JP2019119282A - Upper frame - Google Patents

Abstract

To solve problems for prior bracket-less products (structure which eliminates a bracket as a transaction object as one component), there is a proposal of a pseudo structure, however, only a material of an upper frame is changed, and in the products, a bracket is inserted into a fixation hole on the upper frame, so that, the products are not regarded as bracket less products.SOLUTION: An upper frame extended to side frames of a vehicle seat back is configured so that, a pair of support reception cylindrical parts comprising a pair of insertion holes for insertion of a headrest support, are formed on processing parts, support reception cylindrical parts and the insertion holes are used for supporting the headrest support, and if necessary, a cylindrical body is attached to the upper frame, and the support reception cylindrical part, the insertion holes, and the cylindrical body are used for supporting the headrest support. According to the structure, the upper frame can eliminate a bracket, thereby achieving a bracket-less structure. Therefore, the number of components can be reduced, a production work can be facilitated, a production can be made quick, and economical efficiency is improved.SELECTED DRAWING: Figure 1-1

Description

  The present invention relates to, for example, an upper frame of a metal pipe, which is bracket-less (eliminates a bracket for gripping a headrest support and achieves weight reduction). In addition to metal pipes, it is possible to include resin or other constituent materials.

  The invention and / or configuration disclosed in the literature regarding the bracketless (the holding structure of the headrest support without the bracket) and the upper frame for weight reduction intended by the present invention are respectively disclosed as follows. There is.

  As for the seat back frame made of resin, WO2013-021484 can be mentioned. In the present invention, sheet-like resin materials into which reinforcing fiber materials are inserted are laminated to constitute a side frame and an upper frame. In addition, integrally forming or assembling a bracket, a flange portion or the like is also disclosed.

  Moreover, Unexamined-Japanese-Patent No. 2017-165258 is mentioned regarding the metal seat back frame which has the commonality of material. In the present invention, the upper frame portion (301) is formed of a pipe, and the horizontal portion (301A) of the upper frame portion (301) is provided with an attachment portion (306) for attaching a bracket (no reference numeral) of the headrest (4). Structure.

WO 2013-021484 JP, 2017-165258, A

  In the above-mentioned document (1), it is devised to cope with the change of the material called resin and the change, and to achieve the conventional function, strength, performance and the like. However, it is a range of improvement on one side and does not satisfy the current demand. Further, in the reference (2), as judged from FIG. 2, the bracket is provided on a vertical surface portion crushed in the lateral direction of the pipe (forward and backward directions of the vehicle). Therefore, it is considered not to be bracketless.

  At present, what has been requested is improvement of material changes, securing of further superiority based on it, weight reduction, reduction of the number of parts, simplification of the manufacturing process, facilitation of parts management, etc. Conceivable.

  Also, there is a bracketless proposed by the present applicant, but as in the present invention, the support receiving hole (the configuration of the processing portion is not limited and one preferred example of the processing portion is not limited) of the metal pipe For example, it is completely different from the type in which the burring is provided by pressing the upper and lower sides.

  Therefore, the present invention achieves the bracket-less holding structure of the headrest support with an upper frame made of resin, secures superiority of metal (can be made of composite metal or resin), and reduces weight In addition, it is intended to reduce the number of parts, simplify the manufacturing process, or facilitate the management of parts. As the means, claims 1-11 are proposed.

According to a first aspect of the present invention, there is provided an upper frame of a cylinder seat back of a vehicle.
In the upper frame, a headrest support is attached, and a processed part of a recess is formed to support the headrest of the headrest support,
The processing portion includes first and second insertion holes for receiving in the vertical direction a headrest support having a head portion, a neck portion, and a main body portion, and an inner peripheral surface flush with the inner surfaces of the first and second insertion holes. First and second support receptacles,
Accept the upper part of the main body by the first and second support receptacles,
Upper frame.

A second aspect of the present invention is the cylinder upper frame of a vehicle seat back, wherein
In the upper frame, a headrest support is attached, and a processed part of a recess is formed to support the headrest of the headrest support,
The processing section includes first and second insertion holes for receiving in the vertical direction a headrest support having a head, a neck and a main body, and first and second support receivers provided in the first and second insertion holes. Equipped with
The upper portion of the main body is received by the first support receiving barrel, and the elastic piece of the main body is received by the second support receiving tubular portion,
Upper frame.

  Thus, in claims 1 and 2, the upper frame has a processing portion for head support of the headrest support, the processing portion has first and second insertion holes for receiving the headrest support in the vertical direction, and 1 · second support receiving cylinder part, adopting a configuration in which the upper part of the main body part is received by the first support receiving cylinder part, and the elastic piece of the main body part is received by the second support receiving cylinder part For example, it can contribute to weight reduction, improvement of fuel efficiency, reduction of CO 2 and the like. In addition, with the bracketless structure, the number of parts can be reduced, the manufacturing process can be simplified, or the parts management can be facilitated.

According to a third aspect of the present invention, there is provided an upper frame of a cylinder seat back of a vehicle.
In the upper frame, a headrest support is attached, and a processed part of a recess is formed to support the headrest of the headrest support,
The processing section includes first and second insertion holes for receiving in the vertical direction a headrest support having a head, a neck and a main body, and first and second support receivers provided in the first and second insertion holes. Equipped with
Receiving the upper portion of the main body portion by the first support receiving cylinder portion and / or receiving the elastic piece of the main body portion by the second support receiving cylinder portion;
The processed portion is an upper frame configured to be in contact with a first leaf spring provided on the neck and / or a second leaf spring.

  By this, in claim 3, according to the configuration of claim 1, a configuration in which the first leaf spring and / or the second leaf spring provided on the neck portion is in contact with the processed portion is adopted. There is a feature that can be hesitated.

A fourth aspect of the present invention relates to a cylinder upper frame of a vehicle seat back, wherein
In the upper frame, a headrest support is attached, and a processed part of a recess is formed to support the headrest of the headrest support,
The processing portion includes first and second insertion holes for receiving in the vertical direction a headrest support having a head portion, a neck portion, and a main body portion, and first and second support receivers provided in the first and second insertion holes. Equipped with a cylinder,
Receiving the upper portion of the main body portion by the first support receiving cylinder portion and / or receiving the elastic piece of the main body portion by the second support receiving cylinder portion;
The processing portion is an upper frame configured to be in contact with the lower end of the neck portion.

  By this, in Claim 4, the structure which the lower end of a neck contacts is employ | adopted for the process part in the structure of Claim 1, and it has the characteristic which can be compared with Claim 1.

  A fifth aspect of the present invention is the upper frame in which the first and second support receiving cylinder parts are formed at least one of them in the vertical direction with respect to the horizontal direction of the arch part of the upper frame. .

  Accordingly, in the fifth aspect, along with the same features as the first aspect, the vertical state of the headrest support can be reliably ensured by erecting the first and second support receiving cylindrical portions in the vertical direction. .

  A sixth aspect of the present invention is the upper frame, wherein the contact of the first leaf spring is the attachment in the horizontal direction of the arch portion of the upper frame and / or the contact of the second leaf spring is the coating in the orthogonal direction of the arch portion. .

  Thus, according to the sixth aspect, by providing the first and second leaf springs in combination with the same features as the third aspect, the vertical state of the headrest support can be reliably ensured.

  A seventh aspect of the present invention is the upper frame in which the second support receiving cylindrical portion is provided in the vertical direction, and the second support receiving cylindrical portion and the cylindrical body surrounding the main body are provided.

  Thus, according to the seventh aspect of the present invention, the vertical state of the headrest support can be assured by providing the cylindrical body surrounding the second support receiving cylindrical portion and the main body portion together with the same features as the first to fourth aspects. Can be secured.

  The eighth aspect of the present invention is the upper frame configured such that the overhanging portion provided on the main body cylindrical portion of the cylindrical body is inserted into the lower side of the arch portion of the upper frame, or supported.

  Thus, according to the eighth aspect, in combination with the same feature as the seventh aspect, the overhanging portion provided on the main body cylindrical portion of the cylindrical body is inserted into the lower side of the arch portion to support or be attached thereto. It is possible to ensure the vertical state of the support and eliminate the play of the headrest support.

  According to a ninth aspect of the present invention, the fork-shaped extended portion is formed in the main body cylindrical portion, and the main portion of the extended portion covers the processing portion and is locked to the lower end of the neck portion or the main portion of the neck portion Upper frame.

  In a tenth aspect of the present invention, the bifurcated extension portion is an upper frame constituted by a pair of holding pieces for holding the processing portion, and a pair of key pieces engaged with the lower end of the neck or the body of the neck. is there.

  Accordingly, according to the ninth and tenth aspects, in combination with the same features as the eighth and ninth aspects, the main body cylindrical portion is provided with the bifurcated extending portion, thereby providing the headrest support and / or the cylindrical body. It is possible to ensure the vertical position and at least eliminate the play of the headrest support.

  According to an eleventh aspect of the present invention, in the main body cylindrical portion of the cylindrical body, a plug-in cylindrical portion internally contacted with the first support receiving cylindrical portion, a key piece engaged with a horizontal surface of the processing portion, and a second support receiving cylindrical portion. The upper frame is configured to include an annular groove for holding the first and second hook pieces that are engaged with the lower surface of the arch portion of the upper frame.

  Thus, according to the eleventh aspect, in combination with the same features as the seventh to tenth aspects, the main body cylindrical portion is formed with the insertion cylindrical portion, the key piece, the first scale piece, and the second scale piece. It is possible to ensure the vertical position of the headrest support and / or the cylinder, and at least eliminate the play of the headrest support.

Scaled exploded view of partially missing seatback and headrest related equipment as a whole It is another example which showed the principal part of a seat back and a headrest related apparatus, Comprising: The scale exploded view of the partial defect It is another example which showed the principal part of a seat back and a headrest related apparatus, Comprising: The scale exploded view of the partial defect The main part of the upper frame is shown, and the enlarged overhead view viewed from one side The main part of the upper frame is shown, and the support hole is not provided on the lower surface viewed from one side (first plan to third plan, fifth plan, etc.) enlarged elevation view An enlarged bird's eye view showing the main part of the upper frame and viewed from the other side The principal part of the upper frame is shown, and the support hole was provided in the lower surface visually recognized from the other side. The main part of the upper frame is shown, and the enlarged overhead view viewed from one side An enlarged bird's eye view showing the main part of the upper frame and viewed from the other side The main part of the upper frame is shown, and the enlarged overhead view viewed from one side An enlarged bird's eye view showing the main part of the upper frame and viewed from the other side The enlarged main view which showed the principal part of the upper frame and was visually recognized from one side which showed the other example of the support receptacle cylinder part The enlarged main view which showed the principal part of the upper frame and was visually recognized from the other side which showed the other example of the support receptacle cylinder part An enlarged overhead view viewed from one side showing the main part of the upper frame and showing another example of the support receiving tube portion An enlarged overhead view seen from the other side showing the main part of the upper frame and showing another example of the support receiving tube portion 3-1 to 3-10 show a combination of an upper frame and a headrest support according to a first solution, and FIG. 3-1 is a plan view thereof. Front view of Figure 3-1 End view of the head of the headrest support shown in Figure 3-1 Sectional view of the essential part of E-E in Figure 3-1 It is another example of FIGS. 3-4, and is a cross-sectional view in which the first leaf spring is omitted (the simplification or simplification of such a structure is the same as each proposal). It is another example of FIGS. 3-5, and is sectional drawing which abbreviate | omitted the elastic piece. Reference cross-sectional view of the main part of E-E in Figure 3-1 Sectional view of the main part of FF in Figure 3-1 The perspective view seen from one side of the 1st plan The perspective view seen from the other of the 1st plan 4-1 to 4-10 show a combination of an upper frame and a headrest support according to a second alternative, and FIG. 4-1 is a plan view thereof. Front view of Figure 4-1 Sectional view of the main part of G-G in Figure 4-1 Reference cross-sectional view of the main part of I-I in Figure 4-3 Reference cross-sectional view of the other main parts in J-J in Figure 4-3 Sectional drawing which showed the state which the holding piece of FIGS. 4-1 fitted, spreading and following the curved-surface shape of a process part Sectional view of the main part of J-J in Figure 4-3 Sectional view of the main part of HH in Figure 4-1 The perspective view seen from one side of the 2nd plan The perspective view seen from the other of the 2nd plan Another example of FIG. 4-8, is a third proposal, and is a cross-sectional view of the main part in which the extension portion is extended upward and the tip extension portion is provided. 5-1 to 5-10 are combinations of an upper frame and a headrest support according to a fourth alternative, and FIG. 5-1 is a plan view thereof. Front view of Figure 5-1 End view of head of headrest support Sectional view of main part of KK in FIG. 5-1 Reference cross-sectional view of the main part of KK in Figure 5-1 Sectional view of the main part of M-M in FIG. 5-4 Sectional view of the main part of L-L in FIG. 5-1 Reference cross section of the main part of KK in Figure 5-1 (without leaf spring) The perspective view seen from one side of the 4th plan The perspective view seen from the other of the 4th plan Sectional drawing which showed the principal part of the combination of an upper frame and a headrest support by the 5th plan Sectional drawing which abbreviate | omitted the 1st leaf spring of the 5th plan

  Hereinafter, preferable examples (first to fifth plans) of the present invention will be described.

  The first to fifth ideas will be described as examples of the common structure shown in FIGS. 1 to 2-12 and preferred embodiments of the present invention.

  The vehicle seat device A shown in FIG. 1 and FIGS. 2-1 to 2-4 includes the seat back frame B as a framework for seat backrest and the headrest related device C disposed on the seat back frame B as a whole. The seat back frame B has various shapes such as a plate shape, a channel shape, or a rectangular tube shape, and the cylindrical shape or the rectangular tube shape. And the upper frame 2 of the cylindrical body. Further, the headrest related device C is configured of a headrest support 3 (referred to as a support 3), a headrest 5 and a headrest stay 6 (which is a stay 6). As described later, the structure of the support 3 is not specified. D in the figure indicates a seat back.

  The upper frame 2 is provided with a flat surface portion 201 which is lower by one step on the upper side 2a of the cylinder in an attempt to attach the support 3 (easy and simplified), maintain the vertical, or shorten the dimension, save materials and the like. The processing unit 200 is provided. The portions other than the processed portion 200, that is, the lower side 2b and the left and right sides 2c and 2d of the cylinder are the original curved surface shape 202 (original cylinder shape) of the cylinder. Then, in the center of the surface portion 201, the insertion holes 203a and 203b for support 3 insertion (in the common example, in principle, one code is written except for the first, etc. are added. The same applies hereinafter) . The insertion holes 203a and the like have a first support receiving cylindrical portion 204a and a second support receiving cylindrical portion 204b (both are referred to as a support receiving cylindrical portion) which are respectively directed in the vertical direction. Although this support receiving cylinder part 204a etc. make an entire periphery, such as the insertion hole 203a, in principle, it is not limited. In addition, the first and second support receiving cylindrical portion 204a and the like provided with an inner peripheral surface flush with the inner surfaces of the first and second insertion holes 203a and the like, and the smooth and / or easy insertion of the support 3; Ensure stability and prevent rattling. The support holes (fixing holes) 205a and 205b shown in FIGS. 2-4 will be described in detail in a fourth example such as FIGS. 5-4 and 5-5. Further, the concave streaks 206 and 206 (referred to as 206) shown in FIGS. 2-5 and 2-6 are structures formed long in the front and rear sides QZ in the vicinity of the insertion holes 203a of the surface portion 201 and toward the left and right sides XY. This will be described in detail in the second and third plans such as FIGS. Holes 206a and 206a (referred to as 206a) shown in FIGS. 2-7 and 2-8 are structures formed on the front and rear sides QZ in the vicinity of the insertion hole 203a of the surface portion 201, and FIGS. This will be described in detail in the second and third plans such as -11. At least the upper frame 2 is made of metal, for example, transfer manufacturing. In addition, welding is achieved, process control and / or simplification of manufacturing, cost reduction, management simplification, failure reduction, etc. are achieved.

  The basic structure of the support 3 is a head 300 and a neck 301 provided with a stepped portion at a narrow portion connected to the lower side of the head 300, and a narrow diameter connected to the lower side of the neck 301. It consists of a rectangular main body 302, and on the left and right sides of the main body 302 (in the width direction of the seat back frame B), the elastic pieces 303, 303 provided in pairs at the top and the same side under the elastic piece 303. It is comprised by the latching claw piece 304,304 provided in (there is another side) (it is an applicant's product). In the figure, reference numeral 305 denotes a hole for inserting the stay 6 penetrating in the vertical direction of the support 3. Further, the head 300 has an opening 306 into which the operation button 7 is inserted. In addition, the structure (shape) of the support 3 made the structure shown in FIG. 1-1, and the structure shown in FIG. 1-2 an example. However, the present invention is not limited to these examples and is free. For example, in the illustrated example, the structure including the elastic piece 303 and / or the locking claw 304 and the structure not provided with the simple structure are illustrated, but as described above, they are free. , Not limited. For example, a metal press is provided with burring at the top and bottom (a support receiving cylinder that is an alternative to a bracket “described later”), a support 3 of a simple shape is inserted into this support receiving cylinder, and a conventional bracketed structure is provided There may also be an embodiment that guarantees equal or better quality and performance. And although mentioned above, it is not limited to metal.

  Hereinafter, preferred embodiments will be described in order.

  In FIGS. 3-1 to 3-10, which show the first plan, the unique structure is the same as the left and right sides X and Y (the same as the left and right sides 2c and 2d of the upper frame 2) in the neck portion 301 of the headrest support 3 , The same as the opening 306 in the insertion direction of the operation button 7), and the second leaf springs 301c and 301d are formed on the front and rear sides Q and Z (the front and rear direction of the vehicle) of the first leaf spring 301a and 301b, respectively. . It mounts to the upper frame 2 using the flexibility by a shape and / or thickness etc. including the flexibility with which the headrest support 3 is equipped. For example, the first leaf springs 301a and 301b of the headrest support 3 are attached to the surface portions 201 (201) on the left and right sides X and Y of the insertion hole 203a (see FIG. 3-4). The second leaf springs 301c and 301d are held in the curved surface shapes 202 (202) on the front and rear sides Q and Z of the insertion hole 203a (see FIGS. 3-6). The attachment of the first leaf springs 301a and 301b and the holding of the second leaf springs 301c and 301d are effective for supporting the headrest support 3 in the vertical direction and for strongly connecting the upper frame 2 (preventing rattling) Is valid). The main body portion 302 is fitted and supported by the first support receiving cylindrical portion 204a, and the elastic pieces 303, 303 are elastically held by the second support receiving cylindrical portion 204b. By the fitting support and the elastic holding, it is possible to support the main body portion 302 in the vertical direction, to prevent rattling with the upper frame 2, to secure strength, and the like. The elastic piece 303 may have a structure (for example, FIG. 3-6, FIG. 6-1, etc.) which is not provided. Further, in this example, the support holes 205a and 205b shown in the fourth proposal are not provided (the same applies hereinafter). The following also applies to the second proposal. In this example, the concaves 206 and the holes 206a shown in the second and third plans are not provided (the same applies hereinafter). Hereinafter, the fourth and fifth plans are the same. The support holes 205a and 205b, the concaves 206 and the holes 206a will be individually described in each case.

  And FIGS. 3-5 are other examples of FIGS. 3-4, and 1st leaf spring 301a, 301b is abbreviate | omitted, simplification of a structure, low cost, and / or weight reduction, fuel consumption improvement, etc. are carried out. (Simplification of such a structure is the same for each proposal). In addition, FIGS. 3-6 are cross-sectional views in which the elastic piece 303 is omitted, which is another example of FIGS. 3-4, and the effect of the above-described example can be obtained The same).

  In FIGS. 4-1 to 4-11, which show the second and third alternatives, the unique structure is the same shape as the main body 302, which is larger than the main body 302, which is placed on the upper portion of the main body 302 of the headrest support 3. A cylindrical portion 1000 and a curved shape 202 (202) of a pair of upper frames 2 formed to extend on the main body cylindrical portion 1000 are held in a bifurcated shape (front and back side QZ) pair of holding pieces 1001 For example, a bifurcated pair that is formed on the tip of (1001) and this pair of holding pieces 1001 (abbreviated in the example of the pair), for example, is locked to the surface portion 201 (201) and attached to the neck portion 301. A substantially bowl-shaped cylindrical body 10 composed of a key piece 1002 (1002) is adopted. In addition, on the left and right sides X and Y of the main body cylindrical portion 1000, first scale pieces 1003a (1003a) are formed. In this cylindrical body 10, the first hook piece 1003b (1003b) is engaged with the respective curved surface shapes 202 (202) on the front and rear sides Q and Z of the insertion hole 203a and / or the neck portion 301 etc. And / or holding of the holding piece 1001 is performed (see FIG. 4-2, FIG. 4-5, FIG. 4-7, etc.). If necessary, the second support receiving cylindrical portion 204b and / or the first hook piece 1003a is attached (contacted) to the lower side 2b (as shown in FIG. 4-3, in combination with the locking) , Become a form of support). For example, the cylindrical body 10 is formed by the flexibility of resin, the insertion of the main cylindrical portion 1000 into the second support receiving cylindrical portion 204b, and the expansion and / or return following the curved surface shape of the holding piece 1001. , The holding lock, and the expansion and / or return of the key piece 1002, and / or the upper part through the lock on the neck portion 301 and / or the attachment to the lower side 2b of the first hook piece 1003a. It is supported by the frame 2.

  Thereafter, the headrest support 3 is inserted into and supported by the cylindrical body 10 (main cylindrical portion 1000) supported by the upper frame 2. It faces from the insertion hole 203a of the upper frame 2 to the insertion hole 203b facing it, and is then inserted toward the through hole 10a of the cylindrical body 10, and the state where insertion is completed is shown in FIG. 4-4, FIG. It is shown. In the insertion shown in FIGS. 4-6, although a pressure is applied to the cylinder 10, the inserted state is secured through the locking, the holding lock, and the like. In addition, protrusions 208 and 208 (referred to as 208) provided at both free ends of the holding piece 1001 are engaged with the concave line 206, so that the holding and holding of the holding piece 1001 can be reliably prevented. It is effective for preventing backlash and so on. For example, one or a plurality of holes 206a may be provided instead of the concave streaks 206, and the convex streaks 208 may be locked.

  Then, when the locking claws 304 and 304 of the headrest support 3 reach the lower end 10 b of the cylindrical body 10, the lower end 10 b of the cylindrical body 10 is accommodated in the locking claw 304, and When the one collar piece 1003a is fitted to the lower side 2b of the upper frame 2, the headrest support 3 has its own weight and / or the protrusion 208 to the cylinder 10 or the recess 206 or the hole 206a. The upper frame 2 is supported (fixed) through the locking of the At the same time, the support of the upper frame 2 and / or the headrest support 3 may be supported by the holding piece 1001 of the cylindrical body 10 and the key piece 1002. As described above, the cylindrical body 10 is supported between the upper frame 2 and the main body portion 302. Others conform to the above-mentioned first plan. The third proposal is a structure in which the key piece 1002 extends over the neck portion 301. The key piece 1002 is securely engaged with the neck portion 301. Others conform to the second and first plans.

  In FIGS. 5-1 to 5-10, which show the fourth plan, the unique structure forms the overhanging portion 1004 on the first hook piece 1003a of the third plan, and the upper side 1004- of this overhanging portion 1004. 1 to form a claw piece 1004a. It is the structure of the cylinder 10 which made the fall hat shape whole as a whole. That is, the holding piece 1001 of the third proposal and the key piece 1002 are omitted. The claws 1004a are inserted into and supported by support holes 205a and 205b opened on the lower side 2b. Others conform to the above-mentioned third plan and the first plan. As shown in the drawing, the groove fitting 1005 is ideal for the cut of the claw piece 1004a and the support holes 205a and 205b.

  In FIGS. 6-1 and 6-2 showing the fifth plan, the unique structure is a modification of the second plan to the fourth plan, and the main body cylindrical portion 1000 of the cylindrical body 10 has the lower side described above. The first scale piece 1003a and the second scale piece 1003b. The lower first scissor piece 1003a is located on the left and right sides X and Y in the Y direction of the upper frame 2, and the second scissor piece 1003b is located on the front and rear sides Q of the upper frame 2 and the lower side 2b in the Z direction. The key piece 1002 is also attached on the surface portion 201. That is, the upper and lower sides of the processing unit 200 are supported by the first and second scale pieces 1003 a, 1003 b, and the key piece 1002 so as to be attached to the processing unit 200 of the upper frame 2. And in order to make it easy to insert the cylinder 10 in the 1st support receptacle cylinder part 204a and the 2nd support receptacle cylinder part 204b, the length in the horizontal direction is set so that the 1st scale piece 1003a> = the 2nd scale piece 1003b and It is an example. Further, in this example, the main portion of the main body cylindrical portion 1000 (insertion cylindrical portion) provided with the air vent hole is located in the cavity portion 207 of the upper frame 2. The second support receiving cylindrical portion 204b is chucked in an annular space formed by the first scale piece 1003a, the second scale piece 1003b, and the outer peripheral surface of the main body cylindrical portion 1000. In addition, the key piece 1002 is covered by the first leaf springs 301a and 301b. The cylindrical body 10 is attached to the processing portion 200 through the chucking and the fitting. Others conform to the above-mentioned first to fourth plans. The cross-sectional view showing the main part of the combination of the other upper frame 2 and the headrest support 3 shown in FIG. 6-2 is the first in FIGS. 3-5, 3-6, etc. of the first proposal described above. This is the same as the example in which the leaf spring 301b is omitted. The main cylindrical portion 1000 has an annular groove 1006, and the second support receiving cylindrical portion 204 b is inserted and supported in the annular groove 1006.

  Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the specific embodiments, and the present invention includes the invention described in the claims and the equivalents thereof. included.

DESCRIPTION OF SYMBOLS 1 side frame 2 upper frame 2a upper side 2b lower side 2c left side 2d right side 200 processed portion 201 surface portion 202 curved surface shape 203a, 203b insertion hole 204a first support receiving cylindrical portion 204b second support receiving cylindrical portion 205a, 205b support hole 206 recessed portion 206a hole 207 cavity 208 protrusion 3 headrest support 300 head 301 neck 301a, 301b first leaf spring 301c, 301d second leaf spring 302 main body 303 elastic piece 304 locking claw piece 305 hole 306 opening 5 headrest 6 Headrest stay 7 Operation button 10 Tube 10a Through hole 10b Lower end 1000 Body tube part 1001 Holding piece 1002 Key piece 1003a 1st scale piece 1003b 2nd scale piece 1004 overhang 1004-1 upper side 10 04a Claw piece 1005 Groove fitting 1006 Annular groove X Left Y Right Q Front Z Rear A Vehicle seat device B Seat back frame C Headrest related equipment D Seat back

Claims (11)

In the upper frame of the vehicle seat back cylinder,
In this upper frame, a headrest support is attached, and a processed portion of a recessed portion for carrying a head support of the headrest support is formed,
The processing portion includes first and second insertion holes for receiving the headrest support having the head, neck and body portion in the vertical direction, and first and second insertion holes provided in the first and second insertion holes. 2Support receiving tube part,
The upper portion of the main body portion is received by the first and second support receiving cylinder portions,
Upper frame. In the upper frame of the vehicle seat back cylinder,
In this upper frame, a headrest support is attached, and a processed portion of a recessed portion for carrying a head support of the headrest support is formed,
The processing portion includes first and second insertion holes for receiving the headrest support having the head, neck and body portion in the vertical direction, and first and second insertion holes provided in the first and second insertion holes. 2Support receiving tube part,
The upper portion of the main body portion is received by the first support receiving cylinder portion, and the elastic piece of the main body portion is received by the second support receiving cylinder portion,
Upper frame. In the upper frame of the vehicle seat back cylinder,
In this upper frame, a headrest support is attached, and a processed portion of a recessed portion for carrying a head support of the headrest support is formed,
The processing portion includes first and second insertion holes for receiving the headrest support having the head, neck and body portion in the vertical direction, and first and second insertion holes provided in the first and second insertion holes. 2Support receiving tube part,
The upper portion of the main body portion is received by the first support receiver tube portion and / or the elastic piece of the main body portion is received by the second support receiver tube portion,
The upper frame is configured to be in contact with the first leaf spring and / or the second leaf spring provided on the neck portion at the processing portion. In the upper frame of the vehicle seat back cylinder,
In this upper frame, a headrest support is attached, and a processed portion of a recessed portion for carrying a head support of the headrest support is formed,
The processing portion includes first and second insertion holes for receiving the headrest support having the head, neck and body portion in the vertical direction, and first and second insertion holes provided in the first and second insertion holes. 2Support receiving tube part,
The upper portion of the main body portion is received by the first support receiver tube portion and / or the elastic piece of the main body portion is received by the second support receiver tube portion,
An upper frame, wherein the lower end of the neck portion is in contact with the processing portion.   The first and second support receiving cylindrical portions are configured such that at least one of the first and second support receiving cylindrical portions is formed in the vertical direction with respect to the horizontal direction of the arch portion of the upper frame. The upper frame according to any one of the above.   The contact of the first leaf spring is a horizontal attachment of the arch portion of the upper frame, and / or the contact of the second leaf spring is a coating in the orthogonal direction of the arch portion. Upper frame described in 3.   In the structure which provided the said 2nd support receptacle cylinder part in the perpendicular direction, it was set as the structure which provided the cylinder which encloses this 2nd support receptacle cylinder part and the said main-body part. Upper frame described in Section.   The upper frame according to claim 7, wherein the overhanging portion provided on the main body cylindrical portion of the cylindrical body is insert-supported or attached below the arch portion of the upper frame.   A fork-shaped extended portion is formed in the main body cylindrical portion, and the main portion of the extended portion covers the processed portion and is engaged with the lower end of the neck portion or the main portion of the neck portion The upper frame according to claim 8, wherein   10. The bifurcated extending portion comprises a pair of holding pieces for holding the processing portion, and a pair of key pieces engaged with the lower end of the neck or the main body of the neck. Upper frame described.   In the main body cylindrical portion of the cylindrical body, a plug-in cylindrical portion internally contacted with the first support receiving cylindrical portion, the key piece engaged with the horizontal surface of the processing portion, and the second support receiving cylindrical portion The ring-shaped groove which hold | maintains and the 1st and 2nd collar piece latched by the lower surface of the arch part of the said upper frame are respectively provided with the structure as described in any one of Claims 7-10. Upper frame.