JP2020192953A - Vehicle seat - Google Patents

Abstract

To provide a vehicle seat capable of securing rigidity after assembling a seat side shield.SOLUTION: A seat 1 is provided with an outer shield 40 covering a seat cushion 10 supporting a seat back 20 from the outside in a seat width direction. The seat 1 includes: a releasing pin 32 which projects from a reclining hinge center 31 of a recliner 30 as a connection part between the seat back 20 and the seat cushion 10 to the outside in the seat width direction; a covering part 41 in which the outer shield 40 is fitted to the seat cushion 10 to cover the recliner 30 from the outside in the seat width direction; and a pin connection part 43 which is connected to the releasing pin 32 via a pin so as to release rotation around the axis of the releasing pin 32.SELECTED DRAWING: Figure 3

Description

The present invention relates to a vehicle seat. More specifically, the present invention relates to a vehicle seat provided with a seat side shield that covers a base that supports the seat back from the outside in the seat width direction.

Patent Document 1 discloses a configuration in which a resin seat side shield is provided on the side portion of the seat cushion. The seat side shield is fixed to the side of the seat cushion. The seat side shield is provided so as to cover the connecting portion between the seat back and the seat cushion from the outside. As a result, the appearance of the department is improved.

JP-A-2017-30488

At the connection between the seat back and the seat cushion, if the member on the seat cushion side is outside the member on the seat back side, the seat side shield should be fixed to the member on the seat cushion side to ensure the rigidity after assembly. Can be done. However, when the member on the seat back side is outside the member on the seat cushion side, it becomes difficult to assemble the seat side shield to the member on the seat cushion side. Therefore, the present invention provides a vehicle seat capable of ensuring rigidity after assembling the seat side shield.

In order to solve the above problems, the vehicle seat of the present invention takes the following means.

That is, the vehicle seat of the present invention is a vehicle seat provided with a seat side shield that covers the base that reclinably supports the seat back from the outside in the seat width direction. The vehicle seat has a protruding pin that projects outward from the reclining hinge center of the seat back in the seat width direction with respect to the seat back and the base. A seat side shield is attached to the base to cover the connecting part between the seat back and the base from the outside in the seat width direction, and a pin connected to the protruding pin so as to allow rotation around the axis of the protruding pin to escape. It has a connecting portion and.

According to the above configuration, by connecting the seat side shield to the protruding pin as well as the base, the rigidity of the seat side shield after assembly to the base can be increased. The seat side shield is always supported in place by the protruding pins, regardless of whether the protruding pins rotate about an axis.

Further, the vehicle seat of the present invention may be further configured as follows. The pin connecting portion is pin-connected so as to allow the rotation of the mounting plate to escape to the mounting plate that is integrally assembled with the protruding pin.

According to the above configuration, by setting the mounting target of the seat side shield as the mounting plate, the mounting structure of the seat side shield can be simplified as compared with the configuration of mounting on the protruding pin. As a result, the seat side shield can be more easily and reliably assembled to the protruding pin.

Further, the vehicle seat of the present invention may be further configured as follows. The vehicle seat also has a reclining that connects the seat back to the base in a reclining adjustable manner. The protruding pin is a release pin that unlocks the reclining by rotating around its axis.

According to the above configuration, the structure for assembling the seat side shield to the protruding pin can be rationalized.

Further, the vehicle seat of the present invention may be further configured as follows. The connecting portion between the seat back and the base comprises a connecting portion between the side frame of the seat back and the connecting frame of the base arranged so as to face the inside in the seat width direction of the side frame.

According to the above configuration, even if the member facing the covering portion of the seat side shield is the side frame of the seat back, the member that does not follow the reclining movement of the seat back without increasing the size of the seat side shield ( It can be connected to a protruding pin).

Further, the vehicle seat of the present invention may be further configured as follows. The pin connecting portion is formed so as to project from the inner side surface of the covering portion in the sheet width direction.

According to the above configuration, the covering portion of the seat side shield can be connected to the protruding pin so as to be more rigid after assembly.

It is a perspective view which shows the vehicle seat which concerns on 1st Embodiment. It is a side view which enlarged and viewed from the left side of the connection part by the recliner of FIG. FIG. 2 is a cross-sectional view taken along the line III-III of FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. 1 to 3. INDUSTRIAL APPLICABILITY According to the present invention, the rigidity of the outer shield 40 assembled to the seat 1 of an automobile can be ensured. The outer shield 40 corresponds to the "seat side shield" of the present invention. In the following description, when each direction such as front-back, up-down, left-right, etc. is shown, it means each direction shown in each figure. Here, it is assumed that the forward direction shown in the figure coincides with the traveling direction of the automobile. When it is indicated as the sheet width direction, it shall indicate the left-right direction of the sheet 1.

<Sheet 1>
First, the basic configuration of the sheet 1 will be described (see FIG. 1). The seat 1 of the present embodiment is configured as a left side seat in the second row of an automobile provided with three rows of seats. The seat 1 includes a seat cushion 10 which is a seating portion, a seat back 20 which is a backrest portion, and a slide rail 50 which slidably connects the seat cushion 10 to the floor F. The seat cushion 10 corresponds to the "base" of the present invention.

Here, the slide rail 50 is composed of a front-rear slide rail 51 and a left-right slide rail 52. The front and rear slide rails 51 are provided on the floor F, and the left and right slide rails 52 are provided between the front and rear slide rails 51 and the bottom surface of the seat cushion 10. The front-rear slide rail 51 allows the seat 1 to be adjusted in the front-rear direction with respect to the floor F. The left and right slide rails 52 allow the seat 1 to be adjusted in the left-right direction with respect to the floor F. The seat 1 slides to the rear side and is configured to be capable of interfering with the tire house TH located on the left rear side of the seat 1. However, the seat 1 slides to the right and can avoid interference with the tire house TH. Here, as will be described later, the seat 1 has a configuration in which the seat cushion 10 is prevented from protruding to the left side. Therefore, the seat 1 can avoid interference with the tire house TH without sliding significantly to the right.

<Seat cushion 10>
The seat cushion 10 includes two side frames 11 forming side skeletons on both the left and right sides thereof. Each side frame 11 is composed of a plate-shaped member elongated in the front-rear direction extending from the front end portion to the rear end portion of the seat cushion 10. Each side frame 11 is provided in a state of being erected so that its surfaces face each other in the seat width direction. A reclining plate 12 is integrally connected to the rear end portion of each side frame 11. The reclining plate 12 corresponds to the "connecting frame" of the present invention.

Each reclining plate 12 is made of a plate-shaped member having a thickness thicker than that of each side frame 11, and is a portion connected to each reclining 30 described later. The left side of the seat cushion 10 is covered from the left side by a resin outer shield 40 (see FIG. 1). Although not shown, the seat cushion 10 is also covered from the right side by a resin inner shield.

<Seat back 20>
The seat back 20 also includes two side frames 21 forming lateral skeletons on both the left and right sides thereof. Each side frame 21 is composed of a vertically long plate-shaped member extending from the upper end portion to the lower end portion of the seat back 20. The side frames 21 are provided so that their surfaces face each other in the seat width direction. Each side frame 21 is connected to each reclining plate 12 via each reclining 30. By the connection, each side frame 21 is brought into a state in which the angle in the front-rear direction with respect to each reclining plate 12 can be fixed or changed via each reclining 30.

Each side frame 21 is always rotationally biased to the front side by each spiral spring 14 hooked between the reclining plate 12 and the reclining plate 12. By the spiral spring 14, the seat back 20 is raised so as to rotate forward in a state where the angle of the side frame 21 can be changed. The raised seat back 20 is stopped by being pressed against the back of the seated occupant. Therefore, the seat back 20 can adjust the backrest angle so as to follow the front-rear position of the back of the seated occupant.

<Connecting structure of seat cushion 10 and seat back 20>
Next, the connection structure between the left and right seat cushions 10 and the seat back 20 will be described in detail. Although not shown, the reclining plate 12 on the right side of the seat cushion 10 is arranged so as to be located on the right side with respect to the side frame 21 on the right side of the seat back 20. The reclining plate 12 on the right side is connected to the side frame 21 by a reclining 30 provided between them.

On the other hand, the reclining plate 12 on the left side of the seat cushion 10 is arranged so as to be located on the right side with respect to the side frame 21 on the left side of the seat back 20 (see FIG. 3). The reclining plate 12 on the left side is connected to the side frame 21 by a reclining 30 provided between them. As described above, the seat 1 has a configuration in which the seat cushion 10 is prevented from protruding to the left side on the left side. As a result, as described above, the seat 1 does not slide significantly to the right side and can avoid interference with the tire house TH.

<Spiral spring 14>
Next, the spiral spring 14 that constantly rotationally biases the seat back 20 to the front side will be described. The radial inner end of each spiral spring 14 is hooked on each bracket 13 projecting from each reclining plate 12 in the seat width direction. The radial outer end of each spiral spring 14 is engaged with each locking portion 22 projecting from each side frame 21 in the seat width direction. Specifically, the bracket 13 on the right side of the seat cushion 10 projects from the right side surface portion of the reclining plate 12 on the right side toward the right side. The locking portion 22 on the right side of the seat back 20 projects from the right side surface portion of the right side frame 21 toward the right side. On the other hand, the bracket 13 on the left side of the seat cushion 10 projects from the right side surface portion of the reclining plate 12 on the left side toward the right side (see FIG. 3). The locking portion 22 on the left side of the seat back 20 projects from the right side surface portion of the left side frame 21 toward the right side (see FIG. 3).

<Recliner 30>
Next, the configuration of the reclining 30 will be described. The recliner 30 in the present embodiment has substantially the same configuration as the known configuration disclosed in documents such as JP-A-2016-215999. Therefore, the description of the specific configuration of each part of the reclining 30 will be omitted. Each recliner 30 is composed of a disk-shaped member in which two disks are rotatably assembled with each other in the axial direction. Each reclining hinge center 31 that serves as the center of rotation is provided with each release pin 32 that penetrates each reclining 30 in the axial direction (seat width direction). The release pin 32 corresponds to the "protruding pin" of the present invention. Each recliner 30 is provided with a locking mechanism (not shown) capable of locking the relative rotation of the two disks inside. Each locking mechanism is urged to always lock by a spring (not shown) attached to each reclining 30. The lock by each of the lock mechanisms can be released by operating a lever (not shown) provided on the left side of the seat cushion 10 by the user.

Specifically, each lock mechanism is held in a state in which the relative rotation of each of the two disks is locked by the bias of the spring when the lever is not operated. By operating the lever, each release pin 32 connected to the lever via each cable is operated so as to rotate about an axis. By the rotation of each release pin 32, each lock mechanism is operated to release the lock against the bias of the spring. That is, by operating the lever, the fixing of the backrest angle of the seat back 20 is released. By the release, the seat back 20 can be tilted in the front-rear direction around the reclining hinge center 31. On the other hand, when the operation of the lever is stopped, the locking mechanism of each reclining 30 is locked by the urging force of the spring. As a result, the backrest angle of the seat back 20 is fixed at that position.

Next, the release pin 32 of the reclining 30 on the left side of the seat 1 will be described in detail. The release pin 32 of the reclining 30 on the left side has a disc-shaped seat surface portion 35, a shaft portion 33 protruding from the center of the seat surface portion 35 toward the right side, and an extension portion protruding from the center of the seat surface portion 35 toward the left side. 34 and.

The release pin 32 is provided on the reclining 30 as follows. First, the shaft portion 33 is inserted into the reclining hinge center 31 of the reclining 30 that connects the side frame 21 and the reclining plate 12 so as to penetrate from the left side to the right side. By the same insertion, the release pin 32 is inserted until the shaft portion 33 comes out of the bracket 13 from the left side to the right side. The insertion of the shaft portion 33 is restricted at a position where the seat surface portion 35 abuts on the left side frame 21 of the seat back 20 from the left side. Next, the C ring 36 is attached to a portion of the shaft portion 33 protruding to the right from the bracket 13. As a result, the shaft portion 33 is prevented from coming off at the inserted position. A lever (not shown) and an operation arm connected via a cable are further connected to a portion of the shaft portion 33 protruding to the right from the bracket 13.

A disk-shaped mounting plate 38 to which the outer shield 40 can be mounted is integrally attached to the extension portion 34. The mounting plate 38 is assembled to the extension portion 34 as follows. That is, from the left side of the extension portion 34, the through hole provided in the center of the mounting plate 38 is fitted into the extension portion 34. The left end of the extension 34 is crimped so as to sandwich the mounting plate 38 between the left end and the seat 35 (caulking portion 37). As described above, the mounting plate 38 is integrally assembled to the extension portion 34. The mounting plate 38 rotates integrally with the release pin 32 with respect to the rotation of the release pin 32 around the axis. The mounting plate 38 has an outer diameter that projects larger in the radial direction than the seat surface portion 35 and the crimped portion 37. As a result, the outer shield 40 can be attached to the outer peripheral edge of the attachment plate 38 that projects in the radial direction.

<Outer shield 40>
Next, the configuration of the outer shield 40 will be described. The outer shield 40 is made of a molded product of a resin member such as PP. The outer shield 40 is formed in a substantially plate shape that is long in the front-rear direction. The outer shield 40 is assembled to the side frame 11 in an upright state so as to cover the left side frame 11 of the seat cushion 10 from the left side (see FIG. 1). The outer shield 40 includes a covering portion 41 that covers the connecting portion between the seat cushion 10 and the seat back 20 via the reclining 30 and a pin connecting portion 43 that can be attached to the mounting plate 38.

The covering portion 41 forms the rear region of the outer shield 40, and has a bulging shape that bulges upward from the front region in a side view (see FIG. 2). The covering portion 41 includes an overhanging portion 42 that projects in a flange shape from the peripheral edge thereof toward the right side (see FIG. 3). By the overhanging portion 42, the covering portion 41 can cover the connecting portion so as to surround the connecting portion from the front-rear direction and the upward direction.

The pin connecting portion 43 is composed of an upper locking claw 44 and a lower locking claw 45 that can be hooked on the mounting plate 38. The upper locking claw 44 and the lower locking claw 45 are plate-shaped members protruding from the right side surface portion of the covering portion 41 toward the right side, respectively. The upper locking claw 44 and the lower locking claw 45 project so as to face each other in the vertical direction. An opening 46 that can pass through in the front-rear direction is formed between the upper locking claw 44 and the lower locking claw 45. The upper locking claw 44 and the lower locking claw 45 have a claw shape in which their respective tips protruding to the right side bend in a direction approaching each other. The upper locking claw 44 and the lower locking claw 45 have a uniform length extending in the front-rear direction. This length is set to have at least the same length as the diameter of the mounting plate 38. As a result, the upper locking claw 44 and the lower locking claw 45 can be hooked on the mounting plate 38 in the front-rear direction. By the same hooking, the upper locking claw 44 and the lower locking claw 45 can further secure the rigidity after assembling the covering portion 41 having a bulging shape that partially bulges upward of the outer shield 40. ..

The cover portion 41 of the outer shield 40 is fixed by attaching the pin connecting portion 43 to the mounting plate 38 as follows. First, the covering portion 41 is inserted into the mounting plate 38 from the front direction or the rear direction and set in the opening 46 between the upper locking claw 44 and the lower locking claw 45 of the pin connecting portion 43. .. By the above insertion, the upper locking claw 44 and the lower locking claw 45 of the pin connecting portion 43 are set in a state in which the claws at their tips are hooked on the outer peripheral edge of the mounting plate 38 from the right side, respectively. Then, the pin connecting portion 43 is set in a state in which the upper locking claw 44 is covered on the mounting plate 38 from above. Further, the pin connecting portion 43 is set so that the lower locking claw 45 is covered on the mounting plate 38 from below. By the above assembly, the covering portion 41 of the outer shield 40 is set in a state where the pin connecting portion 43 is supported by the mounting plate 38 and the rotation of the mounting plate 38 is allowed to escape.

<Summary>
Summarizing the above, the sheet 1 of the present embodiment has the following configuration. That is, it is a vehicle seat provided with a seat side shield (40) that covers the base (10) that reclinably supports the seat back (20) from the outside in the seat width direction. The vehicle seat has a protruding pin (32) that projects outward from the reclining hinge center (31) of the seat back (20) with respect to the seat back (20) and the base (10) in the seat width direction. A seat side shield (40) is attached to the base (10) to cover the connecting portion between the base and the seat back from the outside in the seat width direction, and a protruding pin (32) on the protruding pin (32). It has a pin connecting portion (43) which is pin-connected so as to allow rotation around the axis of the above.

With such a configuration, the seat side shield (40) can be assembled to the base (10) by connecting the seat side shield (40) to the protruding pin (32) in addition to the base (10). Later rigidity can be increased. The seat side shield (40) is always supported in place by the protruding pin (32) regardless of whether the protruding pin (32) rotates about an axis.

Further, according to this configuration, the pin connecting portion (43) is pin-connected so as to allow the rotation of the mounting plate (38) to escape to the mounting plate (38) integrally assembled to the protruding pin (32). Will be done.

With such a configuration, the seat side shield (40) can be mounted on the seat side shield (40) as compared with the configuration in which the seat side shield (40) is mounted on the protruding pin (32). The mounting structure can be simplified. As a result, the seat side shield (40) can be more easily and reliably assembled to the protruding pin (32).

Further, according to this configuration, the vehicle seat further has a reclining (30) that connects the seat back (20) to the base (10) in a reclining adjustable manner. The protruding pin (32) is a release pin (32) that unlocks the recliner (30) by rotating around its axis.

With such a configuration, the structure for assembling the seat side shield (40) to the protruding pin (32) can be rationalized.

Further, according to this configuration, the connecting portion between the base (10) and the seat back (20) faces the side frame (21) of the seat back (20) and the inside of the side frame (21) in the seat width direction. It is composed of a connecting portion of the base (10) arranged so as to be connected to the connecting frame (12).

With such a configuration, even if the member facing the covering portion (41) of the seat side shield (40) is the side frame (21) of the seat back (20), the seat side shield (40) can be connected to a member (protruding pin (32)) that does not follow the reclining movement of the seat back (20) without increasing the size.

Further, according to this configuration, the pin connecting portion (43) is formed so as to project from the inner side surface of the covering portion (41) in the sheet width direction.

With such a configuration, the covering portion (41) of the seat side shield (40) can be connected to the protruding pin (32) so as to be more rigid after assembly.

<Other Embodiments>
Although the present invention has been described above using one embodiment, the present invention can be implemented in various forms other than the present embodiment.

1. 1. The vehicle seat of the present invention can be widely applied to vehicles other than automobiles such as railways, and seats used for various vehicles such as aircraft and ships.

2. 2. In the above embodiment, the seat cushion 10 is illustrated as an example of the base. However, the base may be a bracket provided directly on the floor, or may be configured such that the seat back is directly supported by the bracket.

3. 3. In the above embodiment, the configuration in which the reclining plate 12 of the seat cushion 10 is located on the right side (inside in the seat width direction) of the side frame 21 of the seat back 20 on the left side of the seat 1 is illustrated. However, the connecting frame of the base may be configured to be located on the left side (outside in the seat width direction) of the side frame of the seat back. Even with such a configuration, the seat side shield is pin-connected to the protruding pin protruding outward from the reclining, so that the rigidity after the seat side shield is assembled can be increased.

4. Recliners may be provided on either the left or right side of the vehicle seat. In that case, the protruding pin may be a hinge pin that rotatably connects the seat back to a base such as a seat cushion, instead of the release pin that unlocks the reclining. In the above embodiment, the mounting plate 38 is integrally assembled to the extension portion 34 of the release pin 32 so as to be sandwiched between the seat surface portion 35 and the caulking portion 37. However, the mounting plate may be integrally assembled to the protruding pin by press fitting or welding.

5. In the above embodiment, as an example of the seat side shield, an outer shield 40 that covers the side frame 11 on the left side of the seat cushion 10 from the outside in the seat width direction is illustrated. However, the seat side shield may be an inner shield that covers the side frame on the right side of the base from the outside in the seat width direction. In the above embodiment, the outer shield 40 is assembled to the mounting plate 38 so as to allow the rotation around the axis of the mounting plate 38 integrally assembled to the release pin 32 to escape. However, the mounting plate may be integrally assembled to the seat side shield and rotatably attached to the protruding pin so as to allow rotation around the axis of the protruding pin to escape. Further, the seat side shield may be directly connected to the projecting pin so as to allow the rotation of the projecting pin around the axis to escape without using the mounting plate.

6. In the above embodiment, the pin connecting portion 43 illustrates the configuration including the upper locking claw 44 and the lower locking claw 45. However, the pin connecting portion may be configured to include only the upper locking claw. Even with such a configuration, the seat side shield can be assembled in a state of being supported from below with respect to the protruding pin. In the above embodiment, the mounting plate 38 has a disk shape, and the pin connecting portion 43 has a plate shape extending in the front-rear direction. However, either one of the mounting plate and the pin connecting portion may be arcuate so that the pin connecting portion can escape the rotation around the axis of the mounting plate. In the above embodiment, it is exemplified that the tip protruding to the right side of the upper locking claw 44 and the lower locking claw 45 has a claw shape that bends in a direction approaching each other. However, the upper locking claw and the lower locking claw may have a configuration in which the tips are not bent, or the upper locking claw may be configured so as to be supported by gravity from below on the mounting plate.

1 seat 10 seat cushion (base)
11 Side frame 12 Reclining plate (connecting frame)
13 Bracket 14 Spiral spring 20 Seat back 21 Side frame 22 Locking part 30 Reclining 31 Reclining hinge center 32 Release pin (protruding pin)
33 Shaft part 34 Extension part 35 Seat surface part 36 C ring 37 Caulking part 38 Mounting plate 40 Outer shield (seat side shield)
41 Cover 42 Overhang 43 Pin connection 44 Upper locking claw 45 Lower locking claw 46 Opening 50 Slide rail 51 Front and rear slide rail 52 Left and right slide rail F floor TH Tire house

Claims (5)

A vehicle seat with a seat side shield that covers the base that reclinesally supports the seat back from the outside in the seat width direction.
It has a protruding pin that projects outward from the reclining hinge center of the seat back in the seat width direction with respect to the seat back and the base.
The seat side shield is attached to the base to cover the connecting portion between the base and the seat back from the outside in the seat width direction, and the protruding pin allows the rotation of the protruding pin to escape around the axis. A vehicle seat having a pin connecting portion, which is pin-connected to. The vehicle seat according to claim 1.
A vehicle seat in which the pin connecting portion is pin-connected so as to allow rotation of the mounting plate to escape to a mounting plate that is integrally assembled to the protruding pin. The vehicle seat according to claim 1 or 2.
The vehicle seat further comprises a reclining that connects the seat back to the base in a reclining adjustable manner.
A vehicle seat in which the protruding pin is a release pin that unlocks the recliner by rotating around its axis. The vehicle seat according to any one of claims 1 to 3.
A vehicle seat in which a connecting portion between the base and the seat back comprises a connecting portion between the side frame of the seat back and the connecting frame of the base arranged so as to face the inside of the side frame in the seat width direction. The vehicle seat according to any one of claims 1 to 4.
A vehicle seat in which the pin connecting portion is formed so as to project from the inner side surface of the covering portion in the seat width direction.

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