JP4710883B2 - Buckle device - Google Patents

Description

  The present invention relates to a buckle device constituting a seat belt device of a vehicle.

  The buckle constituting the seat belt device of the vehicle is provided with detection means such as a buckle switch for detecting whether or not a tongue has been inserted. For example, whether or not an occupant is seated on the seat (i.e. , Whether or not the webbing belt is attached to the body of the occupant can be detected.

Such a detection means is connected to a power source via a connection cord. For example, in the configuration disclosed in Patent Document 1 below, such a connection cord is provided with a belt-like cloth for connecting the buckle and the vehicle body. It is held in a synthetic resin layer for coating.
Japanese Utility Model Publication No. 63-34757

  By the way, the buckle provided corresponding to the seating positions on both sides in the vehicle width direction of the rear seat is made of a relatively hard synthetic resin material as described above in consideration of the operability when inserting the tongue. In many cases, the belt and the buckle are covered so that they stand on the seat. On the other hand, the buckle provided corresponding to the seating position on the center side in the vehicle width direction of the rear seat is provided so as to be arranged in the vicinity of the buckle at one of the seating positions on both sides in the vehicle width direction. If the structure is such that it can stand on its own like the buckle, the seating space on the seat is reduced.

  For this reason, the buckle corresponding to the seating position on the center side is flexible because the synthetic resin material covering the belt-like cloth is soft. Therefore, for example, when the buckle is pulled to insert the tongue, a load based on the pull acts on the connection cord, and consequently acts on a connector or the like provided at the end of the connection cord opposite to the buckle. . For this reason, it is difficult to handle the connection cord and to fix the end of the connection cord on the side opposite to the buckle.

  An object of the present invention is to obtain a buckle device that can easily handle a connecting member such as a connecting cord and fix an end portion in consideration of the above facts.

  According to a first aspect of the present invention, there is provided a buckle device according to the present invention, wherein the base end side is connected to the vehicle body or the seat directly or indirectly and has a flexible first connection means, and is formed in a cylindrical shape and the inner side is the first. A first covering member through which one connecting means passes, and a first buckle device main body provided on the seat and connected to a distal end side of the first connecting means at a side of a base end portion of the first covering member; The other end of the first covering member passing through the inner side of the first covering member is connected to a predetermined member provided on the first buckle device main body, and the other end portion of the first covering member is removed from the base end portion of the first covering member. A connecting member that is fixed to a portion different from any one of the one buckle device main body, the first connecting means, and the first covering member, and that can supply power to the predetermined member by connecting the other end to a power source; And the connecting member on the proximal end side of the first covering member Connected to the fixed portion of the other end of the connecting member, and regulating the spacing from the fixed portion of the connecting position, it is characterized in that.

  According to the buckle device of the present invention as set forth in claim 1, the first buckle device main body on the seat is connected to the vehicle body or the seat via the first connecting means covered by the first covering member. Further, the first buckle device main body is provided with a predetermined member, for example, a buckle switch for detecting whether or not a tongue provided on the webbing belt of the seat belt device is inserted into the first buckle device main body.

  A connecting member having one end connected to the predetermined member passes through the inside of the first covering member. The connecting member that has come out of the base end of the first covering member (the end opposite to the first buckle device main body) has the other end (the end opposite to the first buckle device main body) as the first buckle. It is fixed to a part different from any of the apparatus main body, the first connecting means, and the first covering member, and one end of the connecting member is connected to a power source, so that power can be supplied to the predetermined member. It becomes possible to operate.

  Here, in the buckle device according to the present invention, the base end side portion of the first covering member in the first connecting means and the portion to which the other end of the connecting member is fixed are connected, and the first connecting means in the first connecting means. The separation between the base end portion of the one covering member and the portion where the other end of the connecting member is fixed is restricted. Thereby, even when the first connecting means is pulled through the first buckle device body when the tongue is inserted into the first buckle device body, the load based on such pulling acts on the other end portion of the connection member. This can be suppressed or prevented.

  A buckle device according to a second aspect of the present invention is the buckle device according to the first aspect of the present invention, wherein the second buckle device main body is provided on the side of the first buckle device main body, and the base end side is a vehicle body or a seat. A second connecting means connected directly or indirectly to the second buckle device main body and the second connecting means covering the second connecting means, and the second connecting means standing on the seat And a second covering member to which the other end of the connecting member is fixed.

  According to the buckle device of the present invention as set forth in claim 2, the second buckle device body is provided on the side of the first buckle device body on the seat. The second buckle device main body is connected to the vehicle body or the seat via the second connecting means. The second connecting means is covered with the second covering member and is held in a standing state on the seat by the rigidity of the second covering member.

  Further, the other end of the connection member is fixed to the second covering member. Here, the second covering member to which the other end of the connecting member is fixed and the proximal end portion of the first covering member in the first connecting means are connected, and the second covering member and the first connecting means in the first connecting means. The separation from the base end portion of the covering member is restricted. Thereby, even when the first connecting means is pulled through the first buckle device body when the tongue is inserted into the first buckle device body, the load based on such pulling acts on the other end portion of the connection member. This can be suppressed or prevented.

  Thus, in the buckle device according to the present invention, since the occurrence of problems associated with pulling the first buckle device body can be suppressed or prevented, the first connecting member and the first buckle device body are in a state of standing on the seat. The first connecting member and the first covering member do not need to be held, and can be bent. Thereby, it can prevent or suppress that the seating space of a seat becomes narrow by providing a 1st buckle apparatus main body and a 2nd buckle apparatus main body.

  The buckle device according to a third aspect of the present invention is the buckle device according to the first or second aspect of the present invention, wherein one end is fixed to the first connecting means on the base end side of the first covering member, It is characterized by including a restricting member fixed in the vicinity of a portion to which the connecting member is fixed.

  In the buckle device according to the third aspect of the present invention, one end of the restricting member is fixed to the first connecting means on the proximal end side of the first covering member, and the restricting member is disposed in the vicinity of the portion where the connecting member is fixed. By fixing the end, the separation between the portion of the first connecting member on the proximal end side of the first covering member and the portion where the other end of the connecting member is fixed is regulated.

  For this reason, in the buckle device according to the present invention, even if the first connecting means is pulled through the first buckle device main body simply by providing a restricting member without requiring a large design change with respect to the conventional buckle device, It can suppress or prevent that the load based on such tension | pulling acts on the other end part of a connection member.

  As described above, in the buckle device according to the first aspect of the present invention, even when the connecting member is pulled through the first buckle device main body when the tongue is inserted into the first buckle device main body, this is the case. Since it can suppress or prevent that the load based on a pull acts on the other end part of a connection member, the fixation structure of the other end of a connection member and the handling of a connection member can be made easy.

  In the buckle device according to the second aspect of the present invention, the seating space of the seat can be prevented or suppressed by providing both the first buckle device body and the second buckle device body on the seat.

  In the buckle device according to the third aspect of the present invention, a load based on the tension when the first connecting means is pulled acts on the other end portion of the connection member without requiring a large design change compared to the conventional buckle device. This can be suppressed or prevented.

<Configuration of the present embodiment>
FIG. 1 shows a front view of a buckle device 10 according to an embodiment of the present invention, and FIG. 2 shows a side view of the buckle device 10.

  The buckle device 10 is provided corresponding to a seat that can seat an occupant on both sides in the left-right direction of the vehicle and can also be seated on the center side in the left-right direction, for example, a rear seat (not shown) of the vehicle. It has been. As shown in FIGS. 1 and 2, the buckle device 10 includes a first buckle 12 corresponding to the seating position on the center side in the left-right direction of the seat. The first buckle 12 includes a first anchor plate 14. The first anchor plate 14 is formed of, for example, a metal flat plate such as iron, and a seat cushion (a seat cushion) that constitutes a seat between the seating position of the occupant and the seating position on the center side in either the left or right direction of the seat. (Not shown) on the back side. An anchor bolt 16 passes through the base end side of the first anchor plate 14.

  The front end side of the anchor bolt 16 penetrating the first anchor plate 14 is fastened and fixed to the vehicle body (not shown) on the back side of the seat cushion. On the other hand, a slit hole penetrating in the thickness direction of the first anchor plate 14 is formed on the distal end side of the first anchor plate 14, and a connecting belt 18 as a first connecting means passes through the slit hole. is doing. The connecting belt 18 is a belt-like member having flexibility, and is formed of, for example, the same material as that of a webbing belt that is mounted on the body of an occupant with a vehicle seat belt device. The connecting belt 18 is folded back at a portion that has passed through the slit hole formed in the first anchor plate 14.

  The first buckle 12 includes a webbing protector 20 as a first covering member. Although the webbing protector 20 has elasticity, the webbing protector 20 is formed in a cylindrical shape with both ends opened by rubber or a synthetic resin material that is higher in rigidity than the connection belt 18, and is provided on the seat. The cylindrical webbing protector 20 has an opening shape whose longitudinal dimension is slightly larger than the width dimension of the connecting belt 18 and whose width direction (direction perpendicular to the longitudinal direction) is 2 times the thickness of the connecting belt 18. The rectangular shape is larger than double.

  From the base end side of the webbing protector 20 in the penetrating direction, it passes through the slit hole of the first anchor plate 14 and then passes through the slit portion formed in the seat cushion so as to penetrate in the thickness direction of the seat cushion. The front end side and the base end side in the longitudinal direction of the connecting belt 18 enter in a state where they overlap in the thickness direction. The connecting belt 18 that has entered the inside of the webbing protector 20 that has entered from the base end portion in the penetration direction of the webbing protector 20 passes through the inside of the webbing protector 20 and comes out of the front end in the penetration direction of the webbing protector 20.

  Further, the connecting belt 18 that has passed through the webbing protector 20 is stitched to the webbing protector 20, whereby the connecting belt 18 and the webbing protector 20 are integrated.

  On the other hand, a first buckle device main body 22 is provided on the side of the webbing protector 20 on the tip side. As shown in FIG. 2, a tongue insertion portion 24 is formed in the first buckle device main body 22. The tongue insertion portion 24 opens in a slit shape (a narrow rectangular shape) at the end of the first buckle device main body 22 opposite to the webbing protector 20, and a tongue plate (not shown) is inserted from the tongue insertion portion 24. The first buckle device main body 22 can be inserted inside.

  The tongue plate is provided on a webbing belt (not shown) that is hung around the body of an occupant seated on the seat at the center in the left-right direction of the seat. A tongue plate is inserted into the first buckle device main body 22 from the tongue insertion portion 24 in a state where the webbing belt is looped around the occupant's body, and a latch (not shown) provided inside the first buckle device main body 22 is a tongue. By engaging the plate and restricting the pulling of the tongue plate from the first buckle device main body 22, the webbing belt is attached to the occupant's body, and the occupant's body is restrained by the webbing belt.

  Further, a buckle switch (not shown) is provided inside the first buckle device main body 22. The buckle switch is an aspect of the detection means, and is an aspect of the predetermined member in the claims. The buckle switch is pressed by the tongue plate inserted from the tongue insertion portion 24 to be the first. It detects whether a tongue plate has been inserted into the first buckle device main body 22 by detecting the behavior of the slider that slides inside the buckle device main body 22 and the above-mentioned latch and the like. One end of a wire harness 26 as a connecting member is electrically connected to the buckle switch.

  The other end side of the wire harness 26 is pulled out from the end portion of the first buckle device main body 22 on the webbing protector 20 side to the outside of the first buckle device main body 22, and further, as shown in FIG. The webbing protector 20 is drawn from the end of the webbing protector 20 opposite to the first buckle device main body 22 to the outside of the webbing protector 20 through the inside.

  On the other hand, the buckle device 10 includes a second buckle 32 corresponding to the seating position on the left (or right) side of the seat in the left-right direction. The second buckle 32 includes a second anchor plate 34. The second anchor plate 34 is formed of, for example, a metal flat plate such as iron. The first anchor plate 34 is superposed on the base end side of the first anchor plate 14 in the thickness direction. It is fastened and fixed to the vehicle body (not shown) together with the plate 14.

  On the other hand, a slit hole penetrating in the thickness direction of the second anchor plate 34 is formed on the tip side of the second anchor plate 34, and a connecting belt 38 as a second connecting means passes through the slit hole. is doing. The connection belt 38 is a flexible belt-like member similar to the connection belt 18, and is folded back at a portion passing through the slit hole formed in the second anchor plate 34. The second buckle 32 includes a boot 40 as a second covering member.

  Although the boot 40 has elasticity, the boot 40 is formed in a cylindrical shape having both ends opened by rubber or synthetic resin material having higher rigidity than the webbing protector 20, and the front end is directed upward from the base in the penetrating direction. It stands on the seat. The cylindrical boot 40 has an opening shape whose longitudinal dimension is slightly larger than the width dimension of the connecting belt 38, and whose width dimension (direction perpendicular to the longitudinal direction) is twice the thickness of the connecting belt 38. Larger rectangular shape.

  From the base end side in the penetration direction of the boot 40, it passes through the slit hole of the second anchor plate 34, and is further turned back. Further, the front end side in the longitudinal direction of the connecting belt 38 that passes through the slit portion of the seat cushion through which the connecting belt 18 passes. And the base end side are overlapped in the thickness direction. The connecting belt 38 that has entered the inside of the boot 40 that has entered from the base end portion in the penetration direction of the boot 40 is stitched to the boot 40, whereby the connecting belt 38 and the boot 40 are integrated.

  On the other hand, a second buckle device body 42 having basically the same configuration as that of the first buckle device body 22 is fitted into the opening on the front end side of the boot 40. A slit-like tongue insertion portion (not shown) is formed at the end of the second buckle device main body 42 facing the upper side of the seat, and a tongue plate (not shown) is placed inside the second buckle device main body 42 from the tongue insertion portion. It can be inserted. The tongue plate inserted into the tongue insertion portion of the second buckle device main body 42 is provided on a webbing belt (not shown) that is hung around the body of an occupant seated on the seat on the left side (or right side) in the left-right direction of the seat. .

  Further, a buckle switch is also provided inside the second buckle device main body 42, and one end of the wire harness 46 is electrically connected to the buckle switch provided in the second buckle device main body 42. The other end side of the wire harness 46 is pulled out from the end of the second buckle device main body 42 on the boot 40 side to the outside of the second buckle device main body 42, and further inside the boot 40 as shown in FIG. 2. It passes through and is pulled out of the boot 40 from the end of the boot 40 opposite to the second buckle device main body 42. A connector 52 is coupled to the other end of the wire harness 46.

  The connector 52 is attached to a holding portion 54 formed on the side surface of the boot 40 on the first buckle device main body 22 side, and is held (fixed) to the boot 40 via the holding portion 54. One end of another wire harness (not shown) is electrically connected to the connector 52, and is electrically connected to a control device such as a battery (power source) or ECU mounted on the vehicle via the other wire harness. Furthermore, it is electrically connected to a warning lamp provided on the instrument panel of the vehicle.

  On the other hand, on the lower side of the holding portion 54 (the base end side of the boot 40), a holding portion 56 is formed in the boot 40 adjacent to the holding portion 54. A connector 58 is attached to the holding portion 56, and the connector 58 is held (fixed) to the boot 40 via the holding portion 54. The connector 58 is pulled out from the base end portion in the penetrating direction of the webbing protector 20 longer than the linear distance between the base end portion in the penetrating direction of the webbing protector 20 and the formation position of the holding portion 56 in the boot 40, and is further bent. The other end of the wire harness 26 is coupled.

  Further, one end of another wire harness (not shown) is electrically connected to the connector 58, and is electrically connected to a control device such as a battery (power source) or ECU mounted on the vehicle via the other wire harness. Furthermore, it is electrically connected to a warning lamp provided on the instrument panel of the vehicle.

  Further, as shown in FIG. 1, a tie wrap 60 as a restricting member is provided below the holding portion 56 (the base end side of the boot 40). The tie wrap 60 has a length from one end to the other end that is shorter than the length of the wire harness 26 between the penetrating base end portion of the webbing protector 20 and the holding portion 56, and one end of the tie wrap 60 is the longitudinal length of the webbing protector 20. It is fixed to the webbing protector 20 on the base end side with respect to the center in the direction. On the other hand, the other end of the tie wrap 60 is fixed to the boot 40 in the vicinity of the holding portion 56 on the lower side of the holding portion 56.

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

  When the occupant seated at the seating position on the center side in the left-right direction of the seat to which the buckle device 10 is applied, the first buckle device main body 22 is inserted in order to insert the tongue plate into the first buckle device main body 22 when the webbing belt is mounted. When pulled, the connecting belt 18 connected to the first buckle device main body 22 is pulled, and the wire harness 26 having one end connected to the buckle switch inside the first buckle device main body 22 is pulled.

  Here, in the buckle device 10, the portion where one end of the tie wrap 60 is fixed in the webbing protector 20 and the portion where the other end of the tie wrap 60 is fixed in the boot 40 are connected by the tie wrap 60. Further, the portion where one end of the tie wrap 60 is fixed in the webbing protector 20 and the portion where the other end of the tie wrap 60 is fixed in the boot 40 are not separated from each other. Therefore, as described above, even if the connecting belt 18 integrated with the webbing protector 20 is pulled by pulling the first buckle device main body 22, the portion where one end of the tie wrap 60 is fixed is longer than the length of the tie wrap 60. The tie wrap 60 is not separated from the portion where the other end of the tie wrap 60 is fixed.

  Thereby, even if the connecting belt 18 integrated with the webbing protector 20 is pulled by pulling the first buckle device main body 22, the distance between the longitudinal base end portion of the webbing protector 20 and the holding unit 56 is the length of the tie wrap 60. It is not separated beyond a certain distance determined by the height. Therefore, even if the first buckle device main body 22 is pulled, it is possible to prevent the wire harness 26 from being further pulled by eliminating the bending of the portion of the wire harness 26 that is pulled out from the base end portion in the penetration direction of the webbing protector 20. Or very effectively suppressed.

  Accordingly, it is possible to prevent or extremely effectively suppress a load based on the tension when the first buckle device main body 22 is pulled, so that the mechanical strength of the holding portion 56 for holding the connector 58 can be reduced. The structure of the connector 58 can be simplified, and the wire harness 26 does not have to be unnecessarily extended from the webbing protector 20 (that is, the structure of the connector 58 and the handling of the wire harness 26 can be easily performed). Become).

  In addition, since the occurrence of the malfunction in the connector 58 caused by pulling the first buckle device main body 22 can be prevented or effectively suppressed as described above, the first buckle 12 is made to stand on the seat like the second buckle 32. It is not necessary to have a configuration in which the seat is held in a state, so that a wide seating space can be secured.

  Further, according to the first and second aspects of the present invention, for example, the webbing protector 20 and the boot 40 are integrally formed so that the base end side of the webbing protector 20 forms the holding portion 56 in the boot 40. Separation from the position can be effectively prevented or suppressed. Of course, such a configuration may be adopted.

  However, in this embodiment, since the webbing protector 20 and the boot 40 are connected by the tie wrap 60, the configuration is basically the same as the conventional buckle device for the rear seat except that the tie wrap 60 is provided. . For this reason, the above-described excellent effect can be obtained by applying the present invention with a very simple design change.

  In the present embodiment, the connecting belt 18 and the webbing protector 20 are stitched and integrated, but for example, when the connecting belt 18 simply passes through the inside of the webbing protector 20, for example. The one end of the tie wrap 60 may be fixed to the connecting belt 18. Further, in the present embodiment, the connecting belt 38 and the boot 40 are integrally formed by stitching. However, for example, when the connecting belt 38 is simply passed through the boot 40, the tie wrap 60 is used. The other end may be fixed to the connecting belt 38.

  In the present embodiment, the other end of the wire harness 26 (that is, the connector 58) is fixed to the boot 40. However, other than the boot 40, for example, other parts such as a skeleton of the vehicle body or the seat. In the case where the other end of the wire harness 26 is fixed, the same effect can be obtained by connecting the fixing portion of the other end of the wire harness 26 and the base end side in the penetration direction of the webbing protector 20 with a tie wrap 60. Can be obtained.

  Furthermore, the buckle device 10 according to the present embodiment has a configuration including the first buckle 12 and the second buckle 32. However, from the viewpoint of the present invention described in claim 1, for example, as a configuration in which the other end of the wire harness 26 is fixed to another part such as a skeleton part of a vehicle body or a seat, the second buckle 32 is not provided. The buckle device 10 may be configured by the first buckle 12.

It is a front view which shows the outline of a structure of the buckle apparatus which concerns on one embodiment of this invention. It is a side view which shows the outline of a structure of the buckle apparatus which concerns on one embodiment of this invention.

Explanation of symbols

10 Buckle device 18 Connection belt (first connection means)
20 Webbing protector (first covering member)
22 1st buckle device body 26 Wire harness (connection member)
38 connecting belt (second connecting means)
40 Boot (second covering member)
42 Second buckle device body 60 Tie wrap (regulating member)

Claims (3)

A flexible first connecting means whose base end side is directly or indirectly connected to a vehicle body or a seat;
A first covering member formed in a cylindrical shape and through which the first connecting means passes;
A first buckle device main body provided on the seat and connected to a distal end side of the first connecting means at a side of a base end portion of the first covering member;
One end side passes through the inside of the first covering member and is connected to a predetermined member provided in the first buckle device main body, and the other end portion that has come out of the base end portion of the first covering member is the first. A connecting member that is fixed to a portion different from any of the buckle device main body, the first connecting means, and the first covering member, and that can supply power to the predetermined member by connecting the other end to a power source,
In addition, the connecting member is connected to the fixed portion at the other end of the connecting member on the base end side of the first covering member, and the separation of the connecting position from the fixed portion is restricted.
A buckle device characterized by that. A second buckle device body provided on a side of the first buckle device body;
A second connecting means in which a base end side is directly or indirectly connected to a vehicle body or a seat and a front end side is connected to the second buckle device main body;
A second covering member covering the second connecting means, holding the second connecting means standing on the seat, and having the other end of the connecting member fixed;
The buckle device according to claim 1, further comprising:   The one end is fixed to the first connecting means on the base end side of the first covering member, and includes a regulating member fixed in the vicinity of a portion to which the connecting member is fixed. The buckle device according to 2.

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