt decreases.

[0004] This invention aims to improve the operability of the seat structure in order to solve the aforementioned problems. Furthermore, it contributes to improving traffic safety and thus aids in the development of sustainable transportation systems.

[0005] [Existing technical documents]

[0006] [Patent Literature]

[0007] [Patent Document 1] Japanese Utility Model Publication No. S63-176755 Summary of the Invention

[0008] This invention provides a seat structure that improves the audio performance of the speaker while maintaining the usability of the seat belt webbing, thereby improving operability.

[0009] The present invention provides a seat structure comprising: a seat including a seat back; a speaker disposed inside the seat back and facing the front of the seat back; a webbing outlet guide disposed above the speaker and at least a portion of which overlaps with the sound-emitting portion of the speaker in the width direction of the seat back; a seat belt webbing extending downward along the front surface of the seat back through the webbing outlet guide; and a limiting member disposed on the surface of the seat back, wherein the limiting member has a limiting portion that at least limits the position of the seat belt webbing in the width direction, and the limiting portion prevents at least a portion of the seat belt webbing from overlapping with the sound-emitting portion of the speaker in the width direction.

[0010] In an embodiment of the present invention, the limiting portion is located in the width direction between the center portion and the peripheral portion of the sound-emitting portion.

[0011] In an embodiment of the present invention, the limiting portion is located between the sound-emitting portion and the webbing outlet guide.

[0012] In an embodiment of the present invention, the seat further includes a headrest disposed on the seat back, the speaker and the webbing outlet guide are located on at least one side of the headrest in the width direction relative to the center of the headrest, and the limiting portion is located in the width direction at a position further away from the center of the headrest than the center of the sound-emitting portion.

[0013] In an embodiment of the invention, the limiting member is flexible and includes: a base extending forward and upward along the surface of the seat back; and an extension extending outward in the width direction from the upper end of the base relative to the center portion of the sound-emitting portion, and the limiting portion is formed by the end of the base corresponding to the extension.

[0014] In an embodiment of the invention, the seat further includes a skin component that covers the seat back to form the surface, and a speaker grille that covers the speaker from the front of the skin component. The limiting component has a stitched portion sewn to the skin component, and the stitched portion is located on the skin component at the part covered by the speaker grille.

[0015] In an embodiment of the invention, the limiting member has a flange extending along the epidermal member, and the suture portion is disposed on the flange.

[0016] In an embodiment of the present invention, the skin component has an opening located at a position opposite to the sound-emitting part, the seat further includes a reinforcing member located at the periphery of the opening and fixed to the skin component, and the limiting member and the reinforcing member are sewn together to the skin component.

[0017] In an embodiment of the invention, the seat further includes an interior trim member fixed to the seat back and disposed on the inner side of the seat back relative to the outer skin member, and the stitching is between the speaker grille and the interior trim member.

[0018] The seat also includes an interior trim piece fixed to the seat back and disposed on the inner side of the seat back relative to the outer skin component, and the stitching is located between the speaker grille and the interior trim piece.

[0019] Based on the above, in the seat structure of the present invention, the limiting member is located on the surface of the seat back, thus allowing for easy installation of the limiting member to restrict the position of the seat belt webbing without altering the original seat structure configuration. Furthermore, even if at least a portion of the webbing outlet guide overlaps with the speaker's sound-emitting portion in the width direction to closely align the webbing outlet guide and the speaker, the limiting member can still prevent at least a portion of the seat belt webbing from overlapping with the speaker's sound-emitting portion in the width direction, thereby preventing the entire area of ​​the seat belt webbing pulled from the webbing outlet guide from obscuring the speaker's sound-emitting portion. Accordingly, the seat structure of the present invention improves the speaker's acoustic performance while maintaining the usability of the seat belt webbing, thereby improving operability.

[0020] To make the above features and advantages of the present invention more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a partial schematic diagram of the seat structure according to an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 The diagram shows a partial enlarged view of the seat structure around the limiting components;

[0023] Figure 3 yes Figure 2 The diagram shows a cross-section of the seat structure after it has been cut along tangent I-I' around the restraining component.

[0024] Figure 4 Show Figure 1 The diagram shows a partial view of the seat structure with the speaker grille removed.

[0025] Explanation of reference numerals in the attached figures

[0026] 100: Seat structure;

[0027] 110: Seat;

[0028] 111: Seat backrest;

[0029] 111s: Front surface;

[0030] 112: Headrest;

[0031] 112c: Center;

[0032] 113: Exterior components;

[0033] 113a: Opening;

[0034] 113p: Grille cover;

[0035] 114: Speaker grille;

[0036] 115: Reinforcing components;

[0037] 116: Interior trim components;

[0038] 120: Speaker;

[0039] 122: Vocal part;

[0040] 122a: Central part;

[0041] 122b: Peripheral part;

[0042] 130: Webbing exit guide;

[0043] 140: Seatbelt webbing;

[0044] 150: Restricting component;

[0045] 152: Restriction section;

[0046] 154: Base;

[0047] 154a: End;

[0048] 156: Extension;

[0049] 158: Suture section;

[0050] 159: Flange portion;

[0051] H: Up and down direction;

[0052] W: Width direction. Detailed Implementation

[0053] The present invention will now be described in detail with reference to exemplary embodiments thereof, examples of which are illustrated in the accompanying drawings. Figure 1 This is a partial schematic diagram of the seat structure according to an embodiment of the present invention. Figure 2 yes Figure 1 The diagram shown is a partial enlarged view of the seat structure around the restraining component. Figure 3 yes Figure 2 The diagram shows a cross-section of the seat structure after it has been cut along the tangent I-I' around the restraining component. Figure 4 Show Figure 1 The diagram shown is a partial view of the seat structure with the speaker grilles removed. The following will use... Figures 1 to 4 This is to illustrate the specific structure of the seat structure 100 in this embodiment, but this is only one example. The present invention is not limited thereto and can be adjusted according to needs.

[0054] Please refer to Figure 1 In this embodiment, the seat structure 100 includes a seat 110, a speaker 120, a webbing outlet guide 130, a seat belt webbing 140, and a restraining member 150. The seat 110 includes a seat back 111. The speaker 120 is disposed inside the seat back 111 (the corresponding position is shown in dashed lines) and faces the front of the seat back 111. The webbing outlet guide 130 is disposed above the speaker 120, and at least a portion thereof is aligned with the sound-emitting portion 122 of the speaker 120 in the width direction W of the seat back 111 (e.g., referring to...). Figure 1 The seat belt webbing 140 overlaps in the left-right direction. The webbing 140 extends downwards along the front surface 111s of the seat back 111 via the webbing exit guide 130. A limiting member 150 is provided on the surface of the seat back 111 (which may be the top surface, the front surface, or the surface at the junction of the two). The limiting member 150 has a limiting portion 152 that at least limits the position of the seat belt webbing 140 in the width direction W, and the limiting portion 152 prevents at least a portion of the seat belt webbing 140 from overlapping with the sound-emitting portion 122 of the speaker 120 in the width direction W.

[0055] Specifically, in this embodiment, as Figure 1 As shown, seat 110 refers to a component in a vehicle (not shown) for passengers to sit on, which, in addition to seat back 111, also includes a seat cushion (not shown), so that passengers can sit on the seat cushion and rest their backs against the front surface 111s of seat back 111. Furthermore, speaker 120 is built into seat back 111 and is positioned on one side of seat back 111 in the width direction W of the seat back 111 with the sound-emitting part 122 facing forward (e.g., Figure 1The speaker 120 is positioned on the right side of the seat 110, allowing the sound emitted by its emitting portion 122 to travel forward without being easily blocked by passengers sitting on the seat 110. Furthermore, the webbing exit guide 130 is positioned higher than the speaker 120 and overlaps at least partially with the emitting portion 122 in the width direction W. This allows the seatbelt webbing 140 to be pulled out from the webbing exit guide 130 located near the emitting portion 122 in the width direction W, making the use of the seatbelt webbing 140 (e.g., by inserting it into a buckle seat next to the seat 110 via a buckle at its end) easier. However, the present invention does not limit the specific structure of the seat 110, speaker 120, and webbing exit guide 130, which can be adjusted as needed.

[0056] Therefore, in this embodiment, as Figure 1 As shown, the seat belt webbing 140, which is the seat belt body, is installed inside the seat back 111 via a retractor (not shown), and is pulled outward (forward) and downward from the pull-out opening provided on the seat back 111 (i.e., at the webbing outlet guide 130), so that it can be used by inserting a buckle (not shown) provided on the pulled-out portion into a buckle seat next to the seat 110. Correspondingly, when the seat belt webbing 140 is not used (i.e., not inserted into the buckle (not shown) next to the seat 110), the seat belt webbing 140 extends downward from the webbing outlet guide 130 along the front surface 111s of the seat back 111. However, in other embodiments not shown, the seat belt webbing 140 may also be installed outside the seat back 111 via a retractor (not shown), and pulled out forward and downward from the webbing outlet guide 130 provided on the seat back 111. The present invention does not limit the specific structure and installation method of the seat belt webbing 140, as long as the seat belt webbing 140 can extend downward along the front surface 111s of the seat back 111 through the webbing outlet guide 130, and it can be adjusted according to needs.

[0057] Furthermore, in this embodiment, such as Figure 1As shown, the seat structure 100 further includes a limiting member 150 to adjust the relative position of the seat belt webbing 140, which is drawn from the webbing outlet guide 130, relative to the sound-emitting portion 122 of the speaker 120 in the width direction W. The limiting member 150 is, for example, a component additionally mounted on the surface of the seat back 111 (which may be the top surface, the front surface, or the surface at the junction of the two), and the limiting portion 152 of the limiting member 150 can limit the position of the seat belt webbing 140 in the width direction W. For example, the limiting portion 152 of the limiting member 150 is located on the extension path of the seat belt webbing 140 extending downward from the webbing outlet guide 130 on the upper side along the front surface 111s of the seat back 111, thereby limiting the position of the seat belt webbing 140 in the width direction W. For example, it causes the seat belt webbing 140 extending downward along the front surface 111s of the seat back 111 to be offset outward in the width direction W, so that at least a portion of the seat belt webbing 140 does not overlap with the sound-emitting portion 122 of the speaker 120. (Refer to...) Figure 1 The dashed line extending downwards from the webbing exit guide 130, shown in the center, represents the position of the seatbelt webbing 140 without the limiting member 150. With the limiting member 150, even if the webbing exit guide 130 is positioned close to the sound-emitting part 122 in the width direction W, the seatbelt webbing 140 pulled from the webbing exit guide 130 can expose more area of ​​the sound-emitting part 122 due to the restriction of the limiting member 150. Thus, the seatbelt webbing 140, due to the limiting portion 152 of the limiting member 150, can be offset in the width direction W, at least partially avoiding the sound-emitting part 122 of the speaker 120.

[0058] With the above settings, in the seat structure 100 of this embodiment, as follows: Figure 1 As shown, the limiting member 150 is located on the surface of the seat back 111, so the original configuration of the seat structure 100 can be easily configured to limit the position of the seat belt webbing 140 without changing the original configuration of the seat structure 100. Furthermore, even if at least a portion of the webbing outlet guide 130 overlaps with the sound-emitting portion 122 of the speaker 120 in the width direction W to closely align the webbing outlet guide 130 and the speaker 120, the limiting member 150 can still prevent at least a portion of the seat belt webbing 140 from overlapping with the sound-emitting portion 122 of the speaker 120 in the width direction W, thereby preventing the entire area of ​​the seat belt webbing 140 pulled out from the webbing outlet guide 130 from obscuring the sound-emitting portion 122 of the speaker 120. Accordingly, the seat structure 100 can improve the acoustic performance of the speaker 120 while maintaining the usability of the seat belt webbing 140, thereby improving operability.

[0059] Furthermore, in this embodiment, as Figure 1As shown, the limiting portion 152 is located in the width direction W between the center portion 122a and the peripheral portion 122b of the sound-emitting portion 122. Here, the limiting portion 152 is positioned in the width direction W between the center portion 122a and the peripheral portion 122b near the outer side (e.g., the right side of the drawing). However, in other embodiments not shown, the limiting portion 152 may also be located in the width direction W between the center portion 122a and the peripheral portion 122b near the inner side, i.e., the central side (e.g., the left side of the drawing). Thus, the seatbelt webbing 140, after being pulled out by the webbing exit guide 130 and limited by the limiting member 150, is positioned further outward in the width direction W than the center portion 122a of the sound-emitting portion 122 (e.g., the right side of the drawing), so that at least half of the sound-emitting portion 122 (e.g., the left side of the drawing) is not obscured by the seatbelt webbing 140. That is, the limiting part 152 can prevent the seat belt webbing 140 from overlapping with at least half of the sound-emitting part 122 of the speaker 120 in the width direction W. With this arrangement, the seat belt webbing 140 can be held in a position easily avoiding the speaker 120 by the limiting member 150 (i.e., it is not necessary to specifically position the seat belt webbing 140 away from the speaker 120), and can suppress the twisting caused by the seat belt webbing 140 being pulled out from a distance and the wear of the seat belt webbing 140 at the webbing exit guide 130. Accordingly, the seat structure 100 can further improve the acoustic performance of the speaker 120 while maintaining the usability of the seat belt webbing 140, thereby improving operability.

[0060] Furthermore, in this embodiment, as Figure 1 As shown, the limiting part 152 is located between the sound-emitting part 122 and the webbing exit guide 130. As an example, the limiting part 152 is located between the sound-emitting part 122 and the webbing exit guide 130 in the width direction W, and also between the sound-emitting part 122 and the webbing exit guide 130 in the vertical direction H. Thus, the seat belt webbing 140, after being pulled out by the webbing exit guide 130 and limited by the limiting member 150, can be pulled out in the most appropriate manner (e.g., the pulled-out portion is short, the pulled-out portion does not bend significantly, etc.) and extends downward along the front surface 111s of the seat back 111. With the above arrangement, the seat belt webbing 140 can be held in a position easily avoiding the speaker 120 after being limited by the limiting member 150 (i.e., it is not necessary to specifically place the seat belt webbing 140 away from the speaker 120), and the twisting caused by the seat belt webbing 140 being pulled out from a distance and the wear of the seat belt webbing 140 at the webbing exit guide 130 can be suppressed. Accordingly, the seat structure 100 can further improve the audio performance of the speaker 120 while maintaining the usability of the seat belt webbing 140, thereby improving operability.

[0061] Furthermore, in this embodiment, such as Figure 1 As shown, the seat 110 also includes a headrest 112 disposed on the seat back 111. The speaker 120 and the webbing outlet guide 130 are located in the width direction W on at least one side (e.g., the right side of the figure) relative to the center 112c (as shown by the dashed line) of the headrest 112, and the limiting portion 152 is located in the width direction W further away from the center 112c of the headrest than the center portion 122a of the sound-emitting portion 122 (e.g., the right side of the center 112c in the figure). Thus, when a passenger sits on the seat cushion (not shown) of the seat 110 and with their back against the front surface 111s of the seat back 111, the passenger can rest their head against the front surface of the headrest 112 (but is not limited thereto). Furthermore, the speaker 120 and the webbing outlet guide 130 are positioned further to one side (e.g., the right side of the drawing) in the width direction W relative to the center 112c of the headrest 112, and the limiting portion 152 restricts the seat belt webbing 140 at a position further away from the center 122a of the sound-emitting portion 122 than the center 122a of the headrest 112 (e.g., to the right of the center 112c in the drawing). Thus, the seat belt webbing 140 not only avoids the sound-emitting portion 122, but also extends downward along the front surface 111s at a position further outward relative to the center of the seat 110 (corresponding to the center 112c of the headrest 112). Therefore, compared to positioning the limiting portion 152 in the width direction W between the center 122a of the sound-emitting portion 122 and the inner, central side (e.g., the left side of the drawing), passengers can easily grasp the outer seat belt webbing 140 when using the seat belt (the seat belt webbing 140 is not obstructed by the passenger), thereby increasing the usability of the seat belt webbing 140.

[0062] Therefore, in this embodiment, as Figure 2 and Figure 3As shown, the limiting member 150 is flexible, for example, made of rubber. The limiting member 150 includes a base 154 and an extension 156. The base 154 extends forward and upward (i.e., protrudes) along the surface of the seat back 111 (which may be the top surface, the front surface, or the surface at the junction of the two). The extension 156 extends from the upper end of the base 154 outward in the width direction W (e.g., to the right of the drawing) relative to the center portion 122a of the sound-emitting portion 122, and the limiting portion 152 is formed by the end portion 154a of the base 154 corresponding to the extension 156 (i.e., the junction of the base 154 and the extension 156). However, in other embodiments not shown, when the limiting portion 152 is located in the width direction W between the central portion 122a and the peripheral portion 122b near the inner side, i.e., the central side (for example, the left side of the drawing), the extension portion 156 of the limiting member 150 extends from the upper end of the base 154 inwards in the width direction W relative to the central portion 122a of the sound-emitting portion 122 (for example, the left side of the drawing) with respect to the central portion 122a of the sound-emitting portion 122. Therefore, it is sufficient that the extension portion 156 extends further away from the central portion 122a of the sound-emitting portion 122 than the base 154. The present invention does not limit the specific structure of the limiting member 150, which can be adjusted according to requirements.

[0063] With the above settings, in this embodiment, as follows: Figure 2 and Figure 3 As shown, because the restraining member 150 is flexible, it will not cause harm to the passenger even if it protrudes from the seat back 111. Furthermore, even if the passenger pulls on the seatbelt webbing 140, damage to the flexible restraining member 150 and wear on the seatbelt webbing 140 at the restraining member 150 can be suppressed. Moreover, the restraining member 150 uses the end 154a of the base 154 corresponding to the extension 156 as the restraining portion 152. Therefore, when the restraining member 150 holds the seatbelt webbing 140 and is subjected to a load from the seatbelt webbing 140 (e.g., the force applied by the passenger when pulling on the seatbelt webbing 140), the load from the seatbelt webbing 140 is transmitted to the base 154 in the shear direction, thus the restraining member 150 is less likely to break due to force. Furthermore, the limiting member 150 can clamp the seat belt webbing 140 between the limiting portion 152 (end 154a), the extension portion 156, and the surface of the seat back 111, thus suppressing the amount of protrusion of the limiting member 150 from the surface of the seat back 111. Moreover, even when using a flexible limiting member 150, the seat belt webbing 140 can be securely held by the aforementioned clamping. Accordingly, the seat structure 100 can further improve the usability of the seat belt webbing 140.

[0064] Furthermore, in this embodiment, such as Figures 1 to 3As shown, the seat 110 also includes a skin component 113 that covers the seat back 111 to form the surface (which may be the top surface, the front surface, or the surface at the junction of the two), and a speaker grille 114 that covers the speaker 120 from the front of the skin component 113. The limiting member 150 has a stitch 158 sewn to the skin component 113, and the stitch 158 is located in the portion of the skin component 113 covered by the speaker grille 114 (referred to herein as grille cover 113p). That is, the skin component 113 covering the seat back 111 has the grille cover 113p, and the speaker grille 114 is mounted in front of the speaker 120 and at least partially covers the grille cover 113p. Therefore, the sound emitted by the sound-emitting part 122 of the speaker 120 can be transmitted outward (front side) through the speaker grille 114. Furthermore, the limiting member 150 is fixed to the grille cover 113p of the outer skin member 113 by stitching and is covered by the speaker grille 114. Thus, the limiting member 150 is securely fixed between the outer skin member 113 and the speaker grille 114 by the stitching portion 158, and the stitching portion 158 is hidden between the speaker grille 114 and the grille cover 113p of the outer skin member 113, resulting in a good appearance. In addition, with the limiting portion 152 located between the sound-emitting portion 122 and the webbing exit guide 130, the limiting portion 152 is further positioned above and close to the sound-emitting portion 122 of the speaker 120. Therefore, the seatbelt webbing 140 does not need to be specifically positioned away from the speaker 120 to effectively avoid the sound-emitting portion 122 and improve the acoustic performance of the speaker 120. Simultaneously, it can suppress the twisting caused by the seatbelt webbing 140 being pulled out from a distance, thereby improving the usability of the seatbelt webbing 140.

[0065] Therefore, in this embodiment, as Figure 2 and Figure 3 As shown, the limiting member 150 has a flange 159 extending along the skin member 113, and a stitch 158 is provided on the flange 159. As an example, the limiting member 150 is configured by bending the extension 156, the base 154, and the flange 159 together to form a structure with a generally Z-shaped cross-section (e.g., ...). Figure 3As shown), the end 154a of the base 154 corresponding to the extension 156 forms a limiting portion 152, and the flange 159 forms a stitching portion 158. Therefore, the limiting member 150 can extend along the skin member 113 and be fixed to the skin member 113 by stitching at the flange 159 (forming the stitching portion 158), and can be easily and securely clamped between the skin member 113 and the speaker grille 114 by the flange 159 (forming the stitching portion 158). Furthermore, the limiting portion 152 (the end 154a of the base 154 corresponding to the extension 156) for holding the seatbelt webbing 140 extends from the securely fixed flange 159, so even when using a flexible limiting member 150, the seatbelt webbing 140 can be securely held by the aforementioned clamping. However, the present invention does not limit the specific structure of the limiting member 150, which can be adjusted according to requirements.

[0066] Furthermore, in this embodiment, as Figure 3 and Figure 4 As shown, the outer skin component 113 has an opening 113a located opposite the sound-emitting part 122, and the seat 110 also includes a reinforcing member 115 located around the periphery of the opening 113a and fixed to the outer skin component 113. As an example, two speakers 120 (such as...) are provided on the seat back 111. Figure 4 In the case shown), the skin component 113 may be provided with a single opening 113a corresponding to the two sound-emitting parts 122 (as shown). Figure 4 As shown), it may also have two openings (not shown) corresponding to the two sound-emitting parts 112 respectively. The skin member 113 exposes the sound-emitting part 122 through the opening 113a, and the edge of the opening 113a forms the aforementioned grille cover 113p. The speaker grille 114 covers the front of the opening 113a and at least partially covers the grille cover 113p. Furthermore, the reinforcing member 115 is, for example, a reinforcing frame that extends along the contour of the opening 113a (corresponding to the grille cover 113p). In this way, the opening 113a can prevent the skin member 113 from blocking the sound-emitting part 122 from the front side and affecting the acoustic performance of the speaker 120, and the reinforcing member 115 can suppress the deformation or damage of the skin member 113 between the opening 113a and the grille cover 113p. However, the present invention does not limit the specific structure of the reinforcing member 115 or its presence or absence, and it can be adjusted according to needs.

[0067] Furthermore, in this embodiment, such as Figure 3 and Figure 4As shown, the limiting member 150 and the reinforcing member 115 are sewn together to the skin member 113. As an example, the reinforcing member 115 is provided on the inner side of the grid cover portion 113p of the skin member 113, and the flange portion 159 of the limiting member 150 is provided on the outer side of the grid cover portion 113p of the skin member 113. When the flange portion 159 of the limiting member 150 is sewn to the skin member 113, the reinforcing member 115 is further sewn to the grid cover portion 113p of the skin member 113 (corresponding to the opening 113a). Furthermore, the flange portion 159 of the limiting member 150, the grid cover portion 113p of the skin member 113, and the reinforcing member 115 are sewn together sequentially from the outside to the inside. Thus, by securely fixing the limiting member 150 and the reinforcing member 115 together to the outer skin member 113, the structural strength of the limiting member 150 can be improved, allowing it to more reliably restrict the position of the seat belt webbing 140. In other embodiments not shown, the reinforcing member 115 may also be disposed on the outer side of the grille cover 113p of the outer skin member 113, so that the flange 159 of the limiting member 150, the reinforcing member 115, and the grille cover 113p of the outer skin member 113 are sequentially sewn together from the outside to the inside. Alternatively, the flange 159 of the limiting member 150 and the reinforcing member 115 may be sewn separately, or installed in other ways on the periphery of the opening 113a of the outer skin member 113. The present invention does not limit the fixing method and order of the limiting member 150 and the reinforcing member 115, which can be adjusted as needed.

[0068] Therefore, in this embodiment, as Figure 3 and Figure 4As shown, the seat 110 also includes an interior trim member 116 fixed to the seat back 111 and disposed on the inner side of the seat back 111, further inside the seat back 111 than the cover member 113, with a stitch 158 located between the speaker grille 114 and the interior trim member 116. As an example, the interior trim member 116 is disposed inside the speaker grille 114, surrounding the speaker 120 and corresponding to the inner side of the grille cover 113p of the cover member 113. Thus, when the flange 159 of the limiting member 150 (forming the stitch 158) is stitched to the grille cover 113p of the cover member 113, the stitch 158 (flange 159) corresponds to the outer speaker grille 114 and the inner interior trim member 116, and is held between the speaker grille 114 and the interior trim member 116, and supported from the outside and inside by the speaker grille 114 and the interior trim member 116. Thus, the restraining member 150 is firmly fixed by being clamped between the interior trim member 116, which has a higher structural strength, and the speaker grille 114, thereby improving the structural strength of the restraining member 150 and enabling it to more reliably restrict the position of the seat belt webbing 140. However, the present invention does not limit the specific structure of the interior trim member 116 or its presence or absence, and it can be adjusted as needed.

[0069] In summary, in the seat structure of the present invention, the limiting member is located on the surface of the seat back, thus allowing for easy installation of the limiting member to restrict the position of the seat belt webbing without altering the original seat structure configuration. Furthermore, even if at least a portion of the webbing outlet guide overlaps with the speaker's sound-emitting portion in the width direction to closely align the webbing outlet guide and the speaker, the limiting member can still prevent at least a portion of the seat belt webbing from overlapping with the speaker's sound-emitting portion in the width direction, thereby preventing the entire area of ​​the seat belt webbing pulled from the webbing outlet guide from obscuring the speaker's sound-emitting portion. Preferably, the limiting member is located in the width direction between the center and peripheral portions of the sound-emitting portion, and between the sound-emitting portion and the webbing outlet guide. This allows the seat belt webbing to be held in a position easily avoiding the speaker, and suppresses twisting caused by the seat belt webbing being pulled out from a distance, as well as wear on the seat belt webbing at the webbing outlet guide. Accordingly, the seat structure of the present invention improves the speaker's acoustic performance while maintaining the usability of the seat belt webbing, thereby improving operability.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A seat structure, characterized in that, include: Seats, including seat backs; A speaker is disposed inside the seat back and faces the front of the seat back; A webbing outlet guide is disposed above the speaker, and at least a portion thereof overlaps with the sound-emitting portion of the speaker in the width direction of the seat back. The seat belt webbing extends downward along the front surface of the seat back through the webbing outlet guide. as well as A limiting component is disposed on the surface of the seat back, wherein The limiting member has a limiting portion that at least limits the position of the seat belt webbing in the width direction, and The limiting portion prevents at least a portion of the seatbelt webbing from overlapping the sound-emitting portion of the speaker in the width direction.

2. The seat structure according to claim 1, characterized in that, The limiting portion is located in the width direction between the center portion and the peripheral portion of the sound-emitting portion.

3. The seat structure according to claim 1, characterized in that, The limiting part is located between the sound-generating part and the webbing outlet guide.

4. The seat structure according to claim 1 or 3, characterized in that, The seat also includes a headrest disposed on the seat back. The speaker and the webbing outlet guide are positioned on at least one side of the headrest in the width direction relative to the center, and The limiting portion is located in the width direction at a position farther from the center of the headrest than the center of the sound-emitting portion.

5. The seat structure according to any one of claims 1 to 3, characterized in that, The limiting component is flexible and includes: The base extends forward and upward along the surface of the seat back; and The extension portion extends outward from the upper end of the base relative to the center portion of the sound-emitting portion in the width direction, and The limiting portion is formed by the end of the base corresponding to the extension portion.

6. The seat structure according to any one of claims 1 to 3, characterized in that, The seat also includes a skin component that covers the seat back to form the surface, and a speaker grille that covers the speaker from the front of the skin component. The restrictive component has a suture portion that is sewn onto the epidermal component, and The stitching site is located on the skin component at the part covered by the speaker grille.

7. The seat structure according to claim 6, characterized in that, The limiting member has a flange extending along the skin member, and The suture portion is disposed on the flange portion.

8. The seat structure according to claim 6, characterized in that, The skin component has an opening located at a position opposite to the sound-emitting part. The seat also includes a reinforcing member located around the periphery of the opening and fixed to the surface component, and The limiting component and the reinforcing component are sewn together onto the skin component.

9. The seat structure according to claim 6, characterized in that, The seat also includes an interior trim component fixed to the seat back and disposed on the inner side of the seat back, relative to the outer skin component. The stitching is located between the speaker grille and the interior trim component.

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