JPH0528764U - Seat belt coupling device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Easily install the seat belt without affecting the seat width, center console height, etc., and eliminate the feeling of protrusion of the seat belt connecting member into the passenger compartment. At the same time, it is possible to obtain a wearing state of the seat belt without any discomfort. One of a pair of connecting members that includes an anchor member 11 that is supported on one side of a seat 3 and that can move up and down, and a drive motor that moves the anchor member up and down through an interlocking mechanism, and that engages and disengages a seat belt. 15 is supported by the anchor member, and one of the connecting members can be changed between an upper belt connecting position and a lower belt attaching position via the anchor member by forward and reverse rotation of the drive motor.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a seat belt connecting device for connecting a tongue of a three-point seat belt in a front seat of an automobile to a buckle on a side of a center console box, for example.

[0002]

[Prior Art]

 Examples of conventional seatbelt coupling devices of this type are shown in, for example, FIGS. 7 and 8 (similar structure, May 31, 1983, New Edition Automotive Engineering Handbook, 7th edition, published by Japan Society of Automotive Engineers). , [Occupant restraint device] pages 1-129).

That is, in this seat belt coupling device, the lower end of the anchor 101 is attached to an upper rail (not shown) of a seat slide mechanism that slidably supports the seat cushion 103, and a buckle 105 is provided at the upper end of the anchor 101. It Then, by inserting the tongue 109 of the three-point seat belt 107 into the buckle 105, the seat belt 107 can be mounted as shown in FIG. To remove the tongue 109 from the buckle 105, a release button (not shown) of the buckle 105 may be operated.

[0004]

[Problems to be solved by the device]

 By the way, the buckle 105 of the seat belt coupling device as described above is located in the narrow space 113 between the seat cushion 103 and the center console 111, and when the tongue 109 is inserted into the buckle 105 or the release button is operated. There is a risk that the occupant's hand 115 may hit the center console 111 when carrying out the operation and the like, which may cause considerable trouble in the attaching / detaching operation.

On the other hand, by reducing the width of the seat cushion 103 or the width and height of the center console 111, the space 113 can be increased to improve the above problem.

However, the width of the seat cushion 103 cannot be made too narrow in order to maintain the sitting comfort. Further, the width and height of the center console 111 cannot be made too small in order to secure the volume.

On the other hand, by making the position of the buckle 105 project higher than the height of the center console 111, it is possible to easily attach and detach the seat belt. However, in view of the limited vehicle interior space, it is not preferable to keep the buckle 105 protruding at all times, and there is a risk that the opening / closing operation of the center console 111 may be hindered.

[0008] Therefore, an object of the present invention is to provide a seat belt connecting device that can facilitate the seat belt wearing operation while not reducing the height of the seat belt connecting member.

[0009]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention comprises an anchor member supported on one side of a seat and movable up and down, and a drive motor for moving the anchor member up and down through an interlocking mechanism. One of a pair of connecting members to be detached is supported by the anchor member, and one of the connecting members is changed to an upper belt connecting position and a lower belt attaching position via the anchor member by the forward / reverse rotation of the drive motor. It was made possible.

[0010]

[Action]

 By rotating the drive motor forward or backward, the seat belt connecting member can be brought to the upper belt connecting position via the anchor member, and the seat belt can be connected at a high position. Further, by rotating the drive motor in the reverse direction or in the forward direction, the connecting member can be brought to the lower belt mounting position, and the position of the connecting member can be lowered.

[0011]

【Example】

 FIG. 1 shows a seat belt connecting device 1 according to an embodiment of the present invention applied to a driver's seat 3 in the front of a vehicle.

That is, the seat belt coupling device 1 includes the seat slide mechanism 7 on the left side (right side) of the driver's seat 3 in the right-hand drive vehicle (left-hand drive vehicle), that is, on the center console 5 side (see FIG. 5). It is provided on the upper rail 9.

The seat belt connecting device 1 includes an anchor arm 11 as an anchor member and a rotation lever 13. The anchor arm 11 is integrally provided with a buckle 15, and the buckle 15 constitutes one of a pair of connecting members for engaging and disengaging the seat belt 41 (FIG. 5). The lower end of the anchor arm 11 is rotatably supported by the intermediate portion of the rotary lever 13 via a support pin 17. A spring 19 is attached to the support pin 17, one arm of the spring 19 engages with the anchor arm 11, and the other arm engages with the rotary lever 13 to support the anchor arm 11 in FIG. It always urges counterclockwise around. As shown in FIG. 2, the rotary lever 13 is rotatably supported by the upper rail 9 via a lever support pin 21, an anchor recess 23 is provided at the other end, and an anchor pin 25 protruding from the upper rail 9. Is adapted to engage with. In this way, the anchor arm 11 as an anchor member is supported by the upper rail 9 of the seat slide mechanism 7 on one side of the seat cushion 35 and is configured to be movable up and down.

Further, a driven sprocket 27 is attached to the lever support pin 21 of the rotary lever 13 on the opposite side of the upper rail 9 with the upper rail 9 interposed therebetween, and a driven motor 29 of the drive motor 29 attached to the upper rail 9 as well. A chain 33 is wound around the drive sprocket 31. Therefore, the drive motor 29 is configured to move the anchor arm 11 up and down via the interlocking mechanism. The forward rotation of the drive motor 29 is performed by detecting that the tongue 43 of the seat belt 41 is inserted into the bag 15, and the reverse rotation is performed by operating the release button 15a of the buckle 15. .

On the other hand, as shown in FIGS. 4 and 5, the seat cushion 35 of the driver's seat 3 is formed with a protrusion 39 projecting toward the center console 5 side so as to control the buckling of the buckle 15. ing.

Next, the operation will be described.

Now, it is assumed that the rotary lever 13 is rotating upward, and the anchor arm 11 and the buckle 15 are in the upper order (a) in FIG. From this state (a), when the anchor arm 11 is rotated around the support pin 17 to bring the buckle 15 to the state (b), the buckle 15 projects above the convex portion 39 of the seat cushion 35, and the upper belt connecting position. Becomes The tongue 43 of the seat belt 41 is connected to the buckle 15. When the buckle 15 is at the position (b) in FIG. 1, it is higher than the center console 5 as shown by the two-dot chain line in FIG. Since it projects, the connecting operation is extremely easy.

When the connection of the tongue 43 to the buckle 15 is detected, the drive motor 29 rotates in the normal direction, and the rotary lever 13 is rotated through the drive sprocket 31, the chain 33, the driven sprocket 27, and the lever support pin 21 shown in FIG. Rotates as indicated by arrow A in FIG. 1, and the anchor recess 23 engages with the anchor pin 25 to be positioned. By this rotation of the rotating lever 13, the buckle 15 descends together with the anchor arm 11, and the state shown in FIG. At this time, the anchor arm 11 is biased in the direction opposite to the arrow A by the bias of the spring 19, so that the buckle 15 does not fall to the seat back 45 side. Further, the buckle 15 comes into contact with the convex portion 39 of the seat cushion 35 and comes into the state of (C) while slidingly contacting. In the state of (c), the acting force of the spring 19 is almost zero. In this way, when the seat belt is worn, the buckle 15 is lowered to the lower belt wearing position, the belt is worn without any discomfort, and the buckle 15 can be prevented from protruding into the passenger compartment. Further, there is no problem in the opening / closing operation of the center console 5.

The force acting on the anchor arm 11 from the seat belt 41 via the tongue 43 and the buckle 15 is received by the rotary lever 13 via the support pin 17, and further the seat slide is carried out via the lever support pin 21 and the anchor pin 25. It is received by the upper rail 9 of the mechanism 7 and transmitted from the lower rail 47 to the vehicle body floor 49.

When the seat belt 41 is unfastened, if the release button 15a of the buckle 15 is pressed, the drive mode 29 is reversed, the rotary lever 13 rotates as shown by arrow B in FIG. 1, and the occupant collapses the buckle 15. If you keep pressing, it will rise from the state of (c) to the state of (b). Therefore, the tongue 43 of the seat belt 41 can be removed at the upper position (b), and the removal becomes extremely easy.

Next, when the occupant's hand is released from the buckle 15, the buckle 15 falls down on the seat cushion 35 as shown in (a) by the light biasing force of the spring 19 and is in a standby state for the next wearing.

When the buckle 15 is raised, not only the mechanism for reversing the motor by pressing the release button 15a, but another operation button for reversing the motor is provided on the buckle 15 and the button is pressed. It is also possible to reverse the drive motor 29 and raise the buckle 15. In this case, since the tongue 43 can be kept engaged when the buckle 15 is raised, the winding force of the winding spring of the seat belt retractor overcomes the biasing force of the spring 19 and the occupant does not. Even if the buckle 15 is not being held, the buckle 15 will rise from (C) to (B). Further, the button for reversing the drive motor 29 is not limited to the button provided on the buckle 15 and may be provided on the center console 5. Both forward and reverse rotations of the drive motor 29 can be performed by operating buttons provided on the center console 5.

FIG. 6 shows another embodiment. The same components as those in the above embodiment are designated by the same reference numerals for description. The anchor arm 11 including the buckle 15 is attached to the lifting block 51 via a support pin 17. Therefore, although the anchor arm 11 is rotatable with respect to the elevating block 51, a frictional force acts between the relative rotating portions of the anchor arm 11 and the elevating block 51, and the occupant must apply some force to the buckle 15. For example, the anchor arm 11 holds the same position with respect to the elevating block 51. The anchor arm 11 may be fixed to the lifting block 51.

The elevating block 51 is screwed and supported by a vertical screw shaft 53, and the screw shaft 53 is rotatably supported by a frame 55. The frame 55 has flanges 57 and 59 and a motor mounting portion 61, and is fastened and fixed to the upper rail 9 by the bolts 63 at the flanges 57 and 59. The lower end of the screw shaft 53 projects below the frame 55, and the worm wheel 65 is fixed to it. The drive motor 29 is fixed to the motor mounting portion 61 of the frame 55, and the worm 69 fixed to the drive shaft 67 is meshed with the worm wheel 65.

When the drive motor 29 is normally or reversely rotated by the same operation as in the above embodiment, the screw shaft 53 is rotated via the drive shaft 67, the worm 69 and the worm wheel 65, and the two-dot chain line is shown. Change the position between the upper belt connecting position (b) and the lower belt mounting position (c).

When a load acts on the buckle 15, it is transmitted to the screw shaft 53 via the anchor arm 11 and the elevating block 51, and is transmitted from the screw shaft 53 to the upper rail 9 via the frame 55. Therefore, the screwing of the lifting block 51 and the screw shaft 53 needs to be sufficient to support the load of the seat belt.

Further, in this embodiment as well, by raising and lowering the buckle 15, it is possible to obtain substantially the same operational effects as the above-mentioned embodiment. Further, in this embodiment, it is not necessary to provide a special concave portion or convex portion on the seat cushion 35, and it is easy to maintain the posture of the buckle 15.

The invention is not limited to the above embodiment. For example, the anchor arm is not limited to the buckle but can be a tongue. The seat can be applied to the front passenger seat or the rear seat.

[0029]

[Effect of the device]

 As is apparent from the above, according to the configuration of the present invention, one of the seat belt connecting members can be changed between the lower belt mounting position and the upper belt connecting position via the anchor member by the forward and reverse rotation of the drive motor. The seat belt can be worn easily without affecting the seat width and the height of the console, the seat belt connecting member can be prevented from protruding into the passenger compartment, and the seat belt can be worn without any discomfort. Can be done.

[Brief description of drawings]

FIG. 1 is a schematic side view of a driver's seat to which a seat belt coupling device according to an embodiment of the present invention is applied.

FIG. 2 is a perspective view showing a relationship between a rotary lever and an anchor pin.

FIG. 3 is an explanatory diagram of a relationship with a drive motor.

FIG. 4 is a plan view of relevant parts showing the relationship between the buckle and the seat cushion.

FIG. 5 is a front view showing the relationship between the buckle, the seat cushion, and the center console.

FIG. 6 is a side view according to another embodiment.

FIG. 7 is an explanatory diagram according to a conventional example.

FIG. 8 is an explanatory diagram of a main part according to a conventional example.

[Explanation of symbols]

 1 Seat Belt Connecting Device 3 Driver's Seat 7 Seat Slide Mechanism 9 Upper Rail 11 Anchor Arm (Anchor Member) 15 Buckle (One of Seat Belt Connecting Members) 29 Drive Motor

Claims (1)

[Scope of utility model registration request] 1. One of a pair of connecting members that includes an anchor member that is supported on one side of a seat and can move up and down, and a drive motor that moves the anchor member up and down through an interlocking mechanism, and that engages and disengages a seat belt. Is supported by the anchor member, and one of the connecting members can be changed between an upper belt connecting position and a lower belt attaching position via the anchor member by forward and reverse rotation of the drive motor. Seat belt coupling device.