JP7207119B2 - Anchor plate and anchoring device for seat belt webbing - Google Patents

Description

The present invention relates to an anchor plate and an anchor device for connecting seat belt webbing to the vehicle body of an automobile or the like.

An anchoring device for connecting seat belt webbing to a vehicle body is described in US Pat. This anchor device has an anchor plate, an opening provided in the anchor plate, a stopper made of a spring plate riveted to the plate body, and the like. The head of a bolt fixed to the vehicle body is inserted into the opening, and the edge of the opening is clamped between the flange and head of the bolt. When the locking piece provided on the stopper engages with the bolt head, the bolt head is prevented from retreating, and the edge is held between the bolt head and the flange.

In the anchor device of Patent Document 1, it is necessary to provide the anchor plate with two openings, the second opening through which the bolt is passed, and the first opening through which the seat belt webbing is passed. Also, the length of the anchor plate is increased. 5 to 10 of Patent Document 1 describe an anchor device provided with a U-shaped bent stopper piece. Therefore, it takes time and effort to manufacture the spring plate.

JP 2018-144541 A

An object of the present invention is to provide an anchor plate that is easy to manufacture and an anchor device using this anchor plate.

The anchor plate of the present invention comprises a plate body having an opening into which a locking body attached to a vehicle body or a seat is inserted on the base end side and a seat belt webbing is inserted on the tip side, and an anchor plate attached to the plate body. A seat belt webbing anchor plate having a spring plate, wherein the spring plate includes a pair of legs overlapping side portions on both sides of an opening, a second tie portion connecting base end sides of the legs, and the It has a tongue portion extending from the second tie portion to the middle of the opening, and a stopper piece provided on the tongue portion, and the tip end side of the opening serves as an insertion portion for the seat belt webbing. It is characterized by

In one aspect of the present invention, the spring plate has a first tie portion that connects tip sides of the leg portions, and the seat belt webbing is attached to the tip side of the plate main body from the first tie portion in the opening. It is an insertion part of

In one aspect of the present invention, the opening has a large hole portion through which the locking body is inserted and a small hole portion connected to the large hole portion, and the tongue portion extends from the second tie portion to the second tie portion. It extends to the large hole side, and the stopper piece is provided on the tip end side of the tongue portion in the extending direction, and the stopper piece can be engaged with the locking body.

In one aspect of the present invention, the second tie portion is along the base end of the plate body, and the second tie portion is provided with a hole such as an elongated hole. is inserted.

In one aspect of the present invention, the tongue portion is provided with a convex portion that engages with a concave hole on the top surface of the locking body.

In one aspect of the present invention, the spring plate is arranged on one surface of the plate body, and the legs of the spring plate are connected to each other only through the second tie portion.

In one aspect of the present invention, the second tie portion is provided with a claw piece, and the plate body is provided with a claw piece insertion hole into which the claw piece is inserted.

In one aspect of the present invention, the second tie portion is convexly curved toward the proximal end of the plate body.

In one aspect of the present invention, the length of the leg is smaller than the length of the tongue in the extending direction.

In one aspect of the invention, the legs of the spring plate are fixed to the plate body by rivets.

The anchor device of the present invention has such an anchor plate and a locking body attached to the vehicle body or seat.

In one aspect of the present invention, the locking body includes a bolt shaft, a bolt head on the tip end side of the bolt shaft, a flange facing the bolt head, and a top surface of the bolt head. The edge of the opening of the anchor plate is sandwiched by the groove between the bolt head and the flange, and the projection of the tongue engages with the recess of the bolt head. ing.

The plate body of the anchor plate of the present invention has continuous openings for the bolts and seat belt webbing, which facilitates manufacturing and reduces the cost of the anchor plate. It is also possible to reduce the length of the plate body.

1 is a perspective view of an anchor device according to an embodiment; FIG. FIG. 4 is a perspective view of the anchor device during engagement between the anchor plate and the bolt; FIG. 3 is a perspective view of an anchoring device with an anchor plate and bolts engaged; FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3; FIG. 4 is a perspective view of the back surface of the anchor plate; Fig. 3 is a perspective view of the cover and anchoring device; 1 is a perspective view of an anchoring device with a cover; FIG. 1 is a perspective view of an anchoring device with a cover; FIG. Figure 9 is a perspective view of the cover of Figure 8; Figure 10 is a perspective view of the cover from the opposite side of Figure 9; FIG. 11 is a perspective view of the anchor device during installation of the cover; 1 is a perspective view of an anchor device according to an embodiment; FIG. It is a perspective view of an anchor plate and a plate main body. FIG. 3 is a perspective view of an anchoring device with an anchor plate and bolts engaged; 1 is a perspective view of an anchoring device with a cover; FIG. FIG. 4 is a perspective view of a cover;

A first embodiment will be described below with reference to FIGS.

As shown in FIG. 1, the anchor device 1 has a bolt 2 as a locking body attached to the vehicle body of an automobile, and an anchor plate 3 locked to the bolt 2 . A seat belt webbing is passed through the opening 15 of the anchor plate 3 .

The bolt 2 is formed between a bolt shaft portion 2a, a bolt head portion 2b at the tip of the bolt shaft portion 2a, a flange 2c provided in the middle of the bolt shaft portion 2a, and the bolt head portion 2b and the flange 2c. and a groove 2d (FIG. 4). A recessed hole 2e with which a tool is engaged is provided on the top surface of the bolt head 2b. Although illustration is omitted, a male screw is provided on the outer peripheral surface of the bolt shaft portion 2a on the rear end side of the flange 2c. The groove 2d surrounds the bolt head 2b. The gap between the bolt head 2b and the flange 2c is slightly larger than the thickness of the plate body 10 of the anchor plate 3.

The anchor plate 3 has a plate body 10 and a spring plate 20 attached to the plate body 10 . The plate body 10 is made of a metal plate having a first plate surface 10a and a second plate surface 10b (FIG. 5). The length of the plate body 10 in the front-rear direction from the distal end 10T to the proximal end (rear end) 10E is greater than the width in the direction perpendicular thereto. The proximal end 10E has a convex shape that protrudes rearward from the plate body 10 .

The opening 15 is provided in the plate body 10 . The opening 15 extends in the longitudinal direction of the plate body 10, has a webbing insertion portion 15w on the side of the tip 10T, and a small hole portion 15b on the side of the base 10E. A large hole portion 15a is provided between the webbing insertion portion 15w and the small hole portion 15b. The large hole portion 15a has a size through which the bolt head 2b can pass. The lateral width of the large hole portion 15a gradually decreases toward the proximal end 10E. The width of the narrow hole portion 15b is smaller than the diameters of the bolt head 2b and the flange 2c and slightly larger than the bolt diameter in the groove portion 2d.

In the vicinity of the boundary between the webbing insertion portion 15w and the large hole portion 10a, projecting portions 18 are provided that protrude from the first side portion 11 and the second side portion 12, which will be described below, in a direction toward each other.

5, the plate body 10 has a first side portion 11 and a second side portion 12 on both sides of the opening 15, a lower end portion 13 on the base end 10E side, and an upper tip 10T side. It has an end portion 14 .

The spring plate 20 has a frame shape. That is, the spring plate 20 has a first leg portion 21 along the first side portion 11 on the side of the first plate surface 10a, a second leg portion 22 along the second side portion 12, and the first and second leg portions 21 , 22, a second tie portion 24 connecting the base ends 10E of the legs 21 and 22, and extending from the second tie portion 24 toward the large hole portion 15a. , a stopper piece 26 provided by cutting and raising the tongue portion 25, and an elongated hole 27 provided in the second tie portion 24, and the like.

The first leg portion 21 extends along the first side portion 11 and is fixed to the first side portion 11 by a rivet 29 at a middle portion in the extending direction. The second leg portion 22 extends along the second side portion 12 and is fixed to the second side portion 12 by a rivet 29 at a midpoint in the extending direction. The leg portions 21 and 22 rise so as to be separated from the first plate surface 10a of the plate body 10 by a predetermined distance on the second tie portion 24 side of the portion to which the rivets 29 are fastened.

The first tie portion 23 is located closer to the tip 10T than the projecting portions 18,18. The length of the first tie portion 23 is greater than the distance between the overhanging portions 18,18. The first tie portion 23 is folded up from the leg portions 21 and 22 at a substantially right angle and enters the opening 15 .

The second tie portion 24 is folded up from the leg portions 21 and 22 toward the proximal end 10E of the plate body 10 . The elongated hole 27 extends in a direction connecting the legs 21 and 22, and the proximal end 10E is fitted into the elongated hole 27. As shown in FIG.

The tongue portion 25 extends from the second tie portion 24 toward the tip 10T side substantially parallel to the first plate surface 10a of the plate body 10 . The tip of the tongue portion 25 in the extending direction reaches the large hole portion 15a.

The plate surface of the tongue portion 25 and the first plate surface 10a of the plate body 10 are separated by the thickness of the bolt head 2b. The tongue portion 25 is provided with a convex portion 25b that fits into the concave hole 2e of the bolt head portion 2b.

The stopper piece 26 is formed by cutting and raising the tongue portion 25 . The stopper piece 26 is in the shape of a tongue extending from the tip portion 25a of the tongue portion 25 and extending toward the second tie portion 24 from the tip portion 25a. The stopper piece 26 is inclined so as to approach the plate body 10 side from the plate surface of the tongue portion 25 toward the second tie portion 24 side.

The bolt 2 is fixed to the vehicle body or the seat by screwing the bolt shaft portion 2a into a female screw member (not shown) of the vehicle body or the seat.

An anchor plate 3 is locked to a bolt 2 fixed to the vehicle body or seat as follows. A seat belt webbing (not shown) is inserted in advance through the webbing insertion portion 15w of the anchor plate 3 (on the tip 10T side of the first tie portion 23).

As shown in FIG. 2, the large hole portion 15a of the opening 15 is fitted onto the bolt head 2b, and then the anchor plate 10 is moved in the direction in which the proximal end 10E approaches the bolt 2. As shown in FIG. The bolt head 2b slides along the first plate surface 10a of the plate body 10, and the flange 2c slides along the second plate surface 10b. Then, the bolt head 2b contacts the surface of the stopper piece 26 on the plate body 10 side. When the anchor plate 3 is moved further, the bolt head 2b enters between the stopper piece 26 and the plate body 10.例文帳に追加

When the anchor plate 3 is moved further, as shown in FIGS. 3 and 4, the bolt head 2b passes through the stopper piece 26 and moves to the proximal end 10E side of the small hole portion 15b. In this state, the stopper piece 26 is located closer to the large hole portion 15a than the bolt head 2b, and the tip of the stopper piece 26 engages the side surface of the bolt head 2b. As a result, the bolt head 2b is prevented from retreating in the direction of the large hole portion 15a, and the anchor plate 10 is connected to the bolt 2 in a non-removable manner. The left and right side edges of the small hole portion 15b and the edge portion on the base end 10E side are sandwiched between the bolt head portion 2b and the flange 2c. The convex portion 25b of the tongue portion 25 enters the concave hole 2e of the bolt head portion 2b, and restrains the movement of the anchor plate 10 in the direction along the first plate surface 10a.

Since the anchor plate 3 has one opening 15 in the plate body 10, it is easy to manufacture and the overall length of the plate body 10 can be reduced. Moreover, the spring plate 20 as a whole has a substantially flat plate shape, and is easy to manufacture.

In this anchor plate 3, the inside of the opening 15 is partitioned by the first tie portion 23 to define the webbing insertion portion 15w. This locking operation can be easily carried out without entanglement. Moreover, the space between the first tie portion 23 and the upper end portion 14 can be set so as to press the seat belt webbing therebetween.

In this anchor plate 3, since the base end 10E of the plate body 10 is fitted into the elongated hole 27 of the second tie portion 24 of the spring plate 20, the second tie portion 24 moves in the direction perpendicular to the plate surfaces 10a and 10b. is prevented, and vibration and abnormal noise are prevented.

Although not shown, the inner peripheral surface and edges of the small hole portion 15b may be coated with rubber, synthetic resin, or the like, or a cover may be attached. This prevents or reduces noise caused by direct contact between the bolt 2 and the anchor plate 10 .

In the present invention, it is preferable to provide a cover 40 as shown in FIGS. 6 and 7 in order to protect the spring plate from external force and to protect the connection state between the anchor plate and the webbing.

The cover 40 includes a first side rail portion 41 along the first side portion 11 and the first leg portion 21, a second side rail portion 42 along the second side portion 12 and the second leg portion 22, and the side rails It is substantially U-shaped and has a bottom portion 43 that connects the base ends of the portions 41 and 42 together. The side rail portions 41 and 42 are provided with grooves 44 and 45. The first side portion 11 and the first leg portion 21 are inserted into the grooves 44, and the grooves 45 are inserted into the second side portion 12 and the first leg portion 21. The second leg 22 is inserted.

Another cover 50 is shown in FIGS. 8-11. As shown in FIGS. 9 and 10, the cover 50 is frame-shaped with first to fourth sides 51 to 54 and a U-shaped portion 55 . As shown in FIG. 11, the U-shaped portion 55 is inserted into the back side of the tongue portion 25 from the side of the third side 53, the third side 53 is engaged with the proximal end 10E, and the anchor device 1 is attached as shown in FIG. be.

An anchor device 1A according to a second embodiment will be described below with reference to FIGS. 12 to 16. FIG. In addition, the same code|symbol is attached|subjected and demonstrated to the same or corresponding member as 1st Embodiment.

As shown in FIG. 14, the anchor device 1A has a bolt 2 as a locking body attached to the vehicle body of an automobile, and an anchor plate 3A locked to the bolt 2. As shown in FIG. A seat belt webbing is passed through the opening 15 of the anchor plate 3A.

The bolt 2 has a configuration similar to that of the first embodiment.

The anchor plate 3A has a plate body 10A and a spring plate 20A attached to the plate body 10A. The plate body 10</b>A has substantially the same configuration as the plate body 10 , but the opening 15 is not provided with the projecting portion 18 . Moreover, the proximal end 10E does not have a convex shape that protrudes rearward from the plate body 10 .

The spring plate 20A does not have the first tie portion 23 and does not have the elongated hole 27. As shown in FIG. That is, the spring plate 20A includes a first leg portion 21 along the first side portion 11 on the side of the first plate surface 10a, a second leg portion 22 along the second side portion 12, and base ends of the legs 21 and 22. It has a second tie portion 24 connecting the 10E sides, a tongue portion 25 extending from the second tie portion 24 toward the large hole portion 15a, and a stopper piece 26 provided by cutting and raising the tongue portion 25. .

The first leg portion 21 extends along the first side portion 11 and is fixed to the first side portion 11 by a rivet 29 at its leading end portion in the extending direction. The second leg portion 22 extends along the second side portion 12 and is fixed to the second side portion 12 by a rivet 29 at its leading end portion in the extending direction. The leg portions 21 and 22 rise so as to be separated from the first plate surface 10a of the plate body 10A by a predetermined distance on the second tie portion 24 side of the portion to which the rivets 29 are fastened.

The length in the extending direction of the legs 21 and 22 is smaller than the length in the extending direction of the tongue portion 25 .

The second tie portion 24 is convexly curved in a semicircular shape toward the proximal end 10E of the plate body 10A.

A pair of claw pieces 24t are projected from the second tie portion 24, and each claw piece 24t is inserted into the claw piece insertion hole 10j of the plate main body 10A.

The tongue portion 25 extends from the second tie portion 24 toward the tip 10T side substantially parallel to the first plate surface 10a of the plate body 10A. The tip of the tongue portion 25 in the extending direction reaches the large hole portion 15a.

A notch 24 k is provided between the tongue portion 25 and the base portions of the leg portions 21 and 22 so as to bite into the second tie portion 24 . By changing the length of the cut 24k, the elastic properties of the tongue portion 25 are changed.

The plate surface of the tongue portion 25 and the first plate surface 10a of the plate body 10A are separated by the thickness of the bolt head 2b.

The structure of the stopper piece 26 is the same as that of the first embodiment.

The bolt 2 is fixed to the vehicle body or the seat by screwing the bolt shaft portion 2a into a female screw member (not shown) of the vehicle body or the seat.

The anchor plate 3A is locked to the bolt 2 fixed to the vehicle body or seat as shown in FIG. 14 in the same manner as in the first embodiment.

Also in this second embodiment, as shown in FIG. 14, the stopper piece 26 is positioned closer to the large hole portion 15a than the bolt head 2b, and the tip of the stopper piece 26 engages the side surface of the bolt head 2b. As a result, the bolt head 2b is prevented from retreating in the direction of the large hole portion 15a, and the anchor plate 10A is connected to the bolt 2 in a non-removable manner. The left and right side edges of the small hole portion 15b and the edge portion on the base end 10E side are sandwiched between the bolt head portion 2b and the flange 2c.

Since the anchor plate 3A has one opening 15 in the plate main body 10A, it is easy to manufacture and it is possible to reduce the overall length of the plate main body 10A.

It is preferable to provide a cover 60 as shown in FIGS. 15 and 16 in order to protect the spring plate from external force and to protect the connection state between the anchor plate and the webbing.

As shown in FIG. 16, the cover 60 includes a first side rail portion 61 along the first side portion 11 and the first leg portion 21 and a second side rail portion along the second side portion 12 and the second leg portion 22. 62, a bottom portion 63 connecting the base ends of the side rail portions 61 and 62, and a top portion 64 connecting to the distal end portions of the side rail portions 61 and 62 via flexible hinge portions 64f. It is of shape. A tab 66 is provided on each of the side rail portions 61 and 62 , and each tab 66 is inserted into a tab insertion hole 67 provided on the first side portion 11 and the second side portion 12 .

Each of the side rail portions 61 and 62 is provided with a clip 69 that wraps around the inner peripheral edges of the first and second side portions 11 and 12 and is engaged with the edge portion of the opening 15 .

The flexible hinge portion 64f is bendable with respect to the side rail portions 61 and 62. As shown in FIG. The top portion 64 has a first piece 64a and a second piece 64b. As shown in FIG. 15, the tip 10T of the plate body 10A is sandwiched between the first piece 64a and the second piece 64b.

As shown in FIG. 15, the cover 60 has a bridge portion 65 substantially parallel to the top portion 64 . The bridge portion 65 is constructed between the side rail portions 61 and 62 . A webbing is inserted between the bridge portion 65 and the top portion 64 .

Protruding supports 68 are provided on the side of the base ends 10E of the side rail portions 61 and 62 so as to protrude in the approaching direction. A support 68 is inserted inside the semi-circularly curved second tie portion 24 .

The above-described embodiment is an example of the present invention, and the present invention may be in forms other than those shown in the drawings. For example, although the bolt 2 is used as the locking body in the above embodiment, a locking body other than the bolt may be used.

Reference Signs List 1, 1A anchor device 2 bolt 2e recess 3, 3A anchor plate 10, 10A plate body 15 opening 20, 20A spring plate 21, 22 leg 23 first tie portion 24 second tie portion 25 tongue portion 25b protrusion 26 stopper piece 27 long hole 29 rivet 40,50,60 cover

Claims (12)

a plate body having an opening into which a locking body attached to a vehicle body or a seat is inserted on the proximal side and a seat belt webbing is inserted on the distal side;
A seat belt webbing anchor plate having a spring plate attached to the plate body,
The spring plate includes a pair of legs overlapping the side portions on both sides of the opening, a second tie portion connecting base end sides of the legs, and extending from the second tie portion to the middle of the opening. It has a tongue portion and a stopper piece provided on the tongue portion,
An anchor plate for a seat belt webbing, wherein the leading end of the opening serves as an insertion portion for the seat belt webbing. The spring plate has a first tie portion that connects tip ends of the legs,
2. An anchor plate for a seat belt webbing according to claim 1, wherein the seat belt webbing inserting portion is formed in the opening on the front end side of the plate body with respect to the first tie portion. The opening has a large hole through which the locking body is inserted and a small hole connected to the large hole,
The tongue portion extends from the second tie portion toward the large hole portion,
3. The anchor plate according to claim 1, wherein the stopper piece is provided on the distal end side of the tongue portion in the extending direction, and the stopper piece can be engaged with the locking body. . The second tie portion is along the base end of the plate body,
A hole is provided in the second tie portion,
The anchor plate according to any one of claims 1 to 3, wherein the proximal end of the plate body is inserted into the hole. The anchor plate according to any one of claims 1 to 4, wherein the tongue portion is provided with a convex portion that engages with a concave hole on the top surface of the locking body. The spring plate is arranged on one surface of the plate body,
The anchor plate according to claim 1, wherein the legs of the spring plate are connected only through the second tie part. The second tie portion is provided with a claw piece,
7. The anchor plate according to claim 6, wherein the plate body is provided with a claw piece insertion hole into which the claw piece is inserted. The anchor plate according to claim 6 or 7, wherein the second tie portion is convexly curved toward the proximal end of the plate body. The anchor plate according to any one of claims 6 to 8, wherein the length of the leg is smaller than the length of the tongue in the extending direction. The anchor plate according to any one of claims 1 to 9, wherein the legs of the spring plate are fixed to the plate body by rivets. An anchor device for seat belt webbing, comprising: the anchor plate according to any one of claims 1 to 10; and a locking member attached to a vehicle body or a seat. The anchor plate is the anchor plate according to claim 5,
The locking body has a bolt shaft, a bolt head on the tip side of the bolt shaft, a flange facing the bolt head, and a recess provided on the top surface of the bolt head. ,
the edge of the opening of the anchor plate is sandwiched by the groove between the bolt head and the flange;
12. The anchor device according to claim 11, wherein the convex portion of the tongue portion is engaged with the concave portion of the bolt head.

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