JP2010149823A - Vehicular seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly useful vehicular seat having an undertray slidably provided under a seat cushion. <P>SOLUTION: The vehicular seat 1 includes the seat cushion 2, a support mechanism 4 for supporting a front end side of the seat cushion 2 so that a vertical position can be adjusted relative to a floor face 10, a mounting mechanism 5 for mounting a rear end side of the seat cushion 2 so as to rotate relative to the floor face 10, and the undertray 3b slidably provided under the seat cushion 2. A position of a front end side of the undertray 3b is vertically adjusted with the seat cushion 2 by the support mechanism 4, and the undertray 3b can be pulled out from under the seat cushion 2 in the front end side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle seat mounted on a vehicle such as a vehicle.

Conventionally, various vehicle seats are known. For example, a seat having a seat cushion swingably attached to a floor surface of a vehicle and a seat back standing on the seat cushion is known (see Patent Document 1). Therefore, when the weight of the occupant is applied to the seat back by inertia force during sudden braking, the seat cushion swings. Therefore, the occupant swings with the seat, and the impact that can be applied to the occupant can be reduced. Conventionally, there is also known a seat in which the rear portion of the seat cushion is rotatably attached to the floor surface and the front portion is attached so that the position can be adjusted up and down (Patent Document 2). Therefore, by setting the front side of the seat cushion to the upper position, the load placed on the seat cushion can be prevented from sliding forward.
JP-A-7-237478 JP-A-5-310069

  It is an object of the present invention to provide a vehicle seat that is more useful.

  In order to solve the above-mentioned problems, the present invention is a vehicle seat having a configuration as described in each claim. According to the first aspect of the present invention, the seat cushion, the support mechanism for supporting the one end portion side of the seat cushion so as to be vertically adjustable with respect to the floor surface of the vehicle, and the other end portion side of the seat cushion are the floor surface. And an under tray that is slidably provided below the seat cushion. The under tray is configured such that one end side thereof is vertically adjusted together with the seat cushion by a support mechanism and can be pulled out from the lower side of the seat cushion on the one end side.

  Therefore, since the under tray is located below the seat cushion, it is usually not easy to pull out. However, the under tray can be easily pulled out from the lower side of the seat cushion because the side to be pulled out is positioned upward together with the seat cushion.

  According to the second aspect of the present invention, the under tray has a bottom portion at a position lower than the upper surface of the convex portion of the floor surface adjacent to the drawer direction. One end portion side of the bottom portion is moved upward from the upper surface of the convex portion by the support mechanism, whereby the under tray can be pulled out above the convex portion. Therefore, the under tray can be pulled out above the convex portion of the floor surface. On the other hand, since the under tray has a bottom portion at a position lower than the upper surface of the convex portion, the storage capacity can be set large.

  According to the third aspect of the present invention, the support mechanism is mounted on the convex portion of the floor surface adjacent to the under-tray drawing direction. Therefore, the support mechanism is attached to the convex portion having a relatively strong strength as compared with other portions of the floor surface.

  According to the fourth aspect of the present invention, the support mechanism includes a base member attached to the floor surface, a pin provided on one member side of both the base member and the seat cushion, and a pin provided on the other member side. In particular, it has a long groove that guides and supports in the vertical direction, and a lock member that is movably provided on the other member side and that engages and disengages from the pin by moving. The lock member has a plurality of lock claws extending toward the long groove, and the predetermined lock claws are engaged with the pin to hold the pin at a predetermined vertical position with respect to the long groove. When the seat receives an impact, the seat cushion rotates around one end side and the other end side moves up and down, and the pin can move relative to the long groove while sequentially deforming the plurality of lock claws. .

  Therefore, the one end side of the seat cushion can be adjusted to a plurality of vertical positions by the support mechanism. Further, when the sheet receives an impact, the pins move relative to the long groove while sequentially deforming the plurality of lock claws, so that a part of the impact can be received in order by the lock claws. Thereby, it is possible to suppress one member of the sheet from being locally deformed by an impact.

(Embodiment 1)
The first embodiment will be described with reference to FIGS. As shown in FIG. 1, the seat 1 is a vehicle seat mounted on a vehicle such as a vehicle, and includes a seat cushion 2 and a seat back 6. The seat cushion 2 and the seat back 6 have frames 2a and 6a, and the frames 2a and 6a are connected by a reclining device 8 so that the angle can be adjusted.

  As shown in FIGS. 1 and 2, a slide rail 7 and a mounting bracket 9 are provided below the seat cushion 2. The slide rail 7 has a lower rail 7a and an upper rail 7b. The front and rear portions of the lower rail 7 a are attached to the floor surface 10 by the attachment bracket 9. The upper rail 7b is slidably attached to the lower rail 7a. A support mechanism 4 and an attachment mechanism 5 are provided between the upper rail 7 b and the seat cushion 2.

  As shown in FIGS. 1 and 2, the support mechanism 4 is a mechanism that supports the front end portion side of the seat cushion 2 so that the position of the seat cushion 2 can be adjusted vertically with respect to the floor surface 10, and the front end portion of the upper rail 7b and the front end of the frame 2a. It is provided between the parts. The support mechanism 4 includes a base 4a, a pin 4c, and a lock member 4d as shown in FIGS. The base 4a is erected on the upper surface of the upper rail 7b. The base 4a has a long groove 4b extending vertically, and a pin 4c is inserted into the long groove 4b.

  The pin 4c penetrates the frame 2a as shown in FIGS. 3 and 4, and one end is inserted into the long groove 4b. Accordingly, the pin 4c is guided and supported up and down by the long groove 4b. The upper end of the lock member 4d is rotatably attached to the base 4a by the attachment pin 4d1. The lock member 4d has a plurality of lock claws 4d2 that can be engaged with the pin 4c. The plurality of lock claws 4d2 are positioned at a predetermined interval in the vertical direction and extend from the lock member main body toward the long groove 4b.

  Between the lock member 4d and the base 4a, there is provided a spring 4e that urges the lock member 4d counterclockwise as shown in FIG. Accordingly, the lock member 4d is rotated by the biasing force of the spring 4e, and one of the lock claws 4d2 is engaged with the pin 4c. Thereby, the vertical movement of the pin 4c is regulated by the lock claw 4d2.

  As shown in FIG. 3, a cable 11 for releasing the lock member 4d is connected to the front end portion of the lock member 4d. The cable 11 has an outer cable 11a and an inner cable 11b inserted through the outer cable 11a. One end of the outer cable 11a is attached to the base 4a, and one end of the inner cable 11b is attached to the lock member 4d. The other end of the cable 11 is connected to an operation lever 12 provided on the front side of the seat 1 or the like. Therefore, by operating the operation lever 12, the lock member 4d can be unlocked from the pin 4c.

  As shown in FIGS. 1 and 2, the attachment mechanism 5 is a mechanism for rotatably attaching the rear end portion side of the seat cushion 2 to the floor surface 10, and includes a rear end portion of the upper rail 7b and a rear end portion of the frame 2a. Between. The attachment mechanism 5 includes a base 5a attached to the upper rail 7b, and a pin 5b that rotatably connects the base 5a and the frame 2a of the seat cushion 2. Therefore, the seat cushion 2 can be tilted around the rear end portion side, and the front end portion side can be vertically adjusted by the support mechanism 4. Further, the seat cushion 2 can be adjusted in position forward and backward with respect to the floor surface 10 by the slide rail 7.

  A tray body 3 is provided below the seat cushion 2 as shown in FIGS. The tray body 3 has a tray cover 3a and an under tray 3b. The tray cover 3a is attached to the lower side of the seat cushion 2 so as not to move. The under tray 3b is slidably attached to the tray cover 3a. The under tray 3b slides in a direction substantially parallel to the lower surface of the seat cushion 2, and can be taken in and out of the tray cover 3a from the front opening of the tray cover 3a.

  As a result, the under tray 3b slides between the storage position shown in FIG. 1 which is the lower side of the seat cushion 2 and the drawing position shown in FIG. The under tray 3b has a storage recess 3b1 for storing things. In the storage recess 3b1, an object can be taken in and out from above in the pulling-out position. The under tray 3b can be adjusted in the vertical direction on the front end side by the support mechanism 4, and the drawer side can be adjusted in the vertical direction.

  As described above, as shown in FIGS. 1 and 2, the under tray 3 b is vertically adjusted at one end side together with the seat cushion 2 by the support mechanism 4, and is pulled out from the lower side of the seat cushion 2 on the one end side. It is the structure to get. Therefore, since the under tray 3b is located below the seat cushion 2, it is usually not easy to pull it out. However, the under tray 3b can be easily pulled out from the lower side of the seat cushion 2 by setting the side to be pulled out upward together with the seat cushion 2.

  Further, the support mechanism 4 has a lock member 4d having a plurality of lock claws 4d2 as shown in FIG. When the seat 1 receives an impact, the seat cushion 2 rotates about the rear end side and the front end side moves in the vertical direction, and the pin 4c deforms the plurality of lock claws 4d2 in order to make a long groove. 4b can be relatively moved (see FIGS. 1 and 3).

  Therefore, one end side of the seat cushion 2 can be adjusted to a plurality of vertical positions by the support mechanism 4 as shown in FIG. Further, when the sheet 1 receives an impact, the pin 4c moves relative to the long groove 4b while deforming the plurality of lock claws 4d2 in order, so that a part of the impact can be received in order by the lock claws 4d2. Thereby, it can suppress that one member of sheet 1 deforms locally by an impact. For example, it is possible to prevent the weight of the user from being applied to the seat back 6 by an inertial force due to an impact from the rear, and only the lower portion of the seat back 6 is prevented from bending greatly backward. Thereby, it is possible to suppress a local impact on the user and a reduction in the space of the rear seat.

  The seat 1 can be changed to a normal mode shown in FIG. 1 and an easy mode shown in FIG. 2 according to the user's preference. The seat back 6 is erected at the rear portion of the seat cushion 2 as shown in FIGS. Therefore, the seat cushion 2 can be easily rotated around the rear end side by pushing the seat back 6 back and forth. Thus, the vertical position of the front end portion of the seat cushion 2 can be easily adjusted.

(Embodiment 2)
The second embodiment will be described with reference to FIGS. The second embodiment is formed in substantially the same manner as the first embodiment. However, the second embodiment is different from the first embodiment in that the tray body 23 is provided below the seat cushion 2 via the slide rail 27. Hereinafter, the second embodiment will be described focusing on the differences.

  The seat 21 has a seat cushion 22 and a seat back 26 as shown in FIGS. A slide rail 27 is attached to the lower side of the seat cushion 22, and a support mechanism 24 and an attachment mechanism 25 are provided between the slide rail 27 and the floor surface 10. The floor surface 10 has convex portions 10a and 10b that are higher than the other portions of the floor surface 10 and have higher strength. The convex portions (cross members) 10a and 10b extend in the width direction of the vehicle, the support mechanism 24 is provided on the front convex portion 10a, and the mounting mechanism 25 is provided on the rear convex portion. .

  The support mechanism 24 is formed in the same manner as the support mechanism 4 shown in FIG. 3, and has a base 24a and a pin 24c as shown in FIGS. The base 24a has a long groove 24b and is erected on the convex portion 10a. The pin 24c is attached to the attachment portion 27c at the front lower portion of the lower rail 27a, and one end thereof is inserted into the long groove 24b of the base 24a. Therefore, the position of the front end portion of the seat cushion 22 can be adjusted up and down by the support mechanism 24.

  As shown in FIGS. 5 and 6, the attachment mechanism 25 has a base 25a standing on the convex portion 10b and an attachment portion 25b rotatably connected to the base 25a by a pin 25c. The attachment portion 25b is attached to the lower rear portion of the lower rail 27a of the slide rail 27. The slide rail 27 has a lower rail 27 a and an upper rail 27 b, and the upper rail 27 b is attached to the lower part of the seat cushion 22. The tray body 23 is attached to the lower side of the lower rail 27a.

  As shown in FIGS. 5 and 6, the tray body 23 includes a tray cover 23a and an under tray 23b. The tray cover 23a is attached to the lower rail 27a so as not to move, and is installed between the front and rear of the convex portions 10a and 10b. The under tray 23b has a bottom 23b1 at a position lower than the top surfaces of the convex portions 10a and 10b. Since the tray body 23 does not move back and forth with the lower rail 27 a relative to the floor surface 10, the upper rail 27 b can move back and forth relative to the floor surface 10 without being obstructed by the tray body 23.

  When the under tray 23b is pulled out from the tray cover 23a, the support mechanism 24 moves the front end side of the tray body 23 together with the seat cushion 22 to the upper position as shown in FIG. As a result, the front end portion of the bottom 23b1 of the under tray 23b becomes higher than the upper surface of the convex portion 10a, and the under tray 23b can be drawn forward from the tray cover 23a.

  As described above, the under tray 23b has the bottom 23b1 at a position lower than the upper surface of the convex portion 10a of the floor 10 adjacent in the pull-out direction as shown in FIGS. One end portion side of the bottom 23b1 is moved upward from the upper surface of the convex portion 10a by the support mechanism 24, whereby the under tray 23b can be pulled out above the convex portion 10a. Therefore, the under tray 23b can be pulled out above the convex portion 10a of the floor surface 10. On the other hand, since the under tray 23b has the bottom 23b1 at a position lower than the upper surface of the convex portion 10a, the storage capacity can be set large.

  Moreover, the support mechanism 24 is attached on the convex part 10a of the floor surface 10 adjacent to the drawing-out direction of the undertray 23b. Accordingly, the support mechanism 24 is attached to the convex portion 10a having a relatively strong strength as compared with other portions of the floor surface 10.

(Embodiment 3)
A third embodiment will be described with reference to FIGS. The third embodiment is formed in substantially the same manner as the second embodiment. However, the second embodiment is different from the second embodiment in that the slide rail 27 shown in FIG. 5 is not provided. Hereinafter, Embodiment 3 will be described focusing on the differences.

  The seat 31 has a seat cushion 32 and a seat back 36 as shown in FIGS. The seat cushion 32 has a lower base 32a at the lower portion. The front and rear portions of the lower base 32 a are attached to the floor surface 10 by the support mechanism 34 and the attachment mechanism 35. The support mechanism 34 is formed in the same manner as the support mechanisms 4 and 24 shown in FIGS. 3 and 5, and has a base 34a and a pin 34c as shown in FIGS. 7 and 8, and the pin 34c is the lower base 32a. It is attached to the attachment part 32b of the front lower part.

  The attachment mechanism 35 is formed in the same manner as the attachment mechanism 25 shown in FIG. 5, and has a base 35a and an attachment portion 35b as shown in FIGS. The base 35a and the attachment portion 35b are rotatably connected by a pin 35c. The attachment portion 35b is attached to the lower rear portion of the lower base 32a, and the tray body 23 is attached to the lower base 32a.

  The tray body 33 includes a tray cover 33a and an under tray 33b. The tray cover 33a is attached to the lower side of the lower base 32a so as not to move, and is installed between the front and rear of the convex portions 10a and 10b. The under tray 33b is slidably attached to the tray cover 33a and has a bottom 33b1 at a position lower than the top surfaces of the convex portions 10a and 10b. When the under tray 33b is pulled out from the tray cover 33a, the support mechanism 34 moves the tray body 33 and the front end side of the seat cushion 32 upward as shown in FIG. Accordingly, the front end portion of the bottom portion 33b1 of the under tray 33b is higher than the upper surface of the convex portion 10a. Thus, the under tray 33b can be drawn forward from the tray cover 33a.

(Other embodiments)
The present invention is not limited to the first to third embodiments, and may be the following forms.
(1) The under trays 3b, 23b, 33b of the first to third embodiments are attached to the seat cushions 2, 22, 32 side through the tray covers 3a, 23a, 33a. However, the under tray may be attached to the seat cushion or the slide rail so as to be slidable directly without using the tray cover.
(2) The seat cushions 2, 22, and 32 of the first to third embodiments are vertically adjusted on the front end side with the rear end side as the center of rotation. However, the seat cushion may be configured such that the rear end side is vertically adjusted with the front end side as the rotation center, and the under tray is pulled out to the rear side of the seat cushion. Alternatively, the seat cushion may be configured such that either the left or right one end side is the rotation center, the other end side is vertically adjusted, and the under tray is pulled out from the lower side of the seat cushion on the other end side.
(3) The support mechanisms 4, 24, and 34 according to the first to third embodiments have a base provided on the floor surface side and a pin provided on the seat cushion side. However, the support mechanism may include a pin provided on the floor surface side and a base provided on the seat cushion side, and the pin may be guided and supported relatively up and down in a long groove formed in the base. .
(4) The long grooves of the support mechanisms 4, 24, and 34 according to the first to third embodiments are holes that penetrate the bases 4a, 24a, and 34a in the thickness direction. However, the long groove may be a concave portion provided in the base.

It is a left view of a vehicle seat. It is a left side view of a vehicle seat when the front end portion side of the seat cushion is set to the upper position and the under tray is pulled out. It is a left view of a part of slide rail and a support mechanism. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3. 6 is a left side view of a vehicle seat according to Embodiment 2. FIG. It is a left view of the vehicle seat which concerns on Embodiment 2 when the front-end part side of a seat cushion is made into an upper position, and the under tray was pulled out. FIG. 10 is a left side view of a vehicle seat according to a third embodiment. It is a left view of the vehicle seat which concerns on Embodiment 3 when the front-end part side of a seat cushion is made into an upper position, and the under tray was pulled out.

Explanation of symbols

1, 2, 31 ... Seats 2, 22, 32 ... Seat cushions 3, 23, 33 ... Tray bodies 3a, 23a, 33a ... Tray covers 3b, 23b, 33b ... Under trays 4, 24, 34 ... Support mechanisms 4a, 24a , 34a ... Base 4b, 24b ... Long grooves 4c, 24c, 34c ... Pin 4d ... Lock member 4d2 ... Lock claw 5, 25, 35 ... Mounting mechanism 6, 26, 36 ... Seat back 7, 27 ... Slide rail 9 ... Mounting bracket 10 ... Floor surfaces 10a, 10b ... Projections 23b1, 33b1 ... Bottom

Claims (4)

A vehicle seat,
A seat cushion, a support mechanism that supports one end of the seat cushion so as to be vertically adjustable with respect to a vehicle floor, and the other end of the seat cushion is rotatably attached to the floor. An attachment mechanism, and an under tray slidably provided below the seat cushion,
The under tray is configured such that one end side thereof is vertically adjusted together with the seat cushion by the support mechanism and can be pulled out from the lower side of the seat cushion on the one end side. Sheet. The vehicle seat according to claim 1,
The under tray has a bottom portion at a position lower than the upper surface of the convex portion of the floor surface adjacent to the drawer direction,
The vehicle seat according to claim 1, wherein one end portion side of the bottom portion is moved above the upper surface of the convex portion by a support mechanism, whereby the under tray can be pulled out above the convex portion. The vehicle seat according to claim 2,
The vehicle seat according to claim 1, wherein the support mechanism is mounted on a convex portion of the floor surface adjacent to the under tray drawing direction. The vehicle seat according to any one of claims 1 to 3,
The support mechanism is provided with a base member attached to the floor, a pin provided on one member side of both the base member and the seat cushion, and provided on the other member side, and relatively guides and supports the pin in the vertical direction. A long groove and a lock member that is movably provided on the side of the other member and that engages and disengages the pin by moving;
The lock member has a plurality of lock claws extending toward the long groove, and the predetermined lock claw is engaged with the pin to hold the pin at a predetermined vertical position with respect to the long groove. ,
When the seat receives an impact, the seat cushion rotates about one end side and the other end side moves up and down, and the pin sequentially deforms the plurality of locking claws while the long groove A vehicle seat characterized by being able to move relative to the vehicle.

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