Vehicle seats

Abstract

To provide a vehicle seat that can adjust position of an armrest in a seat width direction when assembling while ensuring rigidity of a connection part between an armrest frame and a cushion frame.SOLUTION: A vehicle seat according to one aspect of the present invention comprises a cushion frame, and an armrest frame. The armrest frame comprises: a beam frame extending in a seat longitudinal direction; a first bracket located on a seat width direction outer side of the beam frame; a second bracket which is so located as to pinch the beam frame in a seat width direction together with the first bracket; and a first fastener which connects the first bracket, the beam frame, and the second bracket in the seat width direction. The first bracket and the second bracket are each fixed to the cushion frame.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to vehicle seats. [Background technology]

[0002] A vehicle seat having an armrest provided on the side of the seat cushion is known. The armrest is supported by an armrest frame connected to the cushion frame from the side (see Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] China Utility Model Publication No. 212098555 [Patent Document 2] China Utility Model Publication No. 214138319 Summary of the Invention [Problem to be solved by the invention]

[0004] In the armrest frame of Patent Document 1, it is necessary to increase the thickness or width of the plate to increase the rigidity of the connecting portion to the cushion frame, which increases the weight. .Ma In addition, the armrest frame of Patent Document 2 ,nine The connection part to the cushion frame has an open cross section, so it is not rigid enough.

[0005] One aspect of the present disclosure is to ensure the rigidity of the connection portion between the armrest frame and the cushion frame. preserve The purpose is to [Means for solving the problem]

[0006] One aspect of the present disclosure is a vehicle seat (1) comprising a seat cushion (2), an armrest (4), a cushion frame (6) that supports the seat cushion (2), and an armrest frame (7) that supports the armrest (4).

[0007] The armrest frame (7) includes a beam frame (71) extending in the front-rear direction of the seat, a first bracket (72) arranged on the outer side of the beam frame (71) in the seat width direction, a second bracket (73) arranged to sandwich the beam frame (71) together with the first bracket (72) in the seat width direction, and a first fastener (75) connecting the first bracket (72), the beam frame (71), and the second bracket (73) in the seat width direction. The first bracket (72) and the second bracket (73) are each fixed to the cushion frame (6).

[0008] According to this configuration, the armrest frame (7) is fixed to the cushion frame (6) by the first bracket (72) and the second bracket (73) that sandwich the beam frame (71) in the seat width direction, thereby increasing the rigidity of the connecting portion between the armrest frame (7) and the cushion frame (6).

[0010] In one aspect of the present disclosure, the armrest frame (7) may have a tubular collar (74) that penetrates the beam frame (71) in the seat width direction. The first fastener (75) may be inserted into the collar (74). With this configuration, the collar (74) distributes the load at the connection portion between the beam frame (71) and the first bracket (72) and the second bracket (73). As a result, the rigidity of the armrest frame (7) is increased.

[0011] In one aspect of the present disclosure, the cushion frame (6) may have a first side frame (61) and a second side frame (62) arranged apart from each other in the seat width direction, and a connecting member (63) connecting the first side frame (61) and the second side frame (62) in the seat width direction. The armrest frame (7) may have a second fastener (76) connecting the first bracket (72) and the connecting member (63) in the axial direction of the connecting member (63). With this configuration, the rigidity in the seat width direction at the connecting portion between the armrest frame (7) and the cushion frame (6) is increased.

[0012] In one aspect of the present disclosure, the first bracket (72) may have a first upper wall (722) extending inward in the seat width direction above a portion fastened by the first fastener (75). The second bracket (73) may have a second upper wall (732) extending outward in the seat width direction above a portion fastened by the first fastener (75) and overlapping the first upper wall (722) in the up-down direction. The armrest frame (7) may have a third fastener (78A) connecting the first upper wall (722) and the second upper wall (732) in the up-down direction. This configuration increases the rigidity in the seat width direction at the connecting portion between the first bracket (72) and the second bracket (73).

[0013] In one aspect of the present disclosure, the armrest frame (7) may have an attachment member (77) fixed to the first bracket (72) and the second bracket (73). The third fastener (78A) may connect the attachment member (77), the first upper wall (722), and the second upper wall (732) in the up-down direction. With this configuration, the attachment member (77) is fastened together with the first bracket (72) and the second bracket (73), thereby promoting the effect of improving the rigidity in the seat width direction at the connection portion between the first bracket (72) and the second bracket (73).

[0014] Note that the symbols in the parentheses above are examples showing the correspondence with the specific configurations, etc. described in the embodiments described below, and the present disclosure is not limited to the specific configurations, etc. shown by the symbols in the parentheses above. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a schematic perspective view showing a vehicle seat according to an embodiment. [Figure 2] FIG. 2 is a schematic perspective view of the cushion frame and the armrest frame of FIG. [Figure 3] FIG. 3 is a schematic perspective view of the armrest frame of FIG. [Figure 4] FIG. 4 is a schematic exploded perspective view of the armrest frame of FIG. [Figure 5] 5 is a schematic rear view showing a connection state of the attachment members in the armrest frame of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, embodiments to which the present disclosure is applied will be described with reference to the drawings. [1. First embodiment] [1-1.Configuration] The vehicle seat 1 shown in FIG. 1 includes a seat cushion 2, a seat back 3, a first armrest 4, a second armrest 5, a cushion frame 6, a first armrest frame 7, and a second armrest frame 8.

[0017] The vehicle seat 1 is used as a seat for a passenger vehicle. Note that the directions in the following description and in each drawing refer to directions when the vehicle seat 1 is assembled to the vehicle (i.e., the passenger vehicle). In this embodiment, the width direction of the seat coincides with the left-right direction of the vehicle, and the front of the seat coincides with the front of the vehicle.

[0018] The seat cushion 2 is a portion for supporting the buttocks of the seated person. The seat back 3 is a portion for supporting the back of the seated person. The first armrest 4 is a portion for supporting the left arm of the seated person. The second armrest 5 is a portion for supporting the right arm of the seated person.

[0019] The cushion frame 6 supports the seat cushion 2. The first armrest frame 7 supports the first armrest 4. The second armrest frame 8 supports the second armrest 5.

[0020] <Cushion frame> As shown in FIG. 2, the cushion frame 6 includes a first side frame 61, a second side frame 62, a first connecting member 63, a second connecting member 64, and a frame connecting bracket 65.

[0021] The first side frame 61 and the second side frame 62 extend in the front-rear direction of the seat and are spaced apart from each other in the width direction of the seat. The first side frame 61 is disposed on the left side of the second side frame 62.

[0022] The first side frame 61 and the second side frame 62 are each configured to be fixed to the floor of a vehicle on which the vehicle seat 1 is installed. A first armrest frame 7 is fixed to the first side frame 61. A second armrest frame 8 is fixed to the second side frame 62.

[0023] The first connecting member 63 is a cylindrical member extending in the seat width direction. The first connecting member 63 connects the rear end of the first side frame 61 and the rear end of the second side frame 62 in the seat width direction. The axial direction (i.e., the longitudinal direction) of the first connecting member 63 is parallel to the seat width direction.

[0024] The second connecting member 64 is a cylindrical member extending in the seat width direction. The second connecting member 64 connects the first side frame 61 and the second side frame 62 in the seat width direction, further forward of the first connecting member 63 in the seat.

[0025] The frame connecting bracket 65 is a plate member that is fixed, for example by welding, to the outer peripheral surface of the second connecting member 64 on the outer side in the seat width direction (i.e., on the left side) of the first side frame 61. The frame connecting bracket 65 extends upward from the second connecting member 64.

[0026] <First armrest frame> The first armrest frame 7 has a beam frame 71, a first bracket 72, a second bracket 73, a collar 74 (see Figure 3), a first fastener 75, a second fastener 76, an attachment member 77, a third fastener 78A, a fourth fastener 78B, a fifth fastener 78C, and a pillar frame 79.

[0027] (Beam frame) The beam frame 71 is a rectangular cylindrical member extending in the front-rear direction of the seat. That is, the beam frame 71 has a closed cross section. The beam frame 71 is preferably made of aluminum from the viewpoint of weight reduction.

[0028] The front end of the beam frame 71 is fixed to the column frame 79 by, for example, welding. The rear end of the beam frame 71 is fixed to the first connecting member 63 via a first bracket 72 and a second bracket 73.

[0029] (First bracket) 3, the first bracket 72 is a plate-shaped member arranged on the outer side (i.e., left side) of the beam frame 71 in the seat width direction. From the viewpoints of strength and weldability, iron is preferred as the material for the first bracket 72. The first bracket 72 has a first side wall 721 and a first upper wall 722.

[0030] The first side wall 721 extends in the vertical direction and covers the rear end of the beam frame 71 from the outer side in the seat width direction. A lower end of the first side wall 721 is fixed to the first connecting member 63 by a second fastener 76.

[0031] The first upper wall 722 extends inward in the seat width direction above the fastening portion of the first fastener 75. Specifically, the first upper wall 722 extends from the upper end of the first side wall 721 to the right.

[0032] The first upper wall 722 overlaps the second upper wall 732 of the second bracket 73 in the vertical direction and covers the rear end of the beam frame 71 from above. A mounting member 77 is attached to the first upper wall 722 by a third fastener 78A, a fourth fastener 78B, and a fifth fastener 78C. As shown in Fig. 4, the first upper wall 722 is provided with three fastening holes 722A, 722B, and 722C through which the third fastener 78A, the fourth fastener 78B, and the fifth fastener 78C are inserted, respectively.

[0033] (Second bracket) The second bracket 73 is a plate-shaped member arranged on the inner side of the beam frame 71 in the seat width direction.

[0034] The second bracket 73 is disposed so as to sandwich the beam frame 71 together with the first bracket 72 in the seat width direction. From the viewpoints of strength and weldability, iron is preferred as the material for the second bracket 73. The second bracket 73 has a second side wall 731, a second upper wall 732, and a support portion 733.

[0035] The second side wall 731 extends in the vertical direction and covers the rear end of the beam frame 71 from the inside in the seat width direction. The lower end of the second side wall 731 contacts the first connecting member 63 from above and is fixed to the first connecting member 63 by, for example, welding.

[0036] The second upper wall 732 extends outward in the seat width direction above the fastening portion of the first fastener 75. Specifically, the second upper wall 732 extends from the upper end of the second side wall 731 to the left.

[0037] The second upper wall 732 overlaps the first upper wall 722 of the first bracket 72 in the vertical direction and covers the rear end of the beam frame 71 from above. A mounting member 77 is attached to the second upper wall 732 by a third fastener 78A, a fourth fastener 78B, and a fifth fastener 78C. The second upper wall 732 is provided with three fastening holes 732A, 732B, and 732C through which the third fastener 78A, the fourth fastener 78B, and the fifth fastener 78C are inserted, respectively.

[0038] 3, in this embodiment, the second upper wall 732 is disposed so as to overlap the lower part of the first upper wall 722. However, the second upper wall 732 may also be disposed above the first upper wall 722.

[0039] The support portion 733 extends outward in the seat width direction (i.e., toward the first bracket 72) from the rear end of the second side wall 731. The support portion 733 contacts the first connecting member 63 from the rear of the seat and is fixed to the first connecting member 63 by, for example, welding.

[0040] (color) The collar 74 is a cylindrical member that penetrates the beam frame 71 in the seat width direction. From the viewpoint of weldability to the beam frame 71, the material of the collar 74 is preferably the same as that of the beam frame 71 (for example, aluminum).

[0041] As shown in Fig. 4, the axial direction of the collar 74 is parallel to the seat width direction. The collar 74 is inserted through a first opening 711 and a second opening 712 provided at the rear end of the beam frame 71. The length of the collar 74 is greater than the width of the rear end of the beam frame 71. The collar 74 is fixed to the beam frame 71 by, for example, welding.

[0042] (First fastener) The first fastener 75 is a bolt that connects the first bracket 72, the beam frame 71, and the second bracket 73 in the seat width direction. The axial direction of the first fastener 75 is parallel to the seat width direction.

[0043] The first fastener 75 is inserted through the first bracket 72, the collar 74, and the second bracket 73 with its head oriented so as to be positioned further outward in the seat width direction than the first bracket 72. The first fastener 75 is fastened to a first nut 75A that is positioned on the inner side of the second bracket 73 in the seat width direction.

[0044] The collar 74 is held between the first bracket 72 and the second bracket 73 by a first fastener 75. The first bracket 72 and the second bracket 73 are fixed to the beam frame 71 via the collar 74 fixed to the beam frame 71.

[0045] (Second fastener) The second fastener 76 is a bolt that connects the first bracket 72 and the first connecting member 63 in the axial direction of the first connecting member 63. The second fastener 76 is disposed lower than the first fastener 75.

[0046] The second fastener 76 is inserted through the first side wall 721 of the first bracket 72 and the first connecting member 63 with its head oriented so as to be positioned further outward in the seat width direction than the first bracket 72. The second fastener 76 is fastened to a second nut 63A disposed on an end of the first connecting member 63. The second nut 63A is fixed to the first connecting member 63 by, for example, welding.

[0047] (Mounting parts) As shown in FIG. 5, the mounting member 77 is fixed to the first bracket 72 and the second bracket 73 by a third fastener 78A, a fourth fastener 78B, and a fifth fastener 78C.

[0048] The mounting member 77 is a bracket for mounting a functional component (not shown) of the first armrest 4, or a bracket that constitutes part of the functional component. An example of the functional component is a table that can be stored in and deployed from the first armrest 4.

[0049] The mounting member 77 has a first fastening hole 771, a second fastening hole 772, and a third fastening hole 773. A third fastener 78A is inserted through the first fastening hole 771. A fourth fastener 78B and a fifth fastener 78C are inserted through the second fastening hole 772 and the third fastening hole 773, respectively. The first fastening hole 771 is an elongated hole whose vertical width is greater than its horizontal width.

[0050] (Third fastener, fourth fastener, and fifth fastener) The third fastener 78A, the fourth fastener 78B, and the fifth fastener 78C are respectively bolts that vertically connect the mounting member 77, the first upper wall 722, and the second upper wall 732. The mounting member 77 is fastened to the first upper wall 722 and the second upper wall 732 together.

[0051] The axial direction of the third fastener 78A, the fourth fastener 78B, and the fifth fastener 78C is parallel to the vertical direction. The third fastener 78A, the fourth fastener 78B, and the fifth fastener 78C are fastened to nuts (not shown) disposed below the first upper wall 722 and the second upper wall 732, respectively.

[0052] The first armrest frame 7 does not necessarily have to have the fourth fastener 78B and the fifth fastener 78C. However, from the viewpoint of ensuring surface rigidity and suppressing horizontal movement and rotation of the mounting member 77, the first upper wall 722, and the second upper wall 732, it is preferable to provide the fourth fastener 78B and the fifth fastener 78C.

[0053] (Column frame) The column frame 79 shown in Fig. 2 is a rectangular cylindrical member. That is, the column frame 79 has a closed cross section. Aluminum is a preferable material for the column frame 79 from the viewpoint of weight reduction.

[0054] The lower end of the pillar frame 79 is fixed to the second connecting member 64 of the cushion frame 6 by a sixth fastener 79A. In addition, the pillar frame 79 is fixed to the frame connecting bracket 65 by a seventh fastener 79B below the fixed portion with the beam frame 71.

[0055] [1-2.Effects] According to the embodiment described above in detail, the following effects can be obtained. (1a) The first armrest frame 7 is fixed to the cushion frame 6 by the first bracket 72 and the second bracket 73 that sandwich the beam frame 71 in the seat width direction. Therefore, the rigidity of the connecting portion between the first armrest frame 7 and the cushion frame 6 is increased.

[0056] Furthermore, the beam frame 71 is fastened to the first bracket 72 and the second bracket 73 that sandwich the beam frame 71 in the seat width direction, thereby improving the positional accuracy of the beam frame 71 in the seat width direction. do.

[0057] (1b) The load at the connection portion between the beam frame 71 and the first bracket 72 and second bracket 73 is dispersed by the collar 74. As a result, the rigidity of the first armrest frame 7 is increased.

[0058] (1c) By connecting the first bracket 72 to the first connecting member 63 in the axial direction of the first connecting member 63, the rigidity in the seat width direction at the connecting portion between the first armrest frame 7 and the cushion frame 6 is increased.

[0059] (1d) By connecting the first upper wall 722 and the second upper wall 732 in the up-down direction, the rigidity in the seat width direction at the connecting portion between the first bracket 72 and the second bracket 73 is increased.

[0060] (1e) By fastening the mounting member 77 together with the first bracket 72 and the second bracket 73, the effect of improving the rigidity in the seat width direction at the connecting portion between the first bracket 72 and the second bracket 73 is promoted.

[0061] 2. Other Embodiments Although the embodiments of the present disclosure have been described above, it goes without saying that the present disclosure is not limited to the above-described embodiments and can take on various forms.

[0062] (2a) In the vehicle seat of the above embodiment, the first armrest frame does not necessarily have to have a collar. For example, the beam frame may be directly fixed to the first bracket and the second bracket by the first fastener.

[0063] (2b) In the vehicle seat of the above embodiment, the first bracket does not necessarily have to be fixed to the first connecting member by the second fastener. For example, the first bracket may be fixed to the first connecting member only by welding. Furthermore, the first bracket may be fixed to a portion of the cushion frame other than the first connecting member.

[0064] (2c) In the vehicle seat of the above embodiment, the mounting member does not necessarily have to be fastened together with the first bracket and the second bracket. Also, the first bracket and the second bracket do not necessarily have to have the first upper wall and the second upper wall, respectively.

[0065] (2d) The vehicle seat of the above embodiment can also be applied to seats used in automobiles other than passenger cars, and seats used in vehicles other than automobiles, such as railway cars, ships, and aircraft.

[0066] (2e) The function of one component in the above embodiments may be distributed among multiple components, or the functions of multiple components may be integrated into one component. Also, part of the configuration of the above embodiments may be omitted. Furthermore, at least part of the configuration of the above embodiments may be added to or substituted for the configuration of another of the above embodiments. All aspects included in the technical idea identified by the wording of the claims are embodiments of the present disclosure. [Explanation of symbols]

[0067] 1...vehicle seat, 2...seat cushion, 3...seat back, 4...First armrest, 6...Cushion frame, 7...First armrest frame, 61, 62... Side frame; 63, 64... Connecting member; 63A... Second nut; 71...Beam frame, 72...First bracket, 73...Second bracket, 74...Collar, 75...first fastener, 75A...first nut, 76...second fastener, 77...mounting member, 78A...third fastener, 78B...fourth fastener, 78C...fifth fastener, 79...column frame, 79A...Sixth fastener, 79B...Seventh fastener, 711...First opening, 712...Second opening, 721...first side wall, 722...first top wall, 722A, 722B, 722C...fastening hole, 731...Second side wall, 732...Second top wall, 732A, 732B, 732C...Fastening hole, 733...Support part, 771...First fastening hole, 772...Second fastening hole, 773...Third fastening hole.

Claims

1. Seat cushion and Armrest and a cushion frame supporting the seat cushion; an armrest frame supporting the armrest; Equipped with The armrest frame is a beam frame extending in the front-rear direction of the seat; a first bracket disposed on the outer side of the beam frame in the seat width direction; a second bracket arranged to sandwich the beam frame together with the first bracket in the seat width direction; a first fastener that connects the first bracket, the beam frame, and the second bracket in the seat width direction; Equipped with The vehicle seat, wherein the first bracket and the second bracket are each fixed to the cushion frame.

2. 2. The vehicle seat according to claim 1, The armrest frame has a cylindrical collar that penetrates the beam frame in the seat width direction, The vehicle seat, wherein the first fastener is inserted through the collar.

3. The vehicle seat according to claim 1 or 2, The cushion frame is a first side frame and a second side frame disposed apart from each other in a seat width direction; a connecting member that connects the first side frame and the second side frame in the seat width direction; and The vehicle seat, wherein the armrest frame has a second fastener that connects the first bracket and the connecting member in the axial direction of the connecting member.

4. The vehicle seat according to claim 1 or 2, the first bracket has a first upper wall extending inward in the seat width direction above a fastening portion by the first fastener, the second bracket extends outward in the seat width direction above a portion fastened by the first fastener and has a second upper wall that overlaps the first upper wall in the up-down direction, The vehicle seat, wherein the armrest frame has a third fastener that connects the first upper wall and the second upper wall in the vertical direction.

5. 5. The vehicle seat according to claim 4, the armrest frame has a mounting member fixed to the first bracket and the second bracket, The third fastener connects the mounting member, the first upper wall, and the second upper wall in the vertical direction.

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