Anchor cover

Abstract

To provide an anchor cover which hardly generates a whistling phenomenon.SOLUTION: An anchor cover 5 is attached to a fitting hole 4B of a back lining board 4 which is hinge-coupled with a back lining part 2A of a seat back 2 to be a cover covering a tether anchor 2C arranged at the back lining part 2A. The anchor cover 5 includes: an inner plate part 5A which is formed to be an opposing face of the back lining part 2A when the back lining board 4 is folded into the back lining part 2A; and an outer plate part 5B which is formed to be an outside face when the back lining board 4 is folded into the back lining part 2A. The anchor cover 5 also includes: a hollow part 5C which forms a cave arranged between the outer plate part 5B and the inner plate part 5A to be opened toward a hole inner peripheral surface of the fitting hole 4B; and an expansion hole 5E which is formed in the inner plate part 5A. The expansion hole 5E is a hole that makes an area of opening added with a first gap T1, which is a gap between the hole inner peripheral surface and the inner plate part 5A, wider than an area of opening of a second gap T2, which is a gap between the hole inner peripheral surface and the outer plate part 5B.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to an anchor cover, and more particularly to an anchor cover that covers a tether anchor provided on the rear portion of a seat back. [Background technology]

[0002] Patent Document 1 discloses an anchor cover that covers a tether anchor provided on the rear of a seat back. The anchor cover is detachably attached to a frame-shaped support member that surrounds the tether anchor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-176722 Summary of the Invention [Problem to be solved by the invention]

[0004] In the configuration described in Patent Document 1, when the anchor cover is attached to a backboard for expanding the luggage compartment that is hingedly connected to the back of the seatback, there is a risk of whistling occurring between the anchor cover and the backboard as the backboard moves. Therefore, the present invention provides an anchor cover that is less likely to cause whistling. [Means for solving the problem]

[0005] To solve the above problems, the anchor cover of the present invention employs the following means.

[0006] In other words, the first invention of the present invention is an anchor cover that is attached to an attachment hole of a back board that is hingedly connected to the back of a seat back and covers a tether anchor provided on the back, the anchor cover having an inner plate portion that forms the opposing surface to the back when the back board is folded onto the back, an outer plate portion that forms the outer surface when the back board is folded onto the back, a cavity portion that forms a cavity between the outer plate portion and the inner plate portion that opens toward the inner surface of the attachment hole, and an expansion hole formed in one of the inner plate portion and the outer plate portion, which makes the width of the opening including the gap with the inner surface of the hole of one of the inner plate portions wider than the width of the opening including the gap with the inner surface of the hole of the other.

[0007] According to the first aspect of the present invention, when the back board is folded into the back of the seat back, the air that enters the cavity through the gap between the inner plate and the inner peripheral surface of the mounting hole is easily guided to be discharged to the outside without stagnating in the cavity by the flow of air entering or exiting through the expansion hole. This makes it less likely that a whistling noise will occur due to air stagnating in the cavity.

[0008] A second aspect of the present invention is the anchor cover according to the first aspect, wherein the expansion hole is a through hole formed at an intermediate position spaced away from the one periphery toward the center.

[0009] According to the second aspect of the present invention, the air that has flowed into the hollow portion can be easily discharged to the outside by the air flow that enters or exits through the expansion holes located further inward from the periphery.

[0010] A third aspect of the present invention is the anchor cover according to the first or second aspect, wherein the one of the two plates where the expansion hole is formed is the inner plate portion.

[0011] According to the third aspect of the present invention, when the back board is folded into the back of the seat back, the expansion holes are hidden inside and not exposed to the outside, thereby suppressing the occurrence of whistling without damaging the appearance of the anchor cover.

[0012] A fourth aspect of the present invention is the anchor cover according to the first or second aspect, wherein the expansion hole extends in the shape of an elongated hole along the one circumferential edge.

[0013] According to the fourth aspect of the present invention, the occurrence of whistling can be suppressed over a wide area around the anchor cover without widening the expansion hole. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a perspective view of a seat to which an anchor cover according to a first embodiment is applied. [Figure 2] This is a perspective view showing the state in which the luggage compartment is expanded by inverting the back board. [Figure 3] FIG. 2 is an enlarged plan view of part III in FIG. [Figure 4] This is an exploded oblique view of the anchor cover removed from the back board. [Figure 5] FIG. 5 is a perspective view of the anchor cover of FIG. 4 as viewed from the inner plate side. [Figure 6] FIG. 2 is a front view of the anchor cover as seen from the inner surface side. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 3. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 3. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0016] First Embodiment (Schematic configuration of anchor cover 5) First, the configuration of the anchor cover 5 according to the first embodiment of the present invention will be described with reference to Figures 1 to 8. In the following description, when directions such as front, back, up, down, left, and right are indicated, they refer to the directions shown in each figure. The directions shown in each figure are based on a state in which a seat back 2, which will be described later, is tilted forward.

[0017] Furthermore, when a direction such as the "sheet width direction" is indicated with the word "sheet," it refers to the respective direction based on the sheet 1 described below. Furthermore, in the following description, when a specific reference drawing is not shown or when there is no reference symbol corresponding to the reference drawing, any of Figures 1 to 8 will be referred to as appropriate.

[0018] As shown in Fig. 1, the anchor cover 5 according to this embodiment is configured as a resin cover that covers a tether anchor 2C provided on the rear surface 2A of a seat back 2 of an automobile seat 1. The seat 1 has the seat back 2 that serves as a backrest for a seated occupant, and a seat cushion 3 that serves as a seating portion.

[0019] The seat back 2 is connected to the seat cushion 3 via a recliner (not shown) so that the backrest angle can be adjusted. As a result, when the seat back 2 is not in use, it can be folded forward onto the top of the seat cushion 3 to expand the luggage compartment at the rear.

[0020] A flat resin back board 4 is hingedly connected to the back portion 2A of the seat back 2. The back board 4 is rotatably connected to the back portion 2A of the seat back 2 via a rotation hinge 4A extending in the seat width direction.

[0021] The rotating hinge 4A is disposed at a position higher (forward in the figure) than the center in the height direction of the seat back 2. The back board 4 is configured to be foldable so as to extend downward (rearward in the figure) along the back part 2A of the seat back 2 with the connecting part with the rotating hinge 4A as the base end.

[0022] 2, when the seat back 2 is folded onto the top of the seat cushion 3, the back board 4 is turned forward about the rotation hinge 4A, and is deployed so that it projects flush forward from the back part 2A of the seat back 2. As a result, the back board 4, together with the back part 2A of the seat back 2, forms the luggage compartment floor.

[0023] The back board 4 is folded back from the unfolded position onto the back part 2A of the seat back 2, so that it is returned to a state where it is overlapped with the back part 2A of the seat back 2, as shown in Fig. 1. The back board 4 is designed to maintain its overlapping state with the back part 2A of the seat back 2 even when the seat back 2 is raised rearward from the seat cushion 3.

[0024] This is because the rotating hinge 4A that supports the back board 4 is a so-called torque hinge, so that the back board 4 can maintain its overlapping state with the back part 2A of the seat back 2 against the force of gravity even when the seat back 2 is tilted backward.

[0025] As shown in Fig. 3, the back board 4 covers the back side of the tether anchor 2C provided on the back part 2A of the seat back 2. The tether anchor 2C is configured as an ISOFIX-compatible anchor that serves as a belt fixing part for fixing a child seat (not shown).

[0026] As shown in Fig. 4, the tether anchor 2C is provided inside a rectangular recess 2B formed in the back portion 2A of the seat back 2. A portion of the back board 4 that covers the tether anchor 2C is configured by an anchor cover 5 that can be removed from the back board 4.

[0027] When the anchor cover 5 is removed from the back board 4, the tether anchor 2C is exposed to the outside through the mounting hole 4B where it was attached. This allows the hook of a tether belt extending from a child seat (not shown) to be fixed to the tether anchor 2C.

[0028] The anchor cover 5 is fitted from the outside into the mounting hole 4B, which penetrates a vertically long rectangular hole formed in the back board 4, and is mounted so that both the front and back surfaces are flush with the back board 4. When the back board 4 is folded onto the back part 2A of the seat back 2 while the anchor cover 5 is mounted on the back board 4, wind enters the narrow gap between the anchor cover 5 and the inner peripheral surface of the mounting hole 4B as the anchor cover 5 is mounted on the back board 4.

[0029] If wind gets into such a narrow gap, there is a concern that it may cause a whistling noise depending on how well the wind passes through. Therefore, the anchor cover 5 is designed with a structure that can smoothly expel any wind that gets inside to the outside, thereby preventing the occurrence of this whistling noise.

[0030] The following describes in detail the specific configuration of the anchor cover 5. The anchor cover 5 is formed in the shape of a vertically long rectangular plate that can be attached to the attachment hole 4B of the back board 4 so that no apparent gap is formed.

[0031] As shown in Figures 4 and 5, the anchor cover 5 has a double-plate structure with an inner plate portion 5A forming the inner surface and an outer plate portion 5B forming the outer surface. The anchor cover 5 also has a partition 5D that projects between the inner plate portion 5A and the outer plate portion 5B to separate them. Here, the inner plate portion 5A corresponds to the "one side" in the present invention, and the outer plate portion 5B corresponds to the "other side" in the present invention.

[0032] 6 to 8, the partition 5D is shaped to protrude so as to separate the hollow portion 5C between the inner plate portion 5A and the outer plate portion 5B in the shape of a king (two "E" letters back to back) when viewed in the direction perpendicular to the surface. As a result, the hollow portion 5C between the inner plate portion 5A and the outer plate portion 5B of the anchor cover 5 is shaped so that it is open only in the left and right directions.

[0033] 7 and 8, when the anchor cover 5 is attached to the attachment hole 4B of the back board 4, a first gap T1, which is a gap of a substantially constant width, is formed around the entire periphery between the inner plate portion 5A and the inner circumferential surface of the attachment hole 4B. In addition, the anchor cover 5 is also configured so that a second gap T2, which is a gap of a substantially constant width, is formed around the entire periphery between the outer plate portion 5B and the inner circumferential surface of the attachment hole 4B.

[0034] The first gap T1 and the second gap T2 have approximately the same width. Therefore, the first gap T1 and the second gap T2 have approximately the same opening width. As shown in Fig. 8, the inner plate portion 5A has expanded holes 5E formed at two intermediate positions along the left and right edges thereof, which extend in the form of elongated holes along the left and right edges.

[0035] Each expansion hole 5E is formed at a middle position spaced apart from the center from the left and right edges of the inner plate portion 5A. By forming these expansion holes 5E, the anchor cover 5 is shaped so that it opens toward the back lining 2A of the seat back 2 from each expansion hole 5E in addition to the first gap T1, which is the gap between the inner plate portion 5A and the inner circumferential surface of the mounting hole 4B. The first gap T1 and each expansion hole 5E function as openings that open the cavity 5C of the anchor cover 5 toward the back lining 2A of the seat back 2.

[0036] In addition, the second gap T2, which is the gap between the outer plate portion 5B of the anchor cover 5 and the inner circumferential surface of the mounting hole 4B, also functions as an opening that opens the hollow portion 5C of the anchor cover 5 outward. Because the expansion holes 5E are formed in the inner plate portion 5A of the anchor cover 5, the combined opening width of the first gap T1 and each expansion hole 5E is wider than the opening width of the second gap T2.

[0037] Therefore, even if wind enters through the first gap T1, which is the gap between the inner plate portion 5A and the inner peripheral surface of the mounting hole 4B when the back board 4 is folded, this wind does not stagnate in the hollow portion 5C but is quickly discharged to the outside through the second gap T2. Specifically, wind enters the hollow portion 5C from each expansion hole 5E in addition to the first gap T1, forming a wind flow from the hollow portion 5C toward the second gap T2.

[0038] As a result, even if wind enters the hollow portion 5C through the first gap T1, the flow of wind entering through each expansion hole 5E tends to guide the wind that has entered the hollow portion 5C to be discharged to the outside through the second gap T2 without stagnating. This makes it possible to reduce the likelihood of whistling, which occurs when wind stagnates in the hollow portion 5C.

[0039] Since the expansion holes 5E that suppress the occurrence of such whistling are formed in the inner plate portion 5A, not in the outer plate portion 5B, when the back board 4 is folded into the back portion 2A of the seat back 2 as shown in Figure 3, the expansion holes 5E are hidden inside and are not exposed to the outside. Therefore, the occurrence of the whistling can be suppressed without impairing the appearance of the anchor cover 5.

[0040] 4, the anchor cover 5 has a first locking claw 5F protruding from its rear edge in the figure, an operation plate 5G assembled to the outer plate portion 5B so as to be slidable in the longitudinal direction (front-to-rear direction in the figure), and a second locking claw 5H protruding from the front edge of the operation plate 5G in the figure. The operation plate 5G is assembled so as to be slidable in the longitudinal direction along the outer surface (top surface in the figure) of the outer plate portion 5B.

[0041] The operation plate 5G is configured such that a spring (not shown) assembled between the operation plate 5G and the outer plate portion 5B constantly applies a biasing force in the forward direction in the figure so that the second locking claw 5H protrudes forward from the outer plate portion 5B in the figure. The anchor cover 5 is attached to the attachment hole 4B of the back board 4 in the following procedure.

[0042] 7, first, the first locking claw 5F is inserted into the first locking hole B1 formed on the corresponding inner peripheral surface of the mounting hole 4B of the back board 4. Next, using the inserted first locking claw 5F as a fulcrum, the operation plate 5G is pressed down to retract the second locking claw 5H while fitting the anchor cover 5 into the mounting hole 4B.

[0043] Thereafter, by releasing the depression of the operation plate 5G, the second locking claw 5H is inserted into the second locking hole B2 formed on the corresponding inner circumferential surface of the mounting hole 4B by the restoring force of the spring. As a result, the anchor cover 5 is held attached to the mounting hole 4B of the back board 4 by the engagement between the first locking claw 5F and the second locking claw 5H. Note that to remove the anchor cover 5 from the mounting hole 4B, simply follow the steps in reverse.

[0044] To summarize the above, the anchor cover 5 according to this embodiment has the following configuration: Note that the reference numerals in parentheses below correspond to the respective components shown in the above embodiment.

[0045] That is, the anchor cover (5) is attached to the attachment hole (4B) of the back board (4) hingedly connected to the back part (2A) of the seat back (2) and serves as a cover for covering the tether anchor (2C) provided on the back part (2A). The anchor cover (5) has an inner plate part (5A) that forms the surface facing the back part (2A) when the back board (4) is folded into the back part (2A), and an outer plate part (5B) that forms the outer surface when the back board (4) is folded into the back part (2A).

[0046] The anchor cover 5 also has a cavity 5C between the outer plate 5B and the inner plate 5A, which forms a cavity that opens toward the inner peripheral surface of the mounting hole 4B, and an expansion hole 5E formed in one 5A of the inner plate 5A and the outer plate 5B. The expansion hole 5E is a hole that makes the width of its opening, including a gap T1 with the hole inner peripheral surface of one 5A, wider than the width of its opening, including a gap T2 with the hole inner peripheral surface of the other 5B.

[0047] According to the above configuration, when the back board 4 is folded into the back part 2A of the seat back 2, the air that enters the cavity 5C through the gap T1 between the inner plate part 5A and the inner peripheral surface of the mounting hole 4B is easily guided to be discharged to the outside without stagnating in the cavity 5C by the flow of air entering or exiting through the expansion hole 5E. Therefore, it is possible to make it difficult for the whistling phenomenon that occurs due to air stagnating in the cavity 5C to occur.

[0048] In addition, the expansion hole (5E) is a through hole formed at an intermediate position away from the periphery of one of the air conditioners (5A) toward the center. With this configuration, the air flowing into the hollow portion (5C) can be easily discharged to the outside by the air flow entering or exiting through the expansion hole (5E) located further inward from the periphery.

[0049] In addition, the side (5A) on which the expansion hole (5E) is formed is the inner plate portion (5A). According to the above configuration, when the back board (4) is folded into the back portion (2A) of the seat back (2), the expansion hole (5E) is hidden inside and is not exposed to the outside. Therefore, the occurrence of whistling can be suppressed without impairing the appearance of the anchor cover (5).

[0050] In addition, the expansion hole (5E) extends in an elongated hole shape along the periphery of one of the anchor covers (5A). According to the above configuration, the occurrence of whistling can be suppressed over a wide area around the anchor cover (5) without widening the expansion hole (5E).

[0051] Other Embodiments Although one embodiment of the present invention has been described above, the present invention can be embodied in various forms other than the above embodiment.

[0052] 1. The anchor cover of the present invention may be hinged to the seat back board so that it can be attached to and detached from the mounting hole by rotating. The seat back board may be configured to extend rearward from the back of the seat back when the seat back is tilted forward, and to span between the seat back board and the luggage compartment floor.

[0053] 2. The expansion hole of the anchor cover may be formed in the outer plate rather than the inner plate. Even with this configuration, when the back panel is folded into the back of the seat back, wind that enters the cavity through the gap between the inner plate and the inner periphery of the mounting hole is more likely to be guided to the outside without stagnating in the cavity by the flow of wind exiting the expansion hole in the outer plate. This makes it less likely that whistling will occur due to wind stagnating in the cavity.

[0054] The expansion hole may be formed so as to connect with the gap between the inner peripheral surface of the hole in the inner plate portion or the outer plate portion and expand the gap. The shape of the expansion hole is not limited to a specific shape, and various hole shapes such as a round hole, a square hole, or an irregular hole can be used. [Explanation of symbols]

[0055] 1 sheet 2 seat backs 2A Back part 2B Recess 2C Tether Anchor 3 seat cushions 4 Back board 4A Rotating Hinge 4B Mounting hole B1 First locking hole B2 2nd locking hole 5 Anchor cover 5A Inner plate (one side) 5B Outer plate part (other side) 5C Cavity 5D divider 5E expansion hole 5F First locking claw 5G operation board 5H Second locking claw T1 First gap T2 Second gap

Claims

1. An anchor cover is attached to an attachment hole of a back board that is hingedly connected to the back of the seat back, and covers the tether anchor provided on the back, An inner plate portion that forms a surface facing the back portion when the back board is folded to the back portion; An outer plate portion that forms an outer surface when the back board is folded to the back portion; a cavity portion that forms a cavity between the outer plate portion and the inner plate portion and that opens toward an inner peripheral surface of the mounting hole; an expansion hole formed in one of the inner plate portion and the outer plate portion, which makes the width of the opening, including the gap with the inner surface of the hole of the one portion, wider than the width of the opening, including the gap with the inner surface of the hole of the other portion.

2. 2. The anchor cover according to claim 1, The expansion hole is a through hole formed at an intermediate position spaced from the one peripheral edge toward the center of the anchor cover.

3. The anchor cover according to claim 1 or 2, The anchor cover has an inner plate portion on one side where the expansion hole is formed.

4. The anchor cover according to claim 1 or 2, The expansion hole extends in the shape of a long hole along the one periphery of the anchor cover.

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