seat

Abstract

To provide a seat that can reasonably protect the release strap from the edge of the seat frame. [Solution] A seat S having a back frame 2 (seat frame), a release arm 2E attached to the back frame 2, and a release strap 2F connected to the release arm 2E and pulled out from the inside of the seat to the outside of the seat, wherein the seat S has a resin backboard 4 that covers the back frame 2 in a planar manner from the back side of the seat, and a partition portion 4A that extends from the backboard 4 to the front side of the seat and separates the release strap 2F from the edge portion E of the back frame 2 that extends from the periphery within the movable range of the release strap 2F.

Description

Technical Field

[0001] The present invention relates to a seat. Specifically, the present invention relates to a seat having a seat frame, a release arm attached to the seat frame, and a release strap connected to the release arm and drawn out from the inside of the seat to the outside of the seat.

Background Art

[0002] In Patent Document 1, a configuration is known in which a release strap for performing a release operation of a seat adjuster is arranged to be drawn out from the inside of the seat to the outside. In such a seat, as a configuration for protecting the release strap from the edge portion of the seat frame, a configuration in which an edge protection material as shown in Patent Document 2 is attached to the edge portion can be considered.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a configuration in which an edge protection material is attached to the edge portion of the seat frame, there is a problem that the number of parts and the mounting man - hours increase. Therefore, the present invention provides a seat capable of reasonably protecting the release strap from the edge portion of the seat frame.

Means for Solving the Problems

[0005] As means for solving the above problems, the seat of the present invention takes the following means.

[0006] In other words, the first invention of the present invention is a seat having a seat frame, a release arm attached to the seat frame, and a release strap connected to the release arm and pulled out from the inside of the seat to the outside of the seat, wherein the seat has a resin back board that covers the seat frame in a planar manner from the back side of the seat, and a partition portion that extends from the back board to the front side of the seat and separates the release strap from the edge portion of the seat frame that extends from the periphery within the movable range of the release strap.

[0007] According to the first invention, the release strap can be reasonably protected from the edge of the seat frame by a partition protruding from the resin back board.

[0008] The second invention of the present invention is a sheet in which the partition portion is a projection formed on the back board, in the first invention described above.

[0009] According to the second invention, the partition portion protecting the release strap can be formed more rationally.

[0010] The third invention of the present invention is, in the first or second invention described above, the partition portion is a sheet that extends in a plate-like shape in the length direction in which the release strap extends.

[0011] According to the third invention, the partition protects a wide range of the release strap along its length from the edge of the seat frame.

[0012] The fourth invention of the present invention is the first or second invention described above, wherein the seat frame has a side frame extending along the side surface of the seat, the edge portion has a front edge portion that extends inward from the front edge of the side frame, and a back edge portion that extends inward from the back edge of the side frame, the release strap is spaced apart from the side frame inward from the seat and is arranged to extend along the side frame at a position where the arrangement of the side frame and the front / back direction of the seat overlap, and the partition portion is a seat that extends so that the back edge portion extends beyond the front side of the seat, or so that both the back edge portion and the front edge portion extend beyond the front side of the seat.

[0013] According to the fourth invention, a configuration that protects the release strap extending along the side frame from the rear edge and / or front edge of the side frame can be realized with a simple configuration. [Brief explanation of the drawing]

[0014] [Figure 1] This is a perspective view of the sheet according to the first embodiment. [Figure 2] This is a front view of the seat. [Figure 3] This is a cross-sectional view taken along line III-III in Figure 2. [Modes for carrying out the invention]

[0015] The embodiments for carrying out the present invention will be described below with reference to the drawings.

[0016] 《First Embodiment》 (Outline of Sheet S structure) First, the configuration of the seat S according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 3. In the following description, when indicating each direction such as front and rear, up and down, etc., the respective directions shown in each figure shall be referred to. The directions shown in each figure are the directions as seen from the seated occupant of the seat S. Further, when indicating each direction with "seat" attached thereto, such as "seat width direction", etc., the respective directions based on the seat S shall be referred to.

[0017] As shown in FIG. 1, the seat S is configured as a single-seat for mounting on an automobile. The seat S includes a seat back 1 that serves as the backrest portion for the seated occupant, a seat cushion (not shown) that serves as the seating portion, and a headrest (not shown) that serves as the headrest portion.

[0018] The lower ends of both left and right sides of the seat back 1 are connected to the rear ends of both left and right sides of the seat cushion via a recliner (not shown). Thereby, the seat back 1 can freely adjust the backrest angle with respect to the seat cushion in the seat front-rear direction.

[0019] The seat back 1 is normally held in a state where its backrest angle is fixed. The seat back 1 is configured such that the fixed state of the backrest angle is released when a cloth release strap 2F pulled out from the right shoulder side is operated.

[0020] By the above release, the seat back 1 is switched to a state where the adjustment of its backrest angle can be performed. The seat back 1 is fixed to the adjusted backrest angle when the operation of the release strap 2F is released.

[0021] The seat back 1 has a back pad (not shown) made of foamed urethane that elastically supports the back of the seated occupant, and a back frame 2 made of metal that supports the back pad from the back side of the seat (the rear side in the figure). Further, the seat back 1 has a back cover 3 that covers the back pad so as to wrap it from the front side (the front side in the figure) of the seat to the back side.

[0022] In addition, the seat back 1 has a rectangular resin backboard 4 that planar-ly covers the back frame 2 from the back side of the seat. Here, the back frame 2 corresponds to the "seat frame" of the present invention. Also, the backboard 4 corresponds to the "back side board" of the present invention.

[0023] The back frame 2 has a pair of left and right side frames 2A that extend in the seat height direction along the seat side surface of the seat back 1, and an upper frame 2B that connects between the upper end portions of the respective side frames 2A. Further, the back frame 2 has a lower pipe 2C that connects between the lower portions of the respective side frames 2A.

[0024] In addition, the back frame 2 has a bracket 2D coupled to an intermediate portion in the seat width direction of the lower pipe 2C, and a release arm 2E rotatably connected to the bracket 2D. The bracket 2D is coupled to the rear surface of the lower pipe 2C and is provided so as to extend upward from the lower pipe 2C toward the seat.

[0025] The release arm 2E is rotatably connected to the bracket 2D via a rotation axis E1 that extends in the seat front-rear direction with respect to the bracket 2D. The left arm portion of the release arm 2E that extends short to the left from the rotation axis E1 is connected to an operation portion that performs a release operation of each recliner via a cable (not shown).

[0026] In addition, the lower end portion of a release strap 2F is connected to the right arm portion of the release arm 2E that extends long to the right from the rotation axis E1. The release strap 2F is connected to the right end portion of the right arm portion of the release arm 2E and extends upward from there above the seat so as to be drawn out from a draw-out port at the right shoulder of the seat back 1.

[0027] The release arm 2E is rotationally biased counterclockwise in a front view with respect to the bracket 2D by a spring (not shown) hung between the release arm 2E and the bracket 2D. Thereby, the release arm 2E is locked by abutting against the bracket 2D at an initial position that slopes downward to the right shown by the solid line in FIG. 2 at all times before being operated by the release strap 2F.

[0028] The release arm 2E is raised from its initial position to the upward-sloping operating position shown by the dashed line in Figure 2, as the release strap 2F is pulled upwards on the seat. This allows the release arm 2E to operate a cable (not shown) connected to its left arm, thereby releasing the lock on each recliner.

[0029] The portion of the release strap 2F that is pulled out from the opening on the right shoulder of the seat back 1 is sewn into a loop. This prevents the portion of the release strap 2F that is pulled out from the opening from falling into the interior of the seat back 1 due to the thickness of the loop, in the initial position before operation shown by the solid line in Figure 2. The release strap 2F is positioned so that there is a slight slack inside the seat back 1 so as not to cause tension against the release arm 2E in the above initial position.

[0030] Figure 3 shows a cross-sectional view taken along line III-III in Figure 2. For the sake of clarity, the release arm 2E is shown in this figure as being on line III-III in Figure 2. As shown in the figure, the right arm portion of the release arm 2E is formed to bend in a crank shape toward the front side of the seat (the front side shown).

[0031] The release arm 2E has a crank-shaped bend at its right arm end, to which the lower end of the release strap 2F is connected. As the release arm 2E is shaped like a crank as described above, the tip of the right arm that connects to the release strap 2F is positioned so that it aligns with the right side frame 2A in the front-to-back direction of the seat (front-to-back direction in the illustration). Consequently, the lower end of the release strap 2F that connects to the release arm 2E is also positioned so that it aligns with the right side frame 2A in the front-to-back direction of the seat (front-to-back direction in the illustration).

[0032] Each side frame 2A is a plate shape that is folded in a U-shape in plan view, opening inward in the width direction of the sheet. Specifically, each side frame 2A has an edge portion E consisting of a front edge portion A1 that extends outward from the edge on the front side (front side in the illustration) of the sheet so as to bend inward, and a back edge portion A2 that extends outward from the edge on the back side (rear side in the illustration) of the sheet so as to bend inward.

[0033] The rear edge portion A2 extends further inward in the sheet width direction than the front edge portion A1. The lower end of the release strap 2F, which connects to the release arm 2E, is positioned on the front side (front in the illustration) of the right side frame 2A than the rear edge portion A2 and on the back side (rear in the illustration) of the sheet than the front edge portion A1. As shown in Figures 1 and 2, the front edge portion A1 and the rear edge portion A2 are formed over the entire sheet height direction, extending between the connection point of each side frame 2A with the upper frame 2B and the connection point with the lower pipe 2C.

[0034] The backboard 4 is provided to cover the back frame 2 in a planar manner from the back of the seat over its entire width and height. The backboard 4 is integrally fixed to the back frame 2 by being hooked onto fixing wires (not shown) connected to various points on the back frame 2, or by being snap-fitted from the back of the seat via clips (not shown).

[0035] The backboard 4 has a partition portion 4A that protrudes vertically from its front surface (the front side in the illustration). The partition portion 4A protrudes between the release strap 2F and the right side frame 2A, functioning as a partition separating them. The partition portion 4A is formed as a protrusion (rib) molded into the backboard 4.

[0036] The partition 4A is formed to extend along the right side frame 2A in the direction of the seat height, right next to the right side frame 2A. As shown in Figure 3, the partition 4A extends beyond the back edge A2 of the right side frame 2A and the lower end connected to the release arm 2E of the release strap 2F to the front side (front side in the figure).

[0037] As shown in Figure 2, the partition 4A extends in the seat height direction to partition the release strap 2F and the right side frame 2A throughout the entire range of motion between the initial position shown by the solid line and the operating position shown by the dashed line of the release arm 2E. The partition 4A may extend further in the seat height direction than described above. Furthermore, the partition 4A may extend to a position beyond the front edge A1 of the seat (front side shown in the figure), as shown by the dashed line in Figure 3.

[0038] The partition 4A described above provides reasonable protection for the release strap 2F from the edge E of the right side frame 2A. Specifically, as shown in Figure 2, the release strap 2F is arranged to extend upward from its lower end, which is connected to the release arm 2E, to the pull-out opening at the right shoulder of the seat back 1. More specifically, the release strap 2F is arranged with its width facing the seat width direction, extending upward from the seat in an area inside the seat beyond the rear edge A2 of the right side frame 2A.

[0039] The release strap 2F, positioned in this manner, is operated so as to be pulled upwards on the seat, bringing it closest to the rear edge A2 of the right side frame 2A when the release arm 2E is in a horizontal operating position. However, the partition 4A protrudes from the backboard 4, separating the two, preventing the release strap 2F from contacting the rear edge A2 of the right side frame 2A. Therefore, it is possible to prevent the release strap 2F from contacting and damaging the rear edge A2.

[0040] Furthermore, as shown by the dashed line in Figure 3, by extending the partition portion 4A beyond the front edge portion A1 to the front side of the sheet (the front side shown), the release strap 2F can also be protected from the front edge portion A1. Therefore, even if the release strap 2F is positioned in an area close to the front edge portion A1 due to the position setting of the release arm 2E and the release strap 2F's outlet, the release strap 2F can be properly protected.

[0041] In summary, the sheet S according to this embodiment has the following configuration. The reference numerals in parentheses below correspond to the respective configurations shown in the above embodiment.

[0042] In other words, the seat (S) includes a seat frame (2), a release arm (2E) attached to the seat frame (2), and a release strap (2F) connected to the release arm (2E) and pulled out from inside the seat to outside the seat. The seat (S) also includes a resin back board (4) that covers the seat frame (2) in a planar manner from the back side of the seat, and a partition (4A) that extends from the back board (4) to the front side of the seat and separates the release strap (2F) from the edge portion (E) of the seat frame (2) that extends from the periphery into the range of motion of the release strap (2F).

[0043] According to the above configuration, the partition portion (4A) protruding from the resin back board (4) can reasonably protect the release strap (2F) from the edge portion (E) of the seat frame (2).

[0044] Furthermore, the partition portion (4A) is a projection formed on the back board (4). With the above configuration, the partition portion (4A) that protects the release strap (2F) can be formed more rationally.

[0045] Furthermore, the partition (4A) extends in a plate-like shape in the direction of the extension of the release strap (2F). With the above configuration, the partition (4A) can protect a wide area in the direction of the extension of the release strap (2F) from the edge (E) of the sheet frame (2).

[0046] Furthermore, the seat frame (2) has a side frame (2A) that extends along the side of the seat. The edge portion (E) has a front edge portion (A1) that extends inward from the front edge of the side frame (2A) on the seat side, and a back edge portion (A2) that extends inward from the back edge of the side frame (2A) on the seat side. The release strap (2F) is arranged to be spaced inward from the side frame (2A) and to extend along the side frame (2A) at a position where the arrangement of the side frame (2A) and the seat in the front-back direction overlap.

[0047] The partition portion (4A) extends so that the back edge portion (A2) extends beyond the front side of the sheet, or so that both the back edge portion (A2) and the front edge portion (A1) extend beyond the front side of the sheet. With the above configuration, a simple configuration can be realized to protect the release strap (2F) extending along the side frame (2A) from the back edge portion (A2) and / or front edge portion (A1) of the side frame (2A).

[0048] Regarding other embodiments: Although the embodiments of the present invention have been described above using one embodiment, the present invention can be implemented in various forms other than those described above.

[0049] 1. The seat of the present invention is applicable not only to automobile seats but also to seats used in other vehicles such as trains, aircraft, and ships. Furthermore, the seat is also applicable to seats used in vehicles other than automobiles. In addition, the seat may be configured as a single-seater separate seat or as a bench seat that can seat two or more people.

[0050] Furthermore, the configuration of the present invention can be applied not only to seat backs but also to seat cushions and ottomans. For example, in the case of a seat cushion, the back board is provided on the bottom surface of the seat cushion so as to cover the cushion frame from the back of the seat in a planar manner.

[0051] 2. The edge portion of the seat frame, that is, the edge portion separated from the release strap by the partition portion of the back board, is not limited to the edge portion of the side frame. For example, it may be the edge portion of the upper frame or lower frame in the back frame, or the front frame or rear frame in the cushion frame. It may also be the edge portion of wires or panel materials connected to these.

[0052] 3. The release strap only needs to be connected to the release arm and routed so as to extend from inside the seat to outside the seat, and may extend in the seat width direction as well as the seat height direction on the seat back. The release strap may also extend in the seat width direction as well as the seat front-to-back direction on the seat cushion. The release strap may be routed to extend along the edge, or to extend in a direction intersecting the edge.

[0053] 4. The partition portion may be formed on the back board, or it may be made of a separate component integrally molded with the back board. Furthermore, the partition portion may be made of a plate shape, or it may be made of one or more pin shapes. Furthermore, the partition portion may be formed on the back board as a rib, or it may be formed on the back board as a hollow projection that protrudes from the back side of the sheet to the front side of the sheet with a recess from the back side of the sheet.

[0054] 5. The release arm operated by the release strap may be operated to rotate relative to the seat frame, or it may be operated to slide. The mechanism released by the release arm may be a seat adjuster such as a recliner or ottoman angle adjustment mechanism, or a seat locking device. [Explanation of Symbols]

[0055] 1 seat back 2. Back frame (seat frame) 2A Side Frame A1 Front edge A2 Back edge 2B Upper Frame 2C Lower Pipe 2D bracket 2E Release Arm E1 pivot axis 2F Release Strap 3. Back cover 4. Backboard (back panel) 4A Partition Section S Seat E edge section

Claims

1. A seat comprising a seat frame, a release arm attached to the seat frame, and a release strap connected to the release arm and pulled out from inside the seat to outside the seat, A resin backing board that covers the seat frame from the back of the seat, A seat having a partition portion that extends from the back board to the front side of the seat and separates the release strap from the edge portion of the seat frame that extends from the periphery within the movable range of the release strap.

2. A sheet according to claim 1, The partition portion is a sheet in which a projection is formed on the back board.

3. A sheet according to claim 1 or claim 2, The partition portion is a sheet that extends in a plate-like shape in the direction of the length of the release strap.

4. A sheet according to claim 1 or claim 2, The aforementioned seat frame has side frames that extend along the sides of the seat, The edge portion has a front edge portion that extends inward from the front edge of the side frame to the inside of the seat, and a back edge portion that extends inward from the back edge of the side frame to the inside of the seat. The release strap is arranged to be separated from the side frame towards the inside of the seat, and to extend along the side frame at a position where the arrangement of the side frame and the seat in the front-back direction overlaps. A sheet in which the partition portion extends beyond the back edge portion to the front side of the sheet, or both the back edge portion and the front edge portion extend beyond the front side of the sheet.

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