JP6161150B2 - Seat back upper frame - Google Patents

Description

  The present invention relates to a support structure for a bracket (headrest bracket), and more particularly to a bracket provided without welding in an attachment hole of an upper frame of a vehicle (which becomes a frame body of a seat back frame). The invention disclosed in Japanese Patent Application Laid-Open No. 2012-121465 relates to an evolved support structure.

  Conventionally, a method (support structure) in which a bracket is attached to the crushing portion of the upper frame, the attachment portion is welded, and the bracket is fixed is employed. However, since this method performs welding, there are problems such as complicated work processes and skill, and problems such as quality deterioration such as distortion and poor welding.

  In view of this, Japanese Patent Application Laid-Open No. 2012-121465 proposes a method in which welding is reduced as much as possible. That is, a method has been proposed in which the upper frame is constituted by a front / rear panel, a bracket is inserted into a mounting hole of the front / rear panel, and a part thereof is welded. Therefore, it is clear that it has evolved from the conventional method (apparatus). The present invention intends to further evolve the invention of Japanese Patent Application Laid-Open No. 2012-121465.

  Japanese Patent Laid-Open No. 11-216037 discloses an invention that can be considered related to a bracket replacement unit. However, the present invention has a structure in which the headrest support mounting member is provided between the upper frame (upper frame body) and the upper reinforcing member, and cannot be said to be a bracketless or a bracket replacement unit for the upper frame.

  In view of the above, the present invention achieves [a] welding-less (no welding as a rule, no welding), omitting welding equipment in the conventional vehicle production process, maintenance-free or place, and human resources Achieve less. In addition, [b] Deflection due to impact of the upper frame and / or headrest stay (resolving insufficient strength) will be attempted. [C] Resolving insufficient strength with a simple method and structure. For example, using two or more support means such as fitting, caulking, or locking provided in the mounting hole of the upper frame or the mounting hole of the bracket alternative unit of the upper frame, both of them are securely supported. To achieve. [D] Prevents looseness between the bracket and the mounting hole of the upper frame or the bracket substitute unit of the upper frame to ensure a sense of silence during traveling. [E] Manufacture upper frame and bracket (bracket replacement unit) to make the structure (weldless) that can be assembled to improve strength and prevent torsion, breakage (breakage), or human injury (damage) Plan. [F] When a square tube shape in which the bracket is clinched or a square tube shape is adopted for the bracket replacement unit of the upper frame, strength can be secured and deformation can be prevented. “G” For example, by making the end surface of the bracket (bracket replacement unit) and / or the mounting hole into a rectangular shape (rectangular cylindrical shape), it is possible to improve strength and prevent torsion, breakage, human injury, etc. Plan. [H] It is possible to achieve the objectives [A] to [G] without using any auxiliary means or members.

JP 2012-121465 A JP-A-11-216037

  In order to further enhance the characteristics of the proposed invention, the present invention is to achieve the above-mentioned [A] to [H].

  The inventions according to claims 1 to 10 intend to achieve the objects of the “a” to “h”.

According to the first aspect of the present invention, a bracket for supporting the headrest support is inserted into the headrest support mounting hole of the upper frame of the seat from above, and at least two fittings, caulking, Alternatively, a support means by locking is provided, and both the support means are used, and the bracket is supported by the upper frame in the upper frame of the seat back.
The Appafu an elastic piece which is curved inwardly on one side of the record over arm, the resilient piece is a upper frame of the seat back that is configured to衝止on one side portion of the bracket.

According to the invention of claim 2, a bracket for supporting the headrest support and a unit for supporting the bracket are provided in a rectangular mounting hole of the top plate portion of the upper frame of the seat, and the headrest support is inserted into this unit. The mounting hole is inserted from above, and at least two or more support means by fitting, caulking, or locking are provided in the bracket and the attachment hole, respectively, and both support means are used. In the upper frame of the seat back that supports the bracket to the upper frame,
The Appafu an elastic piece which is curved inwardly on one side of the record over arm, the resilient piece is a upper frame of the seat back that is configured to衝止on one side portion of the bracket.

The invention of claim 3 is the upper frame of the seat back according to claim 1 or claim 2,
The upper frame of the seat back is configured to include the first and second panels, and the first and second panels can be combined.

The invention of claim 4 is the upper frame of the seat back according to claim 3,
The upper frame of the seat back is constituted by first and second panels, and elastic means is provided on one or both of the first and second panels.

The invention of claim 5 is the upper frame of the seat back according to claim 4 ,
An upper frame of a seat back configured to provide the supporting means on the elastic means.

The invention of claim 6 is the upper frame of the seat back according to claim 3,
Wherein the upper frame, and composed of first and second panels, the upper frame of the first-second panels, fitting, caulking, or structure and the seat back to allow assembly in coalescing means by engaging It is.

The invention of claim 7 is the upper frame of the seat back according to claim 6 ,
It is an upper frame of a seat back in which the uniting means is configured to be provided at an overlapping portion above the first and second panels.

The invention according to claim 8 is the upper frame of the seat back according to any one of claims 3, 4, or 6 ,
The seat back upper frame is configured such that one place where the first and second panels are combined is provided by the support means provided on the bracket and the support means provided on the first and second panels.

The invention of claim 9 is the upper frame of the seat back according to claim 2 ,
The bracket or the unit is an upper frame of a seat back configured to have a rectangular cylindrical shape.

According to the first aspect of the present invention, the bracket for supporting the headrest support is inserted into the headrest support mounting hole of the upper frame of the seat from above, and at least two fittings, caulking, or In the upper frame of the seat back that provides support means by locking, uses both support means, and supports the bracket to the upper frame.
The one side portion of Appafu les over arm an elastic piece which is curved inwardly, the elastic piece, a upper frame structure as the seat back to衝止on one side portion of the bracket, the following claims Same characteristics as 2.

In the invention of claim 2, a bracket for supporting the headrest support and a unit for supporting the bracket are provided in a rectangular mounting hole of the top plate portion of the upper frame of the seat, and the headrest support can be inserted into this unit. In addition, the bracket is inserted into the mounting hole from above, and at least two or more support means by fitting, caulking, or locking are provided in the bracket and the mounting hole, respectively. In the upper frame of the seat back that is supported by the upper frame,
The one side portion of Appafu les over arm an elastic piece which is curved inwardly, the elastic piece, a upper frame structure as the seat back to衝止on one side portion of the bracket, the following characteristics is there.
[I-1] By achieving welding-less (no welding as a rule, no welding), it is possible to omit the welding equipment in the conventional vehicle production process, maintenance-free, place, and personnel-less.
[B-1] Deflection due to impact of the upper frame and / or the headrest stay can be eliminated (the lack of strength is eliminated).
[C-1] Achieving strength deficiency with a simple method and structure. For example, use two or more support means such as fitting, caulking, or locking provided in the bracket and upper frame mounting holes, or the upper frame bracket replacement unit mounting holes. This can be achieved with a configuration that supports the above.
[D-1] The bracket and the upper frame, or the mounting hole of the bracket alternative unit of the upper frame are prevented to prevent backlash and ensure a quiet feeling during traveling.
[E-1] An upper frame and bracket (bracket replacement unit) will be manufactured and assembled into a structure that can be assembled (no welding), and will be improved in strength, twisted, broken (damaged), or damaged by human injury (damaged). Prevention can be achieved.
[Chi-1] Uses an elastic piece to help prevent noise.
[Li-1] It is possible to achieve the objectives [A] to [E] without requiring any auxiliary means or members.

  According to a third aspect of the present invention, there is provided an upper frame of a seat back in which the upper frame is composed of first and second panels, and the first and second panels can be combined. Same characteristics as 2.

  According to a fourth aspect of the present invention, there is provided an upper frame of a seat back in which the upper frame is configured by first and second panels, and elastic means is provided on one or both of the first and second panels. , Claim 1 or Claim 2 has the same characteristics.

The invention according to claim 5 is an upper frame of the seat back in which the elastic means is provided with the support means, and has the same features as those of claim 1 or claim 2.

The invention of claim 6, the upper frame, and composed of first and second panels, the first and second panels, and fitting, caulking, or a configuration that enables assembly by coalescing means by engaging The upper frame of the seat back has the same characteristics as those of the first or second aspect.

The invention according to claim 7 is an upper frame of the seat back in which the uniting means is provided at the overlapping portion above the first and second panels, and has the same features as those of claim 1 or claim 2.

The invention according to claim 8 is an upper frame of a seat back configured such that one unit of the first and second panels is formed by a support means provided on the bracket and a support means provided on the first and second panels. Yes, and has the same features as claim 1 or claim 2.

The invention according to claim 9 is an upper frame of a seat back in which the bracket or the unit is configured to have a rectangular cylindrical shape, and in addition to the above-mentioned [A-1] to [E-1], There are the features [H-1] and [G-1].
[F-1] When the square tube shape is used for the square tube shape in which the bracket is clinched or the unit of the upper frame, it is possible to secure strength and prevent deformation.
[G-1] For example, by making the bracket ( unit ) end face and / or the mounting hole into a rectangular shape (rectangular cylindrical shape), it is possible to improve the strength and prevent torsion, destruction, human injury, etc. Plan.

Scale perspective view showing the entire structure of the sheet through Perspective view of a partial defect showing the relationship between the seat back and the headrest device A perspective view showing an example of a bracket and viewed from the side of the clinch A perspective view showing an example of the bracket as seen from the front side The perspective view which showed an example of another bracket and was seen from the connection side A perspective view showing an example of another bracket A partially omitted illustration of the main part illustrating an example in which a bracket is provided (positioned) using a panel structure upper frame unit (or side frame unit). Sectional drawing which expanded and showed the principal part (upper frame and upper frame location of a seat back) which showed 1st Example, and was seen from the perpendicular direction. FIG. 4A is an exploded perspective view of the main frame showing the first and second panels (front and rear panels) of the upper frame. Sectional drawing which expanded and showed the principal part which showed one plan of 2nd Example, and was seen from the perpendicular direction An enlarged cross-sectional view of the main part showing two proposals of the second embodiment The main part which showed one proposal of 3rd Example is expanded and shown, Sectional drawing which looked at the arrow from the perpendicular direction, and one part enlarged view An enlarged cross-sectional view of the main part showing two proposals of the third embodiment The main part which showed other 3 plans of the 3rd example was expanded, and the sectional view which looked at from the perpendicular direction, and some enlarged views Expanded sectional view of the main part showing the four plans of the third embodiment The main part which showed one plan of 4th Example is expanded and shown, Sectional drawing seen from the vertical direction, and one part enlarged view Enlarged sectional view of the main part showing the two plans of the fourth embodiment Sectional drawing which expanded and showed the principal part which showed 5th Example, and was seen from the perpendicular direction An enlarged cross-sectional view of the main part showing two proposals of the fifth embodiment Sectional drawing which expanded and showed the principal part which showed one plan of 6th Example, and was seen from the perpendicular direction Enlarged sectional view of the main part showing two proposals of the sixth embodiment The principal part which showed one plan of 7th Example is expanded and shown, Sectional drawing which looked at from the perpendicular direction, and one part enlarged view The expanded sectional view of the principal part which showed two plans of the 7th example Sectional drawing which expanded and showed the principal part of the crimping which showed other 3 plans of 7th Example, and was seen from the perpendicular direction Sectional drawing which expanded and showed the principal part which showed one plan of 8th Example, and was seen from the perpendicular direction The expanded sectional view of the principal part which showed two proposals of 8th Example Sectional view showing an enlarged main part of the caulking showing the three plans of the eighth embodiment, as viewed from the vertical direction Schematic cross-section showing the main part of the mounting hole for the headrest support of the upper frame of the draft of the ninth embodiment, partially enlarged view Schematic cross-sectional view showing the relationship between the upper frame and the headrest support of the second plan of the ninth embodiment, partially enlarged view Schematic cross-section showing the main part of the headrest support on the upper frame Schematic cross-section showing the relationship between the upper frame and the headrest support of the third plan of the ninth embodiment, partially enlarged view Cross-sectional schematic diagram showing the relationship between the upper frame and the headrest support of the fourth plan of the ninth embodiment, partially enlarged view Sectional schematic diagram showing the relationship between the upper frame and the headrest support of the fifth plan of the ninth embodiment Cross-sectional schematic diagram showing the relationship between the upper frame and the headrest support of the sixth plan of the ninth embodiment Cross-sectional schematic diagram showing the relationship between the upper frame and the headrest support in the seventh plan of the ninth embodiment, partially enlarged view Sectional schematic diagram showing the relationship between the upper frame and the headrest support according to the tenth embodiment. Sectional schematic diagram showing the relationship between the upper frame and the headrest support of the two alternatives of the tenth embodiment Sectional view of another plan of FIG. Cross-sectional view of other two alternatives shown in FIG. The cross-sectional schematic diagram which showed the principal part of the headrest support state of the upper frame of the plan of 11th Example Schematic cross-sectional view showing the relationship between the upper frame and the headrest support of the eleventh embodiment 15-1 is a cross-sectional view of another plan Schematic cross-sectional view showing the relationship between the upper frame and the headrest support in one draft of the twelfth embodiment, partially enlarged view Schematic cross-section showing the relationship between the upper frame and the headrest support of the two alternatives of the twelfth embodiment, partially enlarged view The principal part of the mounting hole for the headrest support of the upper frame of the proposal of 13th Example, and the cross-sectional schematic diagram which showed the headrest support The main part of the mounting hole for headrest support of the upper frame of the 2nd plan of 13th Example, and the cross-sectional schematic diagram which showed the headrest support The main part of the mounting hole for headrest support of the upper frame of the 3rd plan of 13th Example, and the cross-sectional schematic diagram which showed the headrest support A list of caulking locks, fitting locks, plug locks, cover locks, pinching locks, and elastic locks (fixed) for the first to eighth embodiments is shown, and a preferred example of each embodiment is shown. Table Table showing an example of the combination status of each plan of the ninth to twelfth embodiments The table | surface which showed the list regarding the bending piece part regarding the 9th-12th Example, the overlap part, the elastic piece, the insertion latching, and the free end part of a bending piece part, and showed the preferable example of each Example

  In the figure, reference numeral 1 denotes a seat, and the seat 1 includes a seat cushion 100 and a seat back 101. The seat cushion 100 incorporates a seat frame 2. The seat back 101 incorporates a seat back frame 3.

  The seat back frame 3 has an upper frame 5 at the top and free ends 5a and 5a of the upper frame 5 (in the case of a pair, hereinafter, one of the symbols is written and explained) Side frames 6 are provided. In addition, a lower frame and a reinforcing arm are provided at the bottom.

  The upper frame 5 may be constituted by an upper frame unit including a first panel 500 (front “inner side” panel) and a second panel 501 (back “outer side” panel). In this embodiment, the first panel 500 and the second panel 501 are fixed by a plurality of caulkings 7 or stoppers (not shown) inserted into the holes 500a and 501a, or although not shown, they are integrally formed. There can be fixation. With these fixations, a rectangular tube-shaped upper frame 5 is formed. In the case of caulking 7, although not shown, a pair of caulking punches are used. This caulking punch is set between the fitted first panel 500 and second panel 501 using the space 800 of the bracket 8 and the insertion hole 5c, and is processed by caulking 7 with the caulking punch and integrated. It is.

  As illustrated in FIG. 5B, the first and second panels 500 and 501 are substantially L-shaped, and include a bottom portion 500-1, a right side surface portion 500-2, and a top plate portion 500. -3, and is substantially U-shaped as a whole. Further, the second panel 501 has a substantially inverted L-shape, and is formed of a bottom 501-1, a left side 501-2, a top plate 501-3, and a receiving right side 501-4. Thus, it has a substantially inverted U shape. The overlapping of the bottom 500-1 and the bottom 501-1 of the first and second panels 500 and 501, the overlapping of the top plate 500-3 and the top plate 501-3, and the receiving right side surface 501-4 Mounting holes for inserting (inserting) the bracket 8 into both ends of the horizontal portions 500b and 501b as shown in FIG. 4 by being fixed by means such as caulking 7 together with the attachment of the right side surface portion 500-2. 10 is formed.

  The bracket 8 has a square shape having the clinch 8-1 and the joint 8-2 shown in FIGS. 3-1 and 3-2 and a cylindrical shape shown in FIG. 3-4. The bracket 8 includes right and left side surface portions 8a and 8b, the clinch 8-1 and the joint portion 8-2 as a rear surface portion 8c and a front surface portion 8d. Although the cylindrical shape is also an annular surface, it will be described as the right left side surface portion 8a, 8b, the rear surface portion 8c, or the front surface portion 8d as in the rectangular shape. In addition, the place which provides the insertion hole and protrusion which are mentioned later is not limited to the right side surface part 8a, 8b, For example, although not shown in figure, the rear surface part 8c and the junction part 8-2 can also exist.

  The preferred embodiments of the first to eleventh embodiments shown in FIGS. 5-1 to 15-3 will be described below.

  In the first embodiment shown in FIG. 5A, the caulking protrusion 20 is attached to the lower end of the right side surface portion 500-2 of the first panel 500 on the right side X (the other positional relationships are the same in the drawing). And formed toward the mounting hole 10. Further, on the left side Y, a pair of locking projections 21 is attached in the middle of the left side surface portion 501-2 of the second panel 501, and a caulking projection piece 20 provided on the upper end of the receiving right side surface portion 501-4 is attached. It forms toward the hole 10. Insertion holes 8-3 into which the projecting pieces 20 of the first panel 500 and the second panel 501 are inserted are formed in the right side surface portion 8a of the bracket 8 inserted into the mounting hole 10, respectively. Further, insertion holes 8-4 into which the protrusions 21 of the second panel 501 are inserted are formed in the left side surface portion 8 b of the bracket 8. In the figure, reference numeral 501-4 denotes a joint part bent toward the mounting hole 10 of the second panel 501, and is similar to the joint part 500-4 of the first panel 500.

  Therefore, when the bracket 8 is inserted into the mounting hole 10, the protruding pieces 20 of the first panel 500 and the second panel 501 are respectively inserted into the insertion holes 8-3 of the bracket 8 as described above. At the same time, the protrusions 21 of the second panel 501 are respectively inserted into the insertion holes 8-4, and the left side Y is fixed. On the other hand, a not-shown one punch (caulking jig) is inserted into the space 800 of the bracket 8, and another punch (caulking jig) is inserted through the insertion holes 5 c of the first panel 500 and the second panel 501, The protrusions 20 of the panel 500 and the second panel 501 and the peripheral portion of the insertion hole 8-3 of the bracket 8 are processed by caulking 7 to fix the right side X. That is, as shown in FIG. 5A, the bracket 8 is attached and fixed to the attachment hole 10 of the upper frame 5. In the first embodiment, the right side X is the caulking 7 fixing, and the left side Y is the fitting locking fixing.

  The first and second proposals of the second embodiment shown in FIG. 6 have the same basic structure as that of the first embodiment. The difference is that in one proposal, a U-shaped bend is formed at the upper end of the second panel 501. A piece 22 is formed, and a latch receiving piece 23 is formed at the upper end of the bracket 8. When the bracket 8 is inserted, the bent piece 22 is covered and locked with the latch receiving piece 23, Useful for positioning, bracket 8 strength improvement and play prevention. In the second embodiment, the right side X is the caulking 7 fixing, and the left side Y is the fitting locking / cover locking fixing. In this example as well, the first and second panels 500 and 501 have pseudo-elastic pieces 25-1 formed by bending (described later). Further, in the two plans of the second embodiment shown in FIG. 6-1-1, the lower end of the bracket 8 is adopted by adopting the fitting lock and the plug lock on the left side Y of the second panel 501 and the bracket 8. The end portion is the same as the bottom portion 501-1 of the second panel 501, or has a protruding structure as shown in the figure. Although not shown, the same applies to the first panel 500 and the bottom 500-1. In this second plan, the first and second panels 501 and the bracket 8 are locked and / or the mounting strength of the bracket 8 and the headrest (not numbered) is improved, and the headrest support (not numbered). This is effective in preventing rattling and the like (the same applies to each embodiment).

  In one plan of the third embodiment shown in FIG. 7A, on the right side X, a pair of locking projections 21 is provided in the middle of the right side surface part 500-2 of the first panel 500. The pair of locking projections 21 are provided at the lower part of the left side surface portion 501-2 of the two panel 501, respectively. However, the curved elastic piece 25 toward the attachment hole 10 is formed on the left side surface portion 501-2. Further, insertion holes 8-4 into which the projections 21 of the first panel 500 and the second panel 501 are inserted are formed in the right left side surface portions 8a and 8b (in the right left side X and Y) of the bracket 8, respectively. . Note that, on the right side X, a connecting portion 500-4 extending toward the mounting hole 10 from the right side surface portion 500-2 of the first panel 500 (having a protrusion 21 below the right side surface portion 500-2 at the tip thereof. ), Which serves as an elastic body, supports the bracket 8 by pressing, and is effective for elastic support and noise prevention (the other ones are also the same). In the third embodiment, on the right side X, the same right side as the insertion lock provided by the insertion hole 29 provided in the mounting hole 10 of the second panel 501 described later and the insertion hole 8-4 of the bracket 8 is the same right side. In X, it is also possible to provide a fixed relationship by insertion locking by the insertion piece 26 provided in the attachment hole 10 of the first panel 500 and the insertion hole 8-4 of the bracket 8. Further, in the second plan of the third embodiment shown in FIG. 7-1-1, by adopting the fitting lock and the insertion lock on the left side Y of the second panel 501 and the bracket 8, The lower end is the same as the bottom 501-1 of the second panel 501, or has a structure that protrudes as shown. Although not shown, the same applies to the first panel 500 and the bottom 500-1. The effect is in accordance with the second embodiment described above. Furthermore, the fourth plan shown in Fig. 7-2-1 is based on the second plan. Further, in the third plan of the third embodiment shown in FIG. 7B, in the right side X and Y, the right side 500-2 of the first panel 500 or the left side 501-2 of the second panel 501, A U-shaped pseudo elastic piece 25-1 (substantially equivalent to an elastic piece) is provided, and the left and right side surfaces 8b and 8a of the bracket 8 are supported in a pseudo elastic manner. Others conform to the third embodiment described above.

  Therefore, when the bracket 8 is inserted into the mounting hole 10, as described above, the projections 21 and / or the insertion pieces 26 and 29 of the first panel 500 and the second panel 501 are connected to the bracket 8. The left side surface portion 8b of the bracket 8 is inserted into the insertion hole 8-4 while pressing the elastic piece 25 together with the insertion lock inserted into the insertion hole 8-4. In the third embodiment, the left and right sides X and Y are fitting lock / insertion lock fixing, and the left side Y is an elastic lock in which the elastic piece 25 is pressed against the left side surface portion 8b of the bracket 8 ( Fixed). In addition, elastic support can be achieved between the protrusion 21 and the insertion hole 8-4, and this elastic support is effective for noise prevention and the like (the other one is the same).

  In the plan of the fourth embodiment shown in FIG. 8, the basic structure is the same as that of the third embodiment. The difference is that the elastic piece 25 is provided with the protrusion 21 and the left side surface portion 8b of the bracket 8 is different. In this structure, the insertion hole 8-4 is provided. In the fourth embodiment, the right and left X and Y are fitting and fixing, and the left Y is the elastic locking (fixing) in which the elastic piece 5 is pressed against the left side surface portion 8 b of the bracket 8, and the protrusion 21. And fitting engagement with the insertion piece 8-4 on the left side surface portion 8b of the bracket 8, and the fitting engagement fixing (third embodiment). Further, in the second plan of the fourth embodiment shown in FIG. 8-1-1, by adopting the fitting lock and the plug lock on the left side Y of the second panel 501 and the bracket 8, The lower end is the same as the bottom 501-1 of the second panel 501, or has a structure that protrudes as shown. Although not shown, the same applies to the first panel 500 and the bottom 500-1. The effect is in accordance with the second embodiment described above.

  In the plan of the fifth embodiment shown in FIG. 9, the basic structure is the same as that of the fourth embodiment. The difference is that the right side X has a mounting hole from the right side surface portion 500-2 of the first panel 500. The sloped connecting portion 500-4 extending toward 10 (having a protrusion 21 on the lower side of the right side surface portion 500-2 at the tip thereof) has an outstanding role as an elastic body and reliably presses the bracket 8 In addition to supporting, it is elastically supported and is effective for noise prevention (rattle prevention) and the like (the same is true for other plans). Others are the same as those in the third and fourth embodiments. Further, in the second plan of the fifth embodiment shown in FIG. 9-1-1, by adopting the fitting lock and the insertion lock on the left side Y of the second panel 501 and the bracket 8, The lower end is the same as the bottom 501-1 of the second panel 501, or has a structure that protrudes as shown. Although not shown, the same applies to the first panel 500 and the bottom 500-1. The effect is in accordance with the second embodiment described above.

  In the plan of the sixth embodiment shown in FIG. 10, the basic structure is the same as that of the fifth embodiment, and the difference is that, on the right side X, the upper end of the right side surface portion 500-2 of the first panel 500 is placed vertically. The insertion piece 500-2a extending downward, the insertion piece 500-2a extending the upper end of the right side surface portion 500-2 of the first panel 500 vertically downward on the left side Y, and the second panel 501 The first and second panels 500 and 501 are intended to be reliably integrated using the holding relationship with the holding pieces 501-3a extending vertically downward from the top plate portion 501-3. . In addition, the first and second panels 500 and 501 are structured to prevent separation and noise. Others conform to the fifth embodiment described above. Further, in the second plan of the sixth embodiment shown in FIG. 10-1-1, by adopting the fitting lock and the insertion lock on the left side Y of the second panel 501 and the bracket 8, the bracket 8 The lower end is the same as the bottom 501-1 of the second panel 501, or has a structure that protrudes as shown. Although not shown, the same applies to the first panel 500 and the bottom 500-1. The effect is in accordance with the second embodiment described above.

  In one plan of the seventh embodiment shown in FIG. 11A, on the right side X, an insertion piece 500-2a in which the upper end of the right side surface portion 500-2 of the first panel 500 extends vertically downward, and the right side surface portion. The lower end of 500-2 extends toward the mounting hole 10 so as to incline in a two-stage manner (not limited) (same as the connecting portion 500-4), and the tip thereof is the insertion piece 26, It is set as the structure provided with the standing part 500-1a which extended the edge part of the bottom part 500-1 toward the perpendicular upper direction, and the insertion piece 27 of the front-end | tip part. Further, on the left side Y, the holding pieces 501-3a extending vertically downward from the top plate portion 501-3 of the second panel 501 and the left and right sides of the mounting hole 10 of the top plate portion 501-3 are It is set as the structure provided with the insertion pieces 28 and 29 provided toward the lower side of the internal direction. The second panel 501 is provided with an elastic piece 25. On the other hand, the left and right side surface portions 8b and 8a of the bracket are provided with insertion holes 8-4 at the upper and lower ends, respectively. When the first panel 500 and the second panel 501 are integrated, the holding relationship in the sixth embodiment is the same. Further, in the second plan of the seventh embodiment shown in FIG. 11-1-1, by adopting the fitting lock and the insertion lock on the left side Y of the second panel 501 and the bracket 8, the bracket 8 The lower end is the same as the bottom 501-1 of the second panel 501, or has a structure that protrudes as shown. Although not shown, the same applies to the first panel 500 and the bottom 500-1. The effect is in accordance with the second embodiment described above.

  Therefore, when the bracket 8 is inserted into the mounting hole 10, the right left side surface portions 8 a and 8 b of the bracket 8 press the insertion pieces 26 to 29 of the first panel 500 and the second panel 501. Thereafter, due to the relationship between the insertion pieces 26 to 29 and the insertion hole 8-4, the insertion pieces 26 to 29 can be restored and the insertion locking can be achieved. In this seventh embodiment, the right and left X and Y are inserted and locked, and the left Y is elastically locked (fixed) and fitted so that the elastic piece 25 is pressed against the left surface 8b of the bracket 8. It is locking fixation (fitting locking fixation of the 3rd example).

  In the other three plans of the seventh embodiment shown in FIG. 11-2, the right side X shown in the sixth embodiment, the right side portion 500-2 of the first panel 500, the insertion piece 500-2a, and the left side In Y, the structure of the caulking 7 is further added to the holding relationship between the holding plate 501-3a of the top panel portion 501-3 of the second panel 501, and the first and second panels 500, 501 are securely integrated. Is intended to be In addition, the hole which can set a crimping jig is provided in the right side surface part 8a of the bracket 8, and the right side surface part 500-2 of the 1st panel 500, respectively. Others conform to the seventh embodiment described above.

  In the eighth embodiment shown in FIG. 12A, the basic structure is the same as that of the seventh embodiment. The difference is that the left side Y has a mounting hole 10 in the top plate portion 501-3 of the second panel 501. Are provided with plugs 501-3b and 501-3c extending vertically downward. The insertion pieces 501-3b and 501-3c are provided with insertion holes 501-3bb and 501-3cc. Further, the left and right side surfaces 8b and 8a of the bracket 8 are opened by forming insertion pieces 8-5 and 8-5 and insertion pieces 8-5 and 8-5 facing outward. The insertion holes 8-4 and 8-4 are formed (the other one is the same). Further, in the second plan of the eighth embodiment shown in FIG. 12-1-1, by adopting the fitting lock and the plug lock on the left side Y of the second panel 501 and the bracket 8, the bracket 8 The lower end is the same as the bottom 501-1 of the second panel 501, or has a structure that protrudes as shown. Although not shown, the same applies to the first panel 500 and the bottom 500-1. The effect is in accordance with the second embodiment described above.

  Accordingly, when the bracket 8 is inserted into the mounting hole 10, the insertion pieces 26, 27, 501-3 b, 501-3 c of the first panel 500 and the second panel 501 are connected to the right left side surface portion 8 a of the bracket 8, 8b presses. Thereafter, due to the relationship between the insertion pieces 26, 27, 501-3b, 501-3c and the insertion holes 8-4, the insertion pieces 26, 27, 501-3b, 501-3c are restored and are inserted. Can be fixed. In the eighth embodiment, the insertion piece 8-5 of the bracket 8 and the insertion holes 501-3bb and 501-3cc are inserted and locked, and the left side Y is the elastic piece 25 and the bracket 8 is. Elastic locking (fixing) / fitting locking / fixing (fitting locking / fixing in the third example). Others conform to the seventh embodiment.

  Further, in the other three plans of the eighth embodiment shown in FIG. 12-2, the other seventh embodiment shown in FIG. 11-2 is applied.

  FIG. 13-1 is a ninth embodiment shown in FIG. 13A. One proposal of FIG. 13A is a mounting hole for inserting the pair of brackets 30 into the top plate portion 500-3 of the upper frame 5. 31 respectively. The mounting hole 31 having a large curved surface at the traveling front side and a small curved surface (compared to a large curved surface at the traveling front side) has a corner for supporting the bracket 30. A unit 32 (a bracket replacement unit) (supporting the bracket 30 so as to be detachable) is provided. The unit 32 in this example is composed of insertion bent piece portions 3200 and 3201 formed in the upper and lower openings 32a and 32b, and a cylindrical portion 3202 of the main body portion 32c. As shown in FIG. 13A, the support 33 is inserted into the mounting hole 31 and supported (fixed). The bent piece portions 3200 and 3201 protrude from the top plate portion 500-3 and the bottom portion 500-1. In addition, the second plan of the ninth embodiment in FIG. 13-1-1 is an example in which the top plate portions 3200a and 3201a of the bent piece portions 3200 and 3201 are changed, and the top plate portion 3200a is primary to the top plate portion 3201a. The (overlapping) structure is shown. The overlapping and integrating means of the two uses the above-described locking such as caulking, welding 25, and plugging (other embodiments can also be adopted). The third plan of the ninth embodiment of FIG. 13-1-2 shows a primary (stepped one-step overlap) structure of the top plate portion 3201a on the top plate portion 3200a. The difference from FIG. 13-1-1 is a structure in which the top plate portion 3201a of the second panel 5-1 is superposed on the step of the top plate portion 3200a of the first panel 500. Others conform to the above-mentioned proposal. Further, in the fourth plan of the ninth embodiment of FIG. 13-1-3, a tertiary (stepped two-stage overlapping) structure of the top plate portion 3201a is shown on the top plate portion 3200a. This overlap strength has a structure of one plan <two plans <three plans (the same applies to the other embodiments). Others are based on the above two plans.

  Further, the fifth plan of the ninth embodiment shown in FIG. 13-2 is a modified example of the above-mentioned one plan, and adopts a method in which an overlapping portion 500-5 is formed on the first panel 500 and fixed by welding 35. . Further, the sixth plan of the ninth embodiment shown in FIG. 13C is a structure in which the elastic piece 25 is provided on the cylindrical portion 3202 of the first panel 500 (second panel 501). Although not shown, a combination of the overlapping portion 3203 and the elastic piece 25 is also possible. Further, the support 33 includes a notched shoulder 3300 that is locked to the bent piece portion 3200 and a retaining piece 3301 (claw piece) that is locked to the base end of the bent piece portion 3201. In addition, a hole 36 for a retaining piece 3301 pressing jig of the support 33 is provided at an appropriate position of the mounting hole 31. Although the free ends of the bent piece portions 3200 and 3201 face the vertical direction, the seventh plan of the ninth embodiment shown in FIG. 13-4 is the inner bent portion of the bent piece portions 3200 and 3201. A structure having an elastic function, which is confined inward, or a structure in which the bent piece portions 3200 and 3201 are narrow in width and the like can be easily inserted (other embodiments can also be adopted).

  Accordingly, when the support 33 is inserted into the mounting hole 31, the retaining piece 3301 is compressed and advances through the cylindrical portion 3202, and returns when the retaining piece 3301 passes through the mounting hole 31. The notched shoulder 3300 is elastically supported on the free end portion of the bent piece 3200 forming the upper opening 32a (prevents play). And noise prevention etc.) and the support 33 can be positioned at the bent part. The thin cylindrical body of the support 33 is elastically supported by the free end portion of the bent piece portion 3200 forming the upper opening 32b, and the notched shoulder portion 3300 of the support 33 is locked to the bent portion. The support 33 can be positioned.

  14-1 to FIG. 14-4, the plan of FIG. 14 is that the top plate portion 500-3 of the upper frame 5 is provided with a mounting hole 31 into which the pair of brackets 30 are inserted. Have each. A unit 32 is provided in the mounting hole 31. The unit 32 in this example is composed of insertion bent piece portions 3200 and 3201 formed in the upper and lower openings 32a and 32b, and a cylindrical portion 3202 of the main body portion 32c. The bent piece portion 3200 is formed by the first panel 500, and the bent piece portion 3201 is formed by the second panel 501. The lower free end 3205 on the right side X of the first panel 500 is inserted into and supported by the bent piece 3201 and is folded inside the upper free end 3204 on the left side Y of the second panel 501 (inward direction of the mounting hole 10). As a configuration in which the bent portion is inserted into and supported by the bent piece portion 3200 (insertion locking), elasticity is imparted to the bent piece portions 3200 and 3201, and the strength of the upper and lower free ends is supported. Further, the upper and lower free ends 3204 and 3205 are prevented from coming off. The upper and lower free ends 3204 and 3205 and the bent pieces 3200 and 3201 are fixed by welding 35. Further, in the two proposals of the tenth embodiment shown in FIG. 14-2, a stepped portion is formed on the top plate portion 500-3 of the first panel 500, and the second panel 501 is formed on the stepped portion. This is a structure in which the free ends of the top plate portion 501-3 are overlapped (according to the overlapping portion 500-5), and is fixed by welding 35. Others conform to the ninth embodiment described above. Further, the insertion method and effects of the support 33 are also in accordance with the ninth embodiment.

  14-3 shows a configuration in which the upper left free end 3204 on the left side Y of the second panel 501 is inserted and supported by the bent piece 3200, and the upper free end 3204 of the second panel 501 is changed. Straight structure. 14-4 is a configuration obtained by modifying FIG. 14-3, and has a structure in which the upper left free end 3204 of the left side Y of the second panel 501 is supported by the bent piece portion 3200. is there. Others in FIGS. 14-1 to 14-4 are based on the above-described examples. In the tenth embodiment, the first and second panels 500 and 501 have been described as having a two-sheet structure. However, other number structures are possible, for example, one to a plurality of panel structures can be employed (others). Can also be adopted).

  The eleventh embodiment shown in FIGS. 15-1 to 15-3 is a modified example of the ninth embodiment described above, and the bent portions 3200 and 3201 are formed in a substantially curved shape to provide elasticity. It is conceivable to prevent backlash and the like, and to improve the strength of the headrest (no reference), the support 33, the upper frame 5 and the like (these features are also possible in other embodiments).

  16-1 to 16-1-2 show one proposal and two proposals for the combination of the bent piece side 3200b of the first panel 500 and the top plate portion 3201a. According to the first to third plans of the ninth embodiment. In addition, the place which provides the 1st-3rd plan of 10th Example can be in any of the 1st panel 500 and the 2nd panel 501 (the same is applied to other examples). However, the bent piece side 3200b is enlarged as shown in the figure (for example, approximately twice as large as the bent piece portion 3200 of the eleventh embodiment) to improve the strength and to cope with the load of the headrest and the support 33. To do.

  17-1 to 17-1-3, the first to third plans of the thirteenth embodiment are examples in which the first panel 500 and the mounting hole 10 free ends 10a and 10b of the second panel 501 are connected. Is shown. 17A, the upper end 10a of the free end (mounting hole 10) of the first panel 500 and the short free end (mounting hole 10b) of the second panel 501 are integrated (combined). ) Structure, and the first proposal is an example showing a simple overlap portion locking. For the connection (fixation) of the overlapping portions, the above-described locking such as caulking, welding 35, and insertion is used. Moreover, the 2nd plan shown to FIGS. 17-1-1 is an example which showed the overlap part latching. Furthermore, the third plan shown in FIG. 17-1-2 is based on the second plan.

  Each structure described above is a preferred example of the present invention. Therefore, the present invention is not limited to the above-described embodiments, and a structure in which a part of the configuration is changed within the scope of the invention, a structure that can achieve the same features and effects, and the like are included in the scope of the present invention. It is.

1 sheet
100 seat cushion
101 seat back
2 Seat frame
3 Seat back frame
5 Upper frame
5a Free end
5b Free end
5c insertion hole
500 First panel
500a hole
500b Horizontal part
500-1 Bottom
500-1a Standing part
500-2 Right side
500-2a Insertion piece
500-3 Top plate
500-4 joint
500-5 Overlap
501 2nd panel
501a hole
501b Horizontal part
501-1 Bottom
501-2 Left side
501-3 Top plate
501-3a Holding piece
501-3b Insertion piece
501-3bb insertion hole
501-3c Insertion piece
501-3cc insertion hole
501-4 Connecting part
501-5 Overlap
6 Side frame
7 Caulking
8 Bracket
8a Right side
8b Left side
8c Rear part
8d Front part
800 spaces
8-1 Clinch
8-2 Joint
8-3 Insertion hole
8-4 Insertion hole
10 Mounting hole
10a Free end
10b Free end
20 protrusion
21 Protrusions
22 folded pieces
23 Locking piece
25 Elastic piece
25-1 Pseudo elastic piece
26 Insertion piece
27 Insert
28 Inserts
29 Insertion piece
31 Mounting hole
32 units
32a Upper opening
32b Lower opening
32c body
3200 Bent piece
3200a Top plate
3200b One side bent
3201 Bent piece
3201a Top plate
3201b Folding one side
3202 Tube section
3203 Overlap
3204 Upper free end
3205 Lower free end
33 Support
3300 Notched shoulder
3301 Stopper
3302 Elastic hole
35 Welding
36 holes
X right
Y left side

Claims (9)

A bracket for supporting the headrest support is inserted into the mounting hole for the headrest support in the upper frame of the seat from above, and at least two support means by fitting, caulking, or locking are provided in this bracket and this mounting hole. In each of the upper frames of the seat back that are provided and use both support means to support the bracket to the upper frame,
An upper frame of a seat back configured such that an elastic piece curved inward is provided on one side surface portion of the upper frame, and the elastic piece makes contact with one side surface portion of the bracket. A bracket for supporting the headrest support and a unit for supporting the bracket are provided in a rectangular mounting hole in the top plate portion of the upper frame of the seat so that the headrest support can be inserted into the unit and the mounting At least two or more fitting, caulking, or locking support means are provided in the bracket and the mounting hole, respectively, and the bracket is attached to the bracket using the support means. In the upper frame of the seat back that is supported by the upper frame,
An upper frame of a seat back configured such that an elastic piece curved inward is provided on one side surface portion of the upper frame, and the elastic piece makes contact with one side surface portion of the bracket. The upper frame of the seat back according to claim 1 or claim 2,
An upper frame of a seat back in which the upper frame is configured by first and second panels, and the first and second panels can be combined. The upper frame of the seat back according to claim 3,
An upper frame of a seat back in which the upper frame is composed of first and second panels, and elastic means is provided on one or both of the first and second panels. The upper frame of the seat back according to claim 4,
An upper frame of a seat back configured to provide the supporting means on the elastic means. The upper frame of the seat back according to claim 3,
An upper frame of a seat back in which the upper frame is constituted by first and second panels, and the first and second panels can be assembled by means of fitting, caulking, or locking. The upper frame of the seat back according to claim 6,
An upper frame of a seat back in which the uniting means is provided at an overlapping portion above the first and second panels. The upper frame of the seat back according to any one of claims 3, 4, or 6 ,
An upper frame of a seat back in which one portion of the combined first and second panels is performed by support means provided on the bracket and support means provided on the first and second panels. The upper frame of the seat back according to claim 2,
The bracket or the unit is a seat back upper frame configured to have a rectangular cylindrical shape.