JP6386612B1 - Vehicle seat - Google Patents

Abstract

A vehicle seat capable of suppressing a shift of a support member with a simple structure is provided.
A vehicle seat includes a pair of side frames 10 that are spaced apart from each other and a pair of connecting frames that are spaced apart from each other and connect the pair of side frames 10 (a front frame 21 and a rear frame). 22), a main body portion 51 disposed between the pair of connection frames, and hook portions 52 and 53 extending from the main body portion 51 and hooked to the pair of connection frames. The support member 50 that supports the occupant and the cover member 100 that covers the side frame 10 are provided. And the main-body part 51 has the control part 51C which controls the position of the left-right direction of the support member 50 by contact | abutting to the cover member 100. FIG.
[Selection] Figure 2

Description

  The present invention relates to a vehicle seat including a support member that supports an occupant.

  A seat cushion having a frame-like cushion frame and spanning an S spring as a support member for supporting an occupant on a front frame and a rear frame of the cushion frame is known (Patent Document 1). In this seat cushion, a connecting shaft constituting the rear frame is formed to form a groove so that the S spring does not shift from side to side, and a retainer on which the end of the S spring is hooked is engaged with this groove. Yes.

JP 2002-225600 A

  However, as in Patent Document 1, there is a problem that the cost is significantly increased when the rear frame is processed.

Then, an object of this invention is to provide the vehicle seat which can suppress the shift | offset | difference of a supporting member with a simple structure.
Another object of the present invention is to suppress the generation of sound.

In order to achieve the above-described object, a vehicle seat of the present invention includes a pair of side frames that are spaced apart from each other left and right, a pair of connecting frames that are spaced apart from each other and connect the pair of side frames, A support member for supporting an occupant, which has a main body portion disposed between a pair of connection frames, and a hook portion extending from the main body portions and hooked to the pair of connection frames. And a cover member that covers the side frame.
And a main-body part has a control part which controls the position of the left-right direction of a support member by contact | abutting to a cover member.

  According to such a configuration, the position of the support member in the left-right direction can be regulated by bringing the regulating portion provided in the main body of the support member into contact with the cover member, so the support member can be configured with a simple structure. Can be suppressed. For this reason, an increase in the cost of the vehicle seat can be suppressed.

In the vehicle seat described above, the cover member may have an inner wall portion disposed on the inner side in the left-right direction of the side frame.
In this case, the restricting portion may be configured to contact the inner wall portion from the outside in the left-right direction.
Further, the restricting portion may be configured to contact the inner wall portion from the inner side in the left-right direction.

  In the vehicle seat described above, the cover member may be configured to cover the periphery of the portion where the connecting frame of the side frame is connected.

  In this case, the cover member may have an extending portion that extends inward in the left-right direction along the connecting frame. And a latching part can be set as the structure which does not contact an extension part.

  In the above vehicle seat, the cover member is preferably made of resin.

  Thus, since the cover member is made of resin, it is possible to suppress the generation of sound when the restricting portion is in contact with the cover member.

  In the vehicle seat described above, the support member can be configured to include a metal wire and a resin member that covers at least a part of the metal wire. In this case, it is desirable that the restricting portion is made of a resin member.

  Thus, since the restricting portion is formed of the resin member, it is possible to suppress the generation of sound when the restricting portion is in contact with the cover member.

  ADVANTAGE OF THE INVENTION According to this invention, the shift | offset | difference of the supporting member which supports a passenger | crew with a simple structure can be suppressed.

  Moreover, according to the present invention, it is possible to suppress the generation of sound.

It is a figure which shows the vehicle seat as a vehicle seat which concerns on embodiment. It is a perspective view which shows the cushion frame and support member in 1st Embodiment. It is sectional drawing which cut the cushion frame in 1st Embodiment in the cross section which passes along a 1st inner wall part and a control part. It is sectional drawing which cut the cushion frame in 2nd Embodiment in the cross section which passes along a 1st inner wall part and a control part.

[First Embodiment]
Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings. In the present specification, front and rear, left and right, and top and bottom are based on the passenger sitting on the seat. Further, the inner side and the outer side in the left-right direction are based on the seat, not the vehicle.
As shown in FIG. 1, the vehicle seat of the present embodiment is configured as a vehicle seat S used in a driver's seat or a passenger seat of an automobile, and mainly includes a seat cushion S1 and a seat back S2. It has.

  A cushion frame F1 as shown in FIG. 2 that constitutes the frame of the seat cushion S1 is built in the seat cushion S1. The seat cushion S1 is configured by covering a cushion frame F1 with a pad made of urethane foam or the like and a skin material made of fabric or leather. Moreover, although illustration is abbreviate | omitted, seat back S2 is comprised by putting a pad and a skin material on the back frame which comprises the frame of seat back S2.

The cushion frame F1 includes a pair of side frames 10, a front frame 21 and a rear frame 22 as an example of a pair of connecting frames, a pan frame 23, and a cover member 100.
A pair of the side frames 10 are disposed so as to be separated from each other on the left and right.
The front frame 21 and the rear frame 22 are spaced apart from each other.
The front frame 21 is made of a metal pipe having a circular cross section, and connects the front portions of the pair of side frames 10.
The rear frame 22 is made of a metal pipe having a circular cross section, and connects the rear portions of the pair of side frames 10.
The pan frame 23 is a frame made of a metal plate, and connects the front portions of the pair of side frames 10 at a position in front of the front frame 21.

The cushion frame F1 is supported by the slide rail mechanism 30 via a height adjustment mechanism.
The slide rail mechanism 30 includes a pair of lower rails 31 that extend long in the front-rear direction and are spaced apart from each other, and a pair of upper rails 32 that are slidably engaged with each lower rail 31 in the front-rear direction. Consists of. Lower rail 31 is fixed to a vehicle floor (not shown).

The height adjustment mechanism includes a pair of front links 35 and a pair of rear links 36.
The front link 35 has an upper end portion rotatably connected to the front portion of the side frame 10 by a pin 35A, and a lower end portion rotatably connected to the front portion of the upper rail 32 by a pin 35B.
The rear link 36 is pivotally connected to the side frame 10 at the upper end. Further, the rear link 36 is rotatably connected to the rear portion of the upper rail 32 by a pin (not shown).

  The front link 35 and the rear link 36 form a four-bar link together with the upper rail 32 and the side frame 10. The height of the side frame 10 can be changed by rotating the front link 35 or the rear link 36 with respect to the side frame 10 by an electric or manual actuator (not shown).

  The rear frame 22 is connected to the side frame 10 via a cylindrical bracket 81. The bracket 81 is fitted to the rear frame 22 by a welded portion, with the left and right inner ends fitted on the outer side of the rear frame 22. Further, the bracket 81 is rotatably supported by the side frame 10 so that the left and right outer end portions are not detached from the side frame 10. Thus, the rear frame 22 is assembled to the side frame 10 so as not to be detached from the side frame 10, and is supported rotatably by the side frame 10.

  The aforementioned rear link 36 is inserted through the bracket 81 and welded to the bracket 81. As a result, the rear link 36 can rotate integrally with the bracket 81 and the rear frame 22.

  The cover member 100 is made of resin and covers the rear part of the side frame 10. The cover member 100 is provided on each of the left and right side frames 10, but in FIG. 2, only the right cover member 100 is shown, and the left cover member 100 is omitted.

  The cover member 100 includes an upper wall portion 110 that covers the upper surface of the side frame 10, an inclined portion 120 that extends inward in the left-right direction from the upper wall portion 110, a first inner wall portion 130 that extends downward from the inclined portion 120, and an inclined portion 120. And a second inner wall 140 extending downward from the upper wall 110 on the rear side.

The inclined portion 120 is provided on the front side of the rear frame 22. As shown in FIG. 3, the inclined portion 120 extends so as to be positioned downward as it goes inward in the left-right direction.
The first inner wall portion 130 is an example of an inner wall portion, and is disposed on the inner side in the left-right direction of the side frame 10 and the rear link 36.

  Returning to FIG. 2, the second inner wall portion 140 covers the periphery of the portion of the side frame 10 to which the rear frame 22 is connected. The second inner wall portion 140 has an extending portion 150 that extends inward in the left-right direction along the rear frame 22. Specifically, the extension 150 is a wall that protrudes inward in the left-right direction from the second inner wall 140, and has an arc shape along the rear end of the rear link 36.

A support member 50 that supports an occupant is disposed between the pair of side frames 10. The support member 50 is located below the pad of the seat cushion S1 (not shown), and supports the pad of the seat cushion S1 from below, that is, from the side opposite to the occupant.
The support member 50 includes a main body 51 that is a portion that supports an occupant disposed between a pair of connecting frames, and a front frame 21 that extends from the main body 51 and is hooked to the pair of connecting frames. And a latching portion 53 latched on the rear frame 22. Each of the latching portions 52 and 53 has a hook shape with a semicircular cross section following the outer shape of the front frame 21 and the rear frame 22.
The support member 50 is installed on the front frame 21 and the rear frame 22 by the hook 52 being hooked on the front frame 21 and the hook 53 being hooked on the rear frame 22.

  The support member 50 includes a plurality of metal wires 61 and a resin member 62 that covers at least a part of the metal wires 61. In the present embodiment, the resin member 62 covers the entire metal wire 61. For this reason, corrosion of the metal wire 61 can be suppressed by the resin member 62 without performing high rust prevention treatment on the metal wire 61.

  Three hooking portions 53 hooked to the rear frame 22 are provided on the left and right sides. The left and right latching portions 53 are disposed at positions away from each portion of the cover member 100 such as the extending portion 150.

  The main body 51 includes a wing 51A that extends upward toward the left and right in the left and right sides of the rear part, an extension 51B that extends outward in the left and right direction below the wing 51A, and a restriction 51C that extends upward from the extension 51B. And have.

The wing portion 51 </ b> A supports the side portion of the occupant's buttocks together with the inclined portion 120 of the cover member 100.
As shown in FIG. 3, the wing portion 51 </ b> A is provided at a position where the upper end portion is separated from the upper end of the first inner wall portion 130 in the left-right direction. Further, the wing portion 51A is separated from the inclined portion 120, and the inclined portion 120 does not restrict the movement of the wing portion 51A.
A reinforcing portion 51D that connects the wing portion 51A and the extension portion 51B is formed between the wing portion 51A and the extension portion 51B. In this way, the wing portion 51A is reinforced by providing the reinforcing portion 51D.

  The restricting portion 51 </ b> C is disposed on the outer side in the left-right direction of the first inner wall portion 130 of the cover member 100 and is adjacent to the first inner wall portion 130. When the support member 50 is about to move to the left, the right-side restricting portion 51C abuts the first inner wall portion 130 from the right side, that is, from the outside in the left-right direction. To regulate. The restricting portion 51 </ b> C is configured by a resin member 62. Although illustration is omitted, the left restricting portion 51C is also arranged on the outer side in the left-right direction of the first inner wall portion 130 of the left cover member 100, and the first inner wall portion 130 is moved when the support member 50 tries to move to the right. It contacts from the left side, that is, from the left and right direction outside.

  3 shows a state in which the restricting portion 51C is in contact with the first inner wall portion 130. However, in order to facilitate the assembly of the support member 50 to the cushion frame F1, the restricting portion is normally used. There should be some play between 51C and the first inner wall 130. However, the play between the left and right restricting portions 51C and the first inner wall portion 130 is small, for example, set to 10 mm or less so that the restricting portion 51C can restrict the position of the support member 50 in the left-right direction. Further, the play between the restricting portion 51C and the first inner wall portion 130 is smaller than the distance between the extending portion 150 of the cover member 100 and the latching portion 53 of the support member 50, and even if the support member 50 moves left and right, The latch part 53 does not contact the extension part 150.

  According to the vehicle seat S configured as described above, the support member 50 is displaced in the left-right direction because the occupant repeatedly sits on the seat cushion S1 and the lateral force is repeatedly applied while sitting. In this case, the right or left restricting portion 51 </ b> C abuts on the first inner wall portion 130 of the cover member 100, so that the support member 50 is restricted from moving further. Since the cover member 100 is a member normally provided on the vehicle seat, according to the present embodiment, the shift of the support member 50 can be suppressed with a simple structure while suppressing an increase in manufacturing cost.

  If the load from the occupant is applied to the support member 50 when the restricting portion 51C is in contact with the first inner wall portion 130, the first inner wall portion 130 and the restricting portion 51C may be rubbed and noise may be generated. However, since the restricting portion 51C is configured by the resin member 62 and the first inner wall portion 130 is made of resin, the generation of this sound can be suppressed.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. Since the vehicle seat according to the second embodiment is different in part only in the configuration of the support member 50 from the first embodiment, only this different part will be described.

  As shown in FIG. 4, in the second embodiment, the restricting portion 51 </ b> C of the support member 50 contacts the first inner wall 130 of the cover member 100 from the inside in the left-right direction, not from the outside in the left-right direction. It is configured as follows. Specifically, the restricting portion 51 </ b> C is disposed on the inner side in the left-right direction of the first inner wall portion 130 and is adjacent to the first inner wall portion 130. When the support member 50 is about to move to the right, the right restricting portion 51C restricts the position of the support member 50 in the left-right direction by coming into contact with the first inner wall portion 130 from the left side. When the support member 50 is about to move to the left, the left restricting portion 51C restricts the position of the support member 50 in the left-right direction by coming into contact with the first inner wall portion 130 from the right side.

  The position of the support member 50 can also be regulated by the vehicle seat S configured as described above, similarly to the first embodiment.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. About a concrete structure, it can change suitably in the range which does not deviate from the meaning of invention as follows.

  In the second embodiment, the restricting portion 51C provided separately from the wing portion 51A is configured to come into contact with the first inner wall portion 130 from the inner side in the left-right direction, but the wing portion 51A is left and right with respect to the first inner wall portion 130. You may comprise so that it may contact | abut from the direction inner side. That is, the wing part 51 </ b> A may be a restricting part that restricts the position of the support member 50 in the left-right direction by contacting the cover member 100.

  In the first embodiment, the case where the restriction portions 51C are provided on the left and right sides of the main body 51 and the restriction portions 51C contact the first inner wall portion 130 of the cover member 100 from the outside in the left-right direction has been described. A pair of restricting portions provided so as to sandwich the first inner wall portion 130 is provided on one of the left and right sides, and the pair of restricting portions are in contact with the first inner wall portion 130 from the inner side and the outer side in the left-right direction. Also good. Further, the restricting portion of the present invention may be provided only on one of the left and right sides, and the restricting portion may be in contact with the cover member 100, and the other of the left and right may adopt another position restricting structure different from the present invention. .

  In the embodiment, the configuration in which the support member 50 is disposed on the cushion frame F1 has been described. However, the support member may be disposed on the seat back frame. Even in this case, it is possible to regulate the position of the support member by placing the support member in the vertical direction with respect to the seat back frame and bringing the main body of the support member into contact with the cover member that covers the side frame. is there.

  Moreover, in the said embodiment, although vehicle seat S mounted in a motor vehicle was illustrated as a vehicle seat, a vehicle seat is not limited to this, For example, vehicles other than a motor vehicle, for example, a rail vehicle, a ship, an aircraft, etc. It may be a seat to be mounted on.

  In addition, the elements described in the above-described embodiments and modifications can be implemented in any combination.

DESCRIPTION OF SYMBOLS 10 Side frame 21 Front frame 22 Rear frame 50 Support member 51 Main body part 51C Control part 52 Hanging part 53 Hanging part 61 Metal wire 62 Resin member 100 Cover member 130 1st inner wall part 150 Extension part S Vehicle seat

Claims (7)

A pair of side frames spaced apart from each other on the left and right;
A pair of connecting frames that are spaced apart from each other and connect the pair of side frames;
A main body that is disposed between the pair of connecting frames and does not contact the pair of connecting frames ; and a hook that extends from the main body and is hooked by contacting the pair of connecting frames. A support member installed on the pair of connecting frames to support an occupant;
A cover member covering the side frame,
The vehicle seat according to claim 1, wherein the main body portion includes a restricting portion that restricts a position of the support member in a left-right direction by contacting the cover member. A pair of side frames spaced apart from each other on the left and right;
A pair of connecting frames that are spaced apart from each other and connect the pair of side frames;
A body portion disposed between the pair of connection frames, and a hook portion extending from the body portion and hooked to the pair of connection frames; A supporting member to support;
A cover member covering the side frame,
The main body has a restricting portion that restricts the position of the support member in the left-right direction by contacting the cover member,
The cover member has an inner wall portion disposed on the inner side in the left-right direction of the side frame,
The vehicle seat according to claim 1, wherein the restricting portion is in contact with the inner wall portion from the outside in the left-right direction. The cover member has an inner wall portion disposed on the inner side in the left-right direction of the side frame,
The vehicle seat according to claim 1, wherein the restricting portion contacts the inner wall portion from the inner side in the left-right direction.   The vehicle seat according to any one of claims 1 to 3, wherein the cover member covers a periphery of a portion of the side frame to which the connection frame is connected. A pair of side frames spaced apart from each other on the left and right;
A pair of connecting frames that are spaced apart from each other and connect the pair of side frames;
A body portion disposed between the pair of connection frames, and a hook portion extending from the body portion and hooked to the pair of connection frames; A supporting member to support;
A cover member covering the side frame,
The main body has a restricting portion that restricts the position of the support member in the left-right direction by contacting the cover member,
The cover member covers a periphery of a portion of the side frame to which the connection frame is connected,
The cover member has an extending portion that extends inward in the left-right direction along the connection frame;
The vehicle seat according to claim 1, wherein the hook portion does not contact the extension portion .   The vehicle seat according to any one of claims 1 to 5, wherein the cover member is made of a resin. The support member includes a metal wire and a resin member that covers at least a part of the metal wire,
The vehicle seat according to any one of claims 1 to 6, wherein the restricting portion is configured by the resin member.

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