JP2019093828A - Headrest support holding structure of upper frame - Google Patents

Abstract

To solve the problem in which although, with respect to a conventional bracketless structure (a structure eliminating a bracket to be a transaction object as one component), a pseudo structure is proposed, only a raw material of an upper frame is changed; the structure is one in which the bracket is inserted in a fixed hole provided on the upper frame, so that it is not considered bracketless.SOLUTION: In a headrest support holding structure of an upper frame, the upper frame bridged across a side frame of a vehicle seat back is composed of an upper surface part provided with a pair of insertion holes for inserting a headrest support, a lower surface part, and a side surface part connecting the upper and lower surface parts. On any one surface part, a headrest support grip part is formed. The grip part is an integral structure with the upper frame and can hold the headrest support, and realizes bracketless. A bracketless structure can be achieved. It is possible to achieve reduction of the number of components, simplification of manufacturing operation, speed-up, and an increase in economical efficiency.SELECTED DRAWING: Figure 1

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a headrest support holding structure for an upper frame that is bracketless (a structure that eliminates a bracket for gripping a headrest support).

  With respect to the bracketless (the holding structure of the headrest support without the bracket) intended by the present invention, known inventions and / or similar structures, individual configurations are disclosed in respective documents.

  As for the grip piece, the specification of WO 2016-046884 and the main body (9a) obtained by bending the flat plate material (9p) of the holder bracket (9) into a tubular shape in FIG. 5 (Document (1)) The structure which comprises with the arm part (9b) of (9a) and welds this arm part (9b) to the top frame (4b2) of a seat back frame (4b) is disclosed. The present invention is an improvement of the manufacture and attachment of the conventional bracket, and aims at facilitation of manufacture and improvement of quality. In the document (1), the main body (9a) bent in a tubular shape has a structure corresponding to a conventional bracket (not shown), and is not bracketless intended by the present invention.

  With regard to the upper frame, the specification (Japanese Patent Laid-Open No. 2004-16710) and in FIG. 2 (Document (2)), the stay (61) of the headrest (60) is inserted and supported and the headrest holder (62) The same as the support) is a structure to be embedded in a holder hole (21c) formed through the main body (21a) of the upper frame (21). However, the present invention is an upper frame (21) made of a resin material and has a solid structure (see FIG. 7). Therefore, the holder hole (21c) of the solid upper frame (21) of the document (2) has a structure corresponding to a bracket, and is not bracketless intended by the present invention. Also, no gripping piece is provided.

  Furthermore, regarding the upper frame, the U-shaped cross section is movably attached to the upper cross member (15) (same as the upper frame) in the specification of Japanese Patent Laid-Open No. 2003-312338 and in FIG. 2 (Document (3)). Stay holder for supporting the stay (4) of the headrest (3) vertically in the predetermined position in the fixing holes (23e) and (23f) of the upper and lower surface parts (23a) and (23b) of the headrest support member (23) (25) Fix (same as headrest support). Therefore, the fixing holes (23e) and (23f) in the document (3) have a structure corresponding to a bracket and are not bracketless as intended by the present invention. Also, no gripping piece is provided.

WO 2016-046884 Japanese Patent Application Publication No. 2004-16710 JP 2003-312338 A

  In the case of the conventional bracketless literature and the like, in the document (1), the manufacture is facilitated and the like, and the main body portion (9a) obtained by bending a plate material into a tubular shape is provided. Absent. Further, in the document (2), there is no direct disclosure about bracketless (a structure that eliminates a bracket to be traded as one part), which is limited to the change of material of the upper frame. Furthermore, in the document (3), the fixing holes (23e) and (23f) have a structure corresponding to a bracket. Therefore, there is no direct disclosure regarding bracketless.

  The present invention is intended to provide a bracket-less headrest support holding structure and to reduce the number of parts, simplify and speed up the manufacturing operation, and improve the economic efficiency. As the means, claims 1-6 are proposed.

According to a first aspect of the present invention, there is provided an upper frame which is extended to a side frame serving as a framework of a vehicle seat back.
The upper frame comprises an upper surface portion and a lower surface portion respectively provided with insertion holes for inserting a headrest support, and a side surface portion connecting the upper and lower surface portions, and the headrest support gripping portion is formed by any one surface portion. The upper frame is a headrest support holding structure of the upper frame which is formed, the holding portion is integrally formed with the upper frame, and the integrated structure holding portion is capable of holding the headrest support and capable of bracketless.

  Therefore, the invention of claim 1 is characterized in that it can provide a holding structure for a headrest support that can be bracketless. Further, by providing the holding structure of the headrest support of the present invention, it is possible to secure the merits such as reduction of the number of parts, simplification of manufacturing operation, speeding up, and improvement of economic efficiency. .

  According to a second aspect of the present invention, a pair of gripping pieces formed by punching is formed around the face piece portion at the face portion of the side face portion, and the pair of holding pieces The headrest support holding structure of the upper frame is characterized in that the surface position is taken as a proximal end) and a tubular gripping portion is bent in a tubular shape and the tubular gripping portion is used as a bracket substitute.

  Therefore, the invention of claim 2 can achieve the feature achievement in the invention of claim 1 and can provide a bracket substitute that is most suitable for achieving this feature.

  In the third aspect, the insertion holes are respectively provided at the same positions of the upper and lower surface portions of the side surface portion, and the headrest support can be inserted into the insertion holes, and the hole space of the insertion holes and the gripping space of the gripping pieces are vertical It is a headrest support holding structure of an upper frame characterized by being in the same position in the direction.

  Therefore, the invention of claim 3 can provide the achievement of the feature of the invention of claim 1, the provision of the achievement of the feature, and the structure capable of deploying the headrest support in the optimum position.

  A fourth aspect of the present invention is a set in which the tubular strength can be improved by clinching or concavo-convex fitting and / or deformation of the gripping pieces can be prevented or gaps are formed at each free end of the pair of gripping pieces. It is a headrest support holding structure for an upper frame characterized in that any one or one of them is attachable.

  Therefore, the invention of claim 4 can achieve the feature achievement in the invention of claim 1 and can provide a bracket substitute that is most suitable for achieving this feature.

  According to a fifth aspect of the present invention, there is provided an upper frame characterized in that rising rib pieces are formed on the outer peripheral edge of the insertion hole opened in the upper surface, and the rib pieces can support the main body under the neck of the headrest support. It is a headrest support holding structure.

  Therefore, the invention of claim 5 can achieve the feature achievement in the invention of claim 1 and can provide a bracket substitute that achieves the feature achievement and can deploy the headrest support in an optimum position.

  A sixth aspect of the present invention is the headrest support holding structure for an upper frame characterized in that the rib pieces are erected in a rectangular shape at the outer peripheral edge in the vertical direction of the hole space and surround the upper portion of the main body.

  Therefore, the invention of claim 6 achieves the features of the invention of claim 1, and the achievement of this feature and the ability to reliably support the upper portion of the main portion of the headrest support with the rib piece on the upper surface portion. There is.

  The upper frame is characterized in that at least one notch is formed in the rib piece, and a protrusion bulging in the upper part can be locked in the upper part of the main body in the notch. Headrest support holding structure.

  Therefore, the invention of claim 7 has the same features as the invention of claim 6.

Scaled exploded view of partially missing seatback and headrest related equipment as a whole Front elevation view showing the main part of the linkage between the upper frame and the headrest support The elevation view of Figure 2-1, Fig. 2-1 is a back elevation view of the partial defect of Fig. 2-1 (an example in which a notch is provided below the face piece cloth portion) Fig. 2 is a back elevation view 2 of a partial defect in Fig. 2 (an example in which a notch is provided below the grip) Fig. 2 is a back elevation view of a part of Fig. 2-1 (this is an example in which a notch is provided in a rib on the upper frame of the upper frame) In the essential part of Fig. 2-5, an enlarged top view with a notched window part on the upper part of the rib piece Front view provided with a weir tightening portion at the upper end of the holding portion showing the main portion of the cooperative relationship between the upper frame and the headrest support It is another example of FIGS. 3-1, and the front view which provided the weir tightening part in the lower end of a holding part Rear view of Figure 3-1 Right side view of Figure 3-1 Enlarged plan view of Figure 3-1 AA cross section of FIG. 3-4 BB cross section of FIG. 3-3 EE sectional drawing of FIG. 3-3 FF sectional drawing of FIG. 3-3 GG sectional view of FIG. 6 H-H cross section of FIG. 6 I-I sectional view of FIG. 4 A schematic diagram of a simple bending type showing an example of each part of a rib piece Stepped bend type schematic diagram showing another example of each part of rib piece It is a schematic diagram showing clinch processing by an example of the free end of a grasping part, Another example of the free end of the grip, a schematic view showing the burring process A schematic view showing butt processing in another example of the free end of the grip portion The schematic diagram which showed separation processing by another example of the free end of a holding part A schematic view with clinching and scoring in yet another example of the free end of the grip A top view showing a preferred example of a headrest support

  Hereinafter, preferred embodiments of the present invention will be described.

  The vehicle seat device A shown in FIG. 1 is a partially exploded view with an exploded view of 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. In the seat back frame B, the side frame 1 and the upper frame 2 are provided. The headrest related device C is configured by a headrest support 5 (referred to as a support 5), a headrest 8 and a headrest stay 7 (referred to as a stay 7).

  Hereinafter, preferred embodiments of the present invention will be described. In the drawings, hatching is omitted in some drawings. 1 and 2 show, for example, a part of a vehicle seat device A and a headrest related device C. The seat back frame B includes the side frame 1 and the upper frame 2 as described above. Further, as described above, the headrest related device C includes the support 5, the stay 7 inserted and supported by the support 5, and the headrest 8 provided on the stay 7.

  Figures 2-1 to 2-6 of the main figure, Figures 4 and 5 of reference figures (hereinafter, the description of the figures is omitted), the upper frame 2 (for example, manufactured by transfer press processing), and the support 5 Shows the main part of the cooperative relationship with The upper frame 2 bends and forms a steel material. A preferable example is shown in the same figure, and is a side surface portion 2c connecting the end portions of the upper surface portion 2a, the lower surface portion 2b opposed to the upper surface portion 2a, and the upper and lower surface portions 2a and 2b in the vertical direction X (vertical direction). The bent portions 2d and 2e are formed at the joint between the upper and lower surface portions 2a and 2b and the side surface portion 2c. The bent portions 2d and 2e are configured to provide slack (buffering effect), for example, securing strength in the longitudinal direction Y, at least on the upper and lower surface portions 2a and 2b and the side surface portion 2c, including the upper frame 2. . The free ends of the upper and lower surface portions 2a and 2b are provided with bent portions 2f and 2g. The bent portions 2f and 2g, for example, mainly provide the upper frame 2 and the upper and lower surface portions 2a and 2b with slack (buffering effect), for example, securing strength in the longitudinal direction Y, for example. Then, the insertion holes 200 and 201 are formed in the upper and lower surface portions 2b and 2c, respectively. The insertion holes 200 and 201 are formed at the same position in the vertical direction X. While the rib pieces 202 and 203 are formed on the front and back surfaces of the upper and lower surface portions 2a and 2b of the outer periphery of the insertion hole 200 and 201, at least the rib pieces 202 of the upper surface portion 2a in the upper and lower surface portions 2a and 2b. The notch portions 202a, 202a, etc. are formed in the. As will be described later, the notch portions 202a and 202a receive and support a locking projection provided on a neck portion (described later) below the head (described later) of the support 5 (see FIG. 8, for example, For the purpose of detenting or strengthening the connection etc.). The hole spaces 200a and 201a of the insertion holes 200 and 201 are open at the same position in the vertical direction X with the holding spaces 204a and 204b (holding space) of the holding part (holding part) described later. ) And can hold the support 5 vertically.

  The rib pieces 202 have the structures of the rising pieces 202b and 202b of FIG. 11-1 as shown in FIGS. 11-1 and 11-2 and FIGS. 2-3 to 2-6, etc. In principle, only FIG. 11-1 is shown), FIG. 11-2 and the rising pieces 202b and 202b such as FIGS. 2-3 and 2-6, and at least the upper attached pieces 202c and 202c The structure of, etc. can be considered. The upper stage attached pieces 202c and 202c are shown in the front side peripheral part of FIG. 4 or the side side peripheral part in FIG. Then, the upper ends of the raised upper attached piece portions 202c, 202c hold the locking projections 5b1 at the lower end of the neck portion 5b. Although the structure of the rib piece 202 described above is not described in detail, a part of the structure can also be adopted for the rib piece 203 of the lower surface 2b.

  In addition, as shown in FIGS. 2-1 and 2-5, a predetermined portion of the face 2c100 constituting the side surface portion 2c (a portion provided with a pair of supports 5 and 5 on the upper frame 2 is indicated, but the same structure is applied hereinafter) In the explanation on one side, the pair of holding pieces 2c102 are separated by punching around (as a center) the face piece piece 2c101 which is the same surface position (described later) as the face body 2c100. , 2c102 (referred to as 2c102). The pair of gripping pieces 2c102 form a tubular bending portion in a tubular shape with the face piece 2c101 as a base end (a base position in the vertical direction (vertical direction X) of the face 2c 100 as a base end). The tubular grip 204 is a conventional bracket substitute. And as for the free end of the tubular holding part 204, each example shown in FIGS. 12-1 to 12-4 is preferable. For example, FIG. 12-1 shows a clinching process, FIG. 12-2 shows a burring process, FIG. 12-3 shows a butt processing, and FIG. 12-4 shows a separating (separating) process. There is. In addition, the grip portion 204 is located closer to the upper surface portion 2a and the lower surface portion 2b than the side surface portion 2c, and is in the bent U-shaped framework of the upper frame 2, and a conventional upper frame (not shown) There is no inferiority (it is a structure that fits in the conventional seat back). In addition, as shown in FIG. 2-3, at one or more locations of the lower surface 2b of the grip 204 or at one or more locations on the face piece 2c101, one or more notch pieces 204c are appropriately formed. Do. In FIG. 2-2, FIG. 2-3, etc., it is the holding part 204, and, in FIG. 2-4 etc., it is the planar column piece part 2c101. Also, although not shown, there may be a free end of the grip 204. The locking projection 501 of the support 5 is locked to the notched piece portion 204c (to prevent rattling of the support 5 and to prevent it from coming off). Although described later with reference to FIGS. 2-2 and 2-6, in the structure in which the rising piece portion 202d is formed in the rib piece 202, a plurality of notched window portions 202e are formed, and the rib piece 202, and This is useful for facilitating the molding of the upper stage attached piece portion 202c or for reducing the weight and the like. Further, as described later, the locking projection 5b1 is inserted into and supported by the notch window portion 202e.

  The support 5 shown in FIG. 13, FIG. 4, FIG. 5, etc. has a head 5a, a neck 5b provided with a locking projection 5b1 on the outer peripheral surface under the head 5a, and a lower part of the neck 5b. On the side, the seat back D is constituted by, for example, elastic pieces 500, 500 provided on the width direction side (the same direction as the longitudinal direction Y) and a main body 5c provided with locking projections 501, 501. . The elastic pieces 500 (explained at one side) on the left and right sides (width direction side) of the support 5 are pressed against the pair of grip pieces 2 c 102 of the grip portion 204. Further, the locking projection 5b1 of the support 5 is in contact with and locked to the upper surface of the rib piece 202 formed on the upper surface portion 2a. Thus, the support 5 is gripped and locked by the pair of gripping pieces 2c 102 of the gripping portion 204. See Figure 3-4 and Figure 4. In the figure, reference numeral 502 denotes an elastic hanging member, which is locked to the upper end of the rib piece 202, thereby making use of the locking relationship between the locking projection 501 and the notch 204c. Ensure elasticity. That is, there are benefits such as the function of buffering the vertical movement that occurs during traveling and the like, and the reduction of noise generation. As shown in FIGS. 2-1, 2-2, 3-4, etc., in this example, the elastic pieces 500, 500 and the locking projections 501, 501 are the same side surface 5 cc of the main body 5c. It has become. However, the present invention is not limited to this example, and there may be an example in which both are provided on different side surfaces of the main body 5c.

  The support 5 is inserted, for example, sequentially from the insertion hole 200 of the upper surface 2a to the insertion hole 201 of the lower surface 2b from the upper opening of the upper surface 2a through the holding space 204a. Do the operation. By this operation, the main body portion 5 c is inserted into and supported by the insertion hole 200, the grip portion 204, and the insertion hole 201. Further, the locking projection 5b1 of the head 5a is abutted and locked to the rib piece 202. In addition, the locking projection 5b1 is inserted into and supported by the notched window portion 202e of the rib piece 202 (the upper attached portion). Then, the lower end of the main body portion 5c slightly protrudes from the insertion hole 201 as shown in, for example, FIG. 2-2, FIG. 2-3, FIG. 3-1, and FIG. 501 is cross-locked to the notch 204c of the main body 5c. The elastic piece 500 of the main body 5 c is in pressure contact with the grip 204. By this operation, the support 5 is supported by the upper frame 2 without a bracket.

  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 surface 2b lower surface 2c side surface 2c 100 face 2c 101 planar column piece 2c 102 grasped piece 2d bent portion 2e bent portion 2f bent portion 2g bent portion 200 insertion hole 200a hole space 201 insertion hole 201a hole space 202 Rib piece 202a Notched part 202b Standing piece part 202c Vertically mounted piece part 202d Standing piece part 202e Notched window part 203 Rib piece 204 Gripping part 204a Gripping space 204b Gripping space 204c Notched part 5 Headrest support 5a Head 5b Neck 5b1 Locking projection 5c Body 5cc Side 500 Elastic piece 501 Locking projection 502 Elastic suspension 7 Headrest stay A Vehicle seat device B Seat back frame C Headrest related equipment D Seat back X Vertical direction y Longitudinal direction

Claims (7)

In the upper frame that is passed to the side frame that becomes the framework of the vehicle seat back,
The upper frame comprises an upper surface portion and a lower surface portion respectively provided with headrest support insertion holes, and a side surface portion connecting the upper and lower surface portions, and the headrest support is gripped by any one of the surface portions. A headrest support holding structure of an upper frame, which forms a part, the holding part is integrally formed with the upper frame, and the holding part of the integrated structure can hold the headrest support and enables bracketless.   A pair of holding pieces formed by punching is formed on the face portion of the side face portion centering on the face piece portion, and the pair of holding pieces is used as a base end of the face piece portion (surface position in the vertical direction of the face 2. A headrest support holding structure for an upper frame according to claim 1, wherein the proximal end is bent in a tubular shape into a tubular grip portion, and the tubular grip portion is used as a bracket substitute.   Insertion holes are respectively provided at the same positions of the upper and lower surface portions of the side surface portion, and the headrest support can be inserted into the insertion holes, and a hole space of the insertion holes and a gripping space of the gripping pieces The headrest support holding structure for an upper frame according to claim 1, characterized in that they are present at the same position in the vertical direction.   At each free end of the pair of gripping pieces, tubular strength can be improved by clinching or concavo-convex fitting, and / or deformation of the gripping pieces can be prevented by butt assembling, or assembly can be performed with a gap formed. 3. The headrest support holding structure for an upper frame according to claim 2, wherein one or the other is selectable.   A rising rib piece is formed on an outer peripheral edge of the insertion hole opened in the upper surface portion, and the rib piece can support the main body portion under the neck portion of the headrest support. The headrest support holding structure of the upper frame described in Item 3.   The headrest support holding structure for an upper frame according to claim 5, wherein the rib piece is erected in a rectangular shape at an outer peripheral edge in the vertical direction of the hole space and surrounds an upper portion of the main body portion.   The upper frame according to claim 5, characterized in that at least one notch is formed in the rib piece, and a protrusion which bulges to an upper portion of the main body can be locked in the notch. Headrest support holding structure.