JP2001063431A - Seat attaching structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat attaching structure capable of easily changing a seat position in a bus or the like, excellent in workability at the time of attachment and detachment therefor, and having sufficient attaching strength. SOLUTION: An attaching bolt 30 is inserted from a bolt hole 19 to be tightened to a screw part 28B formed in an upper end part 28A of the attachment 28, while an attachment 28 of which a lower end part 28C is projected from a locking piece 20A is locked to the locking piece 20A of a sill 20 and while a side face of a holding part 18B is made to closely contact with the attachment 28 and the locking piece 20A, and the locking piece 20A is thereby sandwiched between the attachment 28 and the holding part 18B to fix a seat onto a floor face.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat mounting structure, and more particularly, to a seat mounting structure installed in a vehicle such as a bus.

[0002]

2. Description of the Related Art Conventionally, as a structure for mounting a seat in a bus, a mounting hole is formed at a predetermined position on a floor surface, and an oval mounting at a lower end of a seat leg 50 as shown in FIG. The metal fitting 52 is brought into contact with the floor surface, and in this state, the tapping bolt 54 is inserted through the screw hole 52A of the mounting metal fitting 52.
And the sheet 56 is fixed by tightening it into a mounting hole on the floor surface.

[0003] Also, JP-A-4-58419 discloses that
Attach a leg plate to the lower end of the seat leg, place this leg plate on the floor molding, fit the attaching bracket between this molding and the leg plate, and use a bolt to make the molding and the leg plate adhere to each other. An attachment structure for tightening and fixing is disclosed.

[0004]

However, in the mounting structure shown in FIG. 4 described above, since the mounting holes are perforated perpendicular to the floor, if the position of the seat 56 is changed, for example, a new mounting is required. It was necessary to take a measure such as drilling a hole in the floor and closing the mounting hole before the tapping bolt 54 was screwed in, and it was virtually impossible to change the seat position. Further, when the tapping bolt 54 is tightened vertically to the floor surface,
The armrests and seating surface of the hamper obstruct the workability.

In the mounting structure described in Japanese Patent Application Laid-Open No. 4-58419, the strength of an attaching bracket, which is a main component of the mounting structure, is insufficient. For example, when a large load is applied to a seat belt due to a collision or the like. In this case, an upward force is applied to the attaching bracket via the seat, and as a result, the attaching bracket may be deformed and the seat may come off the vehicle body. In particular, a large force is likely to be generated in the rear seat leg. Further, since the sill supporting the seat leg supports the seat leg in a cantilever state, there is a problem that when a load is applied to the seat, the supporting portion of the sill is easily bent and deformed. Was.

The present invention has been proposed in order to cope with such circumstances, and it is possible to easily change the position of a seat in a bus or the like, as well as to attach and remove the seat.
It is an object of the present invention to provide a seat mounting structure that is excellent in workability at the time of removal and has sufficient mounting strength.

[0007]

(1) In order to achieve the above object, a seat attachment member is provided at a lower end of a seat leg for allowing a seat to stand upright on a floor in a vehicle. It has at least a supporting portion for supporting the lower end of the leg, and a holding portion continuous downward from the supporting portion, and a bolt hole through which a mounting bolt is inserted is drilled in the holding portion, and a locking piece is provided. The sill has a sill formed around the floor surface in the vehicle, and a locking piece of the sill locks an attachment whose lower end protrudes from the locking piece. The fixing piece of the sill is formed by inserting the mounting bolt using the bolt hole and tightening the screw to the screw formed at the upper end of the attachment while being in close contact with the stopper. Formed by securing the sheet to the floor surface by sandwiching be interposed between the Attachment and the sandwiching portion.

(2) In the above item (1), the sill is formed in a substantially L-shaped or J-shaped cross section.

(3) In the above item (1) or (2), the floor surface of the passage in the vehicle is formed lower than the floor surface of the seat, and the sill is provided between the floor surface of the passage and the seat. It is provided on the vertical plane formed between them.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a seat mounting structure according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic side view showing a main part of a seat mounting structure according to one embodiment, and FIG. 2 is a longitudinal sectional view showing a relationship between a seat leg for supporting a seat on a floor and a sill provided in a vehicle. It is. As shown in these drawings, the seat 10 to which the seat mounting structure of the present embodiment is applied includes four standing front, rear, left and right seat legs 12 and a seat leg 1.
2, a seating surface 14 made of a cushion material or the like
And the like.

As shown in FIG. 1, a portion below the front seat leg 12A and a rear seat leg 12A are provided.
B is joined to the upper end portion thereof by a reinforcing connecting member 16 arranged diagonally. In addition, seat leg 12
2, lower ends of the support portions 18A of the sheet mounting plate 18, which is a sheet mounting member, as shown in FIG.
Supported above. A vertically extending holding portion 18B is provided below the support portion 18A, and a mounting hole 19 through which a bolt is inserted is formed in the holding portion 18B.

The sill 20 is formed between the floor of the seat and the floor of the passage in the longitudinal direction of the vehicle, and has a J-shaped cross section. It is fixed to a vertical surface 26 formed between the seat and the floor surface 24. That is, a predetermined height difference is provided between the floor surface 22 of the passage and the floor surface 24 of the seat. Sill 20 has J
A gap is secured inside by the locking piece 20A having a V-shaped cross section, and an attachment 28 described later can be locked in this gap.

At the upper end 28A of the attachment 28,
A screw portion 28B into which the mounting bolt 30 is screwed is formed. As shown in FIG. 3, the attachment 2 viewed from the side
8 is formed such that the thickness of the lower end portion 28C is as narrow as L2, while the thickness of the upper end portion 28A is L1. As described above, the thickness difference is provided in the attachment 28 because the lower end 28C of the attachment 28 is inserted when the upper end 28A is inserted into the inner gap formed by the locking piece 20A of the sill 20. And the thickness of the locking piece 20A is adjusted to the lower end 28C so that the surface of the locking piece 20A is flush.
This is because

Next, a description will be given of the operation when the seat is mounted in the bus of the bus by the seat mounting structure configured as described above. First, a desired installation position in the vehicle is selected, the attachment 28 is inserted and locked in the gap formed by the locking pieces 20A of the sill 20, and the lower end portion 28C thereof and the locking pieces 20A of the sill 20 are connected. The attachment 28 is interposed so as to be flush. Then, the support portion 18A is placed on the floor surface 24 of the seat such that the center of the mounting hole 19 of the holding portion 18B of the seat mounting plate 18 matches the center of the screw portion 28B of the attachment 28. Here, a molding 32 is interposed between the floor surface 24 and the support portion 18A.

Next, the mounting bolt 30 is inserted through the bolt hole 19.
Is screwed into the screw portion 28B of the attachment 28 while being inserted via the washer 33, and the mounting bolt 30 is tightened with a predetermined torque. Then, the locking piece 2 of the sill 20
0A indicates the attachment 28 and the sheet mounting plate 18
Is fixed in a state of being held by the holding portion 18B,
As a result, the seat leg 12 of that portion is fixed to the sill 20. By performing such operations on each seat leg 12 in the same manner, the seat can be fixed to the vehicle body.

As described above, according to the present embodiment, the seat can be fixed without drilling the mounting holes in the floor of the vehicle body. It is only necessary to loosen the mounting bolt 30 and move the sheet back and forth, and the position can be easily changed. Further, since the mounting bolts 30 are tightened from the lateral direction, the workability is excellent, and the work can be performed easily and quickly. Further, the attachment 28
The resulting force acts on the sill 20 as a tension rather than a bending, so that the mounting strength is improved,
Deformation when a load occurs can be prevented. Also,
The force generated in the mounting bolt 30 is not a thread, but is generated in the shearing direction of the bolt diameter, so that it can withstand a large load.

In this embodiment, the shape of the sill 20 is a J-shaped cross section. However, the present invention is not limited to this. Any gap can be formed, such as an L-shaped cross section, in which the attachment 28 can be inserted and locked. The shape is not limited. Further, in the present embodiment, the mounting structure in the case of a vehicle provided with a predetermined height difference between the floor surface 22 of the passage and the floor surface 24 of the seat has been described. Floor and
It is also possible to apply to a vehicle having a flat floor with a seat floor.

[0019]

According to the first to third aspects of the present invention, the seat is fixed in the vehicle by holding the sill integrally provided in the vehicle between the attachment and the holding portion of the seat mounting member. Therefore, the seat position can be easily changed, and the mounting strength is improved.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing a main part of a seat mounting structure according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing the relationship between a seat leg supporting the seat on the floor and a sill provided in the vehicle.

FIG. 3 is a sectional view showing a shape of an attachment.

FIG. 4 is a perspective view showing a conventional seat mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Seat 12 12A 12B Seat leg 14 Seat surface 16 Connecting material 18 Seat mounting plate 18A Support part 18B Nipping part 19 Bolt hole 20 Sill 20A Locking piece 22 24 Floor surface 26 Vertical plane 28 Attachment 28A Upper end part 28B Screw part 28C Lower end Part 30 mounting bolt 32 molding 34 washer

Claims (3)

[Claims] 1. A seat mounting member is provided at a lower end of a seat leg for standing a seat on a floor in a vehicle, the seat mounting member supporting a lower end of the seat leg, and a lower portion extending from the supporting portion. And a sill having a locking piece is formed around the floor surface in the vehicle, and a bolt hole through which a mounting bolt is inserted is formed in the holding portion. The locking piece of the sill is locked with an attachment whose lower end protrudes from the locking piece, and the side face of the holding portion is brought into close contact with the attachment and the locking piece while using the bolt hole to make use of the bolt hole. By inserting the mounting bolt and tightening it against the thread formed at the upper end of the attachment,
A seat mounting structure, wherein the seat is fixed to a floor by interposing and holding the locking piece of the sill between the attachment and the holding portion. 2. The seat mounting structure according to claim 1, wherein the sill has a substantially L-shaped or J-shaped cross section. 3. The floor of the passage in the vehicle is formed lower than the floor of the seat, and the sill is provided on a vertical plane formed between the passage and the floor of the seat. The seat mounting structure according to claim 1 or 2, wherein: