JP2018043708A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to appropriately abut a bracket, which attaches a seat frame to a body-side base, so as to match the shape of the abutted face part of the seat frame.SOLUTION: A seat 1 is configured such that a side frame 21 (seat frame) is coupled to a slide rail 4 (a body-side base) on a floor F via a bracket 10 formed from one pressed material. In the bracket 10, an abutment face part 13, which is abutted on and joined to the side frame 21, has a shape having a plurality of branches. Each of the branch parts (a front abutment face part 13A and a rear abutment face part 13B) is individually abutted on and joined to the side frame 21.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle seat. More specifically, the present invention relates to a vehicle seat having a structure in which a seat frame is connected to a base on a body side through a bracket made of a single pressed material.

  Conventionally, in a vehicle seat, a configuration in which a seat frame is connected to a base on a floor via a bracket is known (Patent Document 1). The bracket described above is formed of a single pressed material. Specifically, the bracket includes a bottom plate portion that is fastened by being brought into contact with the upper surface portion of the base, a standing plate portion that rises from a position in the width direction away from the fastening portion of the bottom plate portion, and a tip of the standing plate portion that has been raised. And a side plate portion that is fastened to the side surface portion of the seat frame at a position.

Japanese Patent Laying-Open No. 2015-209068

  In the above prior art, when the side surface portion of the seat frame to which the side plate portion of the bracket is applied has a step shape having a large gap in the width direction (plate thickness direction), the above step shape is absorbed only by drawing the bracket. There are times when it cannot be done. The present invention was devised as a solution to the above-mentioned problem, and the problem to be solved by the present invention is to form a bracket for attaching the seat frame to the base on the body side in the form of a seating surface portion of the seat frame. It is to be able to be applied appropriately.

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

  A first invention is a vehicle seat in which a seat frame is connected to a base on a body side through a bracket made of a single pressed material. The bracket has a configuration in which a contact surface portion to be contacted and coupled to the seat frame is formed into a plurality of branched shapes, and each branched portion is individually applied to and coupled to the seat frame. .

  According to the first aspect of the present invention, each of the branched portions of the contact surface portion of the bracket is individually applied to the seat frame, so that the bracket can be appropriately applied according to the shape of the target surface portion of the seat frame. can do.

  The second invention is the following configuration in the first invention described above. Each branched part of the abutting surface portion of the bracket is configured to be applied to the seat frame by being bent in mutually different bent shapes.

  According to the second aspect of the invention, even if a circumferential length difference occurs in the extension length to the surface applied to the seat frame of each branched portion of the contact surface portion of the bracket, the circumferential length difference is different from each other. Absorption can be appropriately absorbed by the bent shape.

  The third invention is the following configuration in the first or second invention described above. Any one of the branched portions of the abutting surface portion of the bracket is configured to function as a rod support portion that receives a rod inserted through the seat frame from below.

  According to the third aspect of the present invention, any one of the branched portions of the contact surface portion of the bracket is effectively functioned as the rod support portion, and the other portions of the contact surface portion are restricted by the position of the rod support portion. And can be properly applied to the seat frame.

  According to a fourth invention, in any one of the first to third inventions described above, the following configuration is adopted. The seat frame swells in a partial area of the target surface part to which the part of the contact surface part of the bracket is applied to be coupled, and the other part region of the target surface part to which the other part of the contact surface part is applied and connected. It is the structure which has the obstruction shape which takes an oval shape. Any one of the branched portions of the contact surface portion of the bracket is bent into a shape that avoids interference with the obstacle shape.

  According to the fourth aspect of the invention, the bracket can be appropriately bent and applied to a seat frame having a partially bulged obstacle shape so as to avoid interference with the obstacle shape.

  According to a fifth invention, in any of the first to fourth inventions described above, the following configuration is adopted. The seat frame is configured as a side frame of the seat cushion. The base is configured as a slide rail having a top surface that is long in the front-rear direction and installed on the floor. A side surface portion of the side frame is disposed at a position that is offset from the center position of the upper surface portion of the slide rail toward one side in the width direction as a surface portion to be contacted with the bracket. A bottom plate portion to which the bracket is applied by being brought into contact with the upper surface portion of the slide rail, and a standing plate portion that rises in the height direction from an edge portion on one side in the width direction that is a lateral direction of the bottom plate portion. Is formed in a shape that is returned to the other side in the width direction from the edge portion where the standing plate portion rises and is applied to the side surface portion of the side frame.

  According to the fifth aspect of the invention, even if the side frame is configured to be offset in the width direction with respect to the installation position of the slide rail, the bracket has a different depth shape in some places according to the shape of the side frame It can be applied to the side part of the side frame in a narrowed shape.

  The sixth invention is the following structure in the fifth invention described above. Each of the abutment portions extending from the rising edge of the standing plate portion is branched by the standing plate portion being bent in a crank shape in the width direction in the middle in the front-rear direction. It is set as the structure from which the extension position of the width direction of a site | part differs.

  According to the sixth aspect of the invention, the branched portions can be caused to function in various different forms by changing the extending positions in the width direction of the branched portions of the contact surface portion of the bracket.

  The seventh invention is the following configuration in the fifth or sixth invention described above. Each of the branched portions of the abutting surface portion of the bracket has an extending portion that extends so as to approach the other adjacent one, and the extending portions approach each other in the front-rear direction. A welded portion for a side surface portion of the side frame is provided on each upper edge portion of one portion and a side edge portion facing the other portion of any one portion.

  According to the seventh aspect of the invention, even when the branched portions of the contact surface portion of the bracket are in an open relationship with each other, it is possible to exert a strong support force against an external load input between the respective portions. can do.

  An eighth invention is the following configuration according to any of the fifth to seventh inventions described above. The contact surface portion of the bracket has a bifurcated shape. One of the branched portions extends upward so as to bypass the flange that swells in the width direction formed at the lower edge of the side frame, and is connected to the side portion of the side frame. The other branched portion extends upward through a region off the flange formation region of the side frame and is connected to the side portion of the side frame so as to be coupled, and penetrates the side frame in the width direction. It is set as the structure which functions also as a rod support part which receives the rod inserted from below.

  According to the eighth aspect of the invention, one portion of the bracket contact surface portion that is bifurcated is caused to function as a bypass portion that bypasses the flange formed on the lower edge of the side frame, and the other portion is the side portion. Each part can be made to function effectively as a structure which functions as a support part of the rod inserted in a flame | frame.

1 is a perspective view illustrating a schematic configuration of a vehicle seat of Example 1. FIG. It is the II section enlarged view of FIG. FIG. 3 is an exploded perspective view of FIG. 2. FIG. 4 is a side view taken along the line IV in FIG. 2. It is the VV sectional view taken on the line of FIG. FIG. 6 is a sectional view taken along line VI-VI in FIG. 4.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing.

  First, the configuration of the seat 1 (vehicle seat) according to the first embodiment will be described with reference to FIGS. In the following description, when directions such as front / rear, up / down, left / right, and the like are indicated, the directions shown in the drawings are indicated.

  As shown in FIG. 1, the seat 1 of the present embodiment is configured as a left seat of an automobile, and includes a seat back (not shown) serving as a backrest portion of a seated occupant and a seat cushion 2 serving as a seating portion. It is set as the structure provided. The above-described seat back (not shown) is supported by connecting the left and right side portions on the lower end side to the left and right side portions on the rear end side of the seat cushion 2. The seat cushion 2 is configured to be connected to the floor F of the vehicle via a pair of left and right slide rails 4 therebetween. The seat 1 described above can adjust the position in the front-rear direction on the floor F by the connection via the slide rails 4 described above.

  In the seat cushion 2 described above, the metal cushion frame 20 constituting the inner skeleton thereof has a pair of left and right side frames 21 extending in the front-rear direction and each of the standing side frames 21 and the front end side of each side frame 21. A front plate 22 in the form of a horizontal plate that is integrally bridged between the upper surface portions, a front pipe 23 that is bridged by being inserted between the front portions of the side frames 21 in the vehicle width direction, and the side frames 21. The rear pipe 24 is inserted in a state of penetrating in the vehicle width direction between the rear portions and bridged, and is assembled into a substantially square frame shape in plan view. Here, the rear pipe 24 described above corresponds to the “rod” of the present invention.

  In the seat cushion 2 described above, the front pipe 23 and the rear pipe 24 that are bridged between the side frames 21 of the cushion frame 20 described above connect the pair of left and right front brackets 3A and 3B and the rear brackets 3C and 3D, respectively. By being integrally attached to the upper part of the slide rail 4 on each side via the slide rail 4, the state is attached as a state of being supported from below on the floor F via the slide rail 4.

  Here, each slide rail 4 described above is provided in a state of being integrally fixed on the floor F, and has a lower rail 4A having a long rail shape in the front-rear direction, and slides only in the front-rear direction with respect to the lower rail 4A. The upper rail 4 </ b> B has a rail shape that is long in the front-rear direction and is assembled in a possible state. For each slide rail 4 configured as described above, the pair of left and right front brackets 3A, 3B and rear brackets 3C, 3D described above are on the upper surface portion 4B1 of each upper rail 4B exposed from the lower rail 4A on each side. It is in a state where it is set and connected integrally by bolt fastening.

  The front brackets 3A and 3B and the rear brackets 3C and 3D described above are assembled by assembling the slide rails 4 on the upper rails 4B and assembling the front pipe 23 and the rear pipe 24 on the upper parts thereof. Each of the side frames 21 of the cushion frame 20 described above is shifted from the center position C (see FIG. 5) on the upper surface 4B1 of the upper rail 4B of each slide rail 4 to the inner side (right side) in the vehicle width direction. It is supposed to be placed. With the offset arrangement, as shown in FIG. 1, the seat 1 is arranged in a state in which there is a gap between the left wall surface (not shown). Here, the slide rail 4 described above corresponds to the “base” of the present invention.

  Of the front brackets 3A and 3B and the rear brackets 3C and 3D described above, the rear bracket 3D disposed on the right side, which is the inner side in the vehicle width direction, is a single press member as shown in FIGS. It is comprised by the bracket 10 which consists of. The bracket 10 includes a bottom plate portion 11 that is brought into contact with and coupled to the upper surface portion 4B1 of the above-described upper rail 4B, and an inner edge portion (right side) in the vehicle width direction that is an offset direction of the side frame 21 of the bottom plate portion 11. A standing plate portion 12 that rises vertically from the side, a contact surface portion 13 that extends from the edge portion of the standing plate portion 12 that rises and is applied to and coupled to the side surface portion 21A on the inner side (left side) of the side frame 21; It is formed in the form which has. Here, the side frame 21 described above corresponds to the “seat frame” of the present invention, and the side surface portion 21A corresponds to the “covered surface portion” of the present invention.

  Specifically, the above-described standing plate portion 12 has a standing plate shape bent in a crank shape in the vehicle width direction at an intermediate position in the front-rear direction near the rear end portion. With the above configuration, the upright plate portion 12 has a position in which the outer plate surface portion 12A located on the front side of the portion bent in the crank shape deviates from the upper surface portion 4B1 of the upper rail 4B to the inner side (right side) in the vehicle width direction. The inner plate surface portion 12B positioned on the rear side of the crank-shaped portion is formed from the rear region on the upper surface portion 4B1 of the upper rail 4B, whereas the shape rises upward (see FIG. 5). The configuration is such that it rises upward (see FIG. 2).

  As shown in FIGS. 2 to 4, the abutting surface portion 13 is folded outward (left side) in the vehicle width direction from the edge of the rising edge of the outer plate surface portion 12 </ b> A of the upright plate portion 12 described above to the upper side. The front contact surface portion 13A that extends and the rear contact surface portion 13B that extends upward from the edge of the above-described rising edge of the inner plate surface portion 12B are separately formed. As shown in FIGS. 2 to 3 and 5, the front contact surface portion 13 </ b> A described above is referred to as the offset direction of the side frame 21 described above from the upper edge portion of the outer plate surface portion 12 </ b> A of the standing plate portion 12 described above. A shape in which a bent portion 13A1 is formed which is folded back substantially vertically toward the outer side (left side) in the vehicle width direction, which is the opposite side, and is then bent back upward in a C shape. It is said that. The front contact surface portion 13A is further bent into a shape that rises straight upward from the previous end portion that extends above the bent portion 13A1, and comes into surface contact with the inner side surface portion 21A of the side frame 21. It is set as the shape in which the contact part 13A2 applied to a state was formed.

  Here, the side frame 21 described above has a configuration in which a flange-like upper flange 21B that is bent inward (right side) in the vehicle width direction along the same edge portion is formed on the upper edge portion. . In addition, the side frame 21 described above is also bent at the lower edge portion of the side frame 21 to the outside (left side) in the vehicle width direction along the edge portion, and then to the U side in the lateral direction to the inside (right side) in the vehicle width direction. The lower flange 21 </ b> C bent into a letter shape is formed. The lower flange 21 </ b> C is configured to bulge outward (left side) in the vehicle width direction with respect to the side surface portion 21 </ b> A inside the side frame 21. The side frame 21 has a configuration in which rigidity and strength against bending and twisting are increased by the configuration including the upper flange 21B and the lower flange 21C. The lower flange 21 </ b> C is not formed up to the rear edge of the side frame 21 as the shape described above, but is formed up to the rear side region over the region where the bracket 10 is disposed. Here, the lower flange 21 </ b> C described above corresponds to the “flange” and the “failure shape” of the present invention, respectively.

  As shown in FIGS. 2 to 5, the abutting surface portion 13 of the bracket 10 described above with respect to the side frame 21 configured as described above has a front abutting surface portion 13 </ b> A formed on the lower flange 21 </ b> C of the side frame 21 described above. The side frame is located on the upper side of the lower flange 21C while passing through the outer side (left side) in the vehicle width direction from the lower side by the shape of the bent portion 13A1 bent back into the C shape. 21 is provided in a state of being applied to the side surface portion 21A inside. Moreover, as shown in FIGS. 2 to 4 and 6, the abutting surface portion 13 of the bracket 10 described above is a rear side in which the rear abutting surface portion 13 </ b> B does not pass through the formation portion of the lower flange 21 </ b> C of the side frame 21 described above. This region is provided so as to be applied to the side surface portion 21 </ b> A on the inner side of the side frame 21 so as to extend straight upward.

  Specifically, as shown in FIG. 3, the rear contact surface portion 13 </ b> B described above is inserted into the above-described side frame 21 so as to penetrate into a portion applied to the side surface portion 21 </ b> A inside the side frame 21. A through-hole 13B1 through which the through-hole 13B1 can be passed and an extension portion 13B2 that extends from the front region of the formation location of the through-hole 13B1 to the front side in an arm shape are formed. The former through hole 13B1 has a shape having a round hole shape that matches the round hole shaped through hole 21D through which the rear pipe 24 formed through the side frame 21 is passed. The latter extension part 13B2 is in a state in which a slight gap T is provided in the front-rear direction from the rear side at substantially the same height position with respect to the contact part 13A2 of the front contact surface part 13A described above by extending to the front side. It is set as the structure which will be in the state brought close to the position which becomes.

  As described above, the contact surface portion 13 of the bracket 10 applied to the side surface portion 21A on the inner side of the side frame 21 includes an upper edge portion of the contact portion 13A2 of the front contact surface portion 13A, as shown in FIGS. The upper edge portion and the front edge portion of the extending portion 13B2 of the rear contact surface portion 13B are welded to the side surface portion 21A inside the side frame 21 by arc welding (welded portion). W). In this way, the contact surface portion 13 of the bracket 10 has a shape in which the front contact surface portion 13A and the rear contact surface portion 13B are separated from each other instead of a continuous shape. Even if the extending positions in the vehicle width direction are different, each of them can be drawn without difficulty so as to be properly applied to the side surface portion 21A inside the side frame 21.

  More specifically, the abutting surface portion 13 of the bracket 10 is elongated from the upright plate portion 12 in the vehicle width direction so that the front abutting surface portion 13A bypasses the portion where the lower flange 21C of the side frame 21 is formed in the vehicle width direction. Whereas the rear abutting surface portion 13B is formed in a shape that extends straight upward in a portion where the lower flange 21C of the side frame 21 is not formed. Yes. As described above, the contact surface portion 13 of the bracket 10 is a portion that is applied to the side surface portions 21A on the inner side of these side frames 21 due to the different extension lengths of the front contact surface portion 13A and the rear contact surface portion 13B. The extension lengths (peripheral lengths) in the vehicle width direction and the height direction up to (the contact part 13A2 and the extension part 13B2) are different from each other. However, even in such a configuration, the contact surface portion 13 of the bracket 10 has a front contact surface portion 13A and a rear contact surface portion 13B which are separated from each other instead of a continuous shape. Each of them can be drawn without difficulty so as to be applied to the side surface portion 21A inside the side frame 21 appropriately.

  As described above, the abutting surface portion 13 of the bracket 10 is configured so that the abutting portion 13A2 of the front abutting surface portion 13A and the extending portion 13B2 of the rear abutting surface portion 13B have a gap T in the front-rear direction. Even if it is set as the structure (welded part W) applied and welded to the inner side surface part 21A, the welded part W on one side (extension part 13B2) is provided in a shape extending vertically facing the gap T. Therefore, even if an external load such as a seating load input to the side frame 21 is input in a form passing through the region of the gap T, the load can be strongly received. Specifically, even if an external load such as a seating load is input to the side frame 21 described above obliquely from the front upper side to the rear lower side through the gap T, By providing the welded portion W that extends in the vertical direction facing the gap T, the load is transmitted from the welded portion W to the extension portion 13B2 of the bracket 10 and the load is strongly received by the bracket 10. Can be done. In addition, the welding part W provided in the shape extended in the vertical direction facing the said clearance gap T may be provided not in the extension site | part 13B2, but in the contact site | part 13A2, and may be provided in both.

  As shown in FIGS. 2 to 4, a support patch P that functions to support the rear pipe 24 is integrally welded to the bracket 10 described above on the inner side surface portion 12 </ b> B of the standing plate portion 12. Has been fixed. Further, the bracket 10 described above is also integrally provided with a belt anchor bracket B (see FIG. 3) that serves as a mounting tool for a seat belt buckle (not shown) on the outer side surface portion 12A of the outer plate surface portion 12A of the standing plate portion 12. It is welded and fixed to.

  In summary, the sheet 1 of the present embodiment has the following configuration. That is, the vehicle seat (seat 1) is configured such that the seat frame (side frame 21) is connected to the base (slide rail 4) on the body side via a bracket (bracket 10) made of a single pressed material. is there. The bracket (bracket 10) is formed in a shape in which a contact surface portion (abutment surface portion 13) that is contacted and joined to the seat frame (side frame 21) is branched into a plurality of portions, and each branched portion (front side contact). The surface portion 13A and the rear contact surface portion 13B) are individually applied to the seat frame (side frame 21) and coupled. In this way, each of the branched portions (the front contact surface portion 13A and the rear contact surface portion 13B) of the contact surface portion (the contact surface portion 13) of the bracket (bracket 10) is individually applied to the seat frame (side frame 21). Thus, the bracket (bracket 10) can be appropriately applied in conformity with the shape of the receiving surface portion (side surface portion 21A) of the seat frame (side frame 21).

  Further, each branched portion (front side contact surface portion 13A and rear side contact surface portion 13B) of the contact surface portion (the contact surface portion 13) of the bracket (bracket 10) bends different from each other with respect to the seat frame (side frame 21). It is configured to be applied in a shape and combined. With such a configuration, the seat frame (side frame 21) of each of the branched portions (the front contact surface portion 13A and the rear contact surface portion 13B) of the contact surface portion (the contact surface portion 13) of the bracket (bracket 10). Even if a circumferential length difference occurs in the extension length to the contacted surface, this circumferential length difference can be appropriately absorbed by different bending shapes of the respective parts.

  Also, a rod (rear pipe) in which any one of the branched portions of the contact surface portion (the contact surface portion 13) of the bracket (bracket 10) (the rear contact surface portion 13B) penetrates and is inserted into the seat frame (side frame 21). 24) is configured to function also as a rod support portion that receives the lower side. By having such a configuration, while effectively functioning as a rod support portion (rear side contact surface portion 13B) of each of the branched portions of the contact surface portion (the contact surface portion 13) of the bracket (bracket 10), The other part (front side contact surface part 13A) of the contact surface part (the contact surface part 13) can be appropriately applied to the seat frame (side frame 21) without being restricted by the position of the rod support part.

  In addition, the seat frame (side frame 21) is a portion of the contact surface portion (side surface portion 21A) to which a part (front contact surface portion 13A) of the contact surface portion (contact surface portion 13) of the bracket (bracket 10) is applied. Obstacle shape which takes a shape swollen more than the other part area of the face part (side face part 21A) to which the other part (rear side face part 13B) is applied to a part of the face part (seat face part 13). It is set as the structure which has (lower flange 21C). Any one of the branched portions of the contact surface portion (the contact surface portion 13) of the bracket (bracket 10) (the front contact surface portion 13A is bent into a shape that avoids interference with the obstacle shape (the lower flange 21C). With such a configuration, the bracket (bracket 10) can be appropriately attached to the seat frame (side frame 21) having a partially bulged obstacle shape (lower flange 21C). It can be bent and applied in a shape that avoids interference with the obstacle shape (lower flange 21C).

  The seat frame is configured as a side frame (side frame 21) of the seat cushion (seat cushion 2). The base is configured as a slide rail (slide rail 4) having an upper surface portion (upper surface portion 4B1) elongated in the front-rear direction, which is installed on the floor (floor F). The center position (center position C) of the upper surface portion (upper surface portion 4B1) of the slide rail (slide rail 4) as the surface portion to which the side surface portion (side surface portion 21A) of the side frame (side frame 21) is applied to the bracket (bracket 10). : Refer to FIG. 5) at a position offset from one side in the width direction. The width of the bottom plate portion (bottom plate portion 11) and the bottom plate portion (bottom plate portion 11) that are offset from each other when the bracket (bracket 10) is applied to the upper surface portion (upper surface portion 4B1) of the slide rail (slide rail 4). A standing plate portion (standing plate portion 12) that rises in the height direction from an edge on one side of the direction, and the abutting surface portion (abutting surface portion 13) is the tip of the standing plate portion (standing plate portion 12) It is made into the shape extended from the edge part to the other side of a width direction, and the shape applied to the side part (side part 21A) of a side frame (side frame 21). With such a configuration, even if the side frame (side frame 21) is provided offset in the width direction with respect to the installation position of the slide rail (slide rail 4), the bracket (bracket 10 ) Can be appropriately applied to the side surface (side surface portion 21A) of the side frame (side frame 21) in a shape that is narrowed down to different depth shapes in accordance with the shape of the side frame (side frame 21).

  In addition, since the standing plate portion (standing plate portion 12) is bent in a crank shape in the width direction at an intermediate position in the front-rear direction, the standing plate portion (standing plate portion 12) is raised. The extending positions in the width direction of the branched portions (the front contact surface portion 13A and the rear contact surface portion 13B) of the contact surface portion (the contact surface portion 13) extending from the edge portion are different from each other. In this way, each branching point is made by varying the extending position in the width direction of each branched portion (front side abutting surface portion 13A and rear side abutting surface portion 13B) of the abutting surface portion (abutting surface portion 13) of the bracket (bracket 10). The parts (the front contact surface portion 13A and the rear contact surface portion 13B) can function in various different forms.

  Further, one of the branched portions of the contact surface portion (the contact surface portion 13) of the bracket (bracket 10) (the rear contact surface portion 13B) approaches the other adjacent one (the front contact surface portion 13A). Of the two parts (the contact part 13A2 and the extension part 13B2) that are close to each other in the front-rear direction by the extension part (extension part 13B2). Each upper edge part and one part (extension part 13B2) with respect to the side part (side part 21A) of the side frame (side frame 21) are respectively opposed to the other part (the contact part 13A2). A welded portion (welded portion W) is provided. With such a configuration, the branched portions of the contact surface portion (the contact surface portion 13) of the bracket (bracket 10) (the front contact surface portion 13A and the rear contact surface portion 13B) are open to each other. Moreover, it can be set as the structure which can exhibit strong supporting force with respect to the external load input between each site | part (area | region of the clearance gap T between the contact site | part 13A2 and extension site | part 13B2).

  Further, the contact surface portion (the contact surface portion 13) of the bracket (bracket 10) has a bifurcated shape. One of the branched portions (the front contact surface portion 13A) extends upward in such a way as to bypass the flange (lower flange 21C) formed in the lower edge of the side frame (side frame 21) and expanding in the width direction. The side frame (side frame 21) of the side frame (side frame 21) is contacted and coupled to the side surface (side surface 21A). The other branched portion (rear-side contact surface portion 13B) extends upward through a region (rear region) that is out of the formation region of the flange (lower flange 21C) of the side frame (side frame 21). The rod (rear pipe 24) is inserted into the side frame (side frame 21) so as to pass through the side frame (side frame 21 </ b> A). It is set as the structure which functions also as a rod support part received from. With such a configuration, one portion (front contact surface portion 13A) branched in a bifurcated shape of the contact surface portion (contact surface portion 13) of the bracket (bracket 10) is placed on the lower side of the side frame (side frame 21). Of the rod (rear pipe 24) inserted into the side frame (side frame 21) with the other part (rear-side contact surface part 13B) functioning as a detour part for detouring the flange (lower flange 21C) formed at the edge of Each part can be made to function effectively as a structure to function as a support part.

  As mentioned above, although the embodiment of the present invention has been described using one example, the present invention can be implemented in various forms in addition to the above example. For example, the “vehicle seat” of the present invention can be applied to a seat other than the left seat of an automobile, and is also used for vehicles other than automobiles such as railways, and other vehicles such as airplanes and ships. It can be widely applied to sheets.

  In addition to the seat cushion, the configuration of the present invention is also applied to a configuration in which a seat frame constituting a skeleton of other seat components such as a seat back, a headrest, and an ottoman is connected to a base on the body side via a bracket. Is something that can be done. In addition to the slide rail installed on the floor, the body-side base can be applied to various members made up of a fixed body or a movable body such as a frame material constituting a floor panel or some support base. is there.

  Further, the abutting surface portion that is abutted and coupled to the seat frame of the bracket may be formed to branch into three or more branches. Further, the branched portions of the abutting surface portion of the bracket may be formed to have the same extension length (peripheral length) or curved shape. In addition, each of the branched portions of the abutting surface portion of the bracket may function as a rod support portion. In addition, the obstruction shape formed on the seat frame consists of a flange, a cut-and-raised portion for attaching or hitting some equipment, and a shape provided by protruding from another member. May be.

  Further, the rod inserted through the seat frame, supported from the lower side by any one of the branched portions of the bracket contact surface portion, is any one of the branched portions of the bracket contact surface portion. It may be supported so as to be rotatable relative to each other, or may be integrally coupled and supported.

1 seat (vehicle seat)
2 Seat cushion 3A, 3B Front bracket 3C, 3D Rear bracket 4 Slide rail (base)
4A Lower rail 4B Upper rail 4B1 Upper surface portion 10 Bracket 11 Bottom plate portion 12 Standing plate portion 12A Outer plate surface portion 12B Inner plate surface portion 13 Abutting surface portion 13A Front abutting surface portion 13A1 Bending portion 13A2 Abutting portion 13B Rear abutting surface portion 13B1 Through hole 13B2 Cushion frame 21 Side frame (seat frame)
21A Side surface (covered surface)
21B Upper flange 21C Lower flange (flange, obstruction shape)
21D Through hole 22 Front panel 23 Front pipe 24 Rear pipe (rod)
W Welded part T Clearance P Support patch B Belt anchor bracket F Floor C Center position

Claims (8)

A vehicle seat having a structure in which a seat frame is connected to a base on a body side through a bracket made of a single press material,
The bracket has a configuration in which a contact surface portion to be contacted and coupled to the seat frame is formed into a plurality of branched shapes, and each branched portion is individually applied to and coupled to the seat frame. Vehicle seats that are used. The vehicle seat according to claim 1,
A vehicle seat configured such that each branched portion of the abutting surface portion of the bracket is connected to the seat frame in a different bent shape. The vehicle seat according to claim 1 or 2,
A vehicle seat in which any one of the branched portions of the abutting surface portion of the bracket also functions as a rod support portion that receives a rod inserted through the seat frame from below. The vehicle seat according to any one of claims 1 to 3,
In the seat frame, in addition to the abutting surface portion, the other portion of the abutting surface portion is abutted and coupled to a partial region of the abutting surface portion to which a part of the abutting surface portion of the bracket is abutted and coupled. It is configured to have an obstacle shape that takes a shape that swells more than the part region, and any one of the branched parts of the contact surface portion of the bracket is bent into a shape that avoids interference with the obstacle shape. Vehicle seats. The vehicle seat according to any one of claims 1 to 4,
The seat frame is configured as a side frame of a seat cushion, the base is configured as a slide rail having a long upper surface portion in the front-rear direction where the base is installed on the floor, and a side surface portion of the side frame is applied to the bracket It is arranged at a position offset from the center position of the upper surface portion of the slide rail to the one side in the width direction as a contact surface portion,
A bottom plate portion where the bracket is brought into contact with and coupled to the upper surface portion of the slide rail, and a standing plate portion which rises in the height direction from an edge on one side in the width direction which is the offset direction of the bottom plate portion, A vehicle seat having a shape in which the abutting surface portion is extended from the edge portion where the standing plate portion is raised to the other side in the width direction so as to be applied to the side surface portion of the side frame. . The vehicle seat according to claim 5,
Each of the abutment surface portions extending from the rising edge of the upright plate portion is formed by bending the upright plate portion into a crank shape in the width direction at an intermediate position in the front-rear direction. A vehicle seat having a configuration in which the extending position in the width direction of each portion is different. The vehicle seat according to claim 5 or 6,
One of the branched portions of each of the contact surface portions of the bracket has an extending portion that extends toward the other adjacent one, and approaches each other in the front-rear direction by the extending portion. A vehicle seat in which welded portions to the side surface portions of the side frames are respectively provided on the upper edge portions of the two portions and the side edge portions facing the other portion of any one portion. The vehicle seat according to any one of claims 5 to 7,
The abutting surface portion of the bracket is bifurcated, and one of the branched portions extends upward in such a way as to bypass the flange that swells in the width direction formed at the lower edge of the side frame. The other part of the side frame is connected to the side portion of the side frame, and the other branched portion extends upward through a region outside the flange formation region of the side frame and is applied to the side portion of the side frame. A vehicle seat that is configured to function as a rod support portion that receives a rod inserted through the side frame in the width direction from below.

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