JP2009136568A - Chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chair which enables a plurality of depressions which are gathered and formed in the rear face of the seat to be covered altogether with common cap members and screws can be suitably driven in it. <P>SOLUTION: The chair 1 includes: a seat 2 having a nut N accessible from the rear face; a seat support 3 having a fastening part 322 fastened to the rear face of the seat 2 with a screw S; and cap members 6 capable of covering the screw S and the fastening part 322 from below, wherein the seat 2 has a plurality of assembled depressions 221, 222, 223 on the rear face and can contain the fastening part 322 in the first depression 221 having the nut N, the cap member 6 has a plurality of covering parts 61, 62, 63 capable of covering the plurality of depressions 221, 222, 223, then, among the plurality of covering parts 61, 62, 63, the first covering part 61 capable of covering the first depression 221 containing the fastening part 322 is composed with a window 611 which exposes the first depression 221 and an opening/closing part 612 capable of opening/closing the window 611. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a chair, particularly a chair in which a seat and a seat support are fixed to each other using screws.

  Conventionally, a chair is known in which a seat and a seat support that supports the seat are fixed to each other using screws. Specifically, a recessed portion recessed from the peripheral portion is provided on the back surface of the seat, and a screw hole provided in the recessed portion is accommodated in this recessed portion, for example, a tongue-shaped fastening portion provided on the seat support body. There is known a mode in which the seat support is fastened to the back surface of the seat by fastening the screw together with the fastening portion. And in order to prevent that a screw and a fastening part are exposed, the cap member which coat | covers a recessed part is attached to the back surface of a seat.

  Note that the above-described conventional techniques are appropriately implemented in the field, and none are disclosed as patent documents.

  By the way, in order to increase the fastening location between the seat support and the seat, or to give various functions to the seat, a mode in which a plurality of concave portions are provided in a predetermined region on the back surface of the seat is also conceivable.

  When such an aspect is adopted, if these recesses can be covered with a common cap member, the labor for attaching the cap member to the seat can be reduced as compared with the case where each recess is covered with a separate cap member. can do.

  On the other hand, if the recess is covered with a common cap member after the seat support is fastened to the back surface of the seat, the cap member must have a shape that bypasses the seat support, and is simple. The problem that it cannot be made into a substantially flat thing arises.

  On the other hand, when the cap member is a simple substantially flat plate, in order to avoid interference with the seat support, the cap member is placed on the back surface of the seat before the fastening portion of the seat support is received in the recess. It is necessary to install. However, when a simple flat cap member is attached to the back surface of the seat before the fastening portion of the seat support is received in the recess, all the recesses are covered, so that the fastening portion is stored in the recess. A fatal problem that the seat and the seat support cannot be fastened.

  Therefore, a simple flat cap member is provided with a receiving portion that can be stored in one recess, and further, an insertion hole through which a screw can be inserted is formed in the receiving portion, and the receiving portion is stored in the recess. It is also conceivable that the seat support is fastened to the seat by accommodating the fastening portion of the seat support in the recess and tightening the screw from the fastening portion side in this state.

  However, since the accommodated portion of the cap member is interposed between the recessed portion of the seat and the fastening portion of the seat support, if the tightening operation is performed in this state, the accommodated portion is made of resin. If this occurs, the screw may be loosened, resulting in a problem that a strong tightening state cannot be maintained.

  The present invention has been made paying attention to such a problem, and the main object is to cover all of the plurality of concave portions formed on the back surface of the seat with a common cap member, and screw. It is an object of the present invention to provide a chair that can suitably perform the tightening operation and does not adversely affect the tightening strength.

  That is, the chair of the present invention includes a seat having a screw hole accessible from the back surface, a seat support having a fastening portion fastened with a screw to the back surface of the seat, and the screw and the fastening portion downward. A cap member that can be coated from a plurality of recesses in a predetermined region on the back surface, and the fastening portion can be accommodated in at least one recess having the screw hole. The cap member has a plurality of covering portions that can respectively cover the plurality of recessed portions, and a recessed portion in which the fastening portion is accommodated among the plurality of covering portions, that is, a screw can be screwed. The covering portion that can cover the concave portion having a screw hole is configured using a window portion that can expose the concave portion and an opening and closing portion that can open and close the window portion.

  If it is such, after attaching a cap member to the back of a seat, a fastening part can be stored in a crevice via an opened window part, and in this accommodation state via an opened window part Since the screw hole can be accessed, the fastening portion can be fastened to the back surface of the seat by screwing the screw into the screw hole. When the is attached, the problem that the screw hole cannot be accessed and the fastening operation itself cannot be performed can be solved. In addition, the plurality of recesses formed on the back surface of the seat can be all covered with the respective cover portions of the cap member, and the operation of covering each recess as compared with the embodiment in which each recess is covered with a separate cap member. Increases efficiency. In addition, after the tightening operation, by closing the window portion with the opening / closing portion, the screw and the fastening portion existing in the recess can be suitably covered, and a good appearance is exhibited.

  In particular, if the cap member is a resin molded product that integrally includes the plurality of covering portions, each cap member is compared with an embodiment in which the cap members are connected to each other via a connecting member. The trouble of connecting the parts to each other can be omitted, and the number of parts at the time of manufacture can be reduced, which contributes to simplification of the work of attaching the cap member to the seat.

  Further, if the fastening part is made of metal, the problem that may occur if the fastening part is made of resin, that is, the problem that the fastening part itself is crushed and deformed by the tightening operation of the screw is eliminated, and the Fastened state can be realized.

  In order to make it possible to intuitively grasp the opening and closing operation of the opening and closing part, and to be able to easily perform the opening and closing operation, the opening and closing part, with the hinge part provided at the connection part with the window part as an axis, What is necessary is just to be able to rotate between the open position which opens the said window part, and the closed position which can close the said window part.

  As a preferred embodiment of the seat support, there may be mentioned an embodiment provided with a metal frame main body disposed on the back surface of the seat and the fastening portion joined to the frame main body by welding. If it is such, while improving the attachment strength of a frame main body and a fastening part, compared with the aspect which attaches a frame main body and a fastening part by screwing, it is a group of a frame main body and a fastening part. Attaching work can be easily performed.

  In addition, the cap member is provided with an opening that opens continuously to the window, and at least a joint portion between the frame main body and the fastening portion is disposed in the opening. If interference with the joint portion can be avoided, a good covering state by the opening / closing portion can be realized without the opening / closing portion closing the window portion and the fastening portion interfering with each other.

  As described above, according to the present invention, it is possible to cover all the plurality of recesses formed by being assembled on the back surface of the seat with a common cap member, and it is possible to suitably perform a screw tightening operation, Can provide a chair that does not adversely affect the tightening strength.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the chair 1 according to this embodiment includes a seat 2, a seat support 3 that supports the seat 2, left and right armrests 4, and left and right end portions at the rear end portions of each armrest 4. The backrest 5 is supported.

  The seat 2 has a front end supported by a seat support 3 and a rear end suspended from a backrest 5. As shown in FIGS. 1 and 2 (FIG. 2 is a bottom view of the seat 2), the seat 2 includes a seat cushion 21 that forms a seat surface, and a back surface of the seat 2 that is provided below the seat cushion 21. And a pair of left and right joints 23 that can be joined to the lower end of the backrest 5.

  As shown in FIGS. 2 and 3 (FIG. 3 is a bottom view of the seat shell 22 as viewed from the direction of arrow A in FIG. 2), the seat shell 22 is an integrally molded product made of a synthetic resin and has a front end on the back surface. In the vicinity of the portion, a recessed portion collecting region 22A is provided in which a plurality of recessed portions (first recessed portion 221, second recessed portion 222, third recessed portion 223) are assembled. In the present embodiment, the recessed portion collecting area 22A is provided in a pair of left and right.

  As shown in FIG. 3, the recessed portion collecting region 22 </ b> A has a first recessed portion 221 for attaching the seat shell 22 and the seat support 3, and continues to the first recessed portion 221 and extends along the front-rear direction of the seat 2. A second recess 222 and a third recess 223 that is continuous with the first recess 221 and extends along the left-right width direction of the seat 2 are provided. In the present embodiment, the second recess 222 is provided continuously behind the first recess 221, and the third recess 223 is provided continuously on the side of the first recess 221.

  A nut N is integrally provided behind the first recess 221 when the seat shell 22 is viewed from the bottom side (see FIG. 3). The first bottom wall portion 221a that forms the bottom wall of the first recess 221 is provided with a nut communication hole 221b that communicates with the nut N in the thickness direction. The seat 2 having such a seat shell 22 is a “seat having a screw hole accessible from the back surface” of the present invention, and the first recess 221 is a “recess having a screw hole” of the present invention. In this embodiment, the 1st bottom wall part 221a of the 1st recessed part 221 is set to the substantially flat surface.

  The seat 2 of the present embodiment is also applicable to a rockable chair (not shown). When applied to a rocking chair, the second recess 222 of the seat shell 22 causes the locking operation of the seat 2 ( Specifically, it functions as a guide groove for guiding a sliding motion along the front-rear direction of the seat). A through hole 222b (see FIG. 3) is formed in the second bottom wall portion 222a that forms the bottom wall of the second recess 222 so as to penetrate in the thickness direction. When the seat shell 22 having the second recess 222 is applied to the non-lockable chair 1 (the chair 1 in which the seat shell 22 is fixed to the seat support 3) shown in the present embodiment, the second recess 222 is provided. Since it does not function, it is made to coat | cover with the cap member 6 mentioned later.

  The third recess 223 serves to attach the seat shell 22 and the seat cushion 21. The third recess 223 is provided with an abutting step 223a (see FIG. 3) that can be contacted by an outer edge portion of a third covering portion main body 631 of the cap member 6 described later.

  In the present embodiment, a pair of left and right recessed portion collecting areas 22A formed with these recessed portions 221, 222, and 223 are provided, and each third recessed portion 223 is directed from the first recessed portion 221 toward the outer edge of the seat shell 22 respectively. To extend.

  Accordingly, the plurality of recesses 221, 222, and 223 formed in each recess assembly region 22A can be covered with the common cap member 6, respectively. The details of the cap member 6 will be described later.

  The joint portion 23 of the seat 2 has a lower end attached to a portion near the rear end of the seat shell 22 and an upper end pivotally attached to a portion near the lower end of the backrest 5 so as to be rotatable around a horizontal axis. .

  As shown in FIG. 1 and FIG. 4 (FIG. 4 is a schematic diagram showing a part of the seat support 3 omitted), the seat support 3 is a pair of left and right members disposed in the vicinity of the front end portion of the seat 2. A frame structure 31 having an upright frame 311 and an abutting frame 32 provided between the upright frames 311 and in contact with the back surface of the seat shell 22 are provided.

  The frame structure 31 includes a pair of left and right standing frames 311, a pair of left and right first horizontal frames 312 extending rearward from the lower ends of the standing frames 311, and rear ends of the first horizontal frames 312. And a second horizontal frame 313 connecting the two. In the present embodiment, the pair of upright frames 311, the pair of first horizontal frames 312, and the second horizontal frame 313 are configured using a single frame. In addition, the grounding part 33 which can be grounded to the floor surface is provided in the back surface of the 1st horizontal frame 312 and the back surface of the 2nd horizontal frame 313, respectively.

  As shown in FIGS. 2 and 4, the contact frame 32 is provided at a position separated from the frame main body 321 with both ends fixed to the standing frame 311 by welding by a predetermined distance along the longitudinal direction of the frame main body 321. A fastening portion 322 that can be accommodated in the first recess 221 of the seat shell 22 is provided. In the present embodiment, a contact frame 32 provided with a pair of left and right fastening portions 322 is applied. Each fastening portion 322 is made of steel having a generally tongue-like shape. The fastening portion 322 has a substantially flat fastening portion main body 322a that can be in contact with the first bottom wall portion 221a of the first recess 221 and one end welded to the frame main body 321 and the other end continuous to the fastening portion main body 322a. And a rising portion 322c. By having the rising portion 322c, the fastening portion main body 322a is positioned above the frame main body 321. In addition, a through hole 322d that penetrates in the thickness direction is formed in the fastening portion main body 322a, and the fastening hole 322d and the first bottom wall of the first recess 221 are accommodated in the first recess 221. It is set so that the nut communication hole 221b provided in the part 221a communicates.

  As shown in FIG. 1, the left and right armrests 4 are provided with an armrest main body 41 provided to extend rearward from the upper end of the standing frame 311, and a cover 42 that can cover the outer surface portion of the armrest main body 41. is there. The armrest 4 has a rear end portion fixed to an armrest mounting portion 512 provided at the lower end portion of the backrest 5.

  As shown in FIG. 1, the backrest 5 includes an elastically deformable back frame 51, and a tension fabric 52 provided in front of the back frame 51. In the vicinity of the lower end of the back frame 51, a seat mounting portion 511 to which the joint portion 23 of the seat 2 can be mounted and an armrest mounting portion 512 to which the armrest 4 can be mounted are provided. In the present embodiment, the joint portion 23 is pivotally supported by the seat mounting portion 511.

  Thus, the chair 1 of this embodiment is configured so that the concave portions 221, 222, and 223 formed in the concave portion collecting region 22A of the seat shell 22 are covered with the common cap member 6.

  As shown in FIGS. 2 and 5, the cap member 6 includes a first covering portion 61 that can cover the first recess 221, a second covering portion 62 that can cover the second recess 222, and a third recess 223. It is an integrally molded product made of a synthetic resin provided with a third covering portion 63 that can be covered.

  The first covering portion 61 includes a window portion 611 that can expose the first recess 221, an opening / closing portion 612 that can open and close the window portion 611, and a first standing wall portion 613 that can surround the open area of the window portion 611. It is a thing. The opening / closing part 612 is provided on the first standing wall part 613 via a thin hinge part 614, and an opening position (X) where the window part 611 can be opened and a closing position (Y) where the window part 611 can be closed. Can be rotated between the two. The opening / closing portion 612 is provided with a locking claw 612a for locking the opening / closing portion 612 at the closing position (Y). The locking claw 612 a is provided on the rotation free end side of the opening / closing part 612 and can be elastically engaged with a part of the third covering part 63. The opening / closing part 612 is provided with an avoiding part 612b for avoiding interference with a screw S described later when the opening / closing part 612 is positioned at the closing position (Y).

  The second covering portion 62 can form a surface substantially flush with the peripheral portion of the recessed portion collecting region 22A of the seat shell 22 in a state where the cap member 6 is attached to the recessed portion collecting region 22A of the seat shell 22. And a second standing wall portion 622 that is provided on the outer edge of the second covering portion main body 621 and that is continuous with the first standing wall portion 613. In the present embodiment, a plurality of ribs (not shown) are provided on the back surface of the second covering portion main body 621.

  The third covering portion 63 can form a surface that is substantially flush with the peripheral portion of the recessed portion collecting region 22A of the seat shell 22 in a state where the cap member 6 is attached to the recessed portion collecting region 22A of the seat shell 22. And an engaged portion 632 engageable with a locking claw 612a provided on the opening / closing portion 612 of the first covering portion 61.

  Further, the cap member 6 according to the present embodiment is provided with a hooking claw that can be hooked into at least one recess. Specifically, the first hooking claws are respectively attached to the first standing wall portion 613 of the first covering portion 61, the second standing wall portion 622 of the second covering portion 62, and the third covering portion main body 631 of the third covering portion 63. 6a, a second hooking claw 6b, and a third hooking claw 6c are provided. Among the plurality of hooking claws 6a, 6b, 6c, at least one hooking claw (in the illustrated example, the second hooking claw 6b and the third hooking claw 6c) can be elastically engaged.

  Furthermore, the cap member 6 according to this embodiment has the first recessed portion 221 raised in a state where the cap member 6 is attached to the recessed portion collecting region 22A of the seat shell 22 on the first standing wall portion 613 and the second standing wall portion 622. Protrusions 6d that are in contact with or close to the wall and the standing wall of the second recess 222 are provided.

  Next, a procedure and an operation for attaching such a cap member 6 to the recessed portion collecting region 22A will be described, and a procedure and an operation for fixing the seat 2 and the seat support 3 will be described.

  First, the hook claws (the first hook claws 6a, the second hook claws 6b, and the third hook claws 6c) of the cap member 6 are formed in the respective concave portions (the first concave portion 221, the second concave portion 222, and the third concave portion 223). The cap member 6 is attached to the recessed portion collecting region 22A by being hooked on the hooked portions 221c, 222c, and 223b (see FIG. 3). In this attached state, the second concave portion 222 and the third concave portion 223 are covered with the second covering portion 62 and the third covering portion 63, respectively. Further, at least the second covering portion main body 621 and the third covering portion main body 631 are substantially flat with the peripheral portion of the recessed portion collecting region 22 </ b> A on the back surface of the seat shell 22. In this attachment state, the first standing wall portion 613 of the first covering portion 61 and the second standing wall portion 622 of the second covering portion 62 are respectively connected to the standing wall portion of the first recessed portion 221 and the second recessed portion 222. While abutting or approaching the standing wall portion via the protrusion 6 d, the outer edge portion of the third covering portion main body 631 hits the abutting step portion 223 a of the third recess 223.

  Then, as shown in FIG. 2, by positioning the opening / closing part 612 at the open position (X), the first recessed part 221 in the recessed part collecting area 22 </ b> A is opened through the window part 611. Note that the cap member 6 in which the opening / closing portion 612 is positioned in the open position (X) in advance is attached to the recessed portion collecting region 22A, or the opening / closing portion after the opening / closing portion 612 positioned in the closed position (Y) is attached to the recessed portion collecting region 22A. A mode in which 612 is positioned at the open position (X) or any mode may be used. In the present embodiment, the pair of left and right cap members 6 that are symmetrical to each other are applied in correspondence with the shape of the pair of left and right recessed portion collecting regions 22A.

  Next, it is attached so that the contact frame 32 of the seat support 3 is applied to the back surface of the seat shell 22 to which the cap member 6 is attached. At this time, the respective fastening portions 322 of the contact frame 32 are accommodated in the first concave portions 221 opened via the window portions 611 in the respective concave portion collecting regions 22A. In this accommodated state, the frame body 321 of the abutting frame 32 can divide the first concave portion 221 and the second concave portion 222 of each concave portion collecting region 22A in bottom view, in other words, the first covering of the cap member 6. It arrange | positions in the position which can divide the part 61 and the 2nd coating | coated part 62. FIG. Further, the frame main body 321 is disposed at a position straddling between the respective recessed portion collecting regions 22A, in other words, between the respective cap members 6.

  By accommodating each fastening portion 322 of the contact frame 32 in the first recess 221, the fastening portion main body 322 a of the fastening portion 322 contacts the first bottom wall portion 221 a of the first recess 221 and the first bottom The nut N and the through hole 322d of the fastening portion main body 322a are in communication with each other through the nut communication hole 221b formed in the wall portion 221a. In this state, the screw S inserted in order of the through hole 322d and the nut communication hole 221b from the fastening portion 322 side is screwed into the nut N. Then, by tightening the screw S to the nut N, the steel fastening portion main body 322a comes into pressure contact with the first bottom wall portion 221a of the first recess 221, and the seat shell 22 and the seat support 3 are firmly fixed ( (See FIG. 2).

  Finally, as shown in FIG. 6, the first recess 221, the screw S, and the fastening part main body 322 a of the fastening part 322 are covered by positioning the opening / closing part 612 in the open position (X) at the closing position (Y). To do. At this time, interference between the opening / closing portion 612 and the screw S is prevented by an avoidance portion 612b provided in the opening / closing portion 612. Further, in the process of moving the opening / closing part 612 from the open position (X) to the closing position (Y), the locking claw 612a of the opening / closing part 612 hits the edge of the second covering part main body 621, but the opening / closing part 612 is further closed. When the locking claw 612a is elastically deformed by pressing toward the position (Y), it gets over the second covering portion main body 621, and when it gets over, the engaging claw 612a is provided on the second covering portion main body 621. Engage with the mating part 632.

  In the state where the opening / closing part 612 is positioned at the closed position (Y), the opening / closing part 612 is connected to the joint portion between the frame main body 321 and the fastening portion 322 (specifically, the joint between the frame main body 321 and the fastening portion main body 322a). In order to avoid interfering with the portion, that is, the portion corresponding to the rising portion 322c of the fastening portion 322, each cap member 6 is formed with an opening portion 64 that opens continuously to the window portion 611 ( (See FIGS. 5 and 6). The opening 64 is always opened without being closed by the opening / closing part 612 even when the opening / closing part 612 is positioned at the closing position (Y).

  Thus, the chair 1 according to the present embodiment covers all of the plurality of recesses 221, 222, and 223 that are collectively arranged on the back surface of the seat 2 with the covering portions 61, 62, and 63 of the cap member 6. In a state where the fastening portion 322 is accommodated in the first recess 221 through the opened window 611, the nut N provided in the first recess 221 is accessible from the back side of the seat 2 Therefore, the fixing operation of the seat 2 and the seat support 3 can be suitably performed by screwing the screw S into the nut N and fastening the fastening portion 322 to the first recess 221. In addition, the screw S and the fastening portion 322 can be covered by closing the window portion 611 with the opening / closing portion 612 after the fastening operation, and a good appearance is exhibited.

  In particular, since the cap member 6 is a resin molded product integrally having a plurality of covering portions 221, 222, and 223, it contributes to a reduction in the number of parts and an improvement in handling ease. The work of attaching the member 6 can also be simplified.

  Further, since the fastening part 322 is made of metal, the problem that may occur if the fastening part 322 is made of resin, that is, the problem that the fastening part 322 itself is crushed and deformed by the tightening operation of the screw S is solved. A firm fastening state can be realized.

  Further, the opening / closing part 612 is rotatable between an opening position (X) for opening the window part 611 and a closing position (Y) for closing the window part 611 with the hinge part 614 as an axis. Therefore, the opening / closing operation of the opening / closing unit 612 can be intuitively grasped, and the opening / closing operation of the opening / closing unit 612 can be easily performed.

  In addition, since the seat support 3 includes a metal frame main body 321 disposed on the back surface of the seat 2 and a fastening portion 322 joined to the frame main body 321 by welding, the seat support 3 is fastened to the frame main body 321. The attachment strength with the portion 322 can be improved, and effective support strength is exhibited. Further, the assembly work of the frame main body 321 and the fastening portion 322 can be easily performed as compared with the aspect in which the frame main body 321 and the fastening portion 322 are attached by screwing.

  The cap member 6 is provided with an opening portion 64 that opens continuously to the window portion 611, and a joint portion between the frame main body 321 and the fastening portion 322, specifically, the frame main body 321 and the fastening portion main body 322a. By arranging the joint portion, that is, the portion corresponding to the rising portion 322c in the fastening portion 322 in the opening 64, the opening / closing portion 612 positioned at the closed position (Y) interferes with a part of the seat support 3. Therefore, the malfunction of the opening / closing part 612 due to the interference between the opening / closing part 612 and part of the seat support 3 can be reliably prevented.

  The present invention is not limited to the embodiment described in detail above.

  For example, in the above-described embodiment, a mode in which a total of three concave portions are gathered and provided on the back surface of the seat is illustrated. However, the present invention is not limited to this. It may be an aspect provided. In this case, the cap member should just increase / decrease the number of coating | coated parts suitably according to the number of recessed parts. In addition, if two or more recesses among the recesses provided in a collective manner can each accommodate the fastening portion, each covering portion that can cover the plurality of recesses is provided with a window portion that exposes each recess. What is necessary is just to comprise using the opening-and-closing part which can open and close a window part.

  When the seat support supports the vicinity of the front end portion and the vicinity of the rear end portion of the seat, the seat support is accommodated in a recess provided in the vicinity of the front end portion of the seat and the vicinity of the rear end portion, respectively. What is necessary is just to apply the thing provided with the some fastening part which can be done.

  Moreover, the opening / closing part may be detachable from the window part, and a mode in which the opening / closing part is in the closed position by being attached to the window part and is in the open position by being removed from the window part may be employed.

  Further, a screw hole may be directly formed in the recess of the seat shell without providing a nut, and the screw may be screwed into the screw hole.

  Moreover, in order to implement | achieve the firm fixed state of a fastening part and a frame main body, you may make it the shape which can carry out surface contact with the outer surface part of a frame main body among the fastening parts.

  Moreover, in the said embodiment, although the chair for one person was illustrated, what is called a bench-type chair which a several person can sit down simultaneously may be sufficient.

1 is an overall schematic view of a chair according to an embodiment of the present invention. The figure which is a bottom view of the seat in the embodiment, and shows the state which has the opening-and-closing part of a 1st coating | coated part in an open position. The figure which abbreviate | omits and shows the seat shell seen from the arrow A direction in FIG. The figure which abbreviate | omits and shows the seat support body in the same embodiment. The whole schematic diagram of the cap member in the embodiment. The figure which is a bottom view of the seat in the embodiment, and shows the state which has the opening-and-closing part of a 1st coating | coated part in a closed position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Chair 2 ... Seat 221 ... 1st recessed part 222 ... 2nd recessed part 223 ... 3rd recessed part 3 ... Seat support body 321 ... Frame main body 322 ... Fastening part 6 ... Cap member 61 ... 1st coating | coated part 611 ... Window part 612 ... Opening / closing part 614 ... hinge part 62 ... second covering part 63 ... third covering part 64 ... opening part S ... screw (X) ... open position (Y) ... closing position

Claims (6)

A seat having a screw hole accessible from the back surface, a seat support having a fastening portion fastened to the back surface of the seat with a screw, and a cap member capable of covering the screw and the fastening portion from below. A chair provided,
The seat is provided by collecting a plurality of recesses in a predetermined region on the back surface, and the fastening portion can be accommodated in at least one recess having the screw hole.
The cap member has a plurality of covering portions that can respectively cover the plurality of recessed portions, and among the plurality of covering portions, a recessed portion that accommodates the fastening portion is a window portion that can expose the recessed portion; And the chair characterized by comprising using the opening-and-closing part which can open and close the said window part. The chair according to claim 1, wherein the cap member is a resin molded product integrally including the plurality of covering portions. The chair according to claim 1 or 2, wherein the fastening portion is made of metal. The said opening-and-closing part is a thing pivotable between the open position which opens the said window part, and the closed position which can close the said window part centering on a hinge part. Chair. The said seat support body is provided with the metal frame main body distribute | arranged to the back surface of the said seat, and the said fastening part joined to the said frame main body by welding, Claim 1, 2, 3 or 4 Chair. The cap member is provided with an opening that opens continuously to the window portion, and at least a joint portion between the frame body and the fastening portion is arranged in the opening portion, thereby the opening / closing portion and the joint portion. 6. The chair according to claim 5, wherein interference with the chair is avoided.

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