JP5518691B2 - Shoulder anchor equipment - Google Patents

Description

  The present invention relates to a shoulder anchor device capable of changing a support position of a slip joint of a seat belt device.

  In the seat belt anchor device disclosed in Patent Document 1 below, a slide anchor provided to be slidable in the vertical direction with respect to the rail member is formed with a through hole penetrating in a direction facing the rail member. The locking pin is slidably penetrated in the penetration direction of the through hole. In a state where the through hole of the slide anchor and the locking hole of the rail member face each other, the leading end side of the locking pin enters the locking hole of the rail member, and the lower inner periphery of the locking hole interferes with the locking pin. The lowering of the locking pin, and in turn, the downward sliding of the slide anchor is restricted.

Japanese Laid-Open Patent Publication No. 61-282144

  By the way, the contact position of the locking pin with the inner peripheral portion of the through hole of the slide anchor is shifted in the axial direction of the pin from the contact position of the locking pin with the inner peripheral portion of the locking hole of the rail member. For this reason, when the weight of the slider is applied to the locking pin from the inner peripheral part (inner peripheral upper part) of the through hole of the slide anchor, the inner peripheral part (lower inner peripheral part) of the locking hole of the rail member in the locking pin The contact position side with the inner peripheral part (inner peripheral upper part) of a through-hole rotates downward centering on a contact position, and a locking pin tends to incline. In this way, when the locking pin is tilted and operated by pulling the knob integrated with the locking pin, the inner peripheral portion of the through hole of the slide anchor with respect to the sliding locking pin and the inner peripheral portion of the locking hole of the rail member From the viewpoint of operability, there was still room for improvement.

  An object of the present invention is to obtain a shoulder anchor device that can prevent or reduce the inclination of the stopper due to the weight of the slider being applied to the stopper in consideration of the above facts.

  In the shoulder anchor device according to the first aspect of the present invention, a slip joint that supports webbing, a slider that supports the slip joint, and a plurality of restriction holes that open toward the slider are provided along the vehicle vertical direction. The guide member is formed at predetermined intervals and the slider is slidably mounted along the vehicle vertical direction, and the guide is provided inside a through-hole penetrating the slider in the opposing direction of the slider and the guide member. It is provided so as to be movable toward and away from the member, and enters the restriction hole by moving in a direction approaching the guide member while facing the restriction hole. Abuts on the lower inner periphery of the restriction hole, and the downward movement of the vehicle is restricted by the lower inner periphery of the restriction hole. A stopper for restricting the movement of the slider to the lower side of the vehicle by receiving, and provided on the slider on the opposite side of the guide member from the inner peripheral upper part of the through hole along the through direction of the through hole, And a stopper support portion that contacts the stopper from below.

  In the shoulder anchor device according to the first aspect of the present invention, the stopper is provided inside the through hole formed in the slider, and the stopper is provided in any one of the plurality of restriction holes formed in the guide member. When a part of the restriction hole enters the restriction hole, the inner peripheral lower part of the restriction hole interferes with the lower surface of the stopper. Thereby, the movement of the stopper to the vehicle lower side is regulated.

  Thus, in a state where the movement of the stopper to the lower side of the vehicle is restricted, the inner peripheral upper part of the through hole of the slider comes into contact with the upper surface of the stopper, and the slider is supported by the stopper. As a result, the movement of the slider is restricted, and the slip joint supported by the slider is supported at a position corresponding to the restriction hole in which the stopper has entered.

  By the way, a load corresponding to at least the weight of the slider is applied to the inner peripheral upper portion of the slider. As a result, the stopper tends to rotate such that the side of the contact portion with the inner peripheral upper portion of the slider descends around the contact portion with the inner peripheral lower portion of the restriction hole.

  Here, along the through direction of the through hole of the slider, a stopper support portion is provided on the slider on the side opposite to the guide member from the upper part of the inner periphery of the through hole. Contact the stopper. Thereby, the rotation of the stopper as described above is restricted, and it is possible to prevent or effectively suppress the stopper from being inadvertently inclined due to the weight of the slider or the like.

  A shoulder anchor device according to a second aspect of the present invention is the shoulder anchor device according to the first aspect of the present invention, wherein the inner peripheral lower portion of the through hole is bent to the side opposite to the guide member by bending the inner peripheral lower portion of the through hole. Further, the stopper can be brought into contact with the stopper on the side opposite to the guide member, and the inner peripheral lower portion of the through hole is used as the stopper support portion.

  In the shoulder anchor device according to the second aspect of the present invention, the stopper support portion is formed by bending the inner peripheral lower portion of the through hole formed in the slider to the side opposite to the guide member from the inner peripheral upper portion. . For this reason, the special member for comprising a slider support part is unnecessary, and it can implement | achieve at low cost.

  As described above, in the shoulder anchor device according to the present invention, the inclination of the stopper can be prevented or reduced even when the weight of the slider is applied to the stopper.

It is a disassembled perspective view of the shoulder anchor apparatus which concerns on 1st Embodiment. It is a perspective view of the assembly state of the shoulder anchor apparatus which concerns on 1st Embodiment. It is a front view of the shoulder anchor apparatus from the vehicle width direction inner side which shows the state which assembled | attached the shoulder anchor apparatus which concerns on 1st Embodiment to a vehicle. It is side surface sectional drawing of the shoulder anchor apparatus which concerns on 1st Embodiment which shows the state which the stopper entered into the control hole. It is side surface sectional drawing of the shoulder anchor apparatus which concerns on 1st Embodiment which shows the state which the stopper pulled out from the control hole.

  Next, an embodiment of the present invention will be described with reference to FIGS. In the following description of each embodiment, the same reference numerals are given to the same parts as those in the previous embodiment, and detailed descriptions thereof are given. Omitted.

<Configuration of First Embodiment>
FIG. 1 is an exploded perspective view showing a configuration of a shoulder anchor device 10 according to the first embodiment, and FIG. 2 is a perspective view showing a state where the shoulder anchor device 10 is assembled. As shown in these drawings, the shoulder anchor device 10 mainly includes a guide rail 12 as a guide member, a slider 42, a stopper 112, and a stopper operating spring 132 as an urging means.

(Configuration of guide rail 12)
First, the configuration of the guide rail 12 will be described. The guide rail 12 is generally formed by press-molding a relatively hard metal plate material such as iron. The guide rail 12 includes a base portion 14 formed in a narrow plate shape. As shown in FIG. 3, the guide rail 12 is disposed on the vehicle interior side of the center pillar 18 so that the longitudinal direction of the base portion 14 is along the direction inclined in the front-rear direction with respect to the vertical direction of the vehicle 16. As shown in FIG. 1 and FIG. 2, circular holes 20 are formed on both ends of the base portion 14 in the longitudinal direction so as to penetrate in the thickness direction of the base portion 14. A bolt (not shown) passes through the circular hole 20, and the guide rail 12 is fastened and fixed to the center pillar 18 (see FIG. 3) by this bolt.

  Further, a plurality of lock holes 22, each serving as a restriction hole, are formed at predetermined intervals in the intermediate portion in the longitudinal direction of the base portion 14. These lock holes 22 are rectangular holes penetrating in the thickness direction of the base portion 14. A slant wall 24 extends from the end of each lock hole 22 on the upper side of the vehicle so as to be inclined outward in the vehicle width direction with respect to the downward direction of the vehicle. Further, vertical walls 26 extend from both ends in the width direction of the base portion 14 toward the interior side in the vehicle width direction, and tips of these vertical walls 26 (end portions on the opposite side to the base portion 14 of the vertical walls 26). ), A guide wall 28 extends outward in the width direction of the base portion 14.

  In the present embodiment, the base portion 14 of the guide rail 12 has been described as a thin flat plate. However, the rail body 14 is curved with a predetermined distance from one surface in the thickness direction as a center to obtain a thickness. It is good also as a structure set to the intensity | strength which can be deform | transformed with the external force more than the predetermined value from one direction.

(Configuration of slider 42)
Next, the configuration of the slider 42 will be described. The slider main body 43 includes a slider main body 43 formed by press-molding a relatively hard metal plate material such as iron as a whole. The slider main body 43 includes a rectangular flat plate-shaped base portion 44 whose thickness direction is along the vehicle width direction. Curved portions 46 are formed at both ends in the width direction of the base portion 44. The curved portion 46 is curved in a U shape outward in the vehicle width direction around an axis whose axial direction is the longitudinal direction of the base portion 44. A facing portion 48 is formed on the opposite side of the curved portion 46 from the base portion 44. The facing portion 48 has a thickness direction along the vehicle width direction, and faces the base portion 44 with an interval sufficiently larger than the plate thickness of the guide wall 28 in the guide rail 12. In a state where the slider main body 43 is attached to the guide rail 12, the facing portion 48 faces the guide wall 28 on the side opposite to the base portion 44 of the guide wall 28.

  Further, a support shaft 50 whose axial direction is along the vehicle width direction is formed on the lower end side of the vehicle interior side surface of the base portion 44. As shown in FIG. 3, a slip joint 52 is swingably supported around the support shaft 50 on the support shaft 50. As shown in FIGS. 1 and 2, a webbing take-up device constituting a seat belt device is provided below the slip joint 52, and the webbing 54 drawn upward from the spool of the webbing take-up device slips. It passes through a slit hole 56 formed in the joint 52 and is folded downward.

  Further, a through hole 62 is formed in the center of the base 44 in the width direction above the support shaft 50. The through hole 62 is a slit-like hole whose longitudinal direction runs along the width direction of the base 44 and penetrates the base 44. A stopper 112 which will be described later is disposed through the through hole 62. A stopper support 64 is formed below the through hole 62. The stopper support portion 64 is formed by curving the base portion 44 so that the lower portion of the through hole 62 in the base portion 44 protrudes inward in the vehicle width direction, and the end surface 66 of the stopper support portion 64 is At least a part of the base 44 is located on the inner side (vehicle interior side) than the surface on the vehicle interior side.

  On the other hand, a curved portion 68 is formed on the upper side of the base portion 44. The bending portion 68 is formed by bending the base portion 44 so that the lower portion of the through hole 62 in the base portion 44 protrudes inwardly in the vehicle width direction, and the end surface 70 of the bending portion 68 is at least one of the end surfaces 70 thereof. Is located on the outer side (outside of the vehicle compartment) of the base portion 44 outside the vehicle compartment, and preferably in the state where the slider main body 43 is attached to the guide rail 12 in the stopper support portion 64 most inside the vehicle compartment. The end surface 70 at the portion of the curved portion 68 that protrudes most outward in the vehicle width direction is positioned approximately at the center between the stopper support portion 64 at the portion protruding to the lower side and the lower surface of the inner peripheral portion of the lock hole 22. Thus, the shapes of the end face 70 and the stopper support portion 64 are set.

  In addition, slit holes 72 are formed on both sides in the width direction of the base portion 44 with the through hole 62 interposed therebetween. These slit holes 72 penetrate in the thickness direction of the base portion 44 and open at the upper end portion of the base portion 44, and a vertical wall portion 92 of a shoe 82 described later is inserted into the slit hole 72 from above. .

  On the other hand, the slider 42 includes a shoe 82 that constitutes the slider 42 together with the slider body 43. The shoe 82 is entirely formed of a hard synthetic resin material. The shoe 82 includes a rectangular flat plate-like base portion 84 whose thickness direction is along the vehicle width direction. The base 84 is located outside the base 44 in the vehicle width direction with the shoe 82 mounted on the slider body 43. Curved portions 86 are formed at both ends in the width direction of the base portion 84. The curved portions 86 are curved in a U-shape around the axis with the longitudinal direction of the base portion 84 as the axial direction, and these curved portions 86 are located inside the curved portion 46 in the slider main body 43.

  A facing portion 88 is formed on the opposite side of the curved portion 86 from the base portion 84. The facing portion 88 has a thickness direction along the vehicle width direction, and is spaced from the base portion 84 at a distance substantially the same as the thickness of the guide wall 28 in the guide rail 12 or slightly larger than the thickness of the guide wall 28. Opposite. In a state where the slider main body 43 is attached to the guide rail 12, the guide wall 28 is sandwiched between the base portion 84 and the facing portion 88, so that the slider main body 43 is positioned relative to the guide rail 12 in the thickness direction of the guide wall 28 (that is, , Relative displacement in the vehicle width direction) can be regulated.

  A through hole 90 is formed in the base portion 84. The through hole 90 is a hole penetrating in the thickness direction of the base portion 84. The inner peripheral lower portion of the through hole 90 is formed in a flat shape, and is positioned slightly below the end surface 66 of the stopper support portion 64 when the shoe 82 is mounted on the slider body 43. A sliding contact portion 91 extends from the base portion 84 toward the outside in the vehicle width direction (on the guide rail 12 side) from the vicinity of the lower inner periphery of the through hole 90. The upper surface of the sliding contact portion 91 is flush with the inner peripheral lower portion of the through hole 90, and the lower end portion of the lock hole contacting portion 114 of the stopper 112 described later is in sliding contact. On the other hand, the inner periphery upper part of the through-hole 90 is made into the concave shape curved with the predetermined curvature so that it may open toward the downward direction, and the curved part 68 can penetrate the through-hole 90. FIG.

  Further, vertical wall portions 92 are formed on both sides of the base portion 84 across the through hole 90 in the width direction. These vertical wall portions 92 are formed in a plate shape whose thickness direction is along the width direction of the base portion 84, and the interval between one vertical wall portion 92 and the other vertical wall portion 92 is the one slit hole described above. When the shoe 82 is attached to the slider body 43, these vertical wall portions 92 are inserted into the slit hole 72 from above.

  A spring mounting portion 94 is formed above the vertical wall portions 92. The spring mounting portion 94 includes an upper wall portion 96. The upper wall portion 96 is formed in a plate shape whose longitudinal direction is along the width direction of the base portion 84 and whose width direction is along the thickness direction of the base portion 84, and one end in the width direction (an end portion on the outer side in the vehicle width direction) is formed. It is connected to the upper end of the base 84 in the longitudinal direction. Spring attachment walls 98 are formed at both longitudinal ends of the upper wall portion 96.

  The spring mounting wall 98 is formed in a plate shape whose longitudinal direction is along the thickness direction of the base portion 84 and whose width direction is along the longitudinal direction of the base portion 84, and the upper end portion in the width direction of each spring mounting wall 98 is the spring mounting portion. The lower end of the spring mounting wall 98 in the width direction is connected to the upper end of the corresponding vertical wall 92. Further, one end of each spring mounting wall 98 in the longitudinal direction (end on the outer side in the vehicle width direction) is connected to the base portion 84. These spring mounting walls 98 are formed with recesses 100.

  These recesses 100 are opened outward in the width direction of the base 84, and are also opened at the inner end of the spring mounting wall 98 in the vehicle width direction. A spring locking hole 102 is formed at the bottom of these recesses 100. These spring locking holes 102 are formed so as to penetrate the bottom portion of the spring mounting wall 98 in the thickness direction, and the other spring locking hole 102 is coaxial with one spring locking hole 102. Thus, the formation position of the spring locking hole 102 is set.

(Configuration of stopper 112)
Next, the configuration of the stopper 112 will be described. The stopper 112 is formed in a flat plate shape in which the longitudinal direction is along the thickness direction of the base portion 84 and the width direction is along the width direction of the base portion 84 by press-molding a relatively hard metal plate material such as iron. A lock hole abutting portion 114 is formed on the front end side in the longitudinal direction of the stopper 112 (the end portion on the outer side in the vehicle width direction). The lock hole abutting portion 114 has a top surface inclined toward the distal end side of the lock hole abutting portion 114 on the tip side with respect to the intermediate portion in the protruding direction from the stopper 112, and is locked in the locked state in the shoulder anchor device 10. The hole contact portion 114 enters the inside of the lock hole 22.

  Further, a sliding contact protrusion 116 is formed on the lower surface in the thickness direction of the stopper 112 on the tip end side of the stopper 112. The sliding contact projection 116 contacts the upper surface of the sliding contact portion 91 in a state where the thickness direction lower surface of the stopper 112 is in contact with the end surface 66 of the stopper support portion 64, and the lock hole 22 into which the lock hole contact portion 114 enters. It faces the base portion 14 on the lower side.

  On the other hand, a pair of spring locking portions 118 are formed on the base end side in the longitudinal direction of the stopper 112. The spring latching portion 118 penetrates in the thickness direction of the stopper 112 and is a notch opened at the end in the width direction of the stopper 112. For this reason, at the portion where the spring latching portion 118 is formed, the stopper 112 is formed. Are narrower than other portions of the stopper 112.

  Although the stopper 112 is formed in a flat plate shape in the present embodiment, the overall shape of the stopper 112 is not limited to a plate shape, and the longitudinal direction is along the thickness direction of the base portion 84. Alternatively, the cross-sectional shape cut in a block shape or a longitudinal direction along the thickness direction of the base 84 and orthogonal to the longitudinal direction may be a circle, an ellipse, or a substantially round bar shape of an oval shape. .

(Configuration of stopper operating spring 132)
Next, the configuration of the stopper operation spring 132 will be described. The stopper operating spring 132 is formed by molding a wire-like member having elasticity as a whole. The stopper operating spring 132 includes a pair of coil portions 134. These coil portions 134 are formed in a coil shape, and the axial direction is along the width direction of the base portion 84 when the shape is regarded as a cylindrical shape. These coil portions 134 are formed so as to be symmetrically opposed with respect to the width direction central portion of the base portion 44 and the base portion 84. Further, the base ends of both coil portions 134 will be described as the end portions of the coil portion 134 on the outer side in the width direction of the base portion 84, and the tip ends of both coil portions 134 will be described as the end portions on the inner side in the width direction of the base portion 84 (that is, The direction from the proximal end to the distal end is reversed between one coil portion 134 and the other coil portion 134).

  A shoe side locking portion 136 is formed continuously from the base end portion of the coil portion 134. The shoe side locking portion 136 extends in a rod shape from the base end portion of the coil portion 134 to the outside in the vehicle width direction, and the tip thereof (the end portion on the outer side of the shoe side locking portion 136 in the vehicle width direction, Further, an end portion of the shoe side locking portion 136 opposite to the coil portion 134 is bent in a hook shape inward in the width direction of the base portion 84. The tip of the shoe side locking portion 136 bent in a hook shape is inserted into a spring locking hole 102 formed in the bottom of the recess 100.

  On the other hand, a stopper side locking portion 138 is formed between the two coil portions 134. The stopper side locking portion 138 includes a connecting portion 140 whose longitudinal direction is along the width direction of the base portion 84. From both ends in the longitudinal direction of the connecting portion 140, rod-like portions 142 extending in a direction in which the longitudinal direction is inclined inward in the vehicle width direction from the connecting portion with the connecting portion 140 to the vehicle upper side. One rod-like portion 142 is connected to the tip of one coil portion 134 through the inside of one spring locking portion 118 formed on the stopper 112, and the other rod-like portion 142 is connected to the other end formed on the stopper 112. It passes through the inside of the spring locking portion 118 and is connected to the tip of the other coil portion 134. In the stopper operating spring 132, the connecting portion 140 is in pressure contact with the base portion 44 with the tip of the shoe side locking portion 136 inserted into the spring locking hole 102.

<Operation and Effect of First Embodiment>
Next, the operation and effect of the present embodiment will be described.

  In the shoulder anchor device 10, as shown in FIG. 4, particularly in a state in which no external force is applied to the coil portion 134, the connecting portion 140 side is more than the end portion on the coil portion 134 side of the rod-like portion 142. The inside of 118 is passed. The rod-shaped portion 142 that has passed through the spring locking portion 118 interferes with the upper edge and the lower edge of the spring locking portion 118, so that the stopper 112 slides along the vehicle width direction. It is regulated.

  In this state, the lock hole contact portion 114 of the stopper 112 can enter the lock hole 22 formed in the guide rail 12, and the lock hole contact portion 114 that enters the lock hole 22 is the inner peripheral portion of the lock hole 22. The stopper 112 is restricted from moving downward by contacting the lower part of the stopper 112. When the downward movement of the stopper 112 is restricted in this way, the end surface 70 of the curved portion 68 is supported on the upper surface in the thickness direction of the stopper 112, thereby restricting the movement of the slider 42.

  Next, in this state, when the coil part 134 is pressed downward against the urging force of the stopper operating spring 132 to displace the coil part 134 downward, the connecting part 140 of the stopper side locking part 138 is moved below the base part 44. To slide. Thereby, the passage position of the spring locking part 118 in the rod-like part 142 moves to the coil part 134 side.

  Here, since the rod-like portion 142 is inclined so as to be gradually displaced inward in the vehicle width direction toward the coil portion 134 side, the passing position of the spring locking portion 118 in the rod-like portion 142 is as the coil portion 134 is lowered. Gradually away from the base portion 44, the rod-like portion 142 pulls the inner peripheral edge of the spring locking portion 118 in the stopper 112 inward in the vehicle width direction. As a result, when the stopper 112 moves inward in the vehicle width direction, the lock hole contact portion 114 comes out of the lock hole 22 as shown in FIG. As described above, when the lock hole contact portion 114 comes out of the lock hole 22, the lowering restriction of the stopper 112 is canceled, and the slider 42 can be moved up and down while guiding the slider 42 to the guide wall 28 of the guide rail 12.

  In the state where the position of the slip joint 52 supported by the support shaft 50 is moved to a desired height, the downward pressing force applied to the coil part 134 is eliminated. In this state, if the stopper 112 is opposed to the lock hole 22, the rod-like portion 142 presses the edge of the spring engaging portion 118 outwardly in the vehicle width direction by the biasing force of the stopper operating spring 132, and FIG. As shown, the lock hole contact portion 114 of the stopper 112 enters the lock hole 22.

  If the stopper 112 is not opposed to the lock hole 22 in the state where the downward pressing force is applied to the coil part 134, the rod-shaped part 142 of the lock hole contact part 114 is pressed by the biasing force of the stopper operating spring 132 described above. The tip is brought into pressure contact with the base 14 of the guide rail 12. In this state, when the slider 42 is raised or lowered and the stopper 112 is opposed to the lock hole 22 closest to the upper side or the lower side with respect to the desired height (position), the stopper is pressed by the biasing force of the stopper operating spring 132. The lock hole contact portion 114 of 112 enters the lock hole 22 (see FIG. 4).

  In this way, the coil portion 134 of the stopper operating spring 132 is pressed downward so that the lock hole abutting portion 114 of the stopper 112 is pulled out of the lock hole 22, and the slider 42 is guided to the guide rail 12 and appropriately moved up and down. The height of the slip joint 52 can be adjusted by releasing the pressure on the coil portion 134 at or near the desired height and causing the lock hole contact portion 114 of the stopper 112 to enter the lock hole 22. it can.

  Here, in the shoulder anchor device 10, the portion that is pressed to cause the lock hole contact portion 114 to come out of the lock hole 22, that is, the coil portion 134 urges the stopper 112 to the inside of the lock hole 22. This is a part of the stopper operating spring 132. In conjunction with the pressing operation of the coil portion 134, the lock 112 is engaged with the stopper 112 to cause the lock hole contact portion 114 to come out of the lock hole 22, or the stopper 112 is pressed and locked by the biasing force of the stopper operation spring 132. A portion where the hole contact portion 114 is inserted into the lock hole 22 side, that is, a rod-shaped portion 142 is also a part of the stopper operating spring 132.

  For this reason, the shoulder anchor device 10 has a configuration for urging the stopper 112 toward the lock hole 22, a configuration for pressing the lock hole abutment portion 114 from the lock hole 22, and a lock hole contact. The structure for allowing the contact portion 114 to come out of the lock hole 22 or for pressing the stopper 112 with the urging force of the stopper operating spring 132 to insert the lock hole contact portion 114 into the lock hole 22 side is constituted by one part. And cost can be effectively reduced.

  Moreover, in spite of the fact that these various parts are made up of a single component, the coil spring is structurally bent as appropriate to form the shoe side locking portion 136 and the stopper side locking portion 138. In this sense, the cost can be effectively reduced.

  On the other hand, in a state where the lock hole abutting portion 114 of the stopper 112 enters the lock hole 22 and the lowering of the slider 42 is restricted, the end surface 70 of the curved portion 68 covers the upper surface in the thickness direction of the stopper 112 due to the weight of the slider 42 or the like. Press down. The position at which the end surface 70 of the curved portion 68 presses the stopper 112 is spaced inward in the vehicle width direction from the contact position between the lower surface in the thickness direction of the stopper 112 and the lower inner periphery of the lock hole 22. The contact position between the end surface 70 of the curved portion 68 and the stopper 112 tends to rotate downward about the contact position between the lower surface in the thickness direction of the stopper 112 and the lower inner periphery of the lock hole 22.

  However, in the shoulder anchor device 10, the stopper is located on the inner side in the vehicle width direction than the contact position between the end surface 70 of the curved portion 68 and the stopper 112 (that is, through the contact position between the end surface 70 of the curved portion 68 and the stopper 112. The end surface 66 of the stopper support portion 64 is in contact with the lower surface of the stopper 112 from below at the opposite side of the contact position between the lower surface in the thickness direction of 112 and the lower inner peripheral portion of the lock hole 22.

  Therefore, as described above, when the stopper 112 tries to rotate, the end surface 66 of the stopper support portion 64 interferes with the lower surface of the stopper 112, and the stopper 112 restricts the rotation as described above. Thereby, the inclination of the stopper 112 due to the weight of the slider 42 acting on the stopper 112 can be prevented or suppressed.

10 Shoulder anchor device 12 Guide rail (guide member)
16 Vehicle 22 Lock hole (Regulation hole)
42 Slider 52 Slip joint 54 Webbing 64 Stopper support

Claims (2)

A slip joint that supports webbing;
A slider that supports the slip joint;
A plurality of restricting holes opened toward the slider are formed at predetermined intervals along the vehicle vertical direction, and the guide member is slidably mounted along the vehicle vertical direction;
The slider and the guide member are provided so as to be movable toward and away from the guide member inside a through hole penetrating the slider in a facing direction of the slider, and in the state facing the restriction hole, the guide member It moves into the restriction hole by moving in the approaching direction, and in the state of entering the restriction hole, the lower surface is in contact with the lower inner periphery of the restriction hole, and the downward movement of the vehicle is restricted by the lower inner periphery of the restriction hole. And a stopper for restricting the movement of the slider to the lower side of the vehicle by receiving the movement restriction,
A stopper support portion provided on the slider on the opposite side of the guide member from the inner peripheral upper portion of the through hole along the through direction of the through hole, and coming into contact with the stopper from below;
A shoulder anchor device comprising:   Bending the inner peripheral lower part of the through hole to the side opposite to the guide member so as to be able to contact the stopper on the opposite side of the guide member from the inner peripheral upper part of the through hole. The shoulder anchor device according to claim 1, wherein the stopper support portion is used.

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