JP6310350B2 - Buckle device - Google Patents

Description

  The present invention relates to a buckle device capable of moving a buckle by a driving force of a driving means.

  There is a buckle device in which driving means such as a motor and a buckle of a seat belt device are connected by a connecting member such as a wire and the buckle is moved by a driving force of the motor (see Patent Documents 1 and 2 below as an example). In this type of buckle device, the intermediate part of the connecting member is curved by a guide member formed by sintering or casting, and the leading end side is directed upward from the intermediate part of the connecting member. However, the guide member must support a load applied from the connecting member when the buckle is pulled, for example. For this reason, when the guide member is formed by sintering or casting, the guide member is enlarged.

German Patent Application Publication No. 102006048817 JP 2010-208497 A

  In view of the above fact, an object of the present invention is to obtain a buckle device that can reduce the size of a guide member.

The buckle device according to claim 1, wherein a buckle with which a tongue is engaged, a connecting member having a longitudinal tip connected to the buckle, and a longitudinal base end of the connecting member are connected to each other by a driving force. It comprises a drive means for moving the member in the longitudinal direction to move the buckle and a bent plate material, and a longitudinal intermediate portion of the connecting member can be brought into contact with the surface on the thickness direction side. A first wall portion that is bent between the first contact surface portion to which a load is applied and the first contact surface portion and extends toward the thickness direction of the first contact surface portion, and the first wall portion. A first flange portion that bends between the first abutting surface portion and the first wall portion and extends toward the thickness direction of the first wall portion; and the first abutting surface portion and the first abutting surface portion A bent portion between the first wall portion and the first wall portion and the first furan A first guide plate bent portion is continuous in the longitudinal direction of the connecting member between the parts, are disposed on the opposite side to the first contact face portion across the coupling member, the second contact face portions The first wall portion sandwiching the connecting member, a second contact surface portion to which a load is applied from the connecting member so that the intermediate portion in the longitudinal direction of the connecting member can contact the surface on the thickness direction side of the connecting member A second wall portion that is bent on the opposite side to the second contact surface portion and extends in the thickness direction of the second contact surface portion, and the second contact surface portion of the second wall portion. A second flange portion that bends between the second wall portion and extends in the thickness direction side of the second wall portion on the opposite side, and between the second contact surface portion and the second wall portion. And a bent portion between the second wall portion and the second flange portion is continuous in the longitudinal direction of the connecting member. Is provided with a over door, a.

According to the buckle device of the first aspect , the first guide plate and the second guide plate can contact the intermediate portion in the longitudinal direction of the connecting member, and the connecting member is moved by the driving force of the driving means. when that is, the connecting member is Ru are guided by the first guide plate and the second guide plate. Here, each of the first guide plate and the second guide plate is constituted by a bent plate material, and the bent portion is continuous in the longitudinal direction of the connecting member. For this reason, each of the first guide plate and the second guide plate has a high bending rigidity with respect to the load from the connecting member even if it is formed of a plate material. Thereby, each of the first guide plate and the second guide plate can be miniaturized.

The first guide plate may include a first contact face portion is bent between the first wall portion, the first wall portion extends in the thickness direction of the first contact face portion. The bent portion between the first contact surface portion and the first wall portion is continuous in the longitudinal direction of the connecting member. For this reason, the bending rigidity of a guide member with respect to the load provided to a 1st contact surface part from a connection member can be made high. In addition, on the opposite side of the first guide plate from the first contact surface portion of the first wall portion, a first flange portion extends in the thickness direction of the first wall portion, and the first wall portion and the first wall portion It is bent between the flange. The bent portion between the first wall portion and the first flange portion is continuous in the longitudinal direction of the connecting member. For this reason, the bending rigidity of the guide member with respect to the load applied to the first contact surface portion from the connecting member can be further increased.
Further, the second guide plate has a first wall sandwiched between the second guide plate and the second abutment surface portion disposed on the opposite side of the first abutment surface portion with the coupling member between the second guide plate and the first wall. The second wall portion extending to the thickness direction side of the second contact surface portion is bent on the side opposite to the portion. The bent portion between the second contact surface portion and the second wall portion is continuous in the longitudinal direction of the connecting member. For this reason, the bending rigidity of a guide member with respect to the load provided to a 2nd contact surface part from a connection member can be made high. In addition, on the opposite side of the second guide plate to the second contact surface portion of the second wall portion, a second flange portion extends in the thickness direction side of the second wall portion, and the second wall portion and the second wall portion It is bent between the flange. The bent portion between the second wall portion and the second flange portion is continuous in the longitudinal direction of the connecting member. For this reason, the bending rigidity of the guide member with respect to the load applied to the second contact surface portion from the connecting member can be further increased.

The buckle device according to claim 2, in the buckle device according to claim 1, wherein the first guide plate, a load is applied from the connection member when the buckle through the tongue is pulled.

In the buckle device according to the third aspect, when the buckle is pulled through the tongue, a load is applied from the connecting member to the first guide plate , and the first guide plate can support the load.

Buckle device of claim 4, in the buckle device according to claim 1 or claim 2, wherein the first guide plate, said connecting member by the driving force of the driving means is moved in the longitudinal direction distal end side At that time, a load is applied from the connecting member.

In the buckle device according to the fourth aspect, when the connecting member is moved to the distal end side in the longitudinal direction by the driving force of the driving means, a load is applied from the connecting member to the first guide plate , and the first guide plate applies this load. I can support it.

  As described above, in the seat belt device according to the present invention, the guide member can be reduced in size.

It is a front view of the buckle device concerning a 1st embodiment. FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. Ru sectional view der taken along line 3-3 in FIG.

Next, the embodiments of the present invention will be described with reference to FIGS. 1-3. In each figure, the arrow FR indicates the front of the vehicle on which the buckle device 10 is mounted, the arrow LH indicates the left side of the vehicle, and the arrow UP indicates the upper side of the vehicle.

<Configuration of First Embodiment>
As shown in FIG. 1, the buckle device 10 according to the first embodiment includes a frame 12. The frame 12 is provided below the seat cushion 16 of the rear seat 14 of the vehicle. The frame 12 is elongated in the vehicle left-right direction, and is fixed to the vehicle floor 18 by fastening means such as bolts (not shown). The frame 12 includes a pair of guide walls 20 and 22 that face each other in the vehicle front-rear direction, and a drive screw 24 is provided between the guide walls 20 and 22.

  The axial direction of the drive screw 24 is along the longitudinal direction of the frame 12. A longitudinal end portion (vehicle right end portion) of the drive screw 24 is rotatably supported by a support member 26 provided on the frame 12. The longitudinal direction base end (vehicle left end) of the drive screw 24 is connected to a motor actuator 28 as drive means provided on the vehicle left side of the frame 12, and the drive screw 24 drives the motor actuator 28. Rotated by force. A slider 30 is provided between the guide walls 20 and 22. The slider 30 is formed in a block shape, and the vehicle front-rear direction surface is in contact with the guide walls 20 and 22. Further, the slider 30 is formed with a screw hole through which the drive screw 24 is penetrated. When the drive screw 24 rotates, the slider 30 is guided by the guide walls 20 and 22 and slid in the left-right direction of the vehicle.

  Further, the buckle device 10 includes a pair of wire ropes 32 as connecting members. These wire ropes 32 are formed in a long shape, and are provided side by side in the vehicle longitudinal direction. The longitudinal base end portion of the wire rope 32 is connected to the slider 30 and integrated with the slider 30. For this reason, when the slider 30 slides in the vehicle left-right direction, the wire rope 32 is moved in the longitudinal direction. On the other hand, the wire rope 32 is curved at the middle in the longitudinal direction, and the distal end side in the longitudinal direction of the wire rope 32 extends upward in the vehicle. The front end of the wire rope 32 in the longitudinal direction is connected to the buckle 34. The buckle 34 is provided on the side of the seating position of the occupant in the seat cushion 16 of the rear seat 14. In the state where the occupant seated on the seat cushion 16 hangs the webbing of the seat belt device around the body, the tongue provided on the webbing is engaged with the buckle 34 so that the webbing is attached to the occupant's body.

  Further, in the buckle device 10, the motor actuator 28 is electrically connected to control means (not shown) such as a motor driver or ECU. This control means includes an occupant detection means such as a load sensor provided on the seat cushion 16 of the rear seat 14, a buckle switch provided on the buckle 34 and detecting that the tongue is engaged with the buckle 34 (all not shown). The motor actuator 28 is controlled based on an electrical signal output from an occupant detection means, a buckle switch, or the like.

  Further, the buckle device 10 includes a first guide plate 42 as a guide member. The first guide plate 42 is formed by bending a metal flat plate such as iron or stainless steel by press molding. The first guide plate 42 has a longitudinal direction along the left-right direction of the vehicle on the proximal side in the longitudinal direction. Further, the first guide plate 42 is bent upward in the vehicle at two bent portions in the middle portion in the longitudinal direction. For this reason, between the two bent portions of the first guide plate 42, the longitudinal direction of the first guide plate 42 is inclined in the vehicle up-down direction with respect to the vehicle left-right direction. The longitudinal direction of the first guide plate 42 is along the vehicle vertical direction further on the distal side in the longitudinal direction than the bent portion.

  As shown in FIGS. 2 and 3, the first guide plate 42 includes a first contact surface portion 48 as a contact surface portion. The first contact surface portion 48 is plate-shaped, and one surface in the thickness direction is a first contact surface 48 </ b> A and faces the wire rope 32. The intermediate portion in the longitudinal direction of the wire rope 32 is in contact with the first contact surface 48 </ b> A of the first contact surface portion 48 between both bent portions of the first guide plate 42. Thereby, the longitudinal direction intermediate part of the wire rope 32 is curved, and the longitudinal direction front end side of the wire rope 32 extends upward in the vehicle.

  The first guide plate 42 is formed with a first wall portion 50 as a wall portion. In the first wall 50, the plate material constituting the first guide plate 42 at one end in the width direction (the vehicle rear side end) of the first abutting surface 48 is on one side in the thickness direction of the first abutting surface 48 (wires). It is formed by being bent (bent) to the rope 32 side. A bent portion (ridge line portion) of the first guide plate 42 that is a boundary between the first contact surface portion 48 and the first wall portion 50 is continuous in the longitudinal direction of the first guide plate 42.

  Further, a first flange portion 52 is formed on the first guide plate 42. The first flange portion 52 is formed by bending (bending) a plate material constituting the first guide plate 42 at the end of the first wall portion 50 opposite to the first contact surface portion 48 toward the rear of the vehicle. Is formed. A bent portion of the first guide plate 42 that is a boundary between the first flange portion 52 and the first contact surface portion 48 is continuous in the longitudinal direction of the first guide plate 42.

  Further, as shown in FIG. 1, a first fixing piece 54 is formed further on the longitudinal base end side than the bent portion on the longitudinal base end side of the first guide plate 42. As shown in FIG. 2, the first fixing piece 54 extends from the other end in the width direction of the first abutting surface portion 48 (the end opposite to the first wall portion 50) to the front of the vehicle. The first fixing piece 54 is formed with a through hole 56 penetrating in the vehicle vertical direction, and a fixing bolt 58 is passed through the through hole 56.

  On the other hand, as shown in FIG. 1, the buckle device 10 includes a second guide plate 62 as a guide member. The second guide plate 62 is formed by bending a metal flat plate such as iron or stainless steel by press molding. Further, the second guide plate 62 has a longitudinal direction along the left-right direction of the vehicle on the base end side in the longitudinal direction. Furthermore, the second guide plate 62 is bent upward in the vehicle by two bent portions in the middle portion in the longitudinal direction.

  Each bent portion of the second guide plate 62 is formed corresponding to each bent portion of the first guide plate 42. For this reason, between the two bent portions of the second guide plate 62, the longitudinal direction of the second guide plate 62 is inclined in the vehicle vertical direction with respect to the vehicle lateral direction, and the longitudinal direction front end side of the second guide plate 62 The longitudinal direction of the second guide plate 62 is along the vertical direction of the vehicle further on the distal end side in the longitudinal direction than the bent portion.

  As shown in FIGS. 2 and 3, the second guide plate 62 includes a second contact surface portion 68 as a contact surface portion. The second contact surface portion 68 has a plate shape, and the first contact surface portion 48 of the first guide plate 42 is opposite to the first contact surface portion 48 of the first guide plate 42 via the wire rope 32. Opposite. The distance between the first contact surface portion 48 of the first guide plate 42 and the second contact surface portion 68 of the second guide plate 62 is set to be larger than the diameter dimension of the wire rope 32.

  The other surface in the thickness direction of the second contact surface portion 68 (the surface on the wire rope 32 side) is a second contact surface 68A, and the wire rope 32 is pulled by the wire rope 32 being pulled in the longitudinal direction. Is brought into contact with the second contact surface 68A. Further, one side (vehicle rear side) of the second contact surface portion 68 with respect to the intermediate portion in the width direction overlaps the first flange portion 52 of the first guide plate 42 along each thickness direction.

  Further, as shown in FIG. 3, the second guide plate 62 is formed with a second wall portion 70 as a wall portion. In the second wall portion 70, the plate material constituting the second guide plate 62 at the other end in the width direction of the second contact surface portion 68 (the vehicle front side end portion) is the other side in the thickness direction of the second contact surface portion 68 ( It is formed by bending (bending) toward the wire rope 32 side. A bent portion (ridge line portion) of the second guide plate 62 that is a boundary between the second contact surface portion 68 and the second wall portion 70 is continuous in the longitudinal direction of the second guide plate 62. Further, a second flange portion 72 is formed on the second guide plate 62.

  The second flange portion 72 is formed by bending (bending) a plate material constituting the second guide plate 62 forward of the vehicle at an end portion of the second wall portion 70 opposite to the second contact surface portion 68. Is formed. A bent portion of the second guide plate 62 that is a boundary between the second flange portion 72 and the second contact surface portion 68 is continuous in the longitudinal direction of the second guide plate 62. The second flange portion 72 of the second guide plate 62 and the other side (vehicle front side) of the first abutting surface portion 48 of the first guide plate 42 overlap each other along the thickness direction of each other. ing.

  In addition, as shown in FIG. 2, a second fixing piece 74 is provided in place of the second flange portion 72 at a part of the second guide plate 62 on the base end side in the longitudinal direction from the bent portion on the base end side in the longitudinal direction. Is formed. The second fixed piece 74 extends from the end of the second wall 70 opposite to the second contact surface 68 to the front of the vehicle, and the second fixed piece 74 is the first fixed of the first guide plate 42. It overlaps with the first fixed piece 54 above the vehicle of the piece 54. The second fixed piece 74 is formed with a through hole 76 that penetrates in the vehicle vertical direction, and is formed coaxially with the through hole 56 of the first fixed piece 54.

  The fixing bolt 58 passes through the through hole 76 of the second fixing piece 74 and the through hole 56 of the first fixing piece 54 from above the vehicle, and the front end side of the fixing bolt 58 is formed on the floor 18 of the vehicle. A nut 80 passes through the through hole 78 and is screwed from below the floor 18. Thereby, the first guide plate 42 and the second guide plate 62 are fixed to the floor 18 of the vehicle.

<Operation and Effect of First Embodiment>
In the buckle device 10, when an occupant sits on the rear seat 14, the level of an electric signal output from the occupant detection means such as a load sensor provided on the seat cushion 16 of the rear seat 14 to the control means is switched. Thus, when the motor actuator 28 is driven and the drive screw 24 is rotated, the slider 30 is guided by the guide walls 20 and 22 of the frame 12 and slid rightward of the vehicle. As a result, when the wire rope 32 is moved to the distal end side in the longitudinal direction, the buckle 34 is raised together with the distal end portion in the longitudinal direction of the wire rope 32. Thus, the occupant can easily engage the tongue with the buckle 34 and can easily wear the webbing.

  On the other hand, when the tongue is engaged with the buckle 34, the level of the electric signal output from the buckle switch of the buckle 34 to the control means is switched. Thus, when the motor actuator 28 is driven and the drive screw 24 is rotated, the slider 30 is guided by the guide walls 20 and 22 of the frame 12 and slid leftward of the vehicle. As a result, when the wire rope 32 is moved to the proximal side in the longitudinal direction, the buckle 34 is lowered together with the distal end portion in the longitudinal direction of the wire rope 32. Thereby, for example, when the occupant gets on and off the vehicle, the buckle 34 can be reduced from coming into contact with the occupant's body.

  Incidentally, the wire rope 32 passes between the first contact surface portion 48 of the first guide plate 42 and the second contact surface portion 68 of the second guide plate 62, and the wire rope 32 is connected to the first guide plate 42. The two bent portions are curved by coming into contact with the first contact surface 48A of the first contact surface portion 48. For this reason, the elastic force of the wire rope 32 is applied to the first contact surface portion 48 between the two bent portions of the first guide plate 42. Further, when the wire rope 32 is moved to the front end side in the longitudinal direction by driving the motor actuator 28, the first contact surface portion 48 is pressed by the wire rope 32 between the two bent portions of the first guide plate 42. The Such a load F1 (see FIG. 3), which is the elastic force of the wire rope 32 and the pressing force from the wire rope 32, tries to deform the first guide plate 42 to the lower right side of the vehicle (arrow A in FIG. 1). .

  Here, in the first guide plate 42, one end in the width direction (the vehicle rear side end) of the first contact surface portion 48 is bent toward one side in the thickness direction (the wire rope 32 side) of the first contact surface portion 48. The first wall portion 50 extends from the bent portion to one side in the thickness direction of the first contact surface portion 48 (wire rope 32 side). Further, a bent portion (ridge line portion) of the first guide plate 42 that is a boundary between the first contact surface portion 48 and the first wall portion 50 is continuous in the longitudinal direction of the first guide plate 42. Thus, since the cross-sectional shape of the first guide plate 42 is bent in a bowl shape (L-shape), the first guide plate 42 has high bending rigidity with respect to the load F1.

  Moreover, in the first guide plate 42, the end of the first wall 50 opposite to the first abutting surface 48 is bent, and the first flange 52 extends from this bent portion. Further, a bent portion (ridge line portion) of the first guide plate 42 that is a boundary between the first wall portion 50 and the first flange portion 52 is continuous in the longitudinal direction of the first guide plate 42. For this reason, the bending rigidity with respect to the load F1 of the 1st guide plate 42 becomes still higher. Thereby, the deformation of the first guide plate 42 due to such a load F1 can be prevented or suppressed, and the first guide plate 42 can support the load F1.

  On the other hand, when the wire rope 32 is moved to the longitudinal base end side by driving the motor actuator 28, the wire rope 32 is bent at both ends of the second guide plate 62 as shown by a two-dot chain line in FIG. The second abutment surface portion 68 abuts against the second abutment surface 68 </ b> A of the second abutment surface portion 68. Further, when the pretensioner of the webbing take-up device constituting the seat belt device is actuated in the event of a vehicle emergency, the buckle 34 is pulled by the webbing through the tongue. When the buckle 34 is pulled in this way and the longitudinal tip portion of the wire rope 32 is lifted together with the buckle 34, the wire rope 32 is connected to both the second guide plates 62 as shown by a two-dot chain line in FIG. The second contact surface portion 68 is pressed by the wire rope 32 by being in contact with the second contact surface portion 68 between the bent portions.

  Such a load F2 (see FIG. 3), which is a pressing force from the wire rope 32, tends to deform the second guide plate 62 to the upper left of the vehicle (arrow B in FIG. 1). Here, in the second guide plate 62, the other end in the width direction (vehicle front side end) of the second contact surface portion 68 is bent toward the other side in the thickness direction (wire rope 32 side) of the second contact surface portion 68. The second wall portion 70 extends from the bent portion to the other side in the thickness direction of the second contact surface portion 68 (on the wire rope 32 side). Further, a bent portion (ridge line portion) of the second guide plate 62 that is a boundary between the second contact surface portion 68 and the second wall portion 70 is continuous in the longitudinal direction of the second guide plate 62. As described above, the second guide plate 62 has a high bending rigidity with respect to the load F2 because the cross-sectional shape of the second guide plate 62 is bent in a bowl shape (L-shape).

  Moreover, in the second guide plate 62, the end of the second wall portion 70 opposite to the second contact surface portion 68 is bent, and the second flange portion 72 extends from this bent portion. Further, a bent portion (ridge line portion) of the second guide plate 62 that is a boundary between the second wall portion 70 and the second flange portion 72 is continuous in the longitudinal direction of the second guide plate 62. For this reason, the bending rigidity with respect to the load F2 of the 2nd guide plate 62 becomes still higher. Thereby, the deformation of the second guide plate 62 due to such a load F2 can be prevented or suppressed, and the second guide plate 62 can support the load F2.

  Thus, in the buckle device 10, sufficient bending rigidity with respect to the loads F1 and F2 can be obtained without increasing the thickness of each of the first guide plate 42 and the second guide plate 62. As a result, the first guide plate 42 and the second guide plate 62 can be reduced in size, particularly in the vertical direction of the vehicle, and limited to the vertical direction of the vehicle between the seat cushion 16 and the floor 18 of the rear seat 14 of the vehicle. The first guide plate 42 and the second guide plate 62 can be disposed in the remaining space.

  In addition, the first guide plate 42 and the second guide plate 62 formed by press-molding a metal flat plate have the first fixed piece 54 and the second fixed piece 74 in a flat plate shape. For this reason, the fixed part to the floor 18 of the vehicle of the first guide plate 42 and the second guide plate 62 can be thinned in the vehicle vertical direction. Accordingly, the fixing bolt 58 can be shortened, and the fixing bolt 58 can be easily passed through the through hole 56 of the first fixing piece 54, the through hole 76 of the second fixing piece 74, and the through hole 78 of the floor portion 18. . For this reason, the first guide plate 42 and the second guide plate 62 can be easily fixed by the fixing bolt 58.

  The first guide plate 42 and the second guide plate 62 are formed by press-molding a metal flat plate. For this reason, cost can be reduced compared with the structure which forms the member for guiding the wire rope 32 by sintering or casting.

In the present embodiment, the first guide plate 42 and the second guide plate 62 may be coupled to a portion other than the fixed portion of the fixing bolt 58. For example, in the first embodiment, one side (vehicle rear side) of the second contact surface portion 68 of the second guide plate 62 with respect to the intermediate portion in the width direction and the first flange portion 52 of the first guide plate 42. Are joined by fastening means such as bolts, rivets and screws, and joining means such as welding, and from the intermediate portion in the width direction of the second flange portion 72 of the second guide plate 62 and the first contact surface portion 48 of the first guide plate 42. Alternatively, the other side (the vehicle front side) may be coupled by fastening means such as bolts, rivets and screws, and joining means such as welding. As a result, the first abutment surface portion 48, the first wall portion 50 of the first guide plate 42, the second abutment surface portion 68 of the second guide plate 62, and the second wall portion 70 are closed in cross section, and the wire rope Higher bending rigidity can be obtained with respect to loads F1 and F2 from 32.

Furthermore, in the present embodiment, the frame 12, the first guide plate 42, and the second guide plate 62 are configured separately. However, at least one of the first guide plate 42 and the second guide plate 62 and the frame 12 may be configured integrally.

In the present embodiment, the slider 30 and the buckle 34 are connected by the two wire ropes 32. However, the number of the wire ropes 32 may be one or three or more.

Further, in the present embodiment, for example, the first wall portion 50 is formed by bending the width direction end portion of the first contact surface portion 48 of the first guide plate 42 to increase the bending rigidity with respect to the load F1. Yes. However, for example, a bead portion having a concave cross section is provided at the first intermediate portion in the width direction of the first contact surface portion 48 of the first guide plate 42 and the second intermediate portion in the width direction of the second contact surface portion 68 of the second guide plate 62. It is good also as a structure continuously formed in the longitudinal direction of the contact surface part 48 or the 2nd contact surface part 68, and the guide member should just be the structure by which the bent part of the board | plate material continued in the longitudinal direction of the connection member.

10 Buckle device 28 Motor actuator (drive means)
32 Wire rope (connection member)
34 Buckle 42 First guide plate (guide member)
48 1st contact surface part (contact surface part)
50 First wall (wall)
62 Second guide plate (guide member)
68 Second contact surface portion (contact surface portion)
70 Second wall (wall)
F1 load F2 load

Claims (3)

A buckle with which the tongue is engaged;
A connecting member having a longitudinal tip connected to the buckle;
Driving means for moving the buckle by moving the connecting member in the longitudinal direction by a driving force, the base end side of the connecting member being connected in the longitudinal direction;
A first abutting surface portion configured by a bent plate material, capable of abutting a middle portion in a longitudinal direction of the connecting member on a surface on a thickness direction side, and being applied with a load from the connecting member; A first wall portion that is bent between the first wall portion and extends in the thickness direction of the first contact surface portion; and the first wall portion on a side opposite to the first contact surface portion of the first wall portion. A bent portion between the first abutting surface portion and the first wall portion, and the first wall portion having a first flange portion that is bent and extends toward the thickness direction of the first wall portion. And a first guide plate in which a bent portion between the first flange portion and the first flange portion is continuous in the longitudinal direction of the connecting member;
It is constituted by a bent plate material, is disposed on the opposite side of the first contact surface portion with the connection member interposed therebetween, and the longitudinal direction intermediate portion of the connection member is disposed on the surface of the second contact surface portion on the thickness direction side. The second abutting surface portion that is capable of abutting and to which a load is applied from the connecting member and the second abutting surface portion on the side opposite to the first wall portion with the connecting member interposed therebetween are bent. The second wall portion extending in the thickness direction side of the second contact surface portion and the second wall portion on the opposite side of the second wall portion from the second contact surface portion are bent and the second wall portion is bent. A second flange portion extending in the thickness direction side of the wall portion, a bent portion between the second contact surface portion and the second wall portion, the second wall portion and the second flange portion, A second guide plate in which a bent portion between the two is continuous in the longitudinal direction of the connecting member;
A buckle device comprising: The buckle device according to claim 1, wherein the first guide plate is applied with a load from the connecting member when the buckle is pulled through the tongue. The buckle device according to claim 1 or 2, wherein a load is applied to the first guide plate from the connecting member when the connecting member is moved to the distal end side in the longitudinal direction by the driving force of the driving unit.

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