chair

Abstract

To provide a chair having a constitution in which a seat cover is simply attachable to / detachable from a seat body.SOLUTION: In a chair having a seat supported by a support frame, the seat includes a seat body, and a seat cover E attached to the seat body D, and the seat cover E includes a seat cover body 7, and a connector 8 having a body part 81 which is a belt-like member attached to one end part of the seat cover body 7, and one end part of the seat body corresponding to the connector 8 is provided with an attachment part to which the connector 8 is attached.SELECTED DRAWING: Figure 17

Description

Technical Field

[0002]

[0001] The present invention relates to a chair.

Background Art

[0002] Conventionally, a chair having a seat with a seat cushioning material disposed therein has been known (see, for example, Patent Document 1).

[0003] Some seats of this type of chair are configured to cover the upper and outer portions of the seat body with a seat cover.

[0004] However, in the conventional ones, it has been difficult to easily attach or detach the seat cover to / from the seat body.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0009] The invention described in claim 2 is the chair according to claim 1, wherein the seat body comprises a seat base made of synthetic resin and a seat cushion supported on the seat base, and the mounting portion is provided on the seat base.

[0010] The invention described in claim 3 is characterized in that the mounting portion comprises a recessed portion in which a recessed space is formed, and the connecting portion Ingredients The chair according to claim 2, comprising an engaging portion provided in or near the recessed portion so as to be in relation to the recessed space and facing the recessed space.

[0011] The invention described in claim 4 is the chair according to claim 3, wherein the engaging portion extends in the left-right direction and is mounted on the recessed portion.

[0014] Claim 5 The invention described is a chair according to claim 3, wherein the connector comprises a main body that is strip-shaped and can form an annular portion that engages with the engagement portion, and fastening means for fastening predetermined locations of the main body to form the annular portion.

[0015] Claim 6 The invention described herein is the claim that the fastening means is a snap button. 5 This is the chair described. [Effects of the Invention]

[0019] As described above, the present invention provides a chair with a suitable configuration that allows the seat cover to be easily attached to and detached from the seat body. [Brief explanation of the drawing]

[0020] [Figure 1] Perspective view showing one embodiment of the present invention. [Figure 2] Front view of the same embodiment. [Figure 3] Rear view of the same embodiment. [Figure 4] Right side view of the same embodiment. [Figure 5] Plan view of the same embodiment. [Figure 6] Bottom view of the same embodiment. [Figure 7] Perspective view of the same embodiment. [Figure 8] Perspective view of the same embodiment. [Figure 9] Cross-sectional view taken along the line X-X in FIG. 5. [Figure 10] Cross-sectional view taken along the line Y-Y in FIG. 5. [Figure 11] Exploded perspective view of the same embodiment. [Figure 12] Exploded perspective view of the same embodiment. <00001O0><00001O1>Bottom view of the seat base in the same embodiment. [Figure 14] Perspective view of the seat base in the same embodiment. [Figure 15] Bottom view of the seat body in the same embodiment. [Figure 16] Bottom view of the seat in the same embodiment. [Figure 17] Bottom view of the seat cover in the same embodiment. [Figure 18] Right side view showing the stacking state in the same embodiment.

Mode for Carrying Out the Invention

[0021] Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 18.

[0022] The chair comprises a support frame A, a seat B supported by the support frame A, an armrest G supported by the support frame A, and a backrest H supported by the support frame A via the armrest G.

[0023] As shown in Figure 18, the chair is designed so that multiple chairs of the same structure can be stacked vertically.

[0024] <<Support Frame A>> Support frame A is made of metal pipe material.

[0025] The support frame A comprises a pair of front leg frame sections 1 on the left and right, a pair of rear leg frame sections 2 on the left and right, and a seat support frame section 3 connected to the front and rear leg frame sections 1 and 2.

[0026] <Front leg frame section 1> The front leg frame section 1 extends in a substantially straight line in the vertical direction. The front leg frame section 1 is tilted backward when viewed from the side. That is, the front leg frame section 1 is configured to be positioned gradually towards the rear when viewed from the side, with respect to the upward direction.

[0027] The front leg frame section 1 is positioned inward from the rear leg frame section 2 in both front and rear views.

[0028] A caster C is provided at the lower end of the front leg frame 1. However, the chair may also be configured without a caster C at the lower end of the front leg frame 1.

[0029] <Rear leg frame section 2> The rear leg frame section 2 extends in a substantially straight line in the vertical direction. The rear leg frame section 2 is tilted forward when viewed from the side. That is, the rear leg frame section 2 is configured to be positioned gradually forward as it moves upward when viewed from the side.

[0030] The rear leg frame section 2 is positioned further outward than the front leg frame section 1 in both front and rear views.

[0031] A caster C is provided at the lower end of the rear leg frame 2. However, the chair may also be configured without a caster C at the lower end of the rear leg frame 2.

[0032] The rear leg frame section 2 extends longer upward than the front leg frame section 1, and its upper end 2t is positioned above the seat B. The frame connection section g1, which is provided at the front end of the armrest G, is fitted onto the upper end 2t of the rear leg frame section 2 and secured by a screw v1.

[0033] <Seat support frame part 3> The seat support frame section 3 connects the front and rear leg frame sections 1 and 2 and is positioned beneath the seat B, forming a roughly H-shape overall.

[0034] The seat support frame section 3 comprises a front seat support frame section 31 connected to the front leg frame section 1 and extending in the left-right direction, a rear seat support frame section 32 connected to the rear leg frame section 2 and extending in the left-right direction, and a central seat support frame section 33 located in the center in the left-right direction and extending in the front-rear direction, connecting the front seat support frame section 31 and the rear seat support frame section 32.

[0035] In this embodiment, the seat support frame portion 3 is constructed by welding together a pair of left and right frame members F that are roughly U-shaped and facing outwards.

[0036] The front outer ends of the left and right frame members F are integrally connected to the front leg frame section 1. The rear outer ends of the left and right frame members F are welded to the inner part of the vertically intermediate section of the rear leg frame section 2. The inner ends of the left and right frame members F, that is, the inner ends of the portions that extend longitudinally in the front-rear direction, are rigidly connected by welding.

[0037] [Front seat support frame portion 31] The front seat support frame portion 31 extends substantially horizontally in the left-right direction and is positioned in front of the left and right bulging portions 42 of the seat base 4.

[0038] The front seat support frame portion 31 interacts with a movement restricting portion 43 provided at the front of the seat base 4, thereby restricting its relative downward movement with respect to the seat base 4.

[0039] Furthermore, the front seat support frame portion 31 does not have screw insertion holes. In this embodiment, the front seat support frame portion 31 is configured not to require screws to be fastened to the seat base 4.

[0040] [Rear seat support frame portion 32] The rear seat support frame portion 32 extends substantially horizontally in the left-right direction and is positioned behind the left and right bulging portions 42 of the seat base 4.

[0041] The rear seat support frame portion 32 is positioned in front of the outer wall portion 44, which is located at the rear of the seat base 4.

[0042] The rear seat support frame portion 32 is provided with two screw insertion holes h on the left and right sides, which penetrate vertically. The rear seat support frame portion 32 is screwed onto the nut portion n provided on the seat base 4 by screws v2 inserted through the screw insertion holes h.

[0043] [Central seat support frame portion 33] The central seat support frame portion 33 extends substantially horizontally in the front-rear direction and is positioned between the left bulge 42 and the right bulge 42 of the seat base 4.

[0044] The central seat support frame section 33 is composed of two pipe members that extend in the front-to-back direction and are arranged side by side.

[0045] Furthermore, the central seat support frame portion 33 does not have screw insertion holes. In this embodiment, the central seat support frame portion 33 is configured not to require screws to be fastened to the seat base 4.

[0046] <<Location B>> Seat B has a roughly rectangular shape in plan view. The rear end of seat B has a gently curved shape that is convex towards the rear. Seat B consists of a seat body D and a seat cover E attached to the seat body D.

[0047] <Seat body D> The seat body D comprises a seat base 4 made of synthetic resin, a seat cushion 5 supported by the seat base 4, and an inner cover 6 that covers the upper and outer parts of the seat cushion 5.

[0048] [Seat Base 4] The seat base 4 is a molded synthetic resin product supported by the seat support frame 3. The seat base 4 has a recessed portion J on its lower side that is open downwards and recessed upwards, so as to accommodate the seat support frame 3.

[0049] The seat base 4 is provided with a mounting portion R at a position corresponding to the connector 8 of the seat cover E, to which the connector 8 can be attached.

[0050] The seat base 4 comprises a base body portion 41 having a mounting portion on its upper side on which the seat cushion 5 is placed and a downward portion 41s on its lower side that can engage with the seat support frame portion 3; left and right bulging portions 42 provided in pairs on the left and right and bulging downward from the base body portion 41; movement restricting portions 43 disposed in front of the left and right bulging portions 42 and engaging with the front seat support frame portion 31 that constitutes the seat support frame portion 3 to restrict the relative downward movement of the front seat support frame portion 31; and an outer wall portion 44 disposed behind the left and right bulging portions 42.

[0051] The base body portion 41 serves as the base. The seat cushion 5 is placed on the upper side of the base body portion 41. The base body portion 41 has downward-facing portions 41s that are positioned above the lower surfaces 42s of the left and right bulging portions 42. The seat support frame portion 3 engages with the downward-facing portions 41s of the base body portion 41.

[0052] The downward-facing portion 41s of the base body 41 is roughly H-shaped when viewed from below, corresponding to the shape of the seating frame 3. The downward-facing portion 41s of the base body 41 is provided with nut portions n at two locations on the left and right sides, located behind the left and right bulging portions 42.

[0053] The nut portion n is composed of a metal plate nut (not shown). The nut portion n is provided only at two locations behind the left and right bulging portions 42. That is, the nut portion n is provided only on the downward-facing portion 41s which is located behind the left and right bulging portions 42 and in front of the outer wall portion 44. A screw v2, which is inserted through a screw insertion hole h provided in the rear seating frame portion 32, is screwed into the nut portion n.

[0054] The base body portion 41 is provided with a flange-shaped portion 41t at its periphery, which supports the periphery of the seat cushion 5. The flange-shaped portion 41t extends outward from the upper edge of the upright wall i1 that positions the edge portion 6e of the inner cover 6. A support wall 41h that can engage with the seat cushion 5 is erected at the edge of the flange-shaped portion 41t.

[0055] The peripheral edge of the base body portion 41 is provided with a positioning means I for positioning the edge portion 6e of the inner cover 6, located inside the flange-shaped portion 41t. The positioning means I can position the edge portion 6e by restricting the inward and downward movement of the string-fastened edge portion 6e provided on the inner cover 6.

[0056] The positioning means I comprises an upright wall i1 having an upright surface m facing outward, and a plurality of protrusions i2 projecting outward from the upright wall i1.

[0057] The upright wall i1 is provided across the entire peripheral area of ​​the base body portion 41. The upright wall i1 is located outside the left and right bulging portions 42, the movement restricting portion 43, and the outer wall portion 44.

[0058] Multiple protrusions i2 are arranged on the upright wall i1 at regular intervals. In this embodiment, roughly rectangular piece-shaped protrusions i2 are arranged at three locations on the periphery of the base body portion 41, namely at both left and right ends of the central part in the front-rear direction of the base body portion 41, and at the rear end of the central part in the left-right direction. At the protruding ends of the three rectangular piece-shaped protrusions i2, detachment-restricting protrusions p are erected upward to prevent the detachment of the edge portion 6e of the inner cover 6.

[0059] Furthermore, projections i2, which are roughly triangular in shape, are provided at five locations on the periphery of the base body portion 41, namely at the four corners of the base body portion 41 which is rectangular overall, and at the front end of the central part in the left-right direction.

[0060] The left and right bulges 42 are provided symmetrically. The left and right bulges 42 each have a roughly rectangular shape with their longitudinal side in the front-to-back direction when viewed from the bottom. The inner edges of the left and right bulges 42 follow the central seat support frame portion 33 that constitutes the seat support frame portion 3, the front edges of the left and right bulges 42 follow the front seat support frame portion 31 that constitutes the seat support frame portion 3, and the rear edges of the left and right bulges 42 follow the rear seat support frame portion 32 that constitutes the seat support frame portion 3.

[0061] The movement restricting section 43 is positioned in front of the left and right bulging sections 42. The movement restricting section 43 comprises an upright wall-like portion 43a projecting downward from the base body 41, and an extended wall 43b extending cantilevered from the lower end of the upright wall-like portion 43a toward the left and right bulging sections 42, i.e., toward the rear.

[0062] The extension wall 43b engages with the lower surface of the front seat support frame portion 31, thereby restricting the relative movement of the front seat support frame portion 31 and the seat base 4 in the direction away from each other.

[0063] The outer wall portion 44 is positioned outside, i.e., behind, the downward-facing portion 41s on which the nut portion n is provided. The rear part of the outer wall portion 44 has a curved shape that is convex towards the rear when viewed from below.

[0064] The outer wall portion 44 protrudes downward from the base body portion 41 so as to follow the outside of the rear seat support frame portion 32 that constitutes the seat support frame portion 3. The outer wall portion 44, which is located at the rear of the seat base 4, is provided with a mounting portion R to which the connector 8 provided on the seat cover E is attached.

[0065] The mounting sections R are provided in pairs on the left and right, corresponding to the pair of connectors 8 provided on the seat cover E. That is, the two mounting sections R are arranged on the outer wall section 44 with a gap between them on the left and right.

[0066] The mounting portion R comprises a recessed portion r1 in which a recessed space rs is formed, and an engaging portion r2 extending in the left-right direction and mounted on the recessed portion r1 so as to face the recessed space rs. The annular portion 81c formed on the main body portion 81 of the connector 8 engages with the engaging portion r2.

[0067] Furthermore, the edges 7e of the seat cover body 7 attached to the seat body D come into contact with or are close to the left and right bulging portions 42, the movement restricting portions 43, and the outer surfaces near the base ends of the outer wall portion 44 of the seat base 4.

[0068] The seat base 4, having the above configuration, has a recessed portion J formed therein, which is roughly H-shaped when viewed from below and capable of accommodating the seat support frame portion 3. The recessed portion J is open downwards. The recessed portion J has a shape that is recessed upwards, forming an H-shape.

[0069] The recessed portion J includes a first recessed portion j1 ​​extending in the front-rear direction, provided between the left and right bulging portions 42 and capable of accommodating the central seating frame portion 33, which is part of the seating frame portion 3; a second recessed portion j2 extending in the left-right direction, provided between the left and right bulging portions 42 and the movement restricting portion 43 and capable of accommodating the front seating frame portion 31, which is part of the seating frame portion 3; and a third recessed portion j3 extending in the left-right direction, provided between the left and right bulging portions 42 and the outer wall portion 44 and capable of accommodating the rear seating frame portion 32, which is part of the seating frame portion 3.

[0070] The recessed portion J is designed to accommodate the seating frame portion 3 within the recessed space so that it does not protrude below the lower ends of the left and right bulging portions 42, the movement restricting portions 43, and the outer wall portion 44.

[0071] As shown in Figure 18, in this embodiment, when the chair is stacked vertically with other chairs of the same structure, the left and right bulging portions 42, movement restricting portions 43, and outer wall portions 44 that constitute the seat base 4 come into contact with the upper surface of the seat B of the other chair, with priority given to contact over the seat support frame portion 3.

[0072] [Seat cushion 5] The seat cushion 5 is primarily made of polyurethane foam. The underside of the seat cushion 5 is attached to the upper side of the seat base 4, where multiple ribs rb are exposed.

[0073] [Inner cover 6] The inner cover 6 is primarily for protecting the seat cushion 5. The inner cover 6 is provided to enclose the top and sides of the seat cushion 5, as well as the underside of the flange-shaped portion 41t of the seat base 4.

[0074] The inner cover 6 is mainly made of nonwoven fabric, which has a certain degree of rigidity while also contributing to weight reduction. The inner cover 6 is in the shape of a bag with the bottom side open.

[0075] The inner cover 6 is located on the underside of the seat body D and has a continuous edge portion 6e that forms a roughly annular shape. The roughly annular edge portion 6e is narrowed in a direction that reduces its diameter by a string member (not shown). The edge portion 6e is positioned by engaging with the upright wall i1 and projection i2 provided on the seat base 4.

[0076] <Seat cover E> The seat cover E is intended to give the seat B a desirable appearance. The seat cover E is attached to the outside of the seat body D.

[0077] The seat cover E can cover the seat cushion 5 which is covered by the inner cover 6, and can also cover the positioning means I provided on the seat base 4 and the edge portion 6e of the inner cover 6 positioned by the positioning means I so that they are not visible from the outside.

[0078] The seat cover E comprises a seat cover body 7 that covers the upper and outer parts of the seat body D, i.e., the top surface, side surfaces, and lower surface of the peripheral edges of the seat body D, and a connector 8 having a main body portion 81 which is a strip-shaped member attached to one end of the seat cover body 7, i.e., the rear.

[0079] [Seat cover body 7] The seat cover body 7 is mainly made of fabric. The seat cover body 7 is bag-shaped with an open bottom. The seat cover body 7 is located on the underside of the seat body D and has a continuous edge portion 7e that forms a roughly annular shape. At least a part of the edge portion 7e of the seat cover body 7 is provided with a rubber member, which is an expandable and contractible member that can expand and contract the edge portion 7e.

[0080] The edge portion 7e of the seat cover body 7 is located on the underside of the peripheral edge of the seat body D. When the seat cover body 7 is attached to the seat body D, the edge portion 7e of the seat cover body 7 is biased in a direction of contraction by the rubber member 71, which is an expandable / contractible member.

[0081] In this embodiment, the expandable rubber member 71 is provided only on a portion of the edge portion 7e corresponding to the corner portions located on the left and right sides of the other end of the seat body D, i.e., the front end.

[0082] [Connector 8] The connector 8 comprises a main body 81 which is strip-shaped and can form an annular portion 81c that engages with an engaging portion r2 provided on the mounting portion R of the seat base 4, and a snap button 82 which is a fastening means for fastening predetermined parts of the main body 81 together in order to form the annular portion 81c.

[0083] The main body portion 81 is a strip made of fabric. The main body portion 81 is set to have a longitudinal dimension that can engage with the engaging portion r2 of the mounting portion R, and a width dimension that can be inserted into the recessed portion r1 of the mounting portion R.

[0084] The snap button 82 is of a known configuration using a pair of snap button components that can be engaged and disengaged. The snap button 82 is capable of holding an annular portion 81c formed by wrapping a part of the main body 81 around the engaging portion r2.

[0085] <<Regarding the attachment of the seat cover E to the seat body D>> The procedure for attaching the seat cover E to the seat body D is, for example, carried out as follows:

[0086] First, the seat body D is prepared. At this time, the seat cushion 5 is covered by an inner cover 6, and the edge portion 6e of the inner cover 6 is positioned so as not to move toward the center of the seat base 4 by a positioning means I provided on the seat base 4.

[0087] Next, the connector 8 of the seat cover E is attached to the left and right mounting parts R provided on the outer wall portion 44 of the seat base 4. More specifically, the main body portion 81 of the connector 8 is surrounded by the engaging portion r2 of the mounting part R, and then the predetermined parts of the main body portion 81 are connected using snap buttons 82 to hold the annular portion 81c formed on the main body portion 81.

[0088] Next, the rear part of the seat cover body 7 is placed over the rear part of the seat body D. Note that the rear edge portion 7e of the seat cover body 7 does not have a rubber member 71.

[0089] Subsequently, the front part of the seat cover body 7 is placed over the front part of the seat body D. A rubber member 71 is provided on the edge portion 7e located at the front of the cover body 7, corresponding to the front corners of the seat body D. Therefore, the process of attaching the front part of the cover body 7 to the seat body D is performed by temporarily stretching the edge portion 7e with the rubber member 71 located at the front of the cover body 7.

[0090] Following the above steps, the seat cover E is attached to the seat body D.

[0091] <<Regarding the attachment of seat B to seat support frame 3>> The procedure for attaching the seat B to the seat support frame 3 in the support frame A is, for example, carried out as follows.

[0092] First, the seat B is moved so that the front seat support frame 3 is positioned within the second recess j2 provided in the seat base 4.

[0093] Next, the front end of the front seat support frame portion 3, which is located within the second recess j2, is engaged with the movement restricting portion 43, and the seat B is rotated around the front seat support frame portion 3 so that the central seat support frame portion 33 and the rear seat support frame portion 32 are housed in the first recess j1 and the third recess j3.

[0094] As a result, the entire seat support frame portion 3 is fitted into the recessed portion J, restricting the relative movement of the seat B and the seat support frame portion 3 in the front-rear and left-right directions. At this time, the front seat support frame portion 31 is also restricted from moving downward by the movement restricting portion 43.

[0095] Finally, the rear seat support frame portion 32 is screwed onto the nut portion n provided on the base body portion 41 using a screw v2. In this embodiment, since the front seat support frame portion 31 is restricted from moving downward by the movement restricting portion 43, the seat B can be fixed to the seat support frame portion 3 simply by screwing the rear seat support frame portion 32 to the seat base 4.

[0096] Through the above procedure, seat B is attached to the seat support frame portion 3 of support frame A.

[0097] <<Armrest G>> The armrest G comprises a cylindrical frame connection portion g1 located at the front end and open downwards, a wall-like portion g2 extending rearward from the rear end of the frame connection portion g1, and an armrest portion g3 having an elbow rest surface that is longitudinal in the front-to-back direction and connected to the upper ends of the frame connection portion g1 and the wall-like portion g2.

[0098] The front-to-back dimension of the armrest G is set to be relatively short. The chair connects the front part of the armrest G, which is the frame connection part g1, to the upper ends 2t of the left and right rear legs of the support frame A.

[0099] <<Backrest H>> The backrest H is connected to the rear end of the armrest G. The backrest H is indirectly supported by the support frame A via the armrest G.

[0100] As described above, the chair according to this embodiment has a seat B supported by a support frame A. The seat B comprises a seat body D and a seat cover E that covers the upper and outer parts of the seat body D. The seat cover E comprises a seat cover body 7 and a connector 8 having a main body portion 81 which is a strip-shaped member attached near the rear end edge portion 7e, which is one end of the seat cover body 7. A mounting portion R is provided at the rear end of the seat body D, which is one end of the seat body D corresponding to the connector 8, to which the connector 8 is attached.

[0101] Therefore, this embodiment provides a chair with a suitable configuration that allows the seat cover E to be easily attached to and detached from the seat body D.

[0102] In other words, since the connector 8 of the seat cover body 7 is attached to one end of the seat body D, the operation of placing the seat cover body 7 over the seat body D and the operation of removing the seat cover body 7 from the seat body D can be conveniently performed using the connector 8 as a pivot point.

[0103] Furthermore, since the seat cover body 7 is connected to the seat body D via the connector 8, forward sliding of the seat cover body 7 relative to the seat body D can be effectively suppressed.

[0104] Furthermore, since the seat cover E is designed to be easily removable from the seat body D, it is extremely flexible to replace it with another seat cover E.

[0105] The seat body D comprises a seat base 4 made of synthetic resin and a seat cushion 5 supported by the seat base 4. A mounting portion R is provided on the seat base 4.

[0106] Therefore, the mounting portion R is provided on the seat base 4, which has excellent rigidity.

[0107] The mounting portion R comprises a recessed portion r1 in which a recessed space rs is formed, and an engaging portion r2 provided in the recessed portion r1 so as to engage with the connecting portion of the seat cover E and face the recessed space rs.

[0108] Therefore, the mounting portion R is designed to allow the connector 8 of the seat cover E to be attached appropriately.

[0109] The engaging portion r2 extends in the left-right direction and is installed in the recessed portion r1.

[0110] Therefore, the connector 8 of the seat cover E can be suitably attached to the engaging portion r2 installed in the recessed portion r1.

[0111] The mounting portion R is located at the rear of the seat base 4.

[0112] Therefore, the mounting portion R is positioned so that the connector 8 of the seat cover E is not easily visible from the outside.

[0113] Multiple mounting sections R are arranged at intervals on the left and right sides of the rear of the seat base 4.

[0114] Therefore, multiple connecting devices 8 can be attached to the seat cover E, allowing the seat cover body 7 to assume a stable position relative to the seat base 4.

[0115] The connector 8 comprises a main body 81 that is strip-shaped and can form an annular portion 81c that engages with the engagement portion r2, and fastening means for fastening predetermined points of the main body 81 together in order to form the annular portion 81c.

[0116] Therefore, the connector 8 can be suitably attached to the mounting portion R.

[0117] Since the fastening mechanism is a snap button 82, the main body 81 can be easily attached to and detached from the mounting part R.

[0118] The seat cover body 7 is located on the underside of the seat body D and has a continuous edge portion 7e that forms a substantially annular shape. A rubber member 71, which is an expandable and contractible member that can expand and contract the edge portion 7e, is provided only on at least a portion of the edge portion 7e of the seat cover body 7.

[0119] Therefore, the seat cover body 7 is configured to suitably cover the seat body D while suppressing the excessive application of the rubber member 71.

[0120] The expandable rubber member 71 is provided only on a portion of the edge portion 7e, which corresponds to the left and right corner portions located on the front end side of the seat body D.

[0121] Therefore, the seat cover body 7 is configured to suitably cover the seat body D by placing the rubber member 71 only on the edge portion 7e corresponding to the front corner portion of the seat body D, while suppressing the excessive application of the rubber member 71.

[0122] However, the present invention is not limited to the embodiments described in detail above.

[0123] The expandable member provided at the edge of the seat cover body is not limited to a rubber material.

[0124] The expandable member may be provided across the entire edge of the seat cover body.

[0127] The mounting part can be any part that constitutes the seat body, and is not limited to being located on the seat base.

[0128] The mounting portion is not limited to one in which the engaging portion is located in a recessed area, but may also be one in which the engaging portion is located near the recessed area.

[0130] The fastening means of the connector can be any means that can fasten predetermined points on the main body together to form an annular portion, and is not limited to snap buttons. For example, the fastening means may be a hook or a magnet.

[0131] Furthermore, the specific configuration of each part is not limited to the above embodiments, and various modifications are possible without departing from the spirit of the present invention. [Explanation of symbols]

[0132] A...Support frame B…za D…Seat body E... Seat cover 3...Seat support frame 4... Seat base 7... Seat cover body 8…Connector

Claims

1. A chair in which the seat is supported by a support frame, The aforementioned seat comprises a seat body and a seat cover attached to the seat body. The aforementioned seat cover comprises a seat cover body that covers the upper and outer parts of the seat body, and a connecting member having a strip-shaped member attached to the rear of the seat cover body. The aforementioned connectors are arranged in pairs on the rear of the seat cover body with a gap between them on the left and right, and corresponding to these connectors, mounting portions for attaching the connectors are provided on the rear of the seat body in pairs with a gap between them on the left and right. The seat cover body is located on the lower side of the seat body and has a continuous edge portion that forms a substantially annular shape, and an expandable / contractable member capable of expanding and contracting the edge portion is provided on at least a portion of this edge portion. A chair in which the aforementioned expandable member is provided on a portion of the edge portion corresponding to the left and right corner portions located at the front end of the seat body.

2. The aforementioned seat body comprises a seat base made of synthetic resin and a seat cushion supported by this seat base. The chair according to claim 1, wherein the mounting portion is provided on the seat base.

3. The chair according to claim 2, wherein the mounting portion comprises a recessed portion in which a recessed space is formed, and an engaging portion provided in or near the recessed portion so as to engage with the connector and face the recessed space.

4. The chair according to claim 3, wherein the engaging portion extends in the left-right direction and is installed in the recessed portion.

5. The chair according to claim 3, wherein the connector comprises a main body that is strip-shaped and can form an annular portion that engages with the engagement portion, and fastening means for fastening predetermined locations of the main body to form the annular portion.

6. The chair according to claim 5, wherein the fastening means is a snap button.

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