JP6241221B2 - Under tray arrangement structure of vehicle seat - Google Patents

Description

  The present invention relates to an under tray arrangement structure for a vehicle seat.

Patent Document 1 discloses an arrangement structure of an under tray in which an under tray is disposed below a seat cushion of a front seat so that the under tray can be pulled out both forward and backward.
In this structure, a guide mechanism is provided between the seat cushion and the under tray so as to support the under tray so that it can be pulled out forward and backward.

JP 2004-33267 A

However, in the above prior art, the guide mechanism is fitted to the seat side guide rail provided on the seat side, the tray side guide rail provided on the under tray, and both the sheet side guide rail and the tray side guide rail. It is configured to include three guide rails with an auxiliary guide rail to be combined.
Therefore, the volume occupied by the three guide rail members fitted to each other is large and occupies a large space under the seat cushion, which is disadvantageous in securing a capacity for storing the articles in the under tray.
In addition to the need for three guide rails, the shape of each guide rail is also complicated, so there are a large number of parts, which is cumbersome and disadvantageous in reducing costs.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a vehicle seat under-tray arrangement structure that can be pulled back and forth with a simple configuration and that is advantageous for cost reduction. To do.

In order to achieve the above object, an invention according to claim 1 is an arrangement structure of an under tray which is arranged to be able to be pulled out in the front-rear direction below a seat cushion of a vehicle seat, A pair of rails are provided on both sides, and each rail includes a front leg portion extending downward from a front lower surface of the seat cushion, a rear leg portion extending downward from a rear lower surface of the seat cushion, and the front leg A seat cushion that connects a lateral portion extending inward in the width direction of the seat cushion from a lower end of the seat portion and the rear leg portion, an inner end of the lateral portion of the front leg portion, and an inner end of the lateral portion of the rear leg portion The under-tray has a left and right side surface facing each other, and an open tray body that has an open upper side and a front and rear portion of the left and right side surfaces, respectively. A pair of front hooking pieces and a pair of rear hooking dimensions that can be hooked to the front and rear extension parts and pass between the front leg parts and the rear leg parts while being pulled up from the front and rear extension parts. A pair of front hooking pieces and a pair of rear hooking pieces, a hooking portion that can be hooked to the front-rear extension portion, and a downward extension from a front portion of the hooking portion, It has the side part which can contact | abut to a horizontal part, It is characterized by the above-mentioned.
According to a second aspect of the present invention, the latching portions of the pair of front latching pieces and the pair of rear latching pieces are latched on the front-rear extension portion, and the front ends of the side portions of the pair of front latching pieces Is in contact with the lateral portions of the pair of front legs, and the rear ends of the side portions of the pair of rear latching pieces are in contact with the lateral portions of the pair of rear legs, thereby forming the storage state of the under tray. It is characterized by that.
According to a third aspect of the present invention, in the left and right side surfaces, the front hooking piece and the rear hooking piece are arranged in the front-rear extending portion at a position between the front hooking piece and the rear hooking piece. An elastic piece that elastically urges the front-rear extension part upward by elastically contacting the front-rear extension part from below while being hooked is provided.
Fourth aspect of the present invention, the location of the front of the left and right sides of the front lock part in a state of pulling out the undertray forwardly from the housing state of the undertray, those from below the front and rear extending portion A front abutting portion is provided, and the front and rear portions extend in the state where the under tray is pulled out rearward from the state of accommodation of the under tray at positions on the left and right side surfaces behind the front hooking piece of the under tray. A rear abutting portion that abuts the portion from below is provided.

According to the first aspect of the present invention, an under tray that can be pulled out forward and rearward with a simple structure can be provided. Therefore, the convenience of the under tray can be improved without incurring costs. . In addition, it is possible to reliably regulate the forward and backward pulling. Therefore, it is not necessary to provide a special lock mechanism or the like, and it is possible to prevent the under tray from jumping forward or backward from the lower side of the front seat due to the action of inertia force at the time of sudden braking, sudden start or collision. .
In addition, the volume occupied by the pair of guide rails, the front hooking piece, and the rear hooking piece is small under the seat cushion, which is advantageous in securing a large capacity for storing articles in the tray body of the under tray.
Further, since the above operation can be achieved with only two members, a rail having a simple structure and an under tray having a simple structure, it is advantageous in reducing the cost by reducing the number of parts.

It is a side view which shows the arrangement | positioning structure of the under tray which concerns on embodiment. (A) is the sectional view on the AA line of FIG. 1, (B) is the sectional view on the BB line of FIG. 1, and (C) is the sectional view on the CC line of FIG. It is a perspective view of a rail. It is a perspective view of an under tray. It is a side view which shows the state which raised the front part of the under tray upwards. It is a side view which shows the use condition of the under tray in front of a seat cushion. It is a side view which shows the front limit position of the under tray by which the under tray was pulled out to the maximum. It is a side view which shows the state which raised the rear part of the under tray upwards. It is a side view which shows the use condition of the under tray in the back of a seat cushion. It is a side view which shows the back limit position of the under tray from which the under tray was pulled out to the maximum.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, an under tray 14 is disposed below the seat cushion 12 of the front seat 10 so that it can be pulled out forward and backward by the under tray arrangement structure of the present invention.
The under tray arrangement structure includes a pair of rails 16 and the under tray 14 provided on the left and right sides of the lower surface 1202 of the seat cushion 12.

As shown in FIG. 3, each rail 16 is formed by bending a metal rod member having a circular cross section.
Each rail 16 includes a front leg portion 1602, a rear leg portion 1604, a front lateral portion 1606, a rear lateral portion 1608, and a front / rear extending portion 1610. Accordingly, the front leg portion 1602, the rear leg portion 1604, the front lateral portion 1606, the rear lateral portion 1608, and the front / rear extension portion 1610 are provided in pairs on the left and right sides of the lower surface 1202 of the seat cushion 12.
In FIG. 3, reference numeral 18 denotes a reinforcing member that reinforces the pair of rails 16.
As shown in FIG. 1, the pair of front leg portions 1602 extends downward from the left and right sides of the front lower surface 1202 of the seat cushion 12, and the upper ends thereof are connected to the front portion of the frame of the seat cushion 12.
The pair of rear legs 1604 extend downward from the left and right sides of the rear lower surface 1202 of the seat cushion 12, and the upper ends thereof are connected to the rear portion of the frame of the seat cushion 12.

The pair of front lateral portions 1606 extend from the lower ends of the pair of front leg portions 1602 to the inside in the width direction of the seat cushion 12.
The pair of rear lateral portions 1608 extend inward in the width direction of the seat cushion 12 from the lower ends of the pair of rear leg portions 1604.
The pair of front and rear extending portions 1610 extend in the front and rear direction with an interval in the width direction of the seat cushion 12, and connect the inner ends of the pair of front lateral portions 1606 and the inner ends of the pair of rear lateral portions 1608. Yes.

As shown in FIGS. 2 (A) to 2 (C) and FIG. 4, the under tray 14 includes a tray body 20, a pair of front hooking pieces 22, a pair of rear hooking pieces 24, an elastic piece 26, A front contact portion 28, a rear contact portion 30, a front handle portion 32, and a rear handle portion 34 are provided.
The under tray 14 is made of synthetic resin, and the front hooking piece 22, the rear hooking piece 24, the elastic piece 26, the front abutting portion 28, and the rear abutting portion 30 are integrally provided on the tray body 20.
The tray main body 20 includes a rectangular plate-shaped bottom surface 2002, front and rear side surfaces 2004 and 2006, and left and right side surfaces 2008 and 2010, and is formed in a box shape having an upper opening.
The bottom surface 2002 has a rectangular plate shape having a width smaller than the dimension between the pair of front and rear extending portions 1610 and a length smaller than the front and rear length of the seat cushion 12.
The front side surface 2004 stands from the front side of the bottom surface 2002, the rear side surface 2006 stands from the rear side of the bottom surface 2002, the left side surface 2008 rises from the left side of the bottom surface 2002, and the right side surface 2010 stands from the right side of the bottom surface 2002. Yes.
The front and rear side surfaces 2004 and 2006 are provided so that the distance between them increases gradually as they go upward, and the side surfaces of the left and right 2008 and 2010 are also provided so that their distance gradually increases as they go upward.
In the width direction of the seat cushion 12, the distance between the upper ends of the left and right side surfaces 2008 and 2010 is such that the tray body 20 is accommodated between the pair of front and rear extension portions 1610. It is formed with a dimension smaller than the interval.

The pair of front hooking pieces 22 are provided at positions near the front end on the upper portions of the left and right side surfaces 2008 and 2010.
The pair of front hooking pieces 22 protrude from the left and right side surfaces 2008 and 2010 and can be hooked on the pair of front and rear extending parts 1610 from above, and are suspended downward from the end of the hooking part 2202. The latching portion 2202 and the side portion 2204 have a length along the length direction of the under tray 14.
The pair of front hooking pieces 22 is between the hooking parts 2202 of the pair of front hooking pieces 22 in a state where the hooking parts 2202 of the pair of front hooking pieces 22 are hooked on the pair of front and rear extending parts 1610. The under tray 14 is formed with a dimension that prevents rattling in the left-right direction.
Further, the dimension L1 between the side portions 2204 of the pair of front hooking pieces 22 is such that the under tray 14 is pulled out forward and rearward from between the pair of front leg portions 1602 and between the rear leg portions 1604. It is formed smaller than the dimension L <b> 2 between the portions 1602 and between the rear leg portions 1604.
The front end 2204 </ b> A of the side portion 2204 can be in contact with the front lateral portion 1606 of the rail 16, and the rear end 2204 </ b> B of the side portion 2204 is provided so as to be in contact with the rear lateral portion 1608 of the rail 16.

The pair of rear hooking pieces 24 are provided on the left and right side surfaces 2008 and 2010 near the rear end.
The pair of rear hooking pieces 24 protrude from the left and right side surfaces 2008 and 2010 and can be hooked on the pair of front and rear extending parts 1610 from above, and are suspended downward from the end of the hooking part 2402. The latching portion 2402 and the side portion 2404 have a length along the length direction of the under tray 14.
The pair of rear hooking pieces 24 are arranged between the hooking portions 2402 of the pair of rear hooking pieces 24 in a state where the hooking portions 2402 of the pair of rear hooking pieces 24 are hooked on the pair of front and rear extending portions 1610. The under tray 14 is formed with a dimension that prevents rattling in the left-right direction.
Further, the dimension L1 between the side portions 2404 of the pair of rear hanging pieces 24 is such that the under tray 14 is drawn forward and rearward from between the pair of front leg portions 1602 and between the rear leg portions 1604. It is formed smaller than the dimension L <b> 2 between the portions 1602 and between the rear leg portions 1604.
The front end 2404A of the side portion 2404 can be in contact with the front lateral portion 1606 of the rail 16, and the rear end 2404B of the side portion 2404 is provided in contact with the rear lateral portion 1608 of the rail 16.

  As shown in FIG. 1, the tray main body 20 is positioned between the front and rear extension portions 1610 of the pair of rails 16, and the pair of front hook pieces 22 and the pair of rear hook pieces 24 are a pair of front and rear extension portions. The front end 2204A of the side portion 2204 of the pair of front hooking pieces 22 in contact with the front lateral portion 1606 of the pair of rails 16 in the state of being hooked to the 1610, and the rear ends of the side portions 2404 of the pair of rear hooking pieces 24 2404B abuts against the rear lateral portion 1608 of the pair of rails 16, and positioning in the front-rear direction in the accommodated state of the under-tray 14 is performed, and rattling of the under-tray 14 in the front-rear direction is prevented. Thereby, in the stored state, the under tray 14 is restricted from being pulled forward or backward.

As shown in FIGS. 1 and 4, the elastic piece 26 is provided at each of the left and right side surfaces 2008 and 2010 between the front hooking piece 22 and the rear hooking piece 24.
The elastic piece 26 extends in the front-rear direction by contacting the front-rear extension part 1610 from below with the pair of front hooking pieces 22 and the pair of rear hooking pieces 24 hooked on the pair of front-rear extension parts 1610. The portion 1610 is urged upward to prevent the under tray 14 from rattling in the vertical direction.
The elastic piece 26 bulges at the positions of the left and right side surfaces 2008 and 2010 and extends in the longitudinal direction of the under tray 14, and rises upward from the front and rear portions of the base portion 2602, and its upper portion extends in the front and rear extension portion 1610. And an arm portion 2604 that is elastically deformable in the vertical direction.

As shown in FIGS. 1 and 4, the front contact portion 28 is provided in front of the front hooking piece 22 on the left and right side surfaces 2008 and 2010 and is provided so as to be able to contact the rear portion of the front and rear extension portion 1610 from below. ing.
Before abutment 28, as described later, when the undertray 14 is pulled out towards the rear, the front swing limit position in cooperation with the locking piece 22 to the portion of the lower after undertray 14 The horizontal state of the under tray 14 is determined.

As shown in FIGS. 1 and 4, the rear abutting portion 30 is provided on the left and right side surfaces 2008 and 2010 at the rear of the rear hooking piece 24 so as to be able to abut on the rear portion of the front and rear extending portion 1610 from below. ing.
After contact portion 30, as described later, when the undertray 14 is pulled out toward front, the swinging limit position downward of the front portion of the undertray 14 in cooperation with the rear hooking piece 24 The horizontal state of the under tray 14 is determined.

The front handle portion 32 is a portion that is gripped when the under tray 14 is pulled forward, and is provided on the upper edge of the front side surface.
The rear handle portion 34 is a portion that is gripped when the under tray 14 is pulled out rearward, and is provided on the upper edge of the rear side surface.

Next, how to use the under tray 14 will be described.
First, the storage state of the under tray 14 will be described.
As shown in FIG. 1, in the stored state of the under tray 14, the pair of front hooking pieces 22 and the pair of rear hooking pieces 24 are respectively hooked on the front and rear extending portions 1610 of the pair of left and right rails 16.
By engaging the front hooking piece 22 and the rear hooking piece 24 with the front / rear extending portion 1610, the front end 2204 </ b> A of the side portion 2204 of the front hooking piece 22 comes into contact with the front lateral portion 1606 of the rail 16, and The rear end 2404B of the side portion 2404 of the latching piece 24 is in contact with the rear lateral portion 1608 of the rail 16, and the pulling of the under tray 14 in the front-rear direction is restricted and rattling is prevented.
Further, the elastic piece 26 elastically contacts the front-rear extending portion 1610 of the rail 16. As a result, the front / rear extending portion 1610 is held between the front hooking piece 22, the rear hooking piece 24 and the elastic piece 26 to prevent the under tray 14 from rattling in the vertical direction.

Next, a case where the under tray 14 is pulled out from the stored state will be described.
As shown in FIG. 5, the front handle portion 32 is held and the front portion of the under tray 14 is lifted upward.
As a result, the front hooking piece 22 is displaced upward, and the lower end of the side portion 2204 of the front hooking piece 22 is located at a location away from the front lateral portion 1606.
In a state where the front portion of the under tray 14 is lifted upward, the front and rear arm portions 2604 of the elastic piece 26 are elastically deformed to allow the under tray 14 to tilt. In this state, the restriction of the front lateral portion 1606 with respect to the front hooking piece 22 is released, and the under tray 14 can be pulled out forward.
Next, with the front portion of the under tray 14 lifted upward, the under tray 14 is pulled forward with a predetermined stroke.
As a result, the front hooking piece 22 passes through the front horizontal portion 1606 and moves to the front of the front horizontal portion 1606.

Next, the operation of lifting the undertray 14 upward is released, and the undertray 14 is pulled forward, and the use state of the undertray 14 in front of the seat cushion 12 is formed as shown in FIG.
When the operation of lifting the under tray 14 is released, the front portion of the under tray 14 tends to swing downward. In this case, since the state where the front and rear extension portions 1610 are sandwiched by the rear hooking piece 24 and the rear abutting portion 30 is maintained, the front tray of the under tray 14 is prevented from swinging downward. Holds horizontally.

When the under tray 14 is further pulled out forward, as shown in FIG. 7, the front end 2404A of the side portion 2404 of the rear hooking piece 24 comes into contact with the front lateral portion 1606 of the rail 16, and the under tray 14 is pulled out to the maximum extent. A front limit position of the under tray 14 is formed.
Even at the front limit position of the under tray 14, the downward swing of the front portion of the under tray 14 is prevented, and the under tray 14 is held in a horizontal state.

When the under tray 14 is removed from the front of the seat cushion 12, the rear portion of the under tray 14 is lifted from the front limit position, and the lower end of the side portion 2404 of the rear hooking piece 24 is separated upward from the front lateral portion 1606. It is made by moving the under tray 14 forward in that state.
It should be noted that in order to change the under tray 14 from the state in which it is removed in front of the seat cushion 12 or from the front limit position of the under tray 14, the reverse operation is performed.

Next, the case where the under tray 14 is pulled out from the storage state will be described.
As shown in FIG. 8, the rear handle portion 34 is grasped and the rear portion of the under tray 14 is lifted upward.
As a result, the rear hooking piece 24 is displaced upward, and the lower end of the side portion 2404 of the rear hooking piece 24 is located at a location away from the rear lateral portion 1608.
With the rear portion of the under tray 14 lifted upward, the front and rear arm portions 2604 of the elastic piece 26 are elastically deformed to allow the under tray 14 to tilt.
In this state, the restriction of the rear lateral portion 1608 with respect to the rear hooking piece 24 is released, and the under tray 14 can be pulled out rearward.
Next, in a state where the rear portion of the under tray 14 is lifted upward, the under tray 14 is pulled out backward with a predetermined stroke.
As a result, the rear hooking piece 24 passes through the rear lateral portion 1608 and is positioned behind the rear lateral portion 1608.

Next, the operation of lifting the undertray 14 upward is released, and the undertray 14 is pulled out rearward to form a use state of the undertray 14 behind the seat cushion 12 as shown in FIG.
When the operation of lifting the under tray 14 is released, the rear portion of the under tray 14 tends to swing downward. In this case, since the front hooking piece 22 and the front abutting portion 28 hold the front / rear extending portion 1610, the rear tray 14 is prevented from swinging downward and the under tray 14 is kept horizontal. Kept in a state.

When the under tray 14 is further pulled out rearward, as shown in FIG. 10, the rear end 2204B of the side portion 2204 of the front hooking piece 22 comes into contact with the rear lateral portion 1608 of the rail 16, and the under tray 14 is moved rearward as far as possible. A rear limit position of the drawn under tray 14 is formed.
Even at the rear limit position of the under tray 14, the rear tray 14 is prevented from swinging downward, and the under tray 14 is held in a horizontal state.

When the under tray 14 is removed from the rear of the seat cushion 12, the front portion of the under tray 14 is lifted from the rear limit position, and the lower end of the side portion 2204 of the front hooking piece 22 is separated upward from the rear lateral portion 1608. This is done by moving the under tray 14 backward in this state.
In order to change the state of the under tray 14 from being removed behind the seat cushion 12 or from the rear limit position of the under tray 14, the reverse operation is performed.

According to the present embodiment, by providing the rail 16 having a simple shape, and the simple hooking piece 22 and the rear hooking piece 24 provided on the under tray 14, the front and The under tray 14 can be pulled out backward, and the convenience of the under tray 14 can be improved without cost.
Moreover, in the stored state, the under tray 14 can be maintained in a stable state without rattling, and the forward and backward withdrawal can be reliably regulated.
Therefore, there is no need to provide a special locking mechanism or the like, and it is possible to prevent the under tray 14 from jumping forward or backward from the lower side of the front seat 10 due to the action of inertia force at the time of sudden braking, sudden start or collision. Can do.
In addition, the volume occupied by the pair of guide rails 16, the front hooking pieces 22, and the rear hooking pieces 24 is small below the seat cushion 12, so as to ensure a large capacity for storing articles in the tray body 20 of the under tray 14. It will be advantageous.
Further, the above operation can be achieved by only two members, that is, the pair of rails 16 having a simple structure and the under tray 14 having a simple structure in which the front hooking piece 22 and the rear hooking piece 24 are integrally formed. Therefore, it is advantageous in reducing the cost by reducing the number of parts.

  Further, by providing the elastic piece 26, it is possible to prevent rattling in the vertical direction when the under tray 14 is stored, which is advantageous in improving the convenience of the under tray 14.

  Further, by providing the front contact portion 28 and the rear contact portion 30, the horizontal state of the under tray 14 can be maintained in the front drawer state and the rear drawer state of the under tray 14, and articles can be taken in and out of the under tray 14. This makes it easier to improve the convenience of the under tray 14.

12 Seat cushion 1202 Lower surface 14 Under tray 16 Rail 1602 Front leg portion 1604 Rear leg portion 1606 Front lateral portion 1608 Rear lateral portion 1610 Front and rear extending portion 20 Tray body 2008 Left side surface 2010 Right side surface 22 Front hooking piece 2202 Hooking portion 2204 side Part 2204A Front end 2204B Rear end 24 Rear hook piece 2402 Hook part 2402A Front end 2402B Rear end 2404 Side part 26 Elastic piece 28 Front contact part 30 Rear contact part

Claims (4)

An arrangement structure of an under tray disposed so as to be able to be pulled out in a front-rear direction below a seat cushion of a vehicle seat,
A pair of rails are provided on the left and right sides of the lower surface of the seat cushion,
Each rail includes a front leg portion that extends downward from the lower surface of the front portion of the seat cushion, a rear leg portion that extends downward from the lower surface of the rear portion of the seat cushion, and lower ends of the front leg portion and the rear leg portion. A longitudinal portion extending in the front-rear direction of the seat cushion by connecting a lateral portion extending inward in the width direction of the seat cushion, an inner end of the lateral portion of the front leg portion, and an inner end of the lateral portion of the rear leg portion. With
The under tray has a tray body that is open upward and has left and right side surfaces that face each other, and projecting from the front and rear portions of the left and right side surfaces , and can be hooked on the front and rear extension portions , and the front and rear extension portions. A pair of front hooking pieces and a pair of rear hooking pieces of a size capable of passing between the front leg parts and between the rear leg parts in a state of being pulled up from
The pair of front hooking pieces and the pair of rear hooking pieces are hooking portions that can be hooked to the front and rear extension portions, and extend downward from the front portions of the hooking portions and contact the lateral portions. possible and a side portion,
A vehicle seat undertray arrangement structure characterized by the above. The respective latching portions of the pair of front latching pieces and the pair of rear latching pieces are latched on the front and rear extension portions, and the front ends of the side portions of the pair of front latching pieces are lateral to the pair of front leg portions. The under tray storage state is formed by abutting against a portion and a rear end of a side portion of the pair of rear hanging pieces abutting against a lateral portion of the pair of rear legs,
  The arrangement structure of the under tray of the vehicle seat according to claim 1. The front-rear extension piece in the state where the front-retention piece and the rear-retention piece are hooked on the front-rear extension portion at a position between the front-retention piece and the rear-retention piece on the left and right side surfaces. An elastic piece that elastically urges the front and rear extension part upward by elastically contacting the existing part from below is provided.
The arrangement structure of the under tray of the vehicle seat according to claim 1 or 2, wherein A front abutting portion that abuts the front and rear extension portion from below in a state in which the under tray is pulled forward from the under tray accommodated state is provided at positions on the left and right side surfaces in front of the front hooking piece. ,
The rear abutment is made to abut on the front / rear extension portion from below in the state where the under tray is pulled backward from the accommodation state of the under tray at the positions of the left and right side surfaces behind the front hooking piece of the under tray. Part is provided,
The arrangement structure of the under tray of the vehicle seat according to any one of claims 1 to 3.

Images