JP5296443B2 - Seat belt anchor reinforcement structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat belt anchor reinforcing structure capable of lessening the behavior during operation and enhancing stability in the performance. <P>SOLUTION: The seat belt anchor reinforcing structure is configured so that an anchor plate 71 is turned by an actuator 92 to move upward an anchor pin 84, which is abutted from below to an opening edge of a notch 132 in an anchor hook 131 to heave it 131, whereby it is practicable to establish a locked condition 201 in which a turn-around part 141 is engaged with a hook engaging part 24 of a slide base 12. The unlocked condition 221 in which the turn-around part 141 of the anchor hook 131 is separated from the hook engaging part 24 of the slide base 12, can be established by turning the anchor plate 71 by the actuator 92 and separating the anchor pin 84 from the opening edge of the notch 132 in the anchor hook 131 so as to move it downward. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a seat belt anchor reinforcement structure for reinforcing a seat belt anchor.

  Conventionally, as a vehicle seat, a seat having a structure in which a seat body is rotated, moved up and down, and slid is known (see, for example, Patent Document 1).

This seat is provided with an anchor hook for transmitting input from the seat belt to the vehicle body, so that the input to the seat belt can be transmitted to the vehicle body by connecting the lifting part, rotating part and slide part. It is configured.
JP 2004-196188 A

  However, in such a seat belt anchor, the amount of behavior from when a load is input to the seat belt until the backlash, the rotating part, and the slide part are absorbed and connected is large and the input is small. Then the operation was not stable.

  Similarly, the sliding portion has a meshing position in the lock mechanism, and the performance is not stable depending on the positional relationship.

  The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a seat belt anchor reinforcement structure capable of reducing the behavior during operation and enhancing the performance stability. It is.

  In order to solve the above problems, in the seat belt anchor reinforcement structure according to claim 1 of the present invention, the seat base that supports the buckle of the seat belt is supported by the slider via the drive mechanism, and the slider can slide. In a vehicle seat in which a slide base supported on the vehicle body is fixed to a vehicle body, an anchor plate rotatably provided on the seat base and directly or indirectly connected to the buckle, and rotating the anchor plate An actuator for displacing an anchor pin provided on the anchor plate in the vertical direction; an anchor hook having a notch portion into which the anchor pin is inserted while being supported by the slider so as to be movable up and down and returning the seat base to a predetermined position; And turn the anchor hook below the hook engaging portion provided on the slide base. An wraparound portion is provided, an engagement portion that engages with the wraparound portion is set in the hook engagement portion, the anchor plate is rotated by the actuator to move the anchor pin upward, and the anchor pin is moved to the anchor The hook is configured to be able to form a locked state in which the anchor hook is pushed up by contacting the opening edge of the notch portion from below and the wraparound portion is engaged with the hook engaging portion of the slide base. The anchor plate is rotated so that the anchor pin is moved away from the opening edge portion of the notch portion of the anchor hook to move the anchor hook downward, and the wraparound portion of the anchor hook is moved to the hook of the slide base. An unlocked state separated from the engaging portion can be formed.

  That is, when the seat base supported by the slider is returned to a predetermined position via the drive mechanism, the anchor pin of the anchor plate provided on the seat base is notched to the notch portion of the anchor hook supported by the slider. Inserted.

  In this state, when the anchor plate supported by the seat base is rotated by the actuator and the anchor pin of the anchor plate is moved upward, the anchor pin of the anchor plate is moved to the opening edge of the notch portion of the anchor hook. It abuts from below and pushes up the anchor hook.

  Then, the wraparound portion provided on the anchor hook engages with the hook engaging portion of the slide base that supports the slider, and a locked state is formed.

  Thereby, a buckle into which a load from the seat belt is input, an anchor plate connected directly or indirectly to the buckle, an anchor hook with which an anchor pin of the anchor plate abuts against an opening edge of the notch, The sneak portion provided on the anchor hook is directly connected to the slide base engaged via the hook engaging portion, and the input from the buckle is transmitted to the vehicle body to which the slide base is fixed.

  On the other hand, when driving the seat base with respect to the slide base, the anchor plate is rotated by the actuator, and the anchor pin is separated from the opening edge portion of the notch portion of the anchor hook. , Move the anchor hook down. Then, an unlocked state is formed in which the wraparound portion provided on the anchor hook is separated from the hook engaging portion of the slide base.

  As a result, the anchor pin of the anchor plate provided on the seat base is separated from the opening edge portion of the notch portion of the anchor hook provided on the slider and is loosely fitted into the notch portion. It is possible to leave the department.

  At this time, since the pushed-up state of the anchor hook by the anchor pin is released, the anchor hook moves downward, and the engagement between the wraparound portion provided on the anchor hook and the hook engaging portion of the slide base is reduced. The combined state is released, and the sliding of the slider with respect to the slide base is allowed.

  Further, in the seat belt anchor reinforcement structure according to claim 2, the engaging portion is formed in a sawtooth shape having a standing surface and an inclined surface, and at the distal end portion of the wraparound portion facing the engaging portion, Even when the engagement portion is formed in a serrated shape composed of a facing surface facing the upstanding surface of the engaging portion and an extending surface extending along the inclined surface at the time of engagement, and is stopped at the lock intermediate position. Stable performance can be achieved by applying force in the locking direction.

  That is, the engaging portion provided in the hook engaging portion of the slide base is formed in a sawtooth shape having a rising surface and an inclined surface, and the tip of the wraparound portion that engages with the engaging portion The portion is formed with a serrated engaged portion including a facing surface facing the upstanding surface of the engaging portion and an extending surface extending along the inclined surface.

  For this reason, when the anchor hook is pushed up by the anchor plate, the engagement portion provided on the slide base is displaced from the engaged portion at the distal end portion of the wraparound portion facing the engagement portion. Even when the apex of the engaged portion and the apex of the engaging portion are in contact with each other, the engaging portion extending along the slope of the engaging portion The extended surface slides along the slope, and the locked state is formed in which the standing surface of the engaging portion and the facing surface of the engaged portion are opposed to each other.

  Further, even when the vehicle is stopped at the lock intermediate position, a force is applied in the lock direction, so that stable performance can be exhibited.

  As described above, in the seat belt anchor reinforcement structure of the present invention, the seat belt buckle is directly or indirectly formed by rotating the anchor plate with the actuator while the seat base is returned to the predetermined position. The connected anchor plate, the anchor hook that engages with the anchor pin of the anchor plate, and the slide base that engages with the wraparound portion of the anchor hook can be directly connected.

  Thereby, the fixing force of the seat base supporting the seat body to the slide base can be increased, the fixing strength to the vehicle body to which the slide base is fixed can be increased, and the seat belt can The impact force input via the buckle can be transmitted to the vehicle body via the slide base without delay.

  For this reason, rattling and margin allowance in the intervening mechanism part is accumulated between the slide base fixed to the vehicle body and the seat base provided with the seat belt anchor, and after the load is input to the seat belt Compared with the conventional case where there is a delay before this load is transmitted to the vehicle body, the behavior of the seat base when the load is input can be reduced, and the operation can be stabilized even with a small input. Can do.

  Further, in the seat belt anchor reinforcement structure according to claim 2, when the anchor hook is pushed up by the anchor plate, the engagement portion provided on the slide base and the wraparound portion opposed to the engagement portion are provided. Even when the engaged portion at the tip is displaced and the apex of the engaged portion is in contact with the apex of the engaging portion, as the anchor hook is moved upward, The extending surface of the engaged portion extending along the inclined surface of the engaging portion moves along the inclined surface, whereby the rising surface of the engaging portion and the engaged portion of the engaged portion are It is possible to reliably form the locked state where the facing surface is opposed.

  For this reason, the engagement between the slide base fixed to the vehicle body and the slider supported by the slide base moves up the anchor hook as compared with a case where the engagement is made of a rectangular groove and a rectangular tooth. In this case, the engaged portion of the anchor hook can be reliably engaged with the engaging portion of the slide base.

  Therefore, the behavior at the time of the operation | movement with a slide part can be made small, and performance stability can further be improved.

  And even if it is a case where it stops at a lock middle position, since force is applied to a lock direction, stable performance can be exhibited.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIGS. 1 to 7 are views showing a vehicle seat 1 provided with a seat belt anchor reinforcement structure according to the present embodiment. As shown in the conventional example, the vehicle seat 1 includes a seat body 2 as shown in FIG. It is configured to rotate toward the door opening, to move up and down while moving between the vehicle interior and the vehicle interior, and to slide in the vehicle longitudinal direction.

  As shown in FIGS. 1 and 2, the vehicle seat 1 includes a slide base 12 fixed to a vehicle body floor 11, and the slide base 12 is configured as shown in FIGS. 1 and 4. It is formed in a hat-shaped cross-sectional shape that opens upward. Side plate portions 13 extend in the front-rear direction at both ends of the slide base 12. The side plate portion 13 has inwardly extending pieces 14 extending inwardly and sidewardly extending. A lateral extension 15 is provided.

  The side extending portion 15 includes a standing portion 21 erected from a fixed point to the slide base 12, a side extending portion 22 extending sideward from the erected portion 21, and the side extending portion. The hook extending portion 23 is formed by a downward extending portion 23 that extends downward from the lower portion 22, and a folded hook engaging portion 24 that opens downward is formed.

  A slider 31 is disposed inside the both side plate portions 13, and the slider 31 is formed in a hat-shaped cross-sectional shape having a downward opening. Flange portions 32 extending from both side portions of the slider 31 are disposed below the inwardly extending pieces 14 of the side plate portion 13 provided on the slide base 12, and the flange portions 32 are It is configured to face the inwardly extending piece 14.

  Both flange portions 32 of the slider 31 (only one is shown) have a lower groove 41 bulging downward extending in the length direction, and the portion of the inwardly extending piece 14 facing the lower groove 41. The upper groove 42 bulging upward is extended in the length direction. A ball 43 is rotatably accommodated between the upper groove 42 and the lower groove 41, and a slide bearing 44 is formed to make the slider 31 movable in the front-rear direction with respect to the slide base 12. Yes.

  An arm support bracket 51 and a swivel lower 52 are fastened together on the upper surface of the slider 31, and a swivel upper is supported on the upper part of the swivel lower 52 via a rotating bearing to constitute a rotating mechanism (illustrated). (Omitted). As shown in FIGS. 1 and 2, a seat base 55 is supported on the upper part of the swivel upper via an elevating mechanism (not shown), and the seat base 55 has a seat of the seat body 2. A cushion 56 is fixed.

  Thus, the slider 31 is slidably supported on the slide base 12 fixed to the vehicle body floor 11, and the slider 31 is interposed via a driving mechanism 61 including the rotating mechanism and the lifting mechanism. The seat base 55 is supported.

  As shown in FIG. 3, a base bracket 65 is fixed to the seat base 55, and the fixed shaft 62 provided on the base bracket 65 is attached to the seat base 55 as shown in FIGS. 1 and 2. The seat belt buckle 63 is rotatably supported. The seat belt buckle 63 is configured so that a tongue provided on a seat belt (not shown) can be detachably fixed, and a load input to the seat belt is passed through the seat belt buckle 63. It is configured to be input to the fixed shaft 62.

  As shown in FIG. 3, an anchor plate 71 is rotatably supported on the fixed shaft 62, and the anchor plate 71 rotates on the seat belt buckle 63 via the fixed shaft 62. It is fixed freely.

  Here, as an example, the anchor plate 71 and the seat belt buckle 63 are indirectly fixed to the anchor plate 71 by rotatably supporting the anchor plate 71 and the seat belt buckle 63 on the fixed shaft 62. Although described below, the present invention is not limited to this, and the seat belt buckle 63 may be rotatably fixed to the seat base 55 and the anchor plate 71 may be provided on the seat base 55.

  The anchor plate 71 has an arcuate locking portion 81 formed on the upper side of the center of rotation supported by the fixed shaft 62, and one end of a coil spring 82 is locked to the locking portion 81. ing. The other end of the coil spring 52 is fixed to the seat base 55, and a rotational force is applied to the anchor plate 71 counterclockwise in FIG. An extension portion 83 extending obliquely downward is integrally formed at the distal end portion of the anchor plate 71, and an anchor pin 84 projects from the extension portion 83.

  The anchor plate 71 is provided with an arc-shaped elliptical hole 91 below the center of rotation supported by the fixed shaft 62, and the elliptical hole 91 is provided in the seat base 55. An engaging pin 95 at the tip of the operating shaft 94 extending from the rotating arm 93 of the actuator 92 is movably engaged.

  As a result, based on a signal from a control device (not shown), the drive motor 101 of the actuator 92 is operated and the operating shaft 94 is driven by the rotating arm 93, whereby the anchor plate 71 is rotated around the rotation center. It is comprised so that it can move, It is comprised so that the said anchor pin 84 provided in the said anchor plate 71 can be displaced to an up-down direction.

  At this time, when the extending portion 111 extending from the anchor plate 71 toward the proximal end comes into contact with the stopper 112 protruding from the base bracket 65, the anchor plate 71 rotates in the clockwise direction. However, normally, the position is controlled by the actuator 92 so as not to contact the stopper 112.

  On the other hand, as shown in FIG. 4, the arm support bracket 51 fixed to the slider 31 is extended sideways, and the tip of the arm support bracket 51 is directed upward. An upper bent portion 121 that is bent and a lower bent portion 122 that is bent downward are provided. An upper link arm 123 is rotatably supported by the upper bent portion 121, and a lower link arm 124 is rotatably supported by the lower bent portion 122.

  An anchor hook 131 is supported at the free ends of the link arms 123 and 124. As shown in FIG. 3, the anchor hook 131 is formed with a notch 132 that opens forward. . Accordingly, the anchor pin 84 provided on the anchor plate 71 is moved to the anchor hook 131 in a state where the seat body 2 is disposed forwardly in the vehicle interior and the seat base 55 is returned to the home position HP which is a predetermined position. In this case, the opening edge of the notch 132 is retracted upward on the upper side where the anchor pin 84 is located. A retreating portion 133 is provided.

  As shown in FIG. 4, the lower edge portion of the anchor hook 131 is bent inward, and the anchor hook 131 extends laterally from the side plate 13 of the slide base 12. A wrap-around portion 141 that wraps around to the lower side of the hook engaging portion 24 that is taken out is integrally formed.

  The wraparound portion 141 includes an inner bent portion 151 that is bent inward from the lower edge portion of the anchor plate 71 and an upper bent portion 152 that is bent upward from the inner bent portion 151. The tip of the upper bent portion 152 is configured to face the side extending portion 22 of the hook engaging portion 24.

  The laterally extending portion 22 constitutes an engaging portion 161 with which the wraparound portion 141 is engaged, and the tip of the upper bent portion 152 in the wraparound portion 141 facing the engagement portion 161 is An engaged portion 162 that engages with the engaging portion 161 is configured.

  As shown in FIG. 5, the engaging portion 161 is constituted by upper sawtooth portions 171,. Each of the upper sawtooth portions 171,... Stands upright substantially perpendicularly to the side extending portion 22 of the hook engaging portion 24, and extends from the distal end of the standing surface 172 toward the proximal side. .. And the engaging portion 161 is formed in a sawtooth shape by the upper sawtooth portions 171...

  Further, the engaged portion 162 at the distal end portion of the wraparound portion 141 facing the engaging portion 161 faces the upstanding surface 172 of the engaging portion 161 when engaged with the engaging portion 161. It is comprised by the downward sawtooth part 183 which consists of the opposing surface 181 and the extended surface 182 extended along the said slope 173, and the said to-be-engaged part 162 is the said lower sawtooth part 183, ... .. are formed in a sawtooth shape by being provided in succession.

  Accordingly, as shown in FIGS. 6 and 7 through FIGS. 3 and 4 to 5, the anchor plate 71 is rotated by the actuator 92 and the anchor pin 84 is moved upward. The anchor pin 84 is configured to abut against the opening edge of the retracted portion 133 of the notch 132 of the anchor hook 131 from below to push up the anchor hook 131. At this time, the slide base The locked state 201 in which the engaged portion 162 of the wraparound portion 141 is engaged with the engaging portion 161 formed in the 12 hook engaging portions 24 is configured.

  At this time, as shown in FIG. 6, when the upper edge of the anchor plate 71 abuts on a limit switch 211 provided on the seat base 55 and is turned on, the actuator 92 is moved to the drive motor 101. By stopping this control signal, the upward movement of the anchor hook 131 can be stopped.

  Further, as shown in FIGS. 3 and 4 through FIGS. 6 and 7 to 5, the anchor plate 71 is rotated by the actuator 92 to open the opening edge of the notch 132 of the anchor hook 131. The anchor pin 84 is separated from the anchor hook 84 so that the anchor hook 131 is moved down by its own weight, and the engaged portion 162 of the wraparound portion 141 of the anchor hook 131 is moved to the hook engaging portion of the slide base 12. An unlocked state 221 spaced from the 24 engaging portions 161 can be formed.

  In the present embodiment having the above configuration, as shown in FIGS. 3 and 4, when the seat base 55 supported by the slider 31 is returned to the predetermined home position HP via the drive mechanism 61. The anchor pin 84 of the anchor plate 71 provided on the seat base 55 is inserted into the notch 132 of the anchor hook 131 supported by the slider 31.

  In this state, as shown in FIG. 5, when the anchor plate 71 supported by the seat base 55 is rotated by the actuator 92 and the anchor pin 84 of the anchor plate 71 is moved upward, the anchor plate 71 As shown in FIGS. 6 and 7, the anchor pin 84 comes into contact with the opening edge of the notch 132 of the anchor hook 131 from below and pushes up the anchor hook 131. Then, the wraparound portion 141 provided on the anchor hook 131 engages with the hook engaging portion 24 of the slide base 12 that supports the slider 31, and the locked state 201 is formed.

  Accordingly, the seat belt buckle 63 to which a load from the seat belt is input, the anchor plate 71 directly or indirectly connected to the seat belt buckle 63, and the anchor pin 84 of the anchor plate 71 are formed on the notch 132. The seat hook buckle 63 is directly connected to the anchor hook 131 abutting on the opening edge and the slide base 12 engaged with the anchor hook 131 via the hook engaging portion 24. Is transmitted to the vehicle body floor 11 to which the slide base 12 is fixed.

  On the other hand, when the seat base 55 is driven with respect to the slide base 12, the anchor plate 71 is rotated by the actuator 92, and the anchor pin is moved from the opening edge of the notch 132 of the anchor hook 131. The anchor hook 131 is moved downward by separating 84. Then, as shown in FIGS. 3 and 4, an unlocked state 221 is formed in which the wraparound portion 141 provided on the anchor hook 131 is separated from the hook engaging portion 24 of the slide base 12.

  As a result, the anchor pin 84 of the anchor plate 71 provided on the seat base 55 is separated from the opening edge portion of the notch portion 132 of the anchor hook 131 provided on the slider 31, and is allowed to play in the notch portion 132. By fitting, it can be detached from the notch 132.

  At this time, the state in which the anchor hook 131 is pushed up by the anchor pin 84 is released, so that the anchor hook 131 moves down, and the wraparound portion 141 provided on the anchor hook 131 and the hook of the slide base 12 are moved. The engagement state with the engagement portion 24 is released, and the slide of the slider 31 with respect to the slide base 12 is allowed.

  In this way, by forming the lock state 201 in a state where the seat base 55 is returned to the home position HP which is a predetermined position, the anchor plate 71 is rotated by the actuator 92, thereby the seat belt. The anchor plate 71 to which the buckle 63 is connected directly or indirectly, the anchor hook 131 that engages with the anchor pin 84 of the anchor plate 71, and the wraparound portion 141 of the anchor hook 131 that is engaged. A state in which the slide base 12 is directly connected can be formed.

  As a result, the fixing force of the seat base 55 supporting the seat body 2 to the slide base 12 can be increased, and the fixing strength to the vehicle body floor 11 to which the slide base 12 is fixed can be increased. In addition, the impact force input from the seat belt via the seat belt buckle 63 can be transmitted to the vehicle body floor 11 via the slide base 12 without delay.

  For this reason, rattling and margins in the intervening mechanism portion are accumulated between the slide base 12 fixed to the vehicle body floor 11 and the seat base 55 provided with the seat belt anchor, and the seat belt is loaded. Compared to the conventional case in which there is a delay from when the load is input until this load is transmitted to the vehicle body floor 11, the behavior of the seat base 55 when the load is input can be reduced, and the input is small. However, the operation can be stabilized.

  On the other hand, the engaging portion 161 of the hook engaging portion 24 provided on the slide base 12 is, as shown in FIG. 5, an upper sawtooth portion 171 provided with an upright surface 172 and an inclined surface 173. The end portion of the wraparound portion 141 that engages with the engaging portion 161 is opposed to the opposing surface 181 that faces the upstanding surface 172 of the engaging portion 161 when engaged. A sawtooth-like engaged portion 162 is formed by lower sawtooth portions 183,.

  For this reason, when the anchor hook 71 is pushed up by the anchor plate 71, the engagement portion 161 provided on the slide base 12 and the covered portion of the distal end portion of the wraparound portion 141 facing the engagement portion 161 are arranged. Even when the engaging portion 162 is displaced and the apex portions 301 of the engaged portion 162 are in contact with the apex portions 302 of the engaging portion 161. Rotational force for rotating the anchor plate 71 counterclockwise is applied by the coil spring 52, and this rotational force can be applied in the locking direction.

  Accordingly, the extending surface 182 of the engaged portion 162 extending along the inclined surface 173 of the engaging portion 161 can be slid along the inclined surface 173. Thus, the locked state 201 in which the upright surface 172 and the opposed surface 181 of the engaged portion 162 are opposed to each other can be reliably formed.

  Here, in a normal state, the engaging portion 161 and the engaged portion 162 may be stopped in the middle of the previous stage of engagement, and can be reliably locked by any input. be able to.

  For this reason, compared with the case where the engagement between the slide base 12 fixed to the vehicle body floor 11 and the slider 31 supported by the slide base 12 is configured by engagement of a rectangular groove and a rectangular tooth, When the anchor hook 131 is moved up, the engaged portion 162 of the anchor hook 131 and the engaging portion 161 of the slide base 12 can be reliably engaged.

  Therefore, the behavior at the time of the operation | movement with a slide part can be made small, and performance stability can further be improved.

It is a perspective view which shows one embodiment of this invention. It is a side view which shows the same embodiment. It is explanatory drawing which shows the principal part which shows the embodiment. It is explanatory drawing which shows the principal part which shows the embodiment. It is explanatory drawing which shows the operation | movement following FIG. It is explanatory drawing which shows the operation | movement following FIG. It is explanatory drawing which shows operation | movement of the principal part of the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle seat 2 Seat main body 11 Car body floor 12 Seat base 24 Hook engaging part 31 Slider 55 Seat base 61 Drive mechanism 63 Seat belt buckle 71 Anchor plate 84 Anchor pin 92 Actuator 101 Drive motor 131 Anchor hook 132 Notch part 141 Circulation part 161 engaging portion 162 engaged portion 172 standing surface 173 inclined surface 181 facing surface 182 extending surface 201 locked state 221 unlocked state HP home position

Claims (2)

In a vehicle seat in which a seat base that supports a buckle of a seat belt is supported by a slider via a drive mechanism, and a slide base that slidably supports the slider is fixed to a vehicle body.
An anchor plate rotatably provided on the seat base and directly or indirectly connected to the buckle;
An actuator for rotating the anchor plate to displace the anchor pin provided on the anchor plate in the vertical direction;
An anchor hook having a notch portion into which the anchor pin is inserted in a state in which the seat base is returned to a predetermined position and supported by the slider in a vertically movable manner;
The anchor hook is provided with a wraparound portion that wraps around below the hook engagement portion provided on the slide base, and an engagement portion that engages with the wraparound portion is set on the hook engagement portion,
The anchor plate is rotated by the actuator to move the anchor pin upward, the anchor pin is brought into contact with the opening edge of the notch portion of the anchor hook from below, the anchor hook is pushed up, and the sneak portion is slid A lock state engaged with the hook engaging portion of the base can be formed, and the anchor plate is rotated by the actuator to separate the anchor pin from the opening edge portion of the notch portion of the anchor hook. Then, the anchor hook is moved downward, and the seat belt anchor reinforcing structure is configured to be able to form an unlocked state in which the wraparound portion of the anchor hook is separated from the hook engaging portion of the slide base.   The engaging portion is formed in a sawtooth shape having an upstanding surface and an inclined surface, and is opposed to the standing surface of the engaging portion when engaged with the distal end portion of the wraparound portion facing the engaging portion. Sawtooth-shaped engaged part consisting of an opposing surface and an extending surface extending along the slope is formed, and stable performance is achieved by applying a force in the locking direction even when stopped at the locking intermediate position The seatbelt anchor reinforcement structure according to claim 1, wherein the structure is configured to be possible.

Images