JP2018079085A - Chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair that allows rigid attachment of a seat body.SOLUTION: A chair comprises a seat body on which a user is seated, and a support body that supports the seat body. The seat body comprises a seating part constituting a seating surface and formed by at least an elastomer, and a first fixing part fixed to the seating part and formed by a member having higher rigidity than that of the seating part. The support body comprises a second fixing part. The seat body and the support body are fixed by fixing the first fixing part and the second fixing part with a predetermined fixing member.SELECTED DRAWING: Figure 3

Description

  The present disclosure relates to chairs.

  Conventionally, as shown in Patent Document 1, a chair in which a seat body on which a chair user sits is formed of an elastomer has been proposed.

JP 2001-327360 A

  Since the elastomer has high flexibility, there is a possibility that when a screw or the like is directly fastened to the elastomer seat to attach the seat to the support that supports the seat, the screw may be loosened or detached.

  This indication proposes the chair which can aim at the solid attachment of a seat.

  One embodiment of the present disclosure is a chair including a seat body and a support body that supports the seat body. The seat body constitutes a seating surface, and is a seat portion formed of at least an elastomer, and is fixed to the seat portion, and a first fixed portion formed of a member having higher rigidity than the seat portion. And comprising. Moreover, the said support body is provided with a 2nd fixing | fixed part. Then, by fixing the first fixing part and the second fixing part with a predetermined fixing member, the seat body and the support body can be fixed.

  In the chair configured as described above, since the first fixing portion is a member having higher rigidity than the seating surface, the first fixing portion is fixed when the first fixing portion and the second fixing portion are fixed by the fixing member. Compared to the case where is assumed to be made of an elastomer similar to the seating portion, it is possible to realize a firm fixation. Therefore, the seat body can be firmly attached to the support body.

  In the chair described above, the seating portion and the first fixing portion may be integrally formed. Since the seating portion including the elastomer and the first fixing portion are integrally formed, it is possible to reduce the risk that the seating portion and the first fixing portion are separated.

Moreover, the chair mentioned above WHEREIN: The said 1st fixing | fixed part may be formed along the edge of at least one part of the said seating part in the state accumulated on the lower surface of the said seating part.
If it is such a structure, a deformation | transformation of the edge of a seating part can be suppressed by the 1st fixing | fixed part. Moreover, since the 1st fixing | fixed part is piled up on the lower side of a seating surface, it can suppress that a 1st fixing | fixed part contacts a user, and sitting comfort falls because a user contacts a 1st fixing | fixed part. Can be suppressed.

Moreover, the chair mentioned above WHEREIN: The said 1st fixing | fixed part may be a frame-shaped member formed along the edge of the said seating part, and forming an opening in the center.
If it is such a structure, a deformation | transformation of the edge of a seating part can be suppressed by the 1st fixing | fixed part. Further, since the elastic deformation of the seating portion is ensured by the opening of the first fixing portion, it is possible to suppress the sitting comfort from being lowered.

  Further, in the chair described above, the fixing member is a member having a male screw, the first fixing portion has a female screw to be fastened to the male screw, and the second fixing portion has a penetrating through which the male screw can be inserted. A hole is formed, and the first fixing portion and the second fixing portion can be fixed by inserting the male screw into the through hole and fastening it with the female screw. Good.

With such a configuration, the first fixing portion and the second fixing portion can be firmly fixed by fastening the screws.
In the chair described above, the first fixing portion is formed at the end portion in the first direction of the seat body so as to extend in the second direction intersecting the first direction, and is the end in the first direction. You may be comprised so that a part may have the front drooping part which inclines below.

If it is such a structure, since the edge part of the 1st direction of a seat becomes the shape which inclined below by the front drooping part, a user's sitting comfort can be improved.
Further, in the chair described above, the support body has an edge member that is a tubular or columnar member disposed along at least a part of the edge of the seat portion, and the seat body includes the seat portion. The edge member may be configured to cover at least part of the edge member from above.

  If it is such a structure, a seating part can suppress that a user touches a support body directly by covering a support body from an upper side, and can aim at the improvement of a user's sitting comfort.

FIG. 1A is a side view, FIG. 1B is a front view, FIG. 1C is a rear view, FIG. 1D is a plan view, and FIG. 1E is an IE of FIG. 1A. -IE sectional drawing. It is a perspective view which shows a seat and a framework. It is a perspective view which shows a seat and a framework. It is a perspective view which shows the state in which the seat body was attached to the framework. 5A is a plan view, FIG. 5B is a side view, FIG. 5C is a sectional view taken along the line VC-VC of FIG. 5A, and FIG. 5D is a bottom view showing only the backup resin. is there. 6A is a front view, FIG. 6B is a VIB-VIB sectional view of FIG. 5A, FIG. 6C is a VIC-VIC sectional view of FIG. 5A, and FIG. 6D is a screw member. It is sectional drawing by the same cross section as FIG. 6B of the state which fixed backup resin and the seat-plate receiving part by FIG. It is sectional drawing by the same cross section as FIG. 6B which shows the modification of backup resin. 5C is a cross-sectional view of the same cross section as FIG. 5C, and FIG. 8A to FIG. 8C are cross-sectional views showing modifications of the state of the elastomer entering the slit.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.
[1. Embodiment]
[1-1. overall structure]
As shown in FIG. 1, the chair 1 includes a seat body 11, a backrest 13, a support body 15, a leg end portion 17, and the like.

  In the present embodiment, the configuration of each unit may be described using directions such as front and rear, left and right, and up and down. However, these directions are merely used for convenience of description, and the embodiment of the present disclosure There is nothing to limit about. For the purpose of facilitating understanding, the above-described direction is based on the user when the user normally sits on the chair 1.

The chair 1 is symmetrical to the left and right with reference to a plane extending in the front-rear and up-down directions.
[1-2. Support 15]
As shown in FIGS. 2 to 4, the support 15 includes a pair of left and right pipe bodies 31 formed by bending and welding a tubular metal pipe, a rod-shaped front side connecting portion 32 that connects the pipe bodies 31, and The rear connecting portion 33 and a seat plate receiving portion 34 attached between the pair of pipe bodies 31 are provided.

The pipe body 31 includes a front pillar 41, a rear pillar 42, a lower pillar 43, and an upper pillar 44.
The front pillar 41 is located at the front portion of the pipe body 31 and has a length in the vertical direction.
The rear pillar 42 is located at the rear part of the pipe body 31 and has a length in the vertical direction.

The lower column 43 is located at the lower part of the pipe body 31 and connects the lower end of the front column 41 and the lower end of the rear column 42. The lower pillar 43 is disposed along the floor surface on which the chair 1 is installed.
The upper column 44 is located at the upper part of the pipe body 31, and connects the upper end of the front column 41 and the upper side of the rear column 42 slightly above the vertical center. The front column 41 and the upper column 44 are bent and connected via a bent portion 46 formed by bending a metal pipe. The rear end portion of the upper column 44 is connected to the rear connecting portion 33 by welding. The upper column 44 has a thick portion 51 on the front side and a thin portion 52 on the rear side. Moreover, the upper pillar 44 is arrange | positioned along the right and left edge of the seat part 21 mentioned later. The upper column 44 is an example of the edge member of the present disclosure.

  The thick part 51 has the same diameter as other parts in the pipe body 31. On the other hand, the thin portion 52 is formed with a concave portion 53 that is recessed downward on the upper surface, whereby the thickness is smaller than that of the thick portion 51.

The front connection portion 32 connects the front pillars 41 of the left and right pipe bodies 31 to each other. Further, the rear side connecting portion 33 connects the rear pillars 42 of the left and right pipe bodies 31 to each other.
The seat plate receiving portion 34 is a plate-like member that is bent around. The seat plate receiving portion 34 has a pair of left and right side portions 55 arranged along a pair of left and right upper pillars 44 and a front portion 56 that connects the front ends of the pair of side portions 55.

  The side portion 55 is welded to the upper column 44, whereby the seat plate receiving portion 34 is fixed to the upper column 44. As shown in FIG. 3, through-holes 57 are formed in each of the pair of left and right side portions 55 at three positions spaced in the front-rear direction. The through hole 57 is configured so that a male screw of a screw member 65 described later can be inserted. The seat plate receiving part 34 is an example of a second fixing part of the present disclosure.

[1-3. Seat 11]
The seat 11 is for a user to sit on, and includes a seating portion 21 and a backup resin 22 as shown in FIGS. 3 and 5A to 5C.

The seating portion 21 forms a seating surface 21a on the upper side, and is formed of an elastomer. An elastomer broadly refers to an elastic polymer material.
The seating portion 21 has a substantially rectangular plate shape as a whole, and the front portion has a curved surface that is gently bent downward.

  As shown in FIGS. 2, 4, 5 A and the like, the width of the seating portion 21 in the left-right direction is wide at the back and the front at the stepped portion 47 formed toward the front on both the left and right sides. It is narrowly formed. Hereinafter, a region behind the stepped portion 47 in the seating portion 21 is referred to as a wide portion 49. The stepped portion 47 is inclined so as to protrude forward as viewed from the left and right sides.

  As shown in FIG. 3 and FIG. 5D, the backup resin 22 is a substantially rectangular frame-shaped member, and includes a pair of horizontal frame portions 23 disposed along the left and right edges of the seat portion 21, and a seat portion. The rear frame portion 24 is disposed along the rear edge of the pair 21 and connects the rear ends of the pair of horizontal frame portions 23. The rear frame portion 24 is disposed along the front edge of the seat portion 21. And a front frame portion 25 that connects the front portions to each other.

  The front frame portion 25 is formed so as to extend leftward and rightward at the front end portion of the seat body 11, and has a front hanging portion 26 whose front end is inclined downward. The front portion of the seating portion 21 forms a curved surface along the front hanging portion 26. The forward direction is an example of a first direction in the present disclosure, and the left-right direction is an example of a second direction that intersects the first direction.

A plurality of slits 63 are formed in the front hanging portion 26. Each of the plurality of slits 63 has a length in the front-rear direction, and is arranged side by side.
An opening 27 is formed in the center of the backup resin 22. The center here means the central portion when the backup resin 22 is regarded as a frame, that is, the inside of the frame. The backup resin 22 is fixed to the seating portion 21 in a state where it is superimposed on the lower surface of the seating portion 21. The entire opening 27 is covered with the seating portion 21.

  The backup resin 22 is formed of a member having higher rigidity than the elastomer constituting the seat portion 21. As the backup resin 22, for example, an olefin resin such as polypropylene, a synthetic resin such as polyamide, a fiber reinforced plastic added with glass fiber or carbon fiber, or a material other than a resin such as metal or wood can be used. It is not limited to these.

  The seat part 21 and the backup resin 22 are integrally formed by two-color molding. Specifically, for example, the mold side is exchanged with one injection molding machine, and the seating portion 21 and the backup resin 22 are sequentially molded in sequence, or the molded backup resin 22 is placed in the mold. For example, a step of setting the seating portion 21 and setting the seating portion 21 can be considered. When a metal member other than a resin is used instead of the backup resin, it can be integrally formed by the latter process, so-called insert molding.

  As shown in FIG. 5A, the seating portion 21 completely covers the backup resin 22 when viewed from above. The front hanging part 26 is also entirely covered with an elastomer. As shown in FIG. 5C, the elastomer has entered the slit 63. This backup resin 22 is an example of the first fixing portion in the present disclosure.

  As shown in FIGS. 6B and 6C, the horizontal frame portion 23 is formed so as to be accommodated in an upwardly recessed groove portion 71 formed in the vicinity of the left and right edges of the seating portion 21. The groove portion 71 is bent at an end portion in the left-right direction of the seat portion 21 and extends downward, and an inner wall 73 that is a downward protrusion formed at a position spaced from the end portion. The horizontal frame portion 23 arranged inside the groove portion 71 has a positional relationship sandwiched from the left and right by the end wall 72 and the inner wall 73.

  The horizontal frame portion 23 is formed with a protruding portion 28 that protrudes downward. As shown in FIG. 6B, the screw hole 58 is formed in the protruding portion 28. The screw hole 58 is formed at a position corresponding to the through hole 57 in the side portion 55 of the seat plate receiving portion 34.

  Further, as shown in FIG. 6C, a groove 29 that is depressed downward is formed in a portion of the horizontal frame portion 23 where the screw hole 58 is not formed. A protrusion 75 provided on the seating portion 21 is inserted into the groove portion 29.

  As shown in FIG. 6D, the backup resin 22 and the side portion 55 are fixed by inserting the screw member 65 into the through hole 57 of the side portion 55 of the seat plate receiving portion 34 and fastening the screw member 58. It is realized with. When the backup resin 22 and the seat plate receiving portion 34 are fixed, the lower end of the protruding portion 28 abuts on the upper side surface of the side portion 55. The screw member 65 is an example of a predetermined fixing member in the present disclosure.

  In this state, as shown in FIGS. 1D and 4, the wide portion 49 of the seating portion 21 covers not only the backup resin 22 but also the thin portion 52 of the upper column 44 from above. In other words, in the range in which the wide portion 49 behind the step portion 47 is formed in the front-rear direction, the seat portion 21 covers the thin portion 52 and the side portion 55 from above and is seen from above in the entire region in the left-right direction. And the thin part 52 and the side part 55 cannot be visually recognized.

In the upper column 44, the thick portion 51 is disposed on the outer periphery of the seat body 11, and the seat portion 21 is disposed at a position not lined up in the thickness direction of the seat body 11.
[1-4. effect]
According to the embodiment detailed above, the following effects can be obtained.

  (1A) In the chair 1, since the backup resin 22 is a member having higher rigidity than the seating portion 21, the backup resin 22 and the seat plate receiving portion 34 can be firmly fixed by the screw member 65. Therefore, it can be securely attached to the support 15 of the seat 11.

  (1B) In the chair 1, since the seat part 11 and the backup resin 22 including the elastomer are integrally formed by two-color molding in the chair 1, there is a risk that the seat part 21 and the backup resin 22 are separated. Can be reduced.

  (1C) In the chair 1, since the backup resin 22 has a frame shape arranged along the edge of the seating portion 21, deformation of the edge portion of the seating portion 21 can be suppressed. Further, since the elastic deformation of the seating portion 21 is ensured by the opening 27 of the backup resin 22, it is possible to suppress the sitting comfort from being lowered by the backup resin 22.

  (1D) In the chair 1, since the backup resin 22 is stacked on the lower side of the seating portion 21, it is difficult for the backup resin 22 to contact the user who is seated. Therefore, it can suppress that a user's seating comfort falls by contact | abutting to the metal support body 15. FIG.

  (1E) The chair 1 can improve the sitting comfort because the backup resin 22 has the front hanging portion 26. Moreover, since the front drooping part 26 is covered with the seating part 21, it can suppress that a user contacts the relatively hard backup resin 22 and receives discomfort.

  (1F) In the chair 1, since the wide part 49 of the seating part 21 covers the thin part 52 from the upper side, it can suppress that a user touches the support body 15 directly, and can improve a user's sitting comfort. .

[2. Other Embodiments]
Although the embodiment of the present disclosure has been described above, the present disclosure is not limited to the embodiment described above, and it is needless to say that various forms can be taken as long as they belong to the technical scope of the present disclosure.

  (2A) In the above embodiment, the configuration in which the backup resin 22 has a frame shape has been illustrated. However, the shape and arrangement of the backup resin may be in various forms as long as the fixing with the support 15 can be achieved. it can. For example, the backup resin may be provided only at a position where the female screw is to be formed instead of the frame shape. Further, the backup resin may have a configuration in which the front hanging portion 26 is not provided. Further, the backup resin may have a configuration in which the opening 27 is not provided. Further, as shown in FIG. 7, the protruding portion 28 may be positioned on the left and right center side of the horizontal frame portion 23 so as not to contact the inner wall 73.

  (2B) The material and shape of each component of the chair 1 are not limited to those described in the above embodiment, and various configurations can be adopted. For example, although the pipe body 31 illustrated the tubular member, it may be a columnar member.

  (2C) In the above embodiment, the screw member 65 is exemplified as the fixing member. However, any member other than a screw may be used as long as the backup resin 22 and the seat plate receiving portion 34 can be fixed. For example, the structure which fixes using a rivet or a clip as a fixing member may be sufficient. Further, a tapping screw that does not require a female screw may be used as the screw. If the target to which the tapping screw is attached is the highly rigid backup resin 22, the tapping screw can be prevented from falling off.

  (2D) In the above-described embodiment, the seat body 11 has exemplified the configuration in which the seat portion 21 and the backup resin 22 are integrally molded by two-color molding. However, the seating portion 21 and the backup resin 22 may be integrally formed by a method other than two-color molding, or they are not integrally molded, and may be fixed by an adhesive or other fixing parts. Good.

  (2E) In the above embodiment, the configuration in which the female screw is formed in the backup resin 22 is exemplified, but the backup resin may include a component having a female screw such as a nut. For example, it can be considered that the nut is disposed in the backup resin by insert molding.

  (2F) In the above embodiment, the configuration in which the upper side surface of the backup resin 22 is completely covered by the seating portion 21, in other words, the configuration in which the backup resin 22 is disposed below the seating portion 21 is exemplified. A part or all of may be configured not to be covered by the seating portion 21 from above.

  (2G) In the above embodiment, the configuration in which the wide portion 49 of the seating portion 21 covers a part of the upper column 44 from the upper side is exemplified, but the upper column 44 may be configured not to be covered by the seating portion 21. However, the seat portion 21 may be configured to cover the entire upper column 44 including the thick portion 51.

  (2F) In the above embodiment, the configuration in which the elastomer enters the slit 63 is illustrated, but the configuration in which the elastomer does not enter the slit 63 may be used. In addition, when the elastomer enters the inside of the slit 63, the seating portion 21 and the backup resin 22 can be firmly fixed.

  Further, the elastomer may be configured to pass through the slit and cover the lower surface of the front hanging portion 26. For example, as shown in FIG. 8A, the slit 91 has an extended portion 92 whose width is widened on the lower surface, and a covering portion 93 that covers the lower surface of the front hanging portion 26 among the elastomer of the seating portion 21. May be configured to cover at least a part of the periphery of the slit 91 from below by entering the expanded portion 92.

Further, as shown in FIG. 8B, the covering portion 94 may be configured to cover the lower surface of the front end portion of the front hanging portion 26.
Further, as shown in FIG. 8C, the covering portion 95 may be configured to widely cover the lower surface of the front hanging portion 26.

DESCRIPTION OF SYMBOLS 1 ... Chair, 11 ... Seating body, 15 ... Support body, 17 ... Leg end part, 21 ... Seating part, 21a ... Seating surface, 22 ... Backup resin, 23 ... Horizontal frame part, 24 ... Rear frame part, 25 ... Front Frame part, 26 ... front hanging part, 27 ... opening, 28 ... projecting part, 29 ... groove part, 31 ... pipe body, 32 ... front side connection part, 33 ... rear side connection part, 34 ... seat plate receiving part, 41 ... front pillar , 42 ... rear pillar, 43 ... lower pillar, 44 ... upper pillar, 46 ... bent part, 47 ... step part, 49 ... wide part, 51 ... thick part, 52 ... thin part, 53 ... concave part, 55 ... side Part 56 ... front part 57 57 through hole 58 screw hole 63 slit 65 screw member 71 groove part 72 end wall 73 inner wall 75 protrusion 91 slit 92 ... Extension part, 93-95 ... Covering part

Claims (7)

A sitting body,
A support for supporting the seat body,
The seat is
Constituting a seating surface, and at least a seating portion formed of an elastomer;
A first fixing part that is fixed to the seating part and formed of a member having higher rigidity than the seating part,
The support includes a second fixing portion,
A chair in which the seat and the support are fixed by fixing the first fixing portion and the second fixing portion with a predetermined fixing member. The chair according to claim 1,
The seating portion and the first fixing portion are integrally molded as a chair. The chair according to claim 1 or 2,
The first fixing portion is a chair that is formed along at least a part of an edge of the seating portion in a state of being superimposed on a lower surface of the seating portion. The chair according to any one of claims 1 to 3,
The first fixing portion is a chair that is a frame-shaped member that is formed along an edge of the seating portion and that forms an opening at the center. The chair according to any one of claims 1 to 4,
The fixing member is a member having a male screw,
The first fixing portion has a female screw that is fastened to the male screw,
A through hole into which the male screw can be inserted is formed in the second fixing portion,
A chair, in which the first fixing portion and the second fixing portion are fixed by inserting the male screw into the through hole and fastening the male screw. The chair according to any one of claims 1 to 5,
The first fixing portion is formed to extend in a second direction intersecting the first direction at an end portion in the first direction of the seat body, and the end portion in the first direction is inclined downward. A chair with a front sag. The chair according to any one of claims 1 to 6,
The support has an edge member that is a tubular or columnar member disposed along at least a part of the edge of the seat portion,
The seat is a chair configured such that the seating portion covers at least a part of the edge member from above.