JPH0236752Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an improvement in a trunk-through structure, for example, in which the seat back of a rear seat of an automobile is made foldable.

[Technical background of the invention and its problems]

Of the seat devices installed in the passenger compartment of a car,
The front seat is a so-called reclining seat, and the angle of the seat back can be adjusted. On the other hand, in conventional rear seats, the angle is fixed because the seat back is directly attached to the vehicle body.

However, with this structure, it is very inconvenient to store elongated objects, for example, in a passenger compartment or a trunk space provided on the rear side.

Therefore, recently, a structure has been developed that allows the seat back of the rear seat to be folded forward, and if necessary, the seat back can be stacked on top of the seat cushion, making it possible to use more space in the passenger compartment or to communicate the passenger compartment with the trunk room. The so-called trunk-through structure began to be adopted.

To further explain this type of seat device, in FIG. 1, 1 is a front seat and 2 is a rear seat. The front seat 1 is a so-called reclining seat. The rear seat 2 comprises a seat cushion 3 and a seat back 4, as shown in FIG. 2, and the seat back 4 further comprises a rear back 5 and rear back sides 6, 6. The above rear bag 5 is foldable,
It has a so-called trunk-through structure, as shown by the two-dot chain line in the figure and as shown in Figure 3.
If necessary, it can be folded to the front side and placed on the seat cushion 3. However, the rear back sides 6, 6 are directly attached to the vehicle body and are fixed.

This rear seat 2 trunk through structure is the fifth
As shown in FIG. That is, a striker 7 projects from the upper end side of the rear backside 6, and is connected to a support member 6a that attaches and fixes the rear backside 6 to the vehicle body 8. Reference numeral 9 denotes a hinge bracket provided at the lower part of the rear bag 5 and on the vehicle body 8. 10 is the above rear bag 5
The rear bag 5 engages with the striker 7 at a predetermined position where it acts as a backrest, maintains this position, and rotates the rear bag 5 forward. They are starting to move away from it. Further, a pivot pin 11 is protruded from the side surface of the lower end of the rear bag 5, and is rotatably engaged with the pivot hole of the hinge bracket 9. Therefore, the rear bag 5 can rotate about the pivot pin 11 as a fulcrum.

In this way, the rear seat 2 has a trunk-through structure, but the assembly work has conventionally been troublesome. That is, the striker 7 and the hinge bracket 9 are attached to the vehicle body 8 completely separately,
The attachment of the catcher 10 and the pivot pin 11 that engage these are also not related to each other. This results in errors in attaching the rear backside 6 itself to the vehicle body 8, errors in attaching the striker 7 to the connecting member 6a, errors in attaching the hinge bracket 9, etc. In particular, since the connecting member 6a is attached to the rear deck constituting the vehicle body 8, and the striker 7 is attached to the floor, which is a separate part from the rear deck, the accumulation of errors becomes large. All of these errors are due to catcher 10.
Therefore, it was necessary to use a device with an extremely large latching force, which resulted in an increase in size and had a negative impact on cost.

[Purpose of invention]

The present invention was developed in view of the above circumstances, and its purpose is to provide a rear seat trunk-through structure that reduces installation errors of each component and facilitates assembly work. It is something to do.

[Summary of the idea]

That is, the present invention comprises a rear bag that is rotatable with respect to the seat cushion, and rear back sides that are located on both sides of this rear bag and are fixedly supported by the vehicle body. A pivot pin is provided at the rear back side, a striker is provided at the upper end of the rear back side, and a hinge bracket is provided at the lower end of the striker via a connecting member to integrate the striker and the hinge bracket, and the striker is used as a catch. This rear seat trunk-through structure is characterized by being detachable and having a pivot pin rotatably supported by the hinge bracket.

[Example of idea]

Hereinafter, one embodiment of the present invention will be described based on the drawings. However, since the seat device may be the same as that previously explained in FIGS. 1 to 3, the same figure will be applied and the explanation will be omitted. The trunk-through structure is as shown in FIG. That is, numeral 5 in the figure is a rear bag, and the rear bag 5 has a catch 10a on its upper side and a pivot pin 11 on its lower side. These positions may be the same as in the conventional case, but the catch 10a can be selected to be smaller than the conventional one for reasons described later. Rear back sides 6 are located on both sides of the rear back 5 and are fixedly attached to the vehicle body 8. A connecting member 12 is embedded within the rear backside 6, and a striker 7 is attached and fixed to the upper end of the connecting member 12, and a hinge bracket 9a is attached to the lower end of the connecting member 12. From this, the striker 7 and hinge bracket 9
It will be integrated with a through the connecting member 12. And the vehicle body mounting hole 7 provided in the striker 7
The holes a and 7a are long holes, and the mounting position can be finely adjusted in the vertical direction. The hinge bracket 9a is attached to the vehicle body 8 with a fixing bolt. The striker 7 is removably engaged with the catcher 10a, and the hinge bracket 9a rotatably supports the pivot pin 11.

Thus, although the trunk through structure configured in this manner is functionally the same as the conventional structure, assembly work is facilitated. That is,
The mounting accuracy of the striker 7 and the hinge bracket 9a can be easily ensured by integrating them, and mounting errors between the catcher 10a and the pivot pin 11 in the rear bag 5 can be absorbed. Therefore, the error is reduced, and the catch 10a
The latch force is also small, resulting in miniaturization.

[Effect of idea]

As explained above, according to the present invention, assembly workability is improved by reducing installation errors, and the catcher is made smaller, contributing to cost reduction.

[Brief explanation of the drawing]

FIGS. 1 and 3 are side views of the seat device in different states, FIG. 2 is a perspective view of the seat device, and FIG. 4 is a rear view showing an embodiment of the present invention with the main parts of the rear seat partially omitted. Figures 5 and 6
The figures show a conventional example of the present invention, with FIG. 5 being a rear view with the main parts of the rear seat partially omitted, and FIG. 6 being a side view thereof. 3... Seat cushion, 4... Seat back, 2... Rear seat, 5... Rear back, 8...
... Vehicle body, 6 ... Rear backside, 10a ... Catcher, 11 ... Pivot pin, 7 ... Striker, 12 ... Connection member, 9a ... Hinge bracket.

Claims (1)

[Scope of utility model registration request] In a rear seat composed of a seat cushion and a seat back, the seat back is composed of a rear back that is rotatable relative to the seat cushion and rear back sides that are located on both sides of this rear back and are fixedly supported on the vehicle body. A catch provided on the upper end side of the rear back, a pivot pin protruding from the lower end side, a striker provided on the upper end side of the rear back side and detachable from the catch, and a connecting member connected to the striker. A trunk-through structure for a rear seat comprising a hinge bracket provided at a lower end side of a rear bag, rotatably supporting the pivot pin, and attached to a vehicle body.