JPH0674475U - Rear seat jump-up prevention structure - Google Patents

Abstract

(57) [Abstract] [Purpose] The number of parts and the number of mounting steps can be reduced to reduce the cost, and the rotation of the base member and the anchor plate with respect to the vehicle body floor can be prevented with a simple configuration. [Structure] An anchor plate 40 of a seat belt is provided with one of a first protrusion 51 and a first engaged portion 44, and the other is provided with a base member 50 so as to fit the two together.
One of the second protruding portion 52 and the second engaged portion 12 is provided on the vehicle body floor 10 side, the other is provided on the base member 50, and the two are fitted to each other, by so-called one-point fastening with one bolt, The anchor plate 40 is attached to the vehicle body floor 10 via the base member 50.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 In order to secure a luggage space in the passenger compartment, the present invention installs a seat cushion so that the seat cushion can be jumped forward with respect to the vehicle body floor, and a seat belt anchor plate is used as a base on the vehicle body floor side below the rear portion of the seat cushion. The present invention relates to a jump-up prevention structure for a rear seat, in which a belt main body, which is bolted via a member and connected to the anchor plate, is pulled out from below the seat cushion rear part to the seat surface side along the rear part.

[0002]

[Prior art]

 In wagon vehicles and the like, the seat cushion of the rear seats is installed so as to be able to jump forward with respect to the vehicle body floor in order to secure a luggage space in the passenger compartment. On the other hand, at the time of normal seating, from the viewpoint of safety, it is necessary to prevent the seat cushion from jumping up. Therefore, a mechanism for preventing the jumping up is provided on the vehicle body floor side.

Conventionally, as a jump-up prevention structure for this type of rear seat, there is, for example, one as shown in FIG. That is, the pair of anchor plates 1, 1 connecting the ends of the seat belt are fixed to the vehicle body floor 3 via the base member 2 by the bolts 4, 4, respectively. Although not shown, the belt connected to each of the anchor plates 1 and 1 is pulled out from the lower rear portion of the seat cushion to the seating surface side along the rear portion.

A rear frame (not shown) of a seat cushion that is displaced forward by the tension applied to the belt at one end of a base member 2 which is fixed to the vehicle body floor 3 with two bolts 4 and 4 at two points. On the other hand, a hook portion 2a that can be engaged is provided. Therefore, when an impact load or the like is input, tension is applied to the belt, and the rear frame of the seat cushion, which is stretched by the belt and displaced forward, engages with the hook portion 2a of the base member 2. Therefore, the seat cushion does not jump up forward carelessly.

[0005]

[Problems to be solved by the device]

 However, in such a conventional rear seat jumping-up prevention structure, the base member 2 is fixed to the vehicle body floor 3 by the two bolts 4 and 4 by the two-point stopper, which makes the mounting operation troublesome. However, there was a problem that it took time and increased costs.

Further, when bolting, the anchor plates 1 and 1 easily rotate with respect to the base member 2, so that the mounting work is troublesome, and even after the mounting, when the belt is tensioned, the anchor plates are locked. The plate 1 may unnecessarily rotate and the seat cushion may not be displaced forward.

In such a case, it may be considered that the base member 2 is fixed to the vehicle body floor 3 by one-point stop with one bolt. According to this, although the number of parts can be reduced, not only the rotation of each anchor plate 1, 1 with respect to the base member 2 described above but also the problem that the base member 2 also newly rotates with respect to the vehicle floor 3 occurs. I will end up.

It is also conceivable to dispose the base member 2 and provide a hook portion 2a for preventing jumping up on the anchor plate 1 itself and bolt the anchor plate 1 directly to the vehicle body floor 3. There was a problem that it became structurally fragile and its strength was insufficient.

The present invention has been made by paying attention to such a conventional problem, and reduces the number of parts and the number of mounting steps to reduce the cost, and at the same time, has a simple structure and is a base for a vehicle body floor. It is intended to provide prevention of rear seat jump-up that can prevent rotation of members and anchor plates.

[0010]

[Means for Solving the Problems]

 The gist of achieving the above object is to secure the luggage space in the passenger compartment by installing the seat cushion (20) so that the seat cushion (20) can be jumped forward with respect to the vehicle body floor (10). 20) A belt main body (70) connected to the anchor plate (40) by bolting an anchor plate (40) of a seat belt to the vehicle body floor (10) side below the rear portion of the seat via a base member (50). In a rear seat jump-up prevention structure in which the seat cushion (20) is pulled out from below the rear part of the seat cushion to the seat surface side along the rear part, and the terminal of the belt body (70) is connected to the anchor plate (40). Guide holes (42, 42) and one of the first protrusion (51) and the first engaged portion (44) are provided, and the base member (50) is provided with the base member (50). The hook frame (53) (53) engageable with the rear frame (23) of the seat cushion (20) that is displaced forward by the tension applied to the bolt main body (70), and the anchor plate (40) The first protrusion (51) and the first protrusion (51) that fit into one of the first protrusion (51) and the first engaged portion (44) to prevent the anchor plate (40) from rotating with respect to the base member (50). While the other of the engaged parts (44) is provided, the other of the engaged parts (44) is fitted to one of the second projecting part (52) and the second engaged part (12) provided on the vehicle body floor (10) side to provide a vehicle body floor. Rear seat jumping-up prevention structure characterized in that the other of the second protrusion (52) and the second engaged portion (12) for preventing the rotation of the base member (50) with respect to the side (10) is provided. Exist in.

[0011]

[Action]

 The anchor plate (40) of the seat belt is bolted to the vehicle body floor (10) via the base member (50). When bolting, first, one of the first protrusion (51) and the first engaged portion (44) provided on the anchor plate (40) is provided on the base member (50) correspondingly. And the anchor plate (40) so as not to rotate with respect to the base member (50).

Next, one of the second protruding portion (52) and the second engaged portion (12) provided on the base member (50) with the anchor plate (40) assembled is made to correspond to this. The base member (50) and the anchor plate (40) are positioned so as not to rotate with respect to the vehicle body floor (10) by being fitted to the other provided on the vehicle body floor (10) side. Then, the base member (50) and the anchor plate (40) assembled together are bolted to the vehicle body floor (10) side.

As described above, due to the fitting relationship among the base member (50), the anchor plate (40) and the vehicle body floor (10), the vehicle body floor (10 The anchor plate (40) can be attached to the vehicle body floor (10) through the base member (50) without causing a problem that the base member (50) or the like rotates with respect to (1).

In addition to the protrusions (51, 52) or the engaged parts (12, 44), the base member (50) has a seat cushion (20) that is displaced forward by tension applied to the belt body (70). ) Hook portions (53) (53) engageable with the rear frame (23) are provided. When an impact load or the like is input, tension is applied to the belt main body (70), which pulls the belt main body (70), and the rear frame (23) of the seat cushion (20) that is displaced forward moves. Since it engages with the hook portion (53) of the base member (50), the seat cushion (20) is prevented from jumping forward.

[0015]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the present invention. In wagon vehicles, the rear seats are installed so that they can be folded in order to secure a luggage space in the passenger compartment. That is, as shown in FIG. 3, the seat cushion 20 of the rear seat is installed so as to be able to jump forward with respect to the vehicle body floor 10. Although not shown, the seat back of the rear seat is provided so as to be tilted forward into an empty space of the vehicle body floor 10 caused by the seat cushion 20 jumping up.

As shown in FIG. 3, the front portion 21 of the seat cushion 20 is supported rotatably in the front-rear direction with respect to the vehicle body floor 10 via a hinge bracket 30. The leg portion 31 of the hinge bracket 30 has a turning end 32, and the seat cushion 20 is supported so as to be able to jump forward with the turning end 32 as the center of rotation.

On the other hand, as shown in FIG. 1, below the rear portion 22 of the seat cushion 20 in the normal seating position, a mechanism for preventing the seat cushion 20 from jumping up when seated is provided from the viewpoint of safety. It is shining. Such a mechanism is composed of a base member 50 fixed to the vehicle body floor 10 with a single bolt 60, an anchor plate 40, and the like.

The anchor plate 40 is fixed to the vehicle body floor 10 via the base member 50. As shown in FIG. 2, the anchor portion 40 a is in contact with the base member 50, and the anchor portion 40 has both ends of the anchor portion 40 a. The belt fastening portions 41 and 41 are bent upward and are provided with guide holes 42 for connecting the ends of the belt main body 70 that constitutes the seat belt.

A fixing round hole 43 into which the bolt 60 is fitted is formed in a substantially central portion of the fixing portion 40 a of the anchor plate 40, and a base member 50 described later is provided beside the fixing round hole 43. The first engaged portion 44, which is a square hole corresponding to the first protruding portion 51, is provided. Further, as shown in FIG. 4, the belt main body 70 connected to the belt fastening portion 41 is pulled out from below the rear portion 22 of the seat cushion 20 to the seat surface side along the rear portion 22.

The base member 50 functions as a reinforcing member for the vehicle body floor 10 that bolts the anchor plate 40, and also as a locking member that prevents the rear portion 22 of the seat cushion 20 from jumping up. More specifically, as shown in FIG. 2, one end of the base member 50 can be engaged with the rear frame 23 (see FIG. 4) of the seat cushion 20 that is displaced forward by the tension applied to the belt body 70. The hook portion 53 is provided.

On the other end side of the base member 50, a fastening round hole 54 that matches the fastening round hole 43 of the anchor plate 40 is formed, and next to the fastening round hole 54, the anchor plate 40 is provided. The first protruding portion 51, which is a cut and raised portion that fits into the first engaged portion 44, is provided so as to project upward. Due to the fitting relationship between the first projecting portion 51 and the first engaged portion 44, when the bolt 60 is fitted into the anchoring round holes 43 and 54 of the anchor plate 40 and the base member 50, the base member 50 On the other hand, the anchor plate 40 is non-rotatably bound.

In addition, at a substantially central portion of the base member 50, a second engaged portion 12 that is an emboss recessed in the vehicle body floor 10 is fitted to prevent rotation of the base member 50 with respect to the vehicle body floor 10. Two protrusions 52 are provided. The second protrusion 52, like the first protrusion 51, is simply cut and raised, but the second protrusion 52 is provided so as to face downward toward the vehicle body floor 10 side. As shown in FIG. 1, the vehicle body floor 10 is provided with a pilot hole 11 for a bolt 60 for fixing the anchor plate 40 and the base member 50.

Next, the operation will be described. As shown in FIG. 1, the anchor plate 40 is bolted to the vehicle body floor 10 via the base member 50. When bolting, first, the first projection 51 provided on the base member 50 is fitted to the first engaged portion 44 provided on the anchor plate 40, and the anchor plate 40 is attached to the base member 50. Assemble so that it does not rotate.

While fitting one bolt 60 into each of the fastening round holes 43 and 54 of the base member 50 and the anchor plate 40 which are combined with each other, next, the second protrusion provided on the base member 50. 52 is fitted to the second engaged portion 12 provided on the vehicle body floor 10 side, and the base member 50 and the anchor plate 40 are positioned so as not to rotate with respect to the vehicle body floor 10. Then, the tip of the bolt 60 is screwed into the pilot hole 11 of the vehicle body floor 10, and the base member 50 and the anchor plate 40 that are combined with each other are bolted to the vehicle body floor 10.

Due to the mutual fitting relationship among the base member 50, the anchor plate 40, and the vehicle body floor 10 as described above, the base member 50 and the like with respect to the vehicle body floor 10 are rotated even by so-called one-point fixing with one bolt. There is no problem of doing. As a result, the number of parts can be reduced and the number of mounting steps can be reduced as compared with the conventional two-point stop using two bolts.

As shown in FIG. 4, when an impact load or the like is input after the base member 50 and the anchor plate 40 are attached, the seated person is relatively seated with respect to the seat cushion 20 by the force of inertia. It moves forward, which puts tension on the belt body 70.

When the belt body 70 is pulled in the direction of arrow T, the striker 23 a of the rear frame 23 of the seat cushion 20 that moves forward moves in the direction of arrow F and engages with the hook portion 53 of the base member 50. To do. Therefore, the seat cushion 20 is prevented from jumping forward.

In the above embodiment, the anchor plate is provided with the first engaged portion and the base member is provided with the first protruding portion. However, as an opposite aspect, the anchor plate is provided with the first protruding portion. On the other hand, the first engaged portion may be provided on the base member. Similarly, in the above-mentioned embodiment, while the second engaged portion is provided on the vehicle body floor and the second protruding portion is provided on the base member, the second protruding portion is provided on the vehicle body floor in the opposite mode. The second engaged portion may be provided on the base member.

[0029]

[Effect of device]

 According to the rear seat jump-up prevention structure of the present invention, the anchor plate of the seat belt is provided with one of the first protrusion and the first engaged portion, and the base member is provided with the other so as to be fitted with each other. On the other hand, one of the second protrusion and the second engaged portion is provided on the floor side of the vehicle body, and the other is provided on the base member so that they are fitted together. The anchor plate can be attached to the vehicle body floor through the base member without the base member rotating with respect to the vehicle body floor. Therefore, the number of parts and the number of mounting steps can be reduced to reduce the cost, and the rotation of the base member and the anchor plate with respect to the vehicle body floor can be prevented with a simple structure.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a rear seat jump-up prevention structure according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a state in which the anchor plate and the base member that constitute the rear seat jump-up prevention structure according to the embodiment of the present invention are bolted.

FIG. 3 is a side view showing a state in which a seat cushion is supported on a vehicle body floor so as to be capable of jumping up.

FIG. 4 is an enlarged view showing a rear seat jump-up prevention structure according to an embodiment of the present invention.

FIG. 5 is a perspective view showing a conventional rear seat jump-up prevention structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Vehicle body floor 12 ... 2nd engaged part 20 ... Seat cushion 23 ... Rear frame 40 ... Anchor plate 42 ... Guide hole 43 ... Fastening round hole 44 ... 1st engaged part 50 ... Base member 51 ... 1st Projection portion 52 ... Second projection portion 53 ... Hook portion 60 ... Bolt

Claims (1)

[Scope of utility model registration request] 1. To secure a luggage space in a passenger compartment, a seat cushion is installed so as to be able to jump forward with respect to a vehicle body floor, and an anchor plate for a seat belt is provided on a vehicle body floor side below a rear portion of the seat cushion. In a rear seat jump-up prevention structure in which a belt main body, which is bolted via a base member and connected to the anchor plate, is pulled out from a lower rear portion of a seat cushion to a seat surface side along the rear portion, wherein the anchor plate is A rear part of the seat cushion that is provided with a guide hole for connecting the end of the belt body and one of the first protrusion and the first engaged part, and that is displaced forward by the tension applied to the belt body on the base member. For the frame,
A first protrusion and a first protrusion that prevent the rotation of the anchor plate with respect to the base member by providing an engageable hook portion and fitting with one of the first protrusion and the first engaged portion of the anchor plate. While providing the other of the engaged parts, the second protruding part provided on the vehicle body floor side and one of the second engaged parts to prevent the base member from rotating relative to the vehicle body floor side. And a rear seat jump-up prevention structure, characterized in that the other of the second engaged parts is provided.