JP6135578B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat. Specifically, the present invention relates to a shell type vehicle seat to which a bezel as a frame member is attached.

  2. Description of the Related Art Conventionally, a shell type vehicle seat to which a frame member called a bezel is attached is known. A typical example of a shell type vehicle seat is a seat mounted on a car traveling on a circuit. The shell-type seat mounted on the car running on the circuit uses a four-point seat belt, and two openings for passing the seat belt are provided near the passenger's shoulder. In addition, a bezel serving as a frame is attached to the opening. Such a shell type vehicle seat may be applied not only to a vehicle traveling on a circuit but also to a vehicle traveling in an urban area. In this case, unlike the vehicle seat traveling on the circuit, the opening provided in the vehicle seat does not pass through the seat belt, but from the viewpoint of design, the vehicle seat should have an opening and a frame member. (See FIG. 8).

JP 2007-76642 A

  By the way, as a method of attaching the frame member as described above to the opening, it is conceivable to prepare two parts constituting the frame member and attach the two parts around the opening (see FIG. 9). In this case, the edge of each component is configured to be slightly larger than the opening, and the shell and the seat pad are sandwiched between the edges. With such a configuration, the edge of the frame member positioned on the back surface side is arranged on the rear side of the back surface of the shell (see FIG. 8). Therefore, the design on the back side is easily influenced by the frame member, and as a result, the degree of freedom of the design on the back side in the vehicle seat is hindered.

  The present invention has been made in view of the above points, and the problem to be solved by the present invention relates to a vehicle seat provided with a shell, and the design on the back side of the shell depends on the frame member. It is to suppress this.

  In order to solve the above problems, the present invention takes the following means. First, a first invention is a vehicle seat comprising a shell and a seat pad placed on the shell, wherein a frame portion is attached to a through hole provided in the seat pad, and the shell is attached to the shell. An engaging portion that is fixed to the shell and extends from the front side of the shell, and a frame body that is engageable with the engaging portion and forms at least a part of the frame portion. And the frame main body is connected to the shell by engaging with the engaging portion.

  According to the first aspect of the invention, since the engaging portion is formed so as to be fixed to the shell and extend from the front, the position where the frame main body is fixed to the shell is determined, and the frame portion is the shell. It may be possible to make it difficult to see from the back side.

  According to a second invention, in the first invention, the engaging portion is arranged on the front side of the shell using a member bonded and fixed to the front side of the shell.

  According to the second aspect of the present invention, the engaging portion is formed separately from the shell, and the engaging portion is fixed to the front side of the shell through adhesive fixing. Can be formed relatively freely. Therefore, it may be possible to attach the frame portion more appropriately. Moreover, since it is adhesively fixed to the front side of the shell, it can be possible to prevent the engaging portion from obstructing the design on the back side of the shell.

  According to a third invention, in the first invention, the engaging portion is formed so as to be integrated with the shell.

  According to the third aspect of the invention, since the engaging portion can be formed without going through the work process of attaching a member to the shell, it may be possible to simplify the work process.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to suppress that the design of the back side of a shell is influenced by the frame member regarding the vehicle seat provided with the shell.

It is the perspective view which looked at the vehicle seat of the present invention from the back side. It is the front view which expanded the frame part periphery of the vehicle seat of this invention. FIG. 3 is an exploded perspective view relating to a back support portion of the vehicle seat in the first embodiment. FIG. 3 is a longitudinal sectional view around a frame portion in the first embodiment. FIG. 6 is an exploded perspective view relating to a back support portion of a vehicle seat in Embodiment 2. FIG. 6 is a longitudinal sectional view around a frame part in Example 2. It is a longitudinal cross-sectional view around the frame part in a modification. It is the perspective view which looked at the conventional shell sheet from the back side. It is the figure which showed the attachment aspect of the frame part of the conventional shell sheet.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings as appropriate. Note that in the present specification, directions such as the front-rear direction, the up-down direction, and the left-right direction are defined as X in the front direction, Y in the left direction, and Z in the up direction shown in FIG. For example, normally, when a seated person is seated, the field of view is the front, and the occipital side that does not enter the field of view is the rear. Moreover, regarding the description of the front side and the back side in the present specification, the surface side of the vehicle seat 1 that faces the seated person is the front side, and the opposite surface side is the back side.

  The vehicle seat 1 in the present embodiment is particularly applied to a front seat of a vehicle. The vehicle seat 1 includes a seat cushion 2 having a support surface that faces the thigh of a seated person, and a back support portion 3 that is attached to the seat cushion 2 so as to be tiltable. The seat cushion 2 is fixed to the floor F of the vehicle via the floor bracket 29, and the support surface can be moved back and forth by the slide rail 28. A metallic upper arm 72 is rotatably attached to both the left and right sides of the seat cushion 2, and the back support 3 is fixed to the upper arm 72. The back support portion 3 is configured to include a shell 31 mainly made of resin and a seat pad 32 placed so as to face the front side of the shell 31. The shell 31 is configured to be positioned on the back side of the standard seated person and the back side of the head, and is configured to receive a load applied to the rear side by the seated person. Yes. The shell 31 itself has rigidity that functions as a frame and does not substantially deform with respect to the load of the seated person applied through the seat pad 32. Therefore, the elastic seat pad 32 placed on the shell 31 is supported by the shell 31. A seat cover (not shown) is attached to the seat pad 32 by integral molding. Further, the back support portion 3 is provided with a frame portion 33 attached to a through hole 321 provided in the seat pad 32, and is arranged so that the frame portion 33 can be seen from the front (see FIG. 2).

  The shell 31 is configured to be able to receive a load applied from the back and head of the seated person by a continuous molded body, and is located on the left and right sides around the waist of the seated person on both the left and right sides of the lower part of the shell 31. The side support part 312 is provided so that it can do. An upper arm 72 is attached to the back side of the side support portion 312, and a cover member 38 is attached so as to cover the back side of the upper arm 72. The outer shape of the shell 31 is substantially triangular when viewed from the back, and is formed so that its top is positioned above the head of a standard driver. The seat pad 32 placed on the front side of the shell 31 has an outer shape that is substantially the same as that of the shell 31, and is attached so as to cover the edge of the shell 31 by folding its end. Is.

  Two openings 311 are provided in the upper part of the shell 31, and one through hole 321 disposed in a position facing the opening 311 is provided in the seat pad 32 made of a foamable material (FIG. 3). And FIG. 5). The through-hole 321 is covered with a frame portion 33 and the like around the front edge and the side surface. The frame portion 33 is fixed to the front side of the shell 31 and covers at least a part of the side surface of the through hole 321 of the seat pad 32. The frame portion 33 fixed to the shell 31 is formed by the engagement of the engaging portion 36 fixed to the shell 31 and extending from the front side of the shell 31 and the frame portion main body 332. It is configured to be possible. In the present embodiment, there is one through hole 321 provided in the seat pad 32, but there are two openings 311 provided in the shell 31, so that the frame portion is shaped like the shell 31 according to the shape. A spanning portion 332 b is provided in the approximate center of the main body 332. By adopting such a configuration, the frame body 332 is configured to be formed with two through portions 332a.

  In the first embodiment, the engaging member 362 constituting the engaging portion 36 is fixed to the shell 31. The shell 31 is provided with a positioning protrusion 314 capable of positioning the engaging member 362 (see FIG. 4). The positioning protrusion 314 is provided so as to protrude to the front side around the opening 311 of the shell 31, and the engaging member 362 can be positioned by fitting the engaging member 362 to the positioning protrusion 314. It is configured as follows. The engaging member 362 arranged along the positioning protrusion 314 can be joined to the front side of the shell 31 by the adhesive G applied to the base end portion 362 a of the engaging member 362. By attaching the frame main body 332 to the engaging portion 36, the frame main body 332 is disposed so as to cover a part of the seat pad 32. Therefore, the frame portion 33 functions as a frame that defines a part of the outer shape of the back support portion 3.

  The engaging portion 36 according to the first embodiment includes two through portions in which through holes 321 are formed in the same manner as the frame main body 332, and connects the frame main body 332 and the engaging portion 36. Even in this state, it is configured such that two through-hole portions 74 are provided. With such a configuration, the engaging portion 36 serves as a part of the frame portion 33. In the first embodiment, the hole portion 74 formed by connecting the engaging portion 36 and the frame main body 332 is formed such that the opening area on the front side is larger than the opening area on the back side. (See FIG. 4). The opening 311 provided in the shell 31 is formed so that the opening area becomes smaller from the back side toward the front side. As the hole portions 76 penetrating the back surface support portion 3, both ends of the hole portion 76 are provided. A minimum opening area 77 having the smallest opening area is provided at a position between them. Therefore, the side surface of the frame portion 33 is difficult to see from the back side, and the opening 311 of the shell 31 is difficult to see from the front side. Further, the minimum opening area 77 is provided on the back side of the intermediate position between the front and back of the back support 3.

  In order to connect the engaging part 36 and the frame main body 332, the claw part 62 which functions as an engaging protrusion is provided on the frame main body 332 side in the first embodiment. Further, the engaging portion 36 is provided with a claw receiving portion 64 on which the claw portion 62 can be hung as an engaging concave portion that can be engaged with the engaging protrusion. The engaging convex portion and the engaging concave portion are configured such that the engaging convex portion and the engaging concave portion are engaged on the outer peripheral side of the frame portion 33. Therefore, the engagement state between the engagement convex portion and the engagement concave portion is opposed to the seat pad 32 after the assembly as the vehicle seat 1 and cannot be visually recognized from the outside. In addition, the linear opening 66 formed at the joint of the frame main body 332 and the engaging portion 36 is the smallest opening in which the opening area of the through hole 321 is the smallest so that it is difficult to visually recognize from the front and the back. It is provided so as to be adjacent to the area portion 77, and in particular, provided closer to the front side than the minimum opening area portion 77. The frame main body 332 has an edge 332c formed so as to further spread in the circumferential direction at a portion on the front side where the opening area is relatively large, and the frame main body 332 has a frame portion with respect to the engaging portion 36 that is bonded and fixed to the shell 31. By attaching the main body 332, the periphery of the through hole 321 of the seat pad 32 can be slightly pressed.

  The vehicle seat 1 according to the first embodiment includes a shell 31 and a seat pad 32 placed on the shell 31, and is a vehicle in which a frame portion 33 is attached to a through hole 321 provided in the seat pad 32. An engagement portion 36 that is fixed to the shell 31 and extends from the front side of the shell 31, and is engageable with the engagement portion 36. A frame main body 332 constituting a part of the frame 33, and the frame main body 332 is connected to the shell 31 by engaging with the engaging portion 36. Therefore, the position where the frame main body 332 is fixed with respect to the shell 31 is determined, and the frame 33 can be made difficult to visually recognize from the back surface. Moreover, since it is the said structure, since the engaging member 362 and the frame main body 332 can be attached by the operation | work from the front side of the vehicle seat 1, attachment work becomes easy. Moreover, since the frame main body 332 and the engagement part 36 are fixed only by pushing the frame main body 332 into the engagement part 36, the attachment work of the frame part 33 becomes easy.

  Further, the engaging portion 36 is formed by using a member bonded and fixed to the front side of the shell 31, and the engaging portion 36 formed separately from the shell 31 is fixed to the shell 31 through an adhesive means. To do. Therefore, the structure of the engaging portion 36 can be formed relatively freely, and the frame portion 33 can be more appropriately attached. Moreover, since it is adhesively fixed to the front side of the shell 31, it can be possible to prevent the engaging portion 36 from obstructing the design on the back side of the shell 31. Further, since the adhesive G is used for joining the engaging member 362 and the shell 31 and no screw member such as a screw is used, the number of parts can be reduced. Further, since there is no need to attach a screw member to the back side of the shell 31, the degree of freedom of design on the back side of the shell 31 can be increased.

  Further, since the joint 66 formed between the frame main body 332 and the engaging portion 36 is provided on the front side with respect to the minimum opening area 77, it is difficult to visually recognize from the back of the vehicle seat 1. Will be provided. Therefore, it becomes possible to improve the designability when the vehicle seat 1 is viewed from the back. Moreover, since the said joint 66 is provided in the back side rather than the intermediate position in the front-back direction of the through-hole 321 formed by the engaging part 36 and the frame part main body 332, when the vehicle seat 1 is viewed from the front. In addition, the joint 66 is difficult to visually recognize, and the design of the vehicle seat 1 can be improved.

  Moreover, since the shell 31 and the engaging part 36 are being fixed by adhesion | attachment, the selection range of the material which comprises the shell 31 and the engaging part 36 spreads. For example, it is possible to employ a resin containing carbon. Further, since the base end portion 362a of the engaging member 362 formed as a separate body from the shell 31 is disposed so as to contact the front side of the shell 31, the engaging member 362 is moved to the rear side by a load imposed by the seated person. Even when pressed, the shell 31 suppresses the engagement member 362 from moving rearward, and rattling of the engagement portion 36 and thus the frame main body 332 can be suppressed.

  Next, the second embodiment will be described. Since the second embodiment is different from the first embodiment in the configuration of the engaging portion 36, the following description will be focused on that point. In Example 2, the engaging part 36 is comprised integrally with the shell 31 so that it may protrude from the front side of the shell 31 (refer FIG.5 and FIG.6). That is, the engaging portion 36 is not bonded to the shell 31, and the engaging portion 36 is formed by a protruding shape formed when the shell 31 is formed. Accordingly, in the second embodiment, there is no need to join a member separately prepared for providing the engaging portion 36, and therefore the joining step of the engaging portion 36 is not necessary. Moreover, in Example 2, the shape which protrudes from the shell 31 is made into the shape of a support | pillar, and it is set as the structure provided with the nail | claw part 62 as an engaging protrusion in the edge part. Accordingly, in the second embodiment, the engaging portion 36 does not function as a frame, and the frame portion main body 332 performs the function as a frame. A plurality of such protruding shapes are provided along the edge of the opening 311 provided in the shell 31. The frame main body 332 includes a claw receiving portion 64 as an engaging recess that can be engaged with the engaging protrusion.

  In the case of the embodiment 2, the engaging portion 36 does not define the shape of the frame. That is, the shape of the frame can be determined by the shape of the frame body 332. With this configuration, it is possible to prevent the joint 66 from being generated in the frame. Therefore, the degree of freedom of the frame shape can be increased, and the design can be improved. Moreover, since the position of the engaging part 36 with respect to the shell 31 is determined when the shell 31 and the engaging part 36 are formed, it is possible to suppress the attachment position of the frame part 33 on the vehicle seat 1 from being varied for each product. Can be.

Further, since the engaging portion 36 is formed integrally with the shell 31, the engaging portion 36 can be formed without a work process for attaching a member to the shell 31, and therefore the work process can be simplified. Can be possible.
"Modification"

  As a modified example, as shown in FIG. 7, it is possible to provide an engaging convex portion on the frame body 332 and an engaging concave portion on the engaging portion 36. More specifically, the claw portion 62 may be provided on the frame body 332 and the claw receiving portion 64 may be provided on the engaging portion 36. This modification shows an aspect in which the engaging portion 36 is configured to be integrated with the shell 31 and the engaging portion 36 also constitutes a part of the frame. Also in this modified example, since the engagement convex part and the engagement concave part are engaged on the outer peripheral side of the frame part 33, the engagement state between the engagement convex part and the engagement concave part cannot be visually recognized.

  As mentioned above, although it demonstrated using one embodiment, this invention can be implemented with other various forms besides the said embodiment. For example, an attachment member can be joined to the shell with an adhesive or the like, and the engaging portion can be attached via the attachment member. In this case, the engagement portion is fixed to the shell, though the adhesive and the attachment member are interposed.

  In addition, it is not a configuration in which a claw portion is formed in the engaging portion and a claw receiving portion is formed in the frame main body, but an aspect in which the engaging portion is formed in the frame main body and the claw portion is formed in the engaging portion. Alternatively, it is possible to adopt an aspect in which both the claw portion and the claw receiving portion are formed on the engaging portion and the frame main body. In addition, it is possible to adopt a configuration in which the frame main body and the engagement portion are fixed without being in the form of a claw portion or a claw receiving portion, and can be fixed by adhesion or fixed by fitting. .

  Moreover, even if it is the structure by which the engaging part is integrally provided in the shell like Example 2, you may make it an engaging part have a function as a frame. For example, it is also possible to provide a wall-like engagement portion along an opening provided in the shell. Moreover, it is also possible to employ a configuration in which a plurality of openings are provided in the engaging portion that protrudes like a hill on the front side of the shell.

  Moreover, even if it is the structure which provides an engaging part integrally in a shell like Example 2, a latching | locking part can also be made into another member. For example, the locking portion can be integrated with the shell by performing integral molding so that the engaging portion formed of metal is integrated with the resin of the shell.

  The vehicle is not limited to a vehicle, and may be a vehicle that flies in the air such as an airplane or a helicopter, or a vehicle that moves on the sea surface or in the sea such as a ship or a submersible.

DESCRIPTION OF SYMBOLS 1 Vehicle seat 2 Seat cushion 3 Back surface support part 31 Shell 32 Seat pad 33 Frame part 36 Engagement part 311 Opening 321 Through-hole 332 Frame part main body 362 Engagement member

Claims (3)

A vehicle seat comprising a shell and a seat pad placed on the shell, wherein a frame portion is attached to a through hole provided in the seat pad;
An engaging portion fixed to the shell and extending from the front side of the shell, and a frame portion that is engageable with the engaging portion and forms at least a part of the frame portion With a body,
The vehicle seat according to claim 1, wherein the frame main body is connected to the shell by engaging with the engaging portion. The vehicle seat according to claim 1,
The vehicle seat according to claim 1, wherein the engaging portion is arranged on the front side of the shell using a member bonded and fixed to the front side of the shell. The vehicle seat according to claim 1,
The vehicle seat according to claim 1, wherein the engaging portion is formed integrally with the shell.

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