JP2009090677A - Seat leg structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat leg structure which is installed at a position where a fire extinguisher is easily taken out, and a fitting stand for fixing the fire extinguisher is easily and reliably fitted to a vehicle body. <P>SOLUTION: In the seat leg structure of a vehicle in which a door engine 22 for opening/closing a door of an entrance is arranged forward of the entrance of the vehicle in a cabin, a shelf for loading a fire extinguisher is projected upward of a front part of the door engine from a leg 28 of the seat fitted to the door engine 22 on a forward side of the vehicle. Thus, any obstacle is not present above and behind a fire extinguisher 60, and the fire extinguisher can be easily taken out. Further, the constitution is integrated to facilitate the manufacture and the fitting. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a leg structure of a small bus seat, and more particularly to a seat leg structure in which a fire extinguisher can be placed in an infant pickup bus.

  Installation of fire extinguishers is obligatory for buses with more than a certain number of passengers. Therefore, a fire extinguisher is usually installed under the seat of a small bus.

  However, the seats of small children's pick-up buses are restricted to a height from the floor surface to the seat surface that is about half that of a normal seat, and there is no space for storing a fire extinguisher under the seat.

  Therefore, conventionally, as shown in FIG. 6, the mounting base 62 is fixed to the floor 16 between the entrance 14 provided on the side opposite to the driver's seat and the seat 18 provided immediately before the entrance 14. The fire extinguisher 60 was installed on the mounting base 62.

Japanese Patent No. 2554977 discloses an invention of a vehicle provided with a fire extinguisher 105 behind the seat.
Japanese Patent No. 2549777

  However, when the door of the entrance / exit 14 is a folding door type automatic door, as shown in FIG. 6, a door engine 22 that automatically opens and closes the door is installed on the vehicle front side of the entrance / exit 14. Therefore, the fire extinguisher 60 is attached between the seat 18 and the door engine 22 so that the seat 18 is covered, and it is difficult to take out the fire extinguisher 60.

  In addition, there is a problem that the assembly process is increased because the mounting base 62 of the fire extinguisher 60 is fixed on the floor 16, and the fixing process is difficult because it is sandwiched between the seat 18 and the door engine 22 and is narrow. In addition, although it has been considered to raise the mounting base 62 obliquely upward, there is a problem in that since the fire extinguisher 60 is attached to the tip of the mounting base 62, the stress applied to the floor 16 increases and the floor 16 needs to be reinforced.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide a seat leg structure in which a fire extinguisher is installed at a position where it can be easily taken out, and a mounting base for fixing the fire extinguisher is simply and reliably attached to a vehicle body. .

  In order to solve the above-described problems, the present invention has the following structure of the leg portion of the door front seat.

  1. In a vehicle in which a door engine for opening and closing the door of the entrance is arranged in front of the vehicle interior of the vehicle entrance and exit, a seat attached to the vehicle front side of the door engine (referred to as “door front seat”). The shelf for placing a fire extinguisher is projected from the leg portion of the door engine toward the upper front of the door engine.

  2 and 1, the leg portion of the front seat of the door has a pair of left and right legs separated in the vehicle width direction extending in the vertical direction, and the fire extinguisher mounting shelf is mounted A mounting portion having a fixture for fixing the fire extinguisher, and one end fixed to an intermediate portion in the vertical direction of each leg, and the other end extending from the one end to the rear of the vehicle to support and fix the mounting portion. A pair of left and right first arms and one end are fixed to the lower end of each leg, and the other end extends rearward from the one end along the floor of the vehicle and then bends upward to An intermediate position of one arm or a pair of left and right second arms fixed to the mounting portion described above was used.

The seat leg structure according to the present invention has the following effects.
Since the fire extinguisher is attached to the front upper part of the door engine, there are no obstacles on the upper part of the fire extinguisher and on the rear side of the vehicle.

  Since the mounting shelf on which the fire extinguisher is installed and the leg portion of the seat are integrally formed, reinforcement to the floor portion is unnecessary, installation work is facilitated, and the assembly process can be simplified. Since the 2nd arm is supporting the 1st arm or the mounting base from the lower part, a fire extinguisher can be fixed firmly. Since the mounting base is formed integrally with the leg portion of the seat, the manufacturing process can be omitted and the manufacturing cost can be reduced as compared with the case where the mounting base is separately formed.

  Since the second arm provided at the lower end of the leg portion is extended in the state of being placed on the rear surface of the vehicle and on the floor surface, the contact area with the floor surface is increased and the contact with the floor surface is increased. Stress can be reduced. The stress generated in the attachment portion between the first arm and the leg can be reduced by the support of the second arm, and the member can be thinned to reduce the overall weight.

An embodiment of a leg structure of a seat according to the present invention will be described with reference to the drawings.
FIG. 1 shows the overall configuration of the bus 10. The bus 10 is a bus for picking up an infant provided with a driver's seat 12 in the front right side of the passenger compartment and a boarding gate 14 on the left side. The interior of the bus 10 is provided with a passage substantially in the center, and seats (not shown) are provided on both sides of the passage. Each seat is an infant seat whose seating surface is set to a height of about 250 mm from the floor surface.

  As shown in FIG. 3, the bus 10 is a front engine type in which an engine 19 is mounted under the floor in front of the vehicle, and an engine lid 21 is provided on the engine 19. FIG. 3 shows the vehicle from above, and the left side of the figure is the front of the vehicle. The floors 16 located on the left and right sides of the engine lid 21 are formed one step higher than the floor behind the vehicle, as with the engine lid 21. A front tire 25 (see FIG. 2) is disposed at the lower portion of the floor 16.

  The entrance / exit 14 is provided with a folding door type automatic door 20 (see FIG. 1). A door engine 22 for opening and closing the automatic door 20 is installed on the floor 16 on the front side of the entrance 14 as shown in FIG. The door engine 22 has a substantially rectangular parallelepiped cover, a drive mechanism (not shown) is accommodated in the cover, and the drive end of the drive mechanism is connected to one inner surface of the automatic door 20. Has been.

  A seat (door front seat) 18 is mounted on the floor 16. The seat 18 is provided in front of the entrance 14 and is the front row seat on the entrance 14 side. The seat 18 is attached via the fixed base 17 on the floor 16 formed one step higher in the front of the vehicle as described above. A footrest 23 is attached to the front of the seat 18 with a height that is continuous with the fixed base 17.

  The seat 18 includes a seating portion 24, a backrest portion 26, and leg portions 28 that support them. The seating portion 24 is attached on the leg portion 28 and is set to a height of about 250 mm from the fixed base 17. The backrest portion 26 is attached to a backrest support pipe 30 extending rearward of the leg portion 28.

  The entire leg portion 28 is shown in FIG. The leg portion 28 includes four legs 32 that support the seating portion 24 at the four corners in the vertical direction, and a bottom plate 34 is attached to the lower surface of the legs 32 arranged in the front-rear direction. The bottom plate 34 is formed with two screw holes 35 through which the fixing screws 33 are passed.

  The fire extinguisher mounting shelf is disposed behind the rear legs 32, and a first arm 36 is attached to each of the rear legs 32. The first arm 36 is attached slightly below the seating portion 24, and extends substantially horizontally to the rear of the vehicle. A mounting plate 38 is attached to the rear end of the first arm 36 by connecting the left and right first arms 36.

  A second arm 40 is attached to the rear of the bottom plate 34. The second arm 40 extends from the rear leg 32 to the rear of the vehicle, and then bends upward to be connected to the middle position of the first arm 36. The second arm 40 is formed at the same height as the bottom plate 34, and when the bottom plate 34 is fixed to the fixed base (floor surface) 17, the lower surface 41 of the second arm 40 also abuts on the fixed base 17. Although the bottom plate 34 and the second arm 40 are separated for the sake of explanation, they may be composed of the same member.

  A mounting bracket 42 of the fire extinguisher 60 is attached to the mounting plate 38. The mounting bracket 42 is formed with a claw portion 44 that hangs the lower end of the fire extinguisher 60 at one end, and includes a buckle-type fixing belt 46 in the middle. The fixing belt 46 includes a lever 48, and the fire extinguisher 60 is locked and unlocked by the operation of the lever 48.

  A state in which the fire extinguisher 60 is fixed to the mounting plate 38 is shown in FIG. As shown in FIG. 5, the fire extinguisher 60 is detachably fixed to the mounting bracket 42 with its longitudinal direction along the horizontal direction of the bus 10.

  Therefore, since the fire extinguisher 60 is mounted above the door engine 22 and is also away from the seating portion 24 and the backrest portion 26 of the seat 18, the operation of the fixing belt 46 is easy and quick removal is possible. It has become.

  Since the mounting plate 38 and the leg 32 are integrally formed, the manufacturing cost can be reduced as compared with the case where the seat leg and the fire extinguisher fixing base are individually manufactured. Since the mounting plate 38 and the leg 32 are integrally formed, if the leg 32 is fixed on the floor 16, the mounting plate 38 can be fixed to the floor 16, and the fixing base and the seat are separately attached. In comparison, the attachment process becomes very simple.

  Since the first arm 36 is supported by the second arm 40 from below, sufficient strength can be obtained. Since the second arm 40 extends from the bottom plate 34 to the rear of the vehicle and once contacts the floor 16, the load is distributed, and the fire extinguisher 60 is attached to the mounting plate 38 so that the center of gravity of the seat 18 is rearward. Even if it is displaced, the mounting will not become unstable.

  In the above example, the automatic door is described as an example, but the present invention can also be applied to a vehicle in which a drive mechanism for the automatic door is not provided.

The perspective view which shows one Embodiment of the vehicle provided with the seat concerning this invention. The side view which shows a seat part. The top view which shows a seat part. The perspective view which shows a leg part. The perspective view which shows a seat part. The side view which shows the conventional example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Vehicle 12 ... Driver's seat 14 ... Entrance / exit 16 ... Floor 22 ... Door engine 28 ... Leg part 36 ... First arm 38 ... Mounting table 40 ... Second arm 60 ... Fire extinguisher

Claims (2)

In a vehicle in which a door engine for opening and closing the door of the entrance is arranged in front of the vehicle interior of the vehicle entrance,
A fire extinguisher mounting shelf protrudes from a leg portion of a seat (referred to as a “door front seat”) attached to the front side of the door engine toward the upper front portion of the door engine. The leg structure of the seat to play. The leg portion of the door front seat has a pair of left and right legs separated in the vehicle width direction extending in the vertical direction,
The shelf for mounting the fire extinguisher has a mounting portion having a fixture for fixing the mounted fire extinguisher, one end fixed to an intermediate portion in the vertical direction of each leg, and the other end from the one end to the vehicle. A pair of left and right first arms that extend rearward and support and fix the mounting portion, one end is fixed to the lower end of each leg, and the other end extends from the one end along the floor of the vehicle to the vehicle. 2. The seat according to claim 1, comprising: a pair of left and right second arms that extend rearward and then bend upward and are fixed to an intermediate position of the first arm or to the mounting portion. Leg structure.

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