JP2004201739A - Fall preventing device for placement article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a placement article fall preventing device for preventing an article placed on a seat from being fallen, which can improve the quality of appearance of the seat without impairing the seating performance. <P>SOLUTION: The right and left sides of a fall preventing plate 1 and the right and left sides 42 of a seat cushion SC are connected to each other by a pair of upper and lower parallel links 20, 21. A lower part of a front side surface 41 in the seat cushion SC, the upper part of which is projected forward as compared with the lower part, is used as a storing space part B for the fall preventing plate 1 and the fall preventing plate 1 is stored in the storing space part B. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounted object fall prevention device for preventing a mounted object such as luggage placed on a passenger seat of a vehicle from dropping to a vehicle floor when the vehicle is suddenly braked.
[0002]
[Prior art]
When an object such as a small object or a personal computer is placed on the passenger seat, the fall prevention member stored in front of the seat cushion in the passenger seat is projected above the seat cushion to prevent the object from falling. (For example, see Patent Documents 1 and 2).
[0003]
[Patent Document 1] Japanese Utility Model Laid-Open No. 51-36825 (FIG. 9).
[Patent Document 2] Japanese Utility Model Laid-Open No. 63-189844 (FIG. 3).
[0004]
[Problems to be solved by the invention]
When the occupant sits on the seat cushion in a state where the fall prevention member is stored in the front side of the seat cushion, there is a risk that the feet and pants of the occupant may contact the fall prevention member.
[0005]
For this reason, the occupant's seating performance is impaired, and the fall prevention member during storage is visually recognized from the outside, and the appearance quality of the seat is impaired.
[0006]
Therefore, an object of the present invention is to eliminate such disadvantages of the conventional product.
[0007]
[Means for Solving the Problems]
The object fall prevention device according to the present invention for achieving the above object is an object fall prevention device attached to a seat cushion on which an upper portion of a front side protrudes forward with respect to a lower portion and a load is placed on an upper surface. A fall prevention plate disposed in front of the front side of the seat cushion; and a pair of upper and lower parallel links connecting one or both of the left and right sides of the fall prevention plate and the left and right sides of the seat cushion. A lock mechanism is provided on the seat cushion side of the link to lock the parallel link and lock the fall prevention plate at the use position and the storage position.
[0008]
With the above configuration, the lower part of the front side surface of the seat cushion is used as a storage space for the fall prevention plate, and the non-use fall prevention plate is stored in the storage space.
Therefore, the fall prevention plate stored in the storage space is not visually recognized from above, and the occupant's feet, pants and the like do not contact the fall prevention plate.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a vehicle seat (passenger seat) provided with a luggage fall prevention device according to the present invention. In the figure, SC indicates a seat cushion of the seat, and SB indicates the seat back.
[0010]
As shown in FIG. 2, a load such as baggage B such as a bag is placed on the upper surface 40, which is a seating surface of the seat cushion SC, from the driver's seat side. The fall prevention plate 1 is attached upright along the front edge on the upper surface 40 so as not to fall.
[0011]
The illustrated fall prevention plate 1 is formed by bending a synthetic resin band-shaped plate into a substantially U-shape so as to extend from the front side surface 40 to the left and right side surfaces 42 of the seat cushion SC along the front side.
[0012]
In the figure, reference numeral 10 denotes a main body of the fall prevention plate 1, which is a plate having a slightly longer overall length than the width direction (left-right direction) of the front side surface 40 of the seat cushion SC, and which is substantially right and left in the direction of the left and right side surfaces 42 of the seat cushion SC. Bending portions 11, 11 that bend are extended.
[0013]
As shown in FIG. 2, the front side 41 of the seat cushion SC has an upper portion formed so as to protrude forward with respect to the lower portion, and the fall prevention plate 1 holds the seat cushion SC during storage as shown by a chain line in FIG. It is stored in the storage space part B below the front end upper part a, and from this storage state, the parallel link 20, 21 is used to straddle the front end upper part a as shown in the solid line of FIG. That is, it is movably attached so as to be located on the upper surface 40.
[0014]
The front ends of the parallel links 20 and 21 are pivotally connected to the insides of the bent portions 11 and 11 of the fall prevention plate 1 so as to be rotatable. As shown in FIGS. The end is pivotally connected to a bracket 31 fixed to the left and right side surfaces 42 of the seat cushion SC by pins 38, and the rear end of the other link 20 is connected to the bracket 31 via a lock mechanism.
[0015]
The lock mechanism locks the link 21 so that the fall prevention plate 1 is held in the use state and the stowed state, and is used in conventionally known headrests and armrests.
[0016]
That is, the illustrated lock mechanism is provided on a bracket 31 fixed to the cushion frame 30, and includes a sector plate 33 integrated with a support shaft 36A through which the other end of the link 21 is inserted, and a tooth portion 33B of the sector plate 33. The locking claw 34 is biased by a spring (not shown) in the direction in which the lock 21 is engaged with the lock release plate 32, and the spring 35 biases the link 21 upward.
[0017]
The above-mentioned sector plate 33 is provided with a pin 33C which is inserted into the arc-shaped long hole 32B of the unlocking plate 33, and the locking claw 34 is provided with a releasing pin which is joined to the edge 32C of the unlocking plate 33. 34C is provided, and when the engaging element 34C of the locking claw 34 that engages with the teeth 33B pushes the fall prevention plate 1 upward from the uppermost position or below the lowermost position, the teeth 33B The locking claw 34 is configured to be lifted up in the detaching direction to release the lock.
[0018]
The spring 35 is wound around a guide cylinder 36 rotatably mounted on a support shaft 36A. One end of the spring 35 is engaged with a support shaft 36A, and the other end is engaged with a fixing member (not shown) of a seat cushion. Urges the link 21 to rotate upward.
[0019]
In FIGS. 3 and 4, reference numerals 20A and 21A denote attachment holes for attaching one ends of the links 20 and 21 to the drop prevention plate 1 side with pins (not shown), and reference numeral 20B designates the other ends of the links 20 with bolts 38. A pivot hole pivotally attached to the bracket 31 is provided at the other end of the link 21. A fastening hole is provided at the other end of the link 21 to insert the support shaft 36B and fasten with the nut 37. 30A and 31A are holes of the support shaft 36A. A through hole, 31B is a through hole for the bolt 38, 31C is a mounting hole for rotatably attaching the locking claw 34 to the bracket 31 with a pin 34A, 32A is an insertion hole for rotatably inserting the support shaft 36B, and 32D is a through hole. The engagement portion of the release pin 34C and 33A indicate through holes provided in the sector plate 33 and through which the support shaft 36A is integrally inserted.
[0020]
Thus, in the retracted state of the fall prevention plate 1 shown in FIG. 4 (the state shown by the chain line in FIG. 2), when the fall prevention plate 1 is lifted upward, the release plate 33 is interlocked with the rotation of the sector plate 33. 4, the edge 32C jumps up the release pin 34C of the locking claw 34, and the release pin 34C engages with the engaging portion 32D of the release plate 33.
[0021]
As a result, the engagement state of the engagement claw 34B with the tooth portion 33B of the locking claw 34 is released, so that the link 21 urged upward by the elastic force of the spring 35 moves upward together with the link 20. Thereby, the fall prevention plate 1 is in the use state shown in FIG. 1 and FIG. 2, and it is possible to prevent the load B from dropping on the vehicle floor.
[0022]
When the drop prevention plate 1 is at the uppermost position, the release plate 33 is rotated by the rotation of the sector plate 33, and the release pin 34C is disengaged from the engaging portion 32D of the release plate 33, and is attached by a spring in the locking direction. The engaging element 34B of the biased locking claw 34 is engaged with the tooth portion 33B of the sector plate 33 to lock the link 21.
[0023]
Since the above-described vertical movement of the fall prevention plate 1 is performed in an arc shape by the parallel links 20 and 21, the upper portion of the front end of the seat cushion SC does not contact when the fall prevention plate 1 moves. In addition, in the use state and the storage state, since the fall prevention plate 1 is attached by the pair of upper and lower links 20 and 21, there is no rattling or noise due to vibration or the like during traveling of the vehicle.
[0024]
In the drawing, a part of the links 20, 21 and the bracket 31 are visible from the outside when the fall prevention plate 1 is in use and in the retracted state. The bent portions 11 may be formed large so as to cover them.
[0025]
【The invention's effect】
According to the present invention, since the fall prevention plate is moved to the use position and the storage position by the parallel link, it can be mounted on a seat cushion in which the upper portion of the front side surface projects forward with respect to the lower portion. Since the lower part of the front side of the seat cushion is used as a storage space for the fall prevention plate, the feet, pants, etc. of the occupant do not come into contact with the fall prevention plate during storage. Since the fall prevention plate at the time is not visible from above the sheet, the appearance quality of the sheet can be improved.
[0026]
In addition, the left and right sides of the fall prevention plate are connected by a pair of upper and lower parallel links, and the parallel links are locked by a lock mechanism, so that the fall prevention plate is securely fixed while the vehicle is running, and there is play and noise. Etc. can be prevented.
[Brief description of the drawings]
FIG. 1 is a perspective view of an automobile seat provided with the device of the present invention.
FIG. 2 is a sectional view taken along line II-II of FIG.
FIG. 3 is an exploded perspective view of the device of the present invention.
FIG. 4 is a perspective view of a mounting member of a fall prevention plate used in the present invention.
[Explanation of symbols]
1 Fall Prevention Plate 2 Side Drop Prevention Section A Upper Surface of Seat B Outer Side of Seat C Front Side of Seat

Claims (2)

An object fall prevention device attached to a seat cushion on which an upper part of a front side surface projects forward with respect to a lower part and places a load on an upper surface,
A fall prevention plate arranged in front of the front side of the seat cushion,
A pair of upper and lower parallel links connecting one or both of the left and right sides of the seat cushion and the left and right sides of the fall prevention plate,
A lock mechanism provided on the seat cushion side of the parallel link to lock the parallel link and lock the fall prevention plate at the use position and the storage position;
An object fall prevention device consisting of:

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