JP6346334B1 - 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) and a support member 50 that has hook portions 52 and 53 hooked to the pair of connecting frames and is laid on the pair of connecting frames to support the occupant, and the hook portion 53 and the side frame Between the positions 10, a collar 70 containing the rear frame 22 is provided. The collar 70 abuts on the latching portion 53 to regulate the position of the support member 50 in the left-right direction. [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 is provided on a pair of connection frames and has a hook portion hooked by a pair of connection frames, and is provided at a position between the hook portion and the side frame. A cylindrical member containing is provided.
And the cylindrical member is characterized by restricting the position of the support member in the left-right direction by coming into contact with the latching portion.

  According to such a configuration, since the position of the support member in the left-right direction can be regulated by bringing the latching portion of the support member into contact with the cylindrical member, the support member can be displaced 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, it is desirable that the tubular member is not fixed to the connecting frame.

  As described above, the configuration in which the cylindrical member is not fixed to the connecting frame makes it easy to attach the cylindrical member to the connecting frame.

  In the vehicle seat described above, the cylindrical member may be rotatably supported by the connecting frame.

  As described above, by adopting a configuration in which the cylindrical member is rotatable with respect to the connecting frame, it is possible to make it difficult to wear the contact portion between the cylindrical member and the latching portion.

  In the vehicle seat described above, the cylindrical member may be fixed to the connecting frame.

  Thus, since the position of a cylindrical member does not shift by setting it as the structure where the cylindrical member was fixed to the connection frame, position control of a support member can be performed reliably.

  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, as for the latching | locking part, it is desirable for the part contact | abutted to a cylindrical member to be comprised with the resin member.

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

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

  As described above, since the cylindrical member is made of resin, it is possible to suppress generation of sound when the latching portion is in contact with the cylindrical 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 along the axial center of the rear frame of the cushion frame in 1st Embodiment. It is sectional drawing along the axial center of the rear frame of the cushion frame in 2nd Embodiment.

[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, and a pan frame 23.
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).

As shown in FIG. 3, the rear frame 22 is connected to the side frame 10 via a cylindrical bracket 81. In addition, since the structure of each part is substantially left-right symmetric, in FIG. 3, only the cross section of the right side of the cushion frame F1 is shown and demonstrated.
The bracket 81 has a first cylindrical portion 81A and a second cylindrical portion 81B disposed on the outer side in the left-right direction with respect to the first cylindrical portion 81A. The first cylindrical portion 81A and the second cylindrical portion 81B are connected by a flange 81C protruding outward in the radial direction. The left and right inner ends of the first cylindrical portion 81 </ b> A are fitted to the outside of the rear frame 22 and are welded to the rear frame 22 by a welding portion 91.

  The side frame 10 has a circular support hole 11. The second cylindrical portion 81B of the bracket 81 is inserted into the support hole 11, and a washer 85 is fitted on the outer side of the side frame 10, and the left and right outer ends are crimped. 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 above-described rear link 36 has a hole 36C, and is welded to the bracket 81 by a welding portion 92 in a state where the first cylindrical portion 81A of the bracket 81 is inserted into the hole 36C. As a result, the rear link 36 can rotate integrally with the bracket 81 and the rear frame 22.

Returning to FIG. 2, 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 is latched to the main frame 51 that is a portion that supports the occupant, and the latch 52 that is latched to the front frame 21 and the rear frame 22 as a latch that is latched to the pair of connecting frames. It has the latching | locking part 53 used. 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. As for the latching | locking part 53, the edge part of the left-right direction outer side is comprised by the resin member 62. As shown in FIG.
A collar 70 as an example of a tubular member is provided at a position between the left and right latching portions 53 and the side frame 10.

  As shown in FIG. 3, the collar 70 is made of resin and is formed in a cylindrical shape having an insertion hole 71. The collar 70 includes the rear frame 22 and the first cylindrical portion 81 </ b> A of the bracket 81 in the insertion hole 71, and is provided at a position between the rear link 36 and the latching portion 53. The collar 70 is not fixed to the rear frame 22 and the bracket 81, and is rotatably supported by the rear frame 22 and the bracket 81. The collar 70 has an end on the outer side in the left-right direction adjacent to the rear link 36, and the outer side in the left-right direction is restricted by contacting the rear link 36.

  The left end of the right collar 70 is adjacent to the latching portion 53 arranged on the rightmost side. Accordingly, when the support member 50 is about to move to the right, the collar 70 abuts on the latching portion 53 to regulate the position of the support member 50 in the left-right direction. Although illustration is omitted, the left collar 70 is adjacent to the leftmost latching portion 53 and the latching portion 53 when the support member 50 is about to move to the left. The position of the support member 50 in the left-right direction is regulated by abutting on.

  3 shows a state in which the collar 70 is in contact with the latching portion 53 and the rear link 36. In order to facilitate the assembly of the support member 50 to the cushion frame F1, it is normal. There should be some play between the latch 53 and the collar 70. However, the play between the collar 70 and the left and right latching portions 53 is small when the collar 70 is in contact with the left and right rear links 36 so that the position of the support member 50 in the left and right direction can be regulated by the collar 70. For example, it is set to 10 mm or less.

  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 support member 50 is restricted from moving further by the right or left latching portion 53 coming into contact with the collar 70. Since the collar 70 is formed as a separate component from the rear frame 22, the collar 70 can be simplified while suppressing an increase in manufacturing cost as compared with the case where the rear frame 22 itself is processed and a portion that contacts the hooking portion 53 is provided. The displacement of the support member 50 can be suppressed by the structure.

  And, when the load from the occupant is applied to the support member 50 when the latching portion 53 is in contact with the collar 70, the latching portion 53 and the collar 70 may be rubbed and a noise may be generated. Since the portion of the hook 53 that contacts the collar 70 and the collar 70 are formed of the resin member 62, the generation of this sound can be suppressed.

  Further, when the height adjustment mechanism is operated, the rear link 36 rotates. At this time, the rear frame 22 and the bracket 81 also rotate together with the rear link 36. However, since the collar 70 can rotate with respect to the rear frame 22 and the bracket 81, the relative rotation amount of the latching portion 53 and the collar 70 is as follows. Few. Therefore, compared with the case where the collar 70 rotates integrally with the rear frame 22 and the bracket 81, it is possible to suppress wear of the contact portion between the latching portion 53 and the collar 70.

  Further, since the collar 70 is not fixed to the rear frame 22 or the bracket 81, the collar 70 can be easily assembled as compared with the case where the collar 70 is fixed to the rear frame 22 or the bracket 81.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. The vehicle seat according to the second embodiment does not include the collar 70 as in the first embodiment.

  As shown in FIG. 4, in the second embodiment, the latching portion 153 on the rear side of the support member 50 is configured to contact the bracket 81 instead of the collar. Specifically, the latching portion 153 arranged on the rightmost side includes a plate-like portion 153A extending along the rear frame 22, and a regulating portion 153B extending from the right end of the plate-like portion 153A to the rear frame 22 side. Yes. The restricting portion 153 </ b> B contacts the rear frame 22 and is adjacent to the first cylindrical portion 81 </ b> A of the bracket 81. The first cylindrical portion 81 </ b> A is an example of a cylindrical member, is provided at a position between the latching portion 153 and the side frame 10, and is fixed to the rear frame 22. When the support member 50 is about to move to the right, the first cylindrical portion 81A restricts the position of the support member 50 in the left-right direction by the welded portion 91 coming into contact with the restricting portion 153B. The restricting portion 153 </ b> B is configured by the resin member 62. The latching portion 153 arranged on the leftmost side also has a bilaterally symmetric configuration, and has a regulating portion 153B formed of a resin member 62 at the left end portion.

  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. Since the bracket 81 is a member provided to connect the rear frame 22 to the side frame 10, according to the present embodiment, the shift of the support member 50 can be prevented with a simple structure while suppressing an increase in manufacturing cost. Can be suppressed.

  And also in 2nd Embodiment, since the control part 153B is comprised with the resin member 62, generation | occurrence | production of a sound can be suppressed.

  Further, the first cylindrical portion 81A of the bracket 81 is fixed to the rear frame 22 and the rear link 36. When the rear link 36 rotates, the first cylindrical portion 81A rotates integrally with the rear frame 22 and the rear link 36. Even if the rear link 36 rotates, the positional relationship between the restricting portion 153B and the first cylindrical portion 81A is not easily changed, and the position restriction can be reliably performed by the first cylindrical portion 81A.

  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 embodiment, the vehicle seat is provided with the height adjusting mechanism, but the height adjusting mechanism may not be provided. For example, in the first embodiment, even when the rear link 36 is not provided, the collar 70 is in contact with the side frame 10 so that the movement of the collar 70 outward in the left-right direction is restricted. The position of the support member 50 can be regulated.

  In the first embodiment, the case where the right latching portion 53 and the left latching portion 53 are in contact with the collar 70 has been described. However, one of the left and right latching portions 53 is in contact with the collar 70 and the other latching portion is in contact. The portion 53 may be configured to abut on the first cylindrical portion 81A of the bracket 81. In addition, the cylindrical member of the present invention is provided only on one of the left and right sides, and the cylindrical member is configured to abut on the latching portion, and the other of the left and right adopts another position regulation structure different from the present invention. Also good.

  In the above-described embodiment, the case where the cylindrical member is provided at the position between the rear hooking portions 53 and 153 and the side frame 10 has been described, but the position between the front hooking portion 52 and the side frame 10 is described. A cylindrical member may be provided on the front side, and the cylindrical member may be brought into contact with the front hooking portion 52.

  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. In this case as well, the support member is installed in the vertical direction with respect to the seat back frame, and a cylindrical member such as a collar provided between the hook portion and the side frame is brought into contact with the hook portion. Can be regulated.

  In the embodiment, the collar 70 and the first cylindrical portion 81A of the bracket 81, which are examples of the cylindrical member, are cylindrical, but the cylindrical member may be formed in a cylindrical shape other than a cylinder. .

  Moreover, the shape of the cylindrical member does not need to be a completely closed cylindrical shape, and may be a cylindrical shape with a part cut, for example, a C-shaped cross section.

  In the said embodiment, although the part contact | abutted to the cylindrical member of the latching | locking part 53 was comprised by the resin member 62, the part contact | abutted to the cylindrical member of a latching | locking part may be comprised by the metal. .

  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 53 Latch part 61 Metal wire material 62 Resin member 70 Color 81 Bracket 153 Latch part 153B Restriction 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 support member for supporting an occupant, which has a hook portion hooked on the pair of connection frames, and is laid on the pair of connection frames;
A position between the side frame and the hook portion, the connecting frame is Ri ON, the not fixed to the connecting frame cylindrical member is provided,
By the end of the right and left directions inside of the cylindrical member abut on the end portions of the right and left outer side of the hook portion, the end portions of the right and left outwardly of the tubular member is brought into contact with the side frame, wherein A vehicle seat characterized by restricting the position of the support member in the left-right direction. 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 link of a height adjustment mechanism that is rotatably connected to the side frame;
A support member for supporting an occupant, which has a hook portion hooked on the pair of connection frames, and is laid on the pair of connection frames;
A position between the side frame and the hook portion, the connecting frame is Ri ON, the not fixed to the connecting frame cylindrical member is provided,
By the end of the right and left directions inside of the cylindrical member abut on the end portions of the right and left outer side of the hook portion, the end portions of the right and left outwardly of the tubular member abuts the link, said support A vehicle seat characterized by regulating a position of a member in a left-right direction. 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 support member for supporting an occupant, which has a hook portion hooked on the pair of connection frames, and is laid on the pair of connection frames;
The connection frame is connected to the side frame via a cylindrical bracket as a cylindrical member, and the bracket is fitted to the outside of the connection frame;
The vehicle seat according to claim 1, wherein a position of the support member in the left-right direction is regulated by abutting a left-right inner end portion of the cylindrical member on a left- right outer end portion of the hooking portion. It said tubular member is a vehicle seat as claimed in any one of claims 3, wherein the rotatable Dearuko relative to the connecting frame. The vehicle seat according to claim 3 , wherein the cylindrical member is fixed to the connection frame. 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 5 , wherein a portion of the hooking portion that is in contact with the tubular member is formed of the resin member. The vehicle seat according to any one of claims 1 to 6 , wherein the cylindrical member is made of resin.

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