JP2016107774A - Through anchor device and seat belt device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a through anchor device which includes a simple anchor cover, which is attachable with high accuracy, and enables improvement of the impact absorption efficiency and the appearance of a vehicle cabin.SOLUTION: A through anchor device 100 includes: an anchor body part 122; and an anchor cover 124. The anchor body part 122 has: a through hole 118; and a first bolt hole 132 for a bolt 120 fastened to a wall part. The anchor cover 124 includes: a base part 130 attached to the vehicle outer side of the anchor body part 122; and a design part 126 covering the bolt 120 of the anchor body part 122. The base part 130 has: a first hook part 136 which holds the anchor body part 122; and a second bolt hole 134 for the bolt 120. The design part 126 has a hemispherical shape, is connected with the base part 130 by a hinge part 128, and covers a head part 121 of the bolt 120 from the vehicle outer side. A second hook part 150 which holds the anchor body part 122 is provided at the design part 126.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a through anchor device that supports webbing and a seat belt device including the through anchor device.

  The through anchor device is a device that supports the webbing of the seat belt device, and is generally installed on a wall portion in the passenger compartment above the shoulder of the passenger. Normally, the base side of the webbing is wound around a retractor installed near the floor panel, and the tip side is fixed to an anchor plate installed on the lower floor panel through a through anchor device. The webbing folded downward from the through anchor device is provided with a tongue plate, and the occupant wears the seat belt device by inserting the tongue plate into a buckle beside the seat.

  The through anchor device is attached to the wall mainly using bolts. In recent years, there is a case where an anchor cover is provided in the through anchor device in order to support the posture of the through anchor device with respect to the bolt and to improve the aesthetic appearance. For example, an anchor cover (protective cover 10) described in Patent Document 1 hinges a housing 11 that covers the inside of the anchor main body (D ring 50) and a closure wall 32 that is attached to the outside of the D ring 50. It becomes the composition which was connected with. The D ring 50 is supported by the protective cover 10 in the posture with respect to the anchor bolt 38, and when the D ring 50 receives an impact, the impact is absorbed by the protective cover 10.

JP-A-11-321553

  However, in the protective cover 10 of Patent Document 1, the closure wall 32 is attached to the D ring 50 only by passing an anchor bolt through the center opening 34, and the housing 11 only hooks the left and right lower hooks on the D ring 50. It is attached with. The protective cover 10 attached in such a structure may cause so-called rattling with respect to the D-ring 50, and may not be able to efficiently absorb the impact on the D-ring 50.

  In view of such problems, the present invention provides a through anchor device and a seat belt device that include an anchor cover that can be attached with high accuracy with a simple structure and that can improve the impact absorption efficiency and the aesthetic appearance of the passenger compartment. It is an object.

  In order to solve the above problems, a typical structure of a through anchor device according to the present invention is a first structure in which a through hole through which a strip-shaped webbing is passed and a bolt fastened to a wall portion in a vehicle compartment are passed. An anchor main body having a bolt hole and an anchor cover attached to the anchor main body, the anchor cover being provided on the vehicle exterior side of the anchor main body, and a base provided on the base for gripping the anchor main body. 1 hook portion, a second bolt hole provided in the base and through which the bolt passes, and a hemispherical shape that is connected to the base via a hinge portion, and the head portion of the anchor main body bolt is moved by the operation of the hinge portion. It has a design part that covers from the inside of the vehicle, and a second hook part that is provided in the design part and grips the anchor main body when the design part covers the head part of the bolt.

  The base portion of the anchor cover can be easily attached to the anchor main body by using the second hook portion. The bolt is passed through the second bolt hole of the base together with the first bolt hole of the anchor main body, and the anchor cover cannot be removed from the anchor main body by fastening the bolt to the wall. After the bolt is fastened to the wall portion, the design portion can be attached to the anchor main body portion by a simple operation by simply closing the hinge by using the second hook portion. According to these configurations, the anchor cover can be attached to the anchor main body with high accuracy with a simple structure, and rattling of the anchor cover can be suppressed. And it is possible to improve the aesthetics of a vehicle interior by covering up the head part of a bolt with the design part arranged in hemispherical shape.

  The anchor main body and the anchor cover are made of resin, and the anchor main body further includes a first fitting portion into which the first hook portion is fitted, and a second fitting portion into which the second hook portion is fitted. You may have. According to this configuration, the anchor main body and the anchor cover are made of resin, so that they can have a certain degree of flexibility as compared with the case of metal. Therefore, it is possible to absorb an impact at the contact portion between each hook portion and each fitting portion and suppress the backlash of the anchor cover. In particular, the anchor cover can be attached with higher accuracy by providing the fitting portions in accordance with the shapes of the hook portions.

  The anchor cover is further provided in the design portion, and when the design portion covers and conceals the head portion of the bolt, the upper and lower ribs are located on both the upper and lower sides of the head portion and are in contact with the head portion and the anchor main body portion. It may be provided and may have left and right ribs that are located on the left and right sides of the head portion when the design portion covers the head portion of the bolt and contacts the head portion and the anchor main body portion. With this configuration, even when an impact is applied to the through anchor device, the various ribs of the design portion come into contact with the head portion of the bolt and the anchor body portion, thereby absorbing the impact of the anchor body portion and its posture. Fluctuations can be suppressed.

  The anchor cover is further provided at an edge of the design portion, and extends from the edge portion to the vehicle outer side, a first edge portion that contacts the anchor main body portion from the vehicle inner side when the design portion covers the head portion of the bolt. And a step portion that contacts the anchor main body from above. With this configuration, it is possible to secure a wide contact portion of the design portion with the anchor main body, further suppress backlash of the anchor cover, and improve the impact absorption efficiency of the anchor cover with respect to the anchor main body.

  The anchor cover is further provided on the edge of the design portion, and when the design portion covers the head portion of the bolt, the second edge portion extends to the vehicle outer side than the anchor main body portion, and the design portion is provided on the base portion. And a support portion that contacts the inside of the second edge portion. By supporting the design portion at the base with this configuration, the impact absorption efficiency of the anchor body portion by the design portion can be further improved.

  In order to solve the above problems, a typical configuration of a seat belt device according to the present invention includes the above-described through anchor device. The components corresponding to the technical idea in the through anchor device and the description thereof can be applied to a seat belt device including the through anchor device. Therefore, it is possible to realize a seat belt device capable of improving the impact absorption efficiency and the aesthetic appearance of the passenger compartment.

  According to the present invention, it is possible to provide a through anchor device and a seat belt device having a simple structure, including an anchor cover that can be attached with a simple structure and high accuracy, and capable of improving the impact absorption efficiency and the aesthetic appearance of the vehicle interior. it can.

It is the figure which illustrated the outline | summary of the seatbelt apparatus and through anchor apparatus concerning embodiment of this invention. It is the figure which illustrated the through anchor apparatus of FIG. 1 independently. It is the figure which isolate | separated the anchor cover and anchor main-body part of FIG.2 (b). It is the figure which illustrated the anchor cover and anchor main-body part of FIG. 3 from the both sides of the vehicle width direction. It is the figure which mutually assembled | attached the anchor cover and anchor main-body part of FIG. It is the figure which illustrated the through anchor apparatus of FIG.5 (b) from each direction.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  FIG. 1 is a diagram illustrating an outline of a seat belt device 108 and a through anchor device 100 according to an embodiment of the present invention. As illustrated in FIG. 1, the through anchor device 100 is a device that supports the webbing 104 of the seat belt device 108. The through anchor device 100 is attached to a center pillar 116 that is a part of a wall portion in the vehicle interior. The through anchor device 100 is provided with a passage hole 118, and the webbing 104 is passed through the passage hole 118. The through anchor device 100 is attached to the center pillar 116 by a bolt 120 (see FIG. 6B), and can move so as to rotate in the vehicle front-rear direction around the bolt 120.

  The seat belt device 108 is a safety device provided in the seat 102, and restrains the occupant to the seat 102 using a belt-like webbing 104. The seat belt device 108 also includes a pretensioner (not shown) that rapidly winds up the webbing 104 in an emergency of the vehicle, an energy absorption mechanism (EA mechanism) that relaxes the rapid restraint of the webbing 104, and the like as necessary.

  The webbing 104 is wound around the retractor 106 at the base side, and the tip end side is folded downward through the upper anchor device 100 and fixed to the anchor plate 110. A tongue plate 112 is provided between the through anchor device 100 and the anchor plate 110, and when the occupant inserts the tongue plate 112 into the buckle 114, the mounting state is achieved.

  FIG. 2 is a diagram illustrating the through anchor device 100 of FIG. 1 alone. FIG. 2A is a perspective view of the through anchor device 100 as viewed obliquely from the rear side inside the vehicle. The through anchor device 100 is roughly configured to include an anchor main body 122 and an anchor cover 124. The anchor main body 122 has a horizontally long passage hole 118 and is a part that directly supports the belt-like webbing 104 (see FIG. 1). The anchor cover 124 covers and hides the bolt 120 (see FIG. 6B) for attaching the anchor main body 122 to the center pillar 116, and contributes to the improvement of aesthetics.

  The anchor cover 124 has a function of supporting the posture of the anchor main body 122. For example, the anchor body 122 may be subjected to a sudden load when the webbing 104 restrains the occupant in an emergency. In that case, the anchor main body 122 may take an unexpected posture such that the anchor main body portion 122 is twisted obliquely from the original posture attached by the bolt 120 (see FIG. 6B). In such a case, the anchor cover 124 supports the anchor main body 122 with respect to the bolt 120 and functions to suppress a change in the posture of the anchor main body 122.

  In the through anchor device 100 of this embodiment, the anchor cover 124 can be attached to the anchor main body 122 with a simple structure and with high accuracy. Hereinafter, the structures of the anchor cover 124 and the anchor main body 122 will be described in detail.

  FIG. 2B is a view in which the design portion 126 of the anchor cover 124 in FIG. The design portion 126 has a hemispherical shape and can be opened and closed by the operation of the hinge portion 128. The hinge portion 128 connects the design portion 126 and the base portion 130 attached to the back side of the anchor main body portion 122. A first bolt hole 132 is provided in the upper part of the anchor main body 122 covered with the design portion 126. A bolt 120 (see FIG. 6B) fastened to the center pillar 116 (see FIG. 1) is passed through the first bolt hole 132 from the inside of the vehicle. The design part 126 covers and conceals the head part 121 of the bolt 120 from the inside of the vehicle, and contributes to improving the aesthetic appearance of the vehicle interior.

  FIG. 3 is a view in which the anchor cover 124 and the anchor main body 122 of FIG. As illustrated in FIG. 3, the anchor cover 124 is provided with a base 130 that is attached to the outside of the anchor main body 122. At the center of the base portion 130, a second bolt hole 134 through which the bolt 120 (see FIG. 6B) is passed together with the first bolt hole 132 of the anchor main body portion 122 is provided.

  A pair of first hook portions 136 are provided on the upper left and right sides of the base portion 130. The first hook portions 136 respectively hold a pair of first fitting portions 138 provided slightly above the left and right sides of the first bolt 120 hole of the anchor main body portion 122. The first hook portion 136 grips the anchor main body portion 122, whereby the anchor cover 124 can be temporarily fixed, and the assembly operation of the through anchor device 100 to the vehicle is facilitated. Further, even after the through anchor device 100 is assembled to the vehicle, the first hook portion 136 holds the anchor main body portion 122, thereby preventing the anchor cover 124 from rattling.

  FIG. 4 is a view illustrating the anchor cover 124 and the anchor main body 122 of FIG. 3 as viewed from both sides in the vehicle width direction. FIG. 4A illustrates the anchor cover 124 and the anchor main body 122 from the inside of the vehicle. In this embodiment, synthetic resin is used for most of the materials of the anchor cover 124 and the anchor main body 122. If it is a synthetic resin, it is easy to mold, and the anchor cover 124 and the anchor main body 122 can be appropriately designed to have a strength that can withstand severe conditions such as an emergency.

  The anchor main body 122 is almost entirely covered with the resin film 140. Three small round holes are formed in the vicinity of the first bolt holes 132 in the resin film 140 covering the anchor main body 122, and a part of the insert fitting 142 inside the resin film 140 is formed from these round holes. Can be confirmed. The insert metal fitting 142 is a metal plate formed by punching, for example, and the anchor main body 122 is manufactured by molding a resin film 140 on the insert metal fitting 142. When the resin coating 140 is molded, for example, the insert fitting 142 is supported by a pin-shaped jig in the mold, and the resin is injected there. Therefore, the resin film 140 is not formed at the place where the jig was present. The three round holes described above are formed by a pin-shaped jig, and therefore the insert fitting 142 is exposed.

  The anchor main body 122 has a sliding portion 146 on the lower edge 144 of the passage hole 118. On the sliding portion 146, fine convex portions are lined up, and irregularities are formed. The sliding portion 146 is a portion that prevents jamming (a phenomenon in which the webbing 104 (see FIG. 1) is shifted to the end of the passage hole 118). Since the convex shapes are arranged in the width direction of the webbing 104, when the webbing 104 tries to move in the width direction, the convex shape interferes and the movement can be prevented. Therefore, the webbing 104 is prevented from skidding to the end in the passage hole 118, and jamming is prevented. The convex shape is provided so as to extend in the pulling direction of the webbing 104 and interferes only when the webbing 104 attempts to move in the width direction.

  The anchor cover 124 also has a structure for holding the anchor main body 122 in the design portion 126. As illustrated in FIG. 4A, a pair of second hook portions 150 are provided on the left and right sides inside the design portion 126. The second hook part 150 is a part that holds the design part 126 by gripping the anchor main body part 122.

  FIG. 4B is a view illustrating the anchor cover 124 and the anchor main body 122 of FIG. 4A from the outside of the vehicle. As illustrated in FIG. 4B, a pair of second fitting portions 152 are provided slightly above the left and right sides of the first bolt 120 hole on the vehicle outer side of the anchor main body portion 122. The 2nd fitting part 152 is a site | part which the 2nd hook part 150 (refer Fig.4 (a)) inside the design part 126 fits.

  FIG. 5 is a view in which the anchor cover 124 and the anchor main body 122 of FIG. 4 are assembled to each other. FIG. 5A illustrates the anchor cover 124 and the anchor main body 122 from the inside of the vehicle, as in FIG. As illustrated in FIG. 5A, the anchor cover 124 can be easily attached to the anchor main body 122 by using the first hook portion 136. In this state, by passing the bolt 120 (see FIG. 6B) through the first bolt hole 132 and fastening it to the center pillar 116 (see FIG. 1), the through anchor device 100 is assembled to the vehicle, and the anchor cover 124 is The anchor main body 122 cannot be removed. And if the design part 126 is closed by the operation | movement of the hinge part 128, since the circumference | surroundings of the volt | bolt 120 and the 1st bolt hole 132 become invisible from the outside, this can improve aesthetics.

  FIG. 5B is a view illustrating the design portion 126 of FIG. As illustrated in FIG. 5B, when the design portion 126 covers and conceals the head portion 121 of the bolt 120, the second hook portion 150 becomes the second fitting portion 152 of the anchor main body portion 122 (FIG. 4B). (See). Thus, the design part 126 can be attached to the anchor main body part 122 by a simple operation of closing the hinge part 128 by the second hook part 150 gripping the second fitting part 152.

  In the present embodiment, the anchor cover 124 and the anchor main body 122 are formed of a resin material. The anchor cover 124 and the anchor main body 122 can have a certain degree of flexibility by being made of resin, compared to the case of being made of metal. Therefore, the shock is absorbed at the contact portion between the first hook portion 136 and the first fitting portion 138 and the contact portion between the second hook portion 150 and the second fitting portion 152, and the anchor cover 124 is rattled. It is possible to suppress. In particular, by forming the first fitting portion 138 and the second fitting portion 152 so as to match the first hook portion 136 and the second hook portion 150, respectively, the anchor body portion 122 of the anchor cover 124 can be provided. Can be mounted with higher accuracy.

  In the present embodiment, the anchor cover 124 can efficiently absorb an impact that can be applied to the anchor main body 122 from the webbing 104 or the like. For example, as illustrated in FIG. 3, a plurality of ribs are provided inside the design portion 126 of the anchor cover 124. In addition to improving the rigidity of the design portion 126, the plurality of ribs also play a role of contacting the anchor main body portion 122 and suppressing posture fluctuation of the anchor main body portion 122.

  The plurality of ribs inside the design portion 126 are roughly divided into two and provided as upper and lower ribs 154 and left and right ribs 156. The design portion 126 is configured such that the head portion 121 is located at the center when the head portion 121 of the bolt 120 (see FIG. 6B) is covered. A plurality of the upper and lower ribs 154 are provided on the upper side and the lower side of the design portion 126 so as to extend in the vertical direction on both upper and lower sides of the head portion 121. A pair of left and right ribs 156 are provided on the left and right sides inside the design portion 126. The left and right ribs 156 extend in the horizontal direction and are provided on both the left and right sides of the head portion 121.

  FIG. 6 is a diagram illustrating the through anchor device 100 of FIG. 5B from each direction. FIG. 6A is a diagram illustrating the through anchor device 100 as viewed from the inside of the vehicle. In the state of FIG. 6A, each rib inside the design portion 126 described with reference to FIG. 3 is in contact with the anchor main body portion 122.

  FIG.6 (b) is AA sectional drawing of Fig.6 (a). FIG. 6B illustrates the upper and lower ribs 154 positioned below the head portion 121 of the bolt 120 as a representative of the plurality of upper and lower ribs 154 and left and right ribs 156 of FIG. 3. As illustrated in FIG. 6B, the upper and lower ribs 154 of the design portion 126 are in contact with the anchor main body portion 122. Since the anchor cover 124 is in contact with the anchor main body 122 and the center pillar 116, the anchor cover 124 can rotate around the bolt 120, but it can be removed from the other direction, for example, the bolt 120 toward the inside of the vehicle. Movement in the direction is disabled. Since the upper and lower ribs 154 of the anchor cover 124 are in contact with each other, the anchor main body 122 is prevented from moving other than rotating around the bolt 120. For example, even if an impact is applied to the anchor body 122 from the webbing 104 (see FIG. 1), the plurality of upper and lower ribs 154 and left and right ribs 156 (see FIG. 3) hold the anchor body 122 and absorb the impact. Thus, it is possible to suppress the posture variation of the webbing 104.

  The design portion 126 of the anchor cover 124 has a wide contact area with the anchor main body 122 in addition to the ribs. For example, as illustrated in FIG. 6B, in the state where the design portion 126 covers the head portion 121, the first edge portion 158 which is the lower edge of the design portion 126 is also the anchor main body portion along with the upper and lower ribs 154. 122 is in contact with the inside of the vehicle. As illustrated in FIG. 6A, the first edge portion 158 contacts the anchor main body portion 122 in a range extending to the lower half of the hemispherical design portion 126, and supports the anchor main body portion 122. Fluctuation is suppressed.

  The edge of the design portion 126 is in contact with the anchor main body portion 122 at a place other than the first edge portion 158. As illustrated in FIG. 2A, a stepped portion 160 is provided above the first edge portion 158. The step portion 160 extends from the first edge portion 158 to the vehicle outer side, and comes into contact with the shoulder portion 123 on the side of the first bolt hole 132 (see FIG. 2B) of the anchor main body portion 122 from above.

  FIG. 6C is a sectional view taken along line BB in FIG. As illustrated in FIG. 6C, in addition to the first edge portion 158, the stepped portion 160 comes into contact with the anchor main body portion 122 from above, thereby ensuring a wide contact portion between the design portion 126 and the anchor main body portion 122. Has been. With this configuration, the backlash of the anchor cover 124 with respect to the anchor main body 122 can be further suppressed, and the impact absorption efficiency of the anchor main body 122 by the anchor cover 124 can be improved.

  Reference is again made to FIG. A second edge 162 is provided above the stepped portion 160 in the edge of the design portion 126. The second edge portion 162 extends outward from the anchor main body portion 122 when the design portion 126 covers and conceals the head portion 121 of the bolt 120. A plurality of support portions provided on the base portion 130 are in contact with the second edge portion 162.

  As illustrated in FIG. 3, the base portion 130 includes a first support portion 164 implemented as a portion outside the first hook portion 136 as a portion that contacts the inside of the second edge portion 162 of the design portion 126, and A second support portion 166 is provided below the first hook portion 136 and extends outward as viewed from the second bolt hole 134.

  FIG.6 (d) is CC sectional drawing of Fig.6 (a). FIG. 6D illustrates the first support part 164 as a representative of the first support part 164 and the second support part 166. As illustrated in FIG. 6B, the first support portion 164 provided on the outside of the first hook portion 136 is in contact with and supports the second edge 162 of the design portion 126 from the inside. . In this way, the design portion 126 comes into contact with the anchor main body portion 122 by the upper and lower ribs 154 (see FIG. 6B), the first edge portion 158 (see FIG. 6C) and the step portion 160, and this design portion. 126 is supported by the base 130 via the first support part 164 and the second support part 166. In the base portion 130, the bolt 120 is passed through the second bolt hole 134 and, in addition, contacts the center pillar 116 (see FIG. 1). Therefore, the base portion 130 can pass the impact received by the design portion 126 from the anchor main body portion 122 to the bolt 120 and the center pillar 116. In this way, in the present embodiment, it is possible to efficiently absorb the impact of the anchor main body 122 and suppress fluctuations in the posture.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. However, the embodiments described above are preferred examples of the present invention, and other embodiments can be implemented by various methods. Can be carried out. The invention is not limited to the detailed shape, size, configuration, and the like of the components shown in the accompanying drawings unless otherwise specified in the present specification. In addition, expressions and terms used in the present specification are for the purpose of explanation, and are not limited thereto unless otherwise specified.

  Therefore, it is obvious for those skilled in the art that various changes and modifications can be conceived within the scope of the claims, and these naturally belong to the technical scope of the present invention. It is understood.

  The present invention can be used for a through anchor device that supports webbing and a seat belt device including the through anchor device.

DESCRIPTION OF SYMBOLS 100 ... Through anchor device, 102 ... Seat, 104 ... Webbing, 106 ... Retractor, 108 ... Seat belt device, 110 ... Anchor plate, 112 ... Tung plate, 114 ... Buckle, 116 ... Center pillar, 118 ... Pass-through hole, 120 ... Bolt, 121 ... head part, 122 ... anchor body part, 123 ... anchor body shoulder part, 124 ... anchor cover, 126 ... design part, 128 ... hinge part, 130 ... base part, 132 ... first bolt hole, 134 ... Second bolt hole, 136: first hook portion, 138: first fitting portion, 140: resin film, 142: insert fitting, 144: lower edge of passage hole, 146: sliding portion, 150: second hook portion , 152 ... second fitting part, 154 ... upper and lower ribs, 156 ... left and right ribs, 158 ... first edge part, 160 ... step part, 162 ... second edge part, 16 ... the first support portion, 166 ... the second support section

Claims (6)

An anchor body having a passage hole through which a belt-shaped webbing is passed, and a first bolt hole through which a bolt fastened to a wall portion in the vehicle interior is passed;
An anchor cover attached to the anchor main body,
With
The anchor cover is
A base attached to the outside of the anchor main body, and
A first hook portion provided on the base portion for gripping the anchor main body portion;
A second bolt hole provided in the base and through which the bolt is passed;
A design part that is hemispherical and connected to the base part via a hinge part, and covers the head part of the bolt of the anchor body part from the inside of the vehicle by the operation of the hinge part;
A second hook part that is provided in the design part and grips the anchor body part when the design part covers and hides the head part of the bolt;
A through anchor device characterized by comprising: The anchor main body and the anchor cover are made of resin,
The said anchor main-body part further has the 1st fitting part to which the said 1st hook part fits, and the 2nd fitting part to which the said 2nd hook part fits to Claim 1 characterized by the above-mentioned. The through anchor device as described. The anchor cover further includes
An upper and lower rib that is provided on the design portion and is positioned on both upper and lower sides of the head portion when the design portion covers and hides the head portion of the bolt; and the head portion and the anchor main body portion;
Left and right ribs that are provided on the design portion, are positioned on the left and right sides of the head portion when the design portion covers the head portion of the bolt, and are in contact with the head portion and the anchor main body portion;
The through anchor device according to claim 1, wherein the through anchor device is provided. The anchor cover further includes
A first edge that is provided at an edge of the design portion and contacts the anchor main body portion from the vehicle inner side when the design portion covers the head portion of the bolt;
A stepped portion extending from the edge to the vehicle outer side and contacting the anchor main body from above;
The through anchor device according to any one of claims 1 to 3, wherein the through anchor device is provided. The anchor cover further includes
A second edge portion provided on an edge of the design portion, the design portion covering a head portion of the bolt and extending to the vehicle outer side than the anchor main body portion;
A support portion provided on the base portion and in contact with the inside of the second edge of the design portion;
The through anchor device according to any one of claims 1 to 4, further comprising:   A seat belt device including the through anchor device according to any one of claims 1 to 5.

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