JP2017114139A - Under-tray support structure for seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an under-tray support structure capable of preventing an under-tray from being pulled out forward more than necessary.SOLUTION: In an under-tray support structure, a rear end of each slide part 1d of an under tray is provided with a projection 24, a front end part of each lower guide body 3b is provided with a curved part 20, and an engaging piece 21 is fixed to each upper guide body 3a. A vertical width W of the rear end part of the slide part 1d is designed to be slightly smaller than a minimum distance W1 between the curved part 20 of the lower guide body 3b and a front end of an upper guide body 3a. A projection amount of the projection body 24 and an inclined amount of the engaging piece 21 are designed so that engagement between the projection 24 and the engaging piece 21 are released, with an upper end of the projection 24 of the slide part 1d is positioned under a rear end of the engaging piece 21 of the upper guide body 3a when a front end of the under-tray is lifted to incline the slide part 1d.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a seat under-tray support structure that is provided at the lower part of a seat of a vehicle and slidably supports an under-tray for storing luggage so that it can be slid back and forth, and in particular, locked when the under-tray is fully pulled out. About.

  2. Description of the Related Art Conventionally, an under tray for storing luggage is slidably disposed in the front-rear direction under a seat of a vehicle such as an automobile. At this time, in order to prevent the under tray from protruding forward from the lower part of the seat due to vibration or the like while the vehicle is running, the slide rail and the under tray that slidably support the under tray respectively A support structure is employed in which a stop portion is provided, and the under tray is locked so as not to protrude excessively forward by engagement of the engaging portion and the locked portion by the unevenness (see Patent Document 1).

Japanese Patent Laying-Open No. 2015-98250 (see paragraphs 0008 to 0018 and FIGS. 1, 7, and 10)

  However, in the case of the conventional support structure, since it is supported by the unevenness of the locking part and the locked part, the lock can be easily released if the vehicle is subjected to an impact due to a collision or if it is pulled with an excessive force. This may cause the under tray to protrude excessively forward.

  An object of the present invention is to prevent the under tray from being pulled forward more than necessary.

  In order to achieve the above object, the seat under tray support structure of the present invention is provided at the lower part of the seat of the vehicle, and the under tray support structure of the seat supports the under tray for storing luggage so as to be slidable back and forth. An upper and lower guide body that is attached to the lower side of the seat, and a slide portion that is provided on the under tray and that slides between the upper and lower guide bodies and allows the under tray to slide back and forth; A curved surface portion formed so as to rise on the upper surface of the front end of the lower guide body, and a front end fixed to the front end portion of the upper guide body above the curved surface portion so that the rear end is inclined obliquely downward. A stopper, and is provided upward at the rear end of the slide portion and is locked to the rear end of the locking piece when sliding forward of the under tray. And a vertical width of a rear end portion of the slide portion is set slightly smaller than a shortest distance between the curved surface portion and a front end of the upper guide body, and the front end of the under tray is lifted up to The upper end of the protrusion is positioned below the rear end of the locking piece in a state where the rear end of the slide portion is inclined, and the locking state of the protrusion with the locking piece is released. The protrusion amount of the protrusion and the inclination amount of the locking piece are set.

  According to the present invention, the protrusion is provided at the rear end of the slide portion of the under tray, the curved portion is provided at the front end portion of the lower guide body, and the locking piece is fixed to the upper guide body. Set the width slightly smaller than the shortest distance between the curved surface of the lower guide body and the front edge of the upper guide body, lift the front edge of the under tray, and tilt the slide section so that the upper edge of the protrusion on the slide section is Since the protrusion amount of the protrusion and the inclination amount of the locking piece are set so that the locking state with the locking piece of the protrusion is released below the rear end of the locking piece of the guide body, Unless the front end is lifted, the locked state between the protrusion of the slide portion and the locking piece of the upper guide body cannot be released, and the under tray can be prevented from being pulled forward more than necessary.

It is a perspective view in a state with one embodiment which applied the undertray support structure of the sheet concerning the present invention to the back seat. It is a perspective view in the different state of FIG. It is a one part perspective view of FIG. FIG. 2 is a side view of a part of FIG. 1. It is a disassembled perspective view of the under tray of FIG. It is a side view in the state with the other part of FIG. It is a side view in the other part of different state shown in FIG.

  One embodiment in which a seat undertray support structure according to the present invention is applied to a rear seat of a vehicle will be described in detail with reference to FIGS. 1 to 7. Note that front and rear and left and right in the present embodiment mean front and rear and left and right as viewed in a seated state on the seat.

  As shown in FIGS. 1 and 2, an under tray support structure is provided in the lower space of the left and right rear sheets S so that the under tray 1 can be put in and out. The under tray support structure includes a seat frame 2, An upper guide body 3a, 3b, which will be described later, provided on the seat frame 2 and a slide portion 1d, which will be described later, are attached to the under tray 1 and slide between the upper and lower slide bodies 3a, 3b.

  The seat frame 2 is configured as shown in FIG. 3 and supports the main frame 2a in the front-rear direction attached to the left and right ends of the lower surfaces of the left and right seats S, and the front ends of the left and right main frames 2a on the floor surface. The front support frame 2b and the rear support frames 2c1 and 2c2 for supporting the rear end portions of the left and right main frames 2a on the floor are provided. The front support frame 2b, the main frame 2a, and the rear support frames 2c1 and 2c2 are connected as a whole. It has a letter shape. The left and right rear support frames 2c1 and 2c2 have slightly different shapes.

  Further, as shown in FIG. 3, left and right reinforcing bars 2d, 2e are provided between the front end portions and the rear end portions of the left and right main frames 2a, respectively, and the lower end portions of the left and right front support frames 2b. A reinforcing member 2f is also provided between the reinforcing members 2f. The reinforcing member 2f is fixed to the vehicle body. A lock body 2g having a U shape in plan view and a square shape in side view is attached to the lower side of the central portion of the front reinforcing bar 2d.

  Further, as shown in FIG. 3, a guide frame 3 having a U-shaped cross section is disposed below the left and right main frames 2a, and the guide frame 3 is arranged such that the upper and lower sides of the guide frame 3 face each other. The front end is fixed to the front support frame 2b, and the rear end of the guide frame 3 is fixed to the rear end portion of the main frame 2a via the support plate 3c, whereby the upper side of the guide frame 3 is the upper guide body 3a and the lower side. Is arranged in the front-rear direction with a certain interval so as to serve as the lower guide body 3b, and as will be described in detail later, the slide portion 1d of the under tray 1 moves back and forth between the upper and lower guide bodies 3a, 3b. The under tray 1 is supported by the guide frame 3 so as to slide in the direction.

  By the way, the under tray 1 is configured as shown in FIGS. 4 and 5, and has a rectangular box-shaped tray main body 1 a having an open top surface, and a vertical width of the lower space of the sheet S that is wider than the depth of the tray main body 1 a. A front cover 1c having substantially the same vertical width and attached to the mounting portion 1b on the front surface of the tray main body 1a, and the upper and lower guides mounted so as to protrude to the left and right at the left and upper right ends of the tray main body 1a, respectively. A slide portion 1d that slides between the bodies 3a and 3b, and an operation lever 1e that has an upper end rotatably attached to a substantially central portion of the front cover 1c around a support shaft in the left-right direction.

  Two pairs of mounting pieces 6 for rotatably mounting the two rollers 5 are provided at the lower end of the mounting portion 1b so as to extend downward, and the rollers 5 are provided between the two mounting pieces 6. In a state of being disposed, the pivot shaft 7 having a large-diameter locking head at one end is inserted into both the mounting pieces 6 and the rollers 5, and a locking C-ring 8 is connected to the other end of the pivot shaft 7. The two rollers 5 are rotatably attached to the attachment portion 1c of the under tray 1 by being locked and prevented from coming off, and on a rail (not shown) laid on the floor surface below the sheet S. When both rollers 5 roll, the frictional resistance when sliding the under tray 1 is reduced, and the under tray 1 can be slid with a little force.

  Further, a lock structure that locks the under tray 1 in a state in which the under tray 1 is accommodated in the lower space of the sheet S is employed at the front portion of the under tray 1. That is, as shown in FIG. 5, a storage section having a concave cross section is formed in the upper center of the front mounting portion 1b of the under tray 1, an opening 12 is formed in the front surface of the storage section, and the upper end of the rear surface of the operation lever 1e. The rear end of the operating part 11 formed to extend rearward in the part is inserted into the opening 12, and the rear end of the operating part 11 moves up and down the opening 12 as the operating lever 1 e is rotated. . Here, the operating portion 11 of the operation lever 1e functions as an “engaging portion” in the present invention.

  A regulating body 14 that is longer than the depth of the housing portion is disposed in the housing portion so as to be movable up and down. The regulating body 14 is a hollow portion in which a vertical coil spring 15 can be disposed in the lower half portion. The upper end and the lower end of the spring 15 are respectively engaged with the lower surface of the storage portion and the upper surface of the hollow portion, and the spring 15 that biases the restricting body 14 upward in the hollow portion has the lower end portion below the restricting body 14. It is arranged in a protruding state. Further, an inclined surface 16 that is inclined obliquely backward and downward is formed at the upper end of the restricting body 14 that protrudes upward from the storage portion.

  Further, a projecting portion 17 is formed integrally with the lower end portion of the front surface of the restricting body 14 so as to project forward, and the upper surface of the projecting portion 17 is engaged with the lower surface of the rear end of the operating portion 11 of the operating lever 1e. The restricting body 14 is disposed so that the upper end of the front surface of 14 is in contact with the front portion of the lock body 2g of the seat frame 2 so as to be separable.

  At this time, in a state where the under tray 1 is accommodated in the lower space of the sheet S and the restricting body 14 is moved upward by the urging force of the spring 15, the lock body in which the upper end front portion of the restricting body 14 is attached to the seat frame 2. Abutting on the front part of 2 g, the forward sliding of the under tray 1 is restricted. In addition, when the operation lever 1e is rotated by pulling the lower end of the operation lever 1e forward from this restricted state, the rear end of the operating portion 11 of the operation lever 1e moves downward to resist the spring 15 and The protrusion 17 is pushed down, the upper front end of the restricting body 14 that is in contact with the front part of the lock body 2g moves below the lock body 2g, the restriction of the slide of the under tray 1 is released, and the under tray 1 can be slid forward.

  By the way, the structure which supports the undertray 1 so that the undertray 1 does not slide forward too much is employ | adopted in the front end of lower guide body 3a, 3b provided on the right and left of the seat frame 2. FIG. That is, as shown in FIG. 6, both guide bodies 3a and 3b are formed so as to extend slightly forward from the front end upper guide body 3a of the lower guide body 3b, and the curved surface portion 20 is formed on the upper surface of the front end of the lower guide body 3b. Is formed so that the front end of the arc-shaped locking piece 21 whose rear end is inclined obliquely downward is fixed to the front surface of the recess 22 on the lower surface of the front end portion of the upper guide body 3a.

  And the upward protrusion 24 is formed in the rear end of the slide part 1d of the under tray 1, and this protrusion 24 is locked to the rear end of the locking piece 21 when sliding forward of the under tray 1. The excessive forward sliding of the under tray 1 is restricted, and the forward protrusion of the under tray 1 due to an impact caused by a collision with the vehicle or the like is prevented.

  At this time, the vertical width W (see FIGS. 6 and 7) to the upper surface of the protrusion 24 at the rear end of the slide portion 1d is from the curved surface portion 20 of the lower guide body 3b to the locking piece 21 on the upper guide body 3a side. It is set slightly smaller than the shortest distance W1 (see FIGS. 6 and 7) (W <W1), and the front end of the under tray 1 is lifted so that the slide portion 1d is inclined as shown in FIG. The protruding amount of the protrusion 24 and the inclination of the locking piece 22 so that the upper end of the protrusion 24 is positioned below the rear end of the locking piece 22 and the locking state of the protrusion 24 with the locking piece 22 is released. The amount is set. Accordingly, the front end of the under tray 1 is lifted to release the locking state between the protrusion 24 of the slide portion 1d and the locking piece 22 of the upper guide body 3a, so that the slide portion 1d is in the upper and lower guide bodies 3a, 3b. The under tray 1 can be pulled out from the lower space of the sheet S by separating from the gap.

  Therefore, according to the above-described embodiment, the protrusion 24 is provided at the rear end of the slide portion 1d of the under tray 1, the curved portion 20 is provided at the front end portion of the lower guide body 3b, and the locking piece 21 is provided on the upper guide body 3a. The vertical width W of the rear end portion of the slide portion 1d is set to be slightly smaller than the shortest distance W1 between the curved surface portion 20 of the lower guide body 3b and the front end of the upper guide body 3a. The upper end of the projection 24 of the slide portion 1d is positioned below the rear end of the locking piece 21 of the upper guide body 3a in a state where the slide portion 1d is tilted by lifting the slide portion 1d. Since the protrusion amount of the protrusion 24 and the inclination amount of the locking piece 21 are set so that the stopped state is released, the protrusion 24 of the slide portion 1d and the locking piece of the upper guide body 3a are set unless the front end of the under tray 1 is lifted. Locking with 21 Since not be released condition, it is possible to prevent the under-tray 1 will be withdrawn forwardly than necessary.

  On the other hand, by lifting the front end of the under tray 1 and releasing the locking state between the protrusion 24 of the sliding portion 1d and the locking piece 22 of the upper guide body 3a, the sliding portion 1d is positioned between the upper and lower guide bodies 3a and 3b. Since the under tray 1 can be extracted forward from the lower space of the sheet S, the luggage can be easily stored in the under tray 1 with the under tray 1 extracted.

  In addition, since the lock structure that locks the under tray 1 in the lower space of the sheet S is provided, it is possible to prevent the under tray 1 from easily protruding forward even when an impact due to a collision or the like is applied to the vehicle. be able to.

  The present invention is not limited to the above-described embodiment, and various modifications other than those described above can be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the example in which the protrusion 24 is provided only at one place on the rear end of the slide portion 1d of the under tray 1 is shown, but a protrusion equivalent to the protrusion 24 may be provided at a plurality of places. The amount of the undertray 1 drawn out can be regulated in multiple stages.

  In the above-described embodiment, the case where the under tray 1 is accommodated in the lower space of the rear sheet S has been described, but it goes without saying that the present invention can also be applied to a passenger seat.

DESCRIPTION OF SYMBOLS 1 ... Under tray 3a, 3b ... Upper, lower guide body 7 ... Coil spring (biasing means)
20 Curved surface portion 21 ... Locking piece 24 ... Projection W ... Vertical width W1 ... Shortest distance

Claims (1)

In the under tray support structure of the seat that is provided at the lower part of the seat of the vehicle and supports the under tray for luggage storage so as to be slidable back and forth,
An upper and lower guide body attached in the front and rear direction below the seat;
A slide portion that is provided in the under tray and slides between the upper and lower guide bodies to allow sliding back and forth of the under tray;
A curved surface formed on the upper surface of the front end of the lower guide body,
A locking piece having a front end fixed to the front end portion of the upper guide body above the curved surface portion so that the rear end is inclined obliquely downward;
A projection that is provided upward at the rear end of the slide portion and that locks the rear end of the locking piece when sliding forward of the under tray, and restricts sliding of the under tray;
The vertical width of the rear end portion of the slide portion is set slightly smaller than the shortest distance between the curved surface portion and the front end of the upper guide body,
With the front end of the undertray lifted and the rear end of the slide portion inclined, the upper end of the protrusion is positioned below the rear end of the engagement piece and the engagement of the protrusion with the engagement piece An under-tray support structure for a sheet, wherein the protrusion amount of the protrusion and the inclination amount of the locking piece are set so that the stopped state is released.

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