JP2001030911A - Auxiliary vehicle seat mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an auxiliary seat mounting device capable of carrying seats of a fixed or tumbling type, whichever, being stably supported thereon into a vehicle body. SOLUTION: A pair of supporting arms 23, 23 are arranged on a carriage 22 so as to be movable between the maximum and minimum intervals. A fixed type seat in normal attitude is placed and supported on the supporting arms 23, 23 mutually spaced at the maximum interval. A tumbling type seat in a tumbling condition is placed and supported on the supporting arms 23, 23 mutually spaced at the minimum interval. Herein, a tumble-down preventing arm 25 is engaged with the upper end of the seat in the tumbling condition to assure the stability of the seat in the tumbling condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat mounting auxiliary device used for carrying in a rear seat on a rear floor in a vehicle body.

[0002]

2. Description of the Related Art There are two types of rear seats disposed on the rear floor of a vehicle body. One type has a seat cushion fixed horizontally and the other type has a seat cushion that can be tumbled. Also, when loading the rear seat onto the rear floor, the loading method is also as follows: the normal position loading method where the seat cushion of the rear seat is loaded substantially parallel to the floor, and the front part of the seat cushion with the floor down. 2 of the so-called tumble state in which the rear part is flipped up or the tumble posture carrying method for carrying in the stowed posture
There are types. FIG. 5 shows a structural example of a sheet to which the former normal posture loading method is applied, and FIGS. 6A to 6C show specific examples of a sheet to which the latter tumble posture loading method is applied.
Each is described below.

The seat 1a shown in FIG.
a, a backrest 3a and a headrest a4, a front leg 6 and a rear leg 7 of a frame 5 fixed to the lower surface of the seat cushion 2 are bolted on a rear floor 10 of a vehicle body. On the other hand, the seat 1b in FIG. 6 also includes a seat cushion 2b, a seat back 3b, and a headrest 4b similar to those in FIG. 5, and a front leg 8 on the lower surface of the seat cushion 2b is fixed on the floor 10 with bolts, and the lower surface of the seat cushion 2b The rear leg 9 is placed and fixed on the floor 10 by a lock mechanism (not shown).

In the normal posture loading method, the seat cushion 2a of the seat 1a shown in FIG. Such a sheet loading operation is usually performed using a dedicated sheet mounting assisting device 11 as shown in FIGS. 7 and 8, for example. Seat mounting assist device 11
Is a bracket 1 on a cart 12 that can be moved by hand.
7, two parallel support arms 13, 13 are attached. The trolley 12 has a lifting mechanism similar to a known pallet transport trolley, and the trolley 12 is gradually raised by swinging the handle 14 at the rear of the trolley 12 up and down several times,
When the pedal (not shown) is depressed, the carriage 12 descends to the initial height. A protrusion 15 is provided at a lower part of the front surface of the carriage 12, and a front wheel 16a is disposed on the lower surface of the tip of the protrusion. Further, a pair of left and right rear wheels 16b is disposed on the rear lower surface of the carriage 12.

In the normal posture carrying-in method, a seat 1a in a normal posture is placed on the two support arms 13 and 13 as shown in FIGS.
a and the front and rear ends of the frame 5 are a pair of support arms 13,
13 is supported from below. In this state, the worker moves the cart 12
Is pushed to move to a place where the vehicle body is located, the protrusion 15 is inserted into a lower portion of the vehicle body, and the support arms 13 and 13 are inserted just above the floor 10 of the vehicle body. In this manner, the sheet 1a is carried into the fixed position on the floor 10, and then the carriage 12 is lowered to move the sheet 1a into the fixed position on the floor 10.
After positioning and mounting, the carriage 12 is retracted and the seat 1
The support arms 13 and 13 are pulled out from a, and the seat cushion 2a is fixed on the floor 10 with bolts.

In the seat 1b shown in FIG. 6 to which the tumble posture loading method is applied, the upper part of the front leg 8 is rotatably connected to the front of the seat cushion 2b, and the lower part of the front leg 8 is the floor 1.
The structure is fixed to zero. 6A shows the seat 1b in a use state (normal posture), FIG. 6B shows the seat 1b during storage, and FIG. 6C shows the seat 1b at the time of storage. The storage of the seat 1B is performed by first attaching the seat back 3b to the seat cushion 2b in the normal posture shown in FIG.
As shown in (B), after the front is lowered, the rear end of the seat cushion 2b is unlocked, and then the whole of the seat cushion 2b and the seat back 3b are substantially perpendicular to the floor 10 with the front leg 8 as a fulcrum. Then, the seat cushion 2b or the seat back 3b is finally locked to the vehicle body by locking means (not shown) to complete the operation.

A tumble seat 1b as shown in FIG. 6 can be carried into the vehicle body similarly to the seat of FIG. 5 by using the seat mounting assisting device 11 of FIG. The operation of bolting the front leg 8 of the cushion 2b to the floor 10 with a bolt is the seat cushion 2b.
And it gets harder. That is, in the tumble seat 1b, it is generally easier to place the seat 1b in the retracted position shown in FIG. 6C and bolt the front leg 8 to the floor 10. Therefore, the tumble-type seat 1b is
When the sheet 1b is carried into the floor 10 in the posture as shown in FIGS. 6A and 6B, the seat 1b is changed to the storage posture as shown in FIG. Change work is unexpectedly time-consuming and inefficient.

Therefore, the tumble sheet 1b is shown in FIG.
A dedicated sheet mounting auxiliary device for supporting and carrying in the storage position of (C) has also been developed. However, such a dedicated auxiliary device has a supporting structure different from the device of FIGS. 7 and 8 in order to support in a tumble state. Will be different.

[0009]

Generally, vehicles on which different types of seats shown in FIGS. 5 and 6 are to be mixedly flown on a vehicle body assembly line. In such a mixed flow line, it is necessary to arrange two types of sheet mounting auxiliary devices on the side of the line. However, in this case, it is troublesome to use the sheet mounting auxiliary devices properly, and when using one of the auxiliary devices, The other auxiliary device gets in the way.

An object of the present invention is to provide a seat mounting auxiliary device that can be used commonly for a fixed rear seat and a tumble rear seat.

[0011]

According to the present invention, there is provided a vehicle seat mounting assisting device which can move on a floor and protrude forward from the bogie in a horizontal direction so that the vehicle seat can be mounted in a normal posture. A pair of left and right support arms that are parallel to each other in a widely separated state, arm lateral driving means for moving the pair of support arms toward and away from each other, and a tumble type in a tumble state mounted on the pair of support arms in an approach state It is characterized by comprising a fall prevention arm which can be engaged with the upper end of the seat from above, and arm vertical drive means for moving the fall prevention arm up and down on the carriage.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
A description will be given with reference to FIG.

The seat mounting assisting device 21 shown in FIG.
Is a truck 22 that moves on the floor by hand or power.
A pair of left and right parallel support arms 23, 23 projecting forward from the carriage 22 in the horizontal direction; and arm lateral drive means for supporting the pair of support arms 23, 23 on the carriage 22 so as to be able to approach and separate from each other. An arm lateral drive mechanism 24, a fall prevention arm 25 movably arranged above the carriage 22, and an arm vertical drive mechanism as arm vertical drive means for supporting the fall prevention arm 25 movably on the carriage 22. 26.

The structure of the trolley 22 may be the same as that of the conventional trolley. For example, a handle 27 is fixed to the rear of the trolley 22, and a front wheel 29a is disposed on the lower surface of the tip end of a protruding portion 28 protruding forward from the lower front part of the trolley 22. The rear wheels 29b are disposed on the left and right sides of the lower surface of the rear end of the bogie 22.

As shown in detail in FIG. 2, the arm lateral drive mechanism 24 includes a pair of swing arms 34 that support two rear ends of the pair of support arms 23. Since the configuration of the pair of swing arms 34 is basically the same for the left and right, only one will be described. The swing arms 34, 34 are fixed to a common support shaft 31 that is parallel to the support arm 23,
Both front and rear ends of the support shaft 31 are rotatably supported by bearings 33 projecting from the upper surface of the carriage 22. One swing arm 34 extends a predetermined length to the opposite side of the support shaft 31,
The distal end of the piston rod 35 of the cylinder 32 is connected to the extending end. The swing arm 34 and the support arm 23 swing left and right by the expansion and contraction of the piston rod 35. The main body of the cylinder 32 is pivotally supported on the upper surface of the carriage 22 so as to be vertically swingable.

The arm vertical drive mechanism 26 for supporting the fall prevention arm 25 is provided with a support 3 protruding from a rear upper surface of the carriage 22.
6 is provided with an elevating cylinder 37 fixed vertically, and a piston rod 38 projecting directly upward from the elevating cylinder 37.
The rear end of the fall prevention arm 25 is fixed perpendicular to the upper end of the arm. The fall prevention arm 25 includes a pair of support arms 2.
3 and 23, a pair of support arms 23 and 23
The lifting cylinder 37 moves up and down on a substantially vertical bisector between them. A sheet engaging piece 39 having a U-shaped cross section is fixed to the lower surface of the tip end side of the fall prevention arm 25 as necessary.

The maximum distance W between the pair of support arms 23, 23
“a” is set to be the same as the distance between the pair of support arms in FIG. 7, and the fixed sheet 1a in FIG. 5 can be placed on the support arms 23 with the maximum distance Wa. As shown in FIG. 3, the seat 1a shown in FIG. 5 has a support arm 2 with a maximum distance Wa between the front and rear ends of the frame 5 fixed to the lower surface of the seat cushion 2a of the seat 1a as shown in FIG.
3, 23 support. At this time, the fall prevention arm 25 is held at the upper limit fixed position away from the seat back 3a and the headrest 4a of the seat 1a so as not to hinder the work of placing the seat 1a on the support arms 23. Then, the carriage 22 supporting the seat 1a in the normal posture moves to the vehicle body as shown in FIG. 3, and the seat 1a is carried into the body.

The minimum distance Wb between the pair of support arms 23, 23 is set to a size that supports the seat 1b in the tumble state shown in FIG. 6C. FIG. 4 shows the case where the seat 1b in the tumble state is supported by the support arms 23 and 23 having the minimum distance Wb.
A downwardly facing front portion of the seat cushion 2b of the seat 1b in the tumble state is placed and supported on the seats 3 and 23. At the same time, the fall prevention arm 25 is lowered from the upper limit position by the operation of the lifting / lowering cylinder 37, so that the sheet engaging piece 39 having a U-shaped cross section is the upper end of the seat 1b in the tumble state, for example, the lower end of the seat back 3b (in FIG. 4, (The upper end) is engaged in the thickness direction. With this engagement, the support arm 2
FIG. 4 of the sheet 1b supported in a tumble state on the sheets 3 and 23
Swing or tipping in the left-right direction is prevented. And FIG.
Cart 22 supporting the seat 1b in the tumble state as shown in FIG.
Moves to the vehicle body, and carries the sheet 1b into the body in a tumble state. The seat 1b carried into the floor 10 of the vehicle body remains in the tumble state on the floor 1
It is fixed to 0 by bolting.

The above-described seat mounting assisting device 21 is provided on a vehicle body assembly line. When a body to which the fixed seat 1a shown in FIG. Is used to extend the pair of support arms 23, 23 to the maximum distance Wa, and when the body to which the tumble seat 1b shown in FIG.
The pair of support arms 23, 23 are narrowed to the minimum distance Wb by operating the pair 2, 32 and used. As described above, by using one sheet mounting auxiliary device 21 for mounting the two types of seats 1a and 1b of the fixed type and the tumble type, complicated use of the sheet mounting auxiliary device is eliminated and the number of auxiliary devices is reduced. In addition, the waiting space can be reduced.

[0020]

As described above, the present invention is a seat mounting auxiliary device provided with a pair of support arms which can approach and separate from each other and a fall prevention arm which can move up and down. Both the fixed type seat and the tumble type seat can be carried into the vehicle body, eliminating the need to use two types of dedicated auxiliary devices of the conventional seat type and eliminating the need for one side on the vehicle assembly line. Work space can be used effectively because only the types of seat mounting auxiliary devices need to be deployed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a seat mounting auxiliary device of the present invention.

FIG. 2 is an enlarged side view of arm lateral driving means.

FIG. 3 is a front view of a seat mounting auxiliary device supporting a fixed type seat.

FIG. 4 is a front view of a seat mounting auxiliary device that supports a tumble-type seat in a tumble state.

FIG. 5 is a side view of the fixed rear seat.

FIGS. 6A and 6B are side views of a tumble-type seat, wherein FIG. 6A is a side view at a normal posture, FIG. 6B is a side view at a time of folding a seat back, and FIG.

FIG. 7 is a perspective view of a conventional seat mounting auxiliary device.

FIG. 8 is a front view of a seat mounting auxiliary device supporting a fixed type seat.

[Explanation of symbols]

 1a Seat (normal posture carrying method) 2a Seat cushion 1b Seat (tumble posture carrying method) 2b Seat cushion 22 Cart 23 Support arm 24 Arm horizontal drive mechanism 25 Fall prevention arm 26 Arm vertical drive mechanism

Claims (1)

[Claims] 1. A trolley moving on a floor, a pair of left and right support arms projecting from the trolley in the front horizontal direction and parallel to each other in a widely separated state so that a vehicle seat can be placed in a normal posture. Arm lateral driving means for moving the support arms toward and away from each other, a fall prevention arm capable of being engaged from above with an upper end of a tumble sheet in a tumble state placed on the pair of support arms in the approach state, and the fall prevention A vehicle seat mounting auxiliary device, comprising: arm vertical driving means for raising and lowering an arm on the carriage.