JP6106975B2 - Chair - Google Patents

Description

  The present invention relates to a chair that can be suitably used in a public space such as a waiting room of a hospital or a public office or an airport lobby.

  Conventionally, various chairs that can be suitably used in public spaces such as hospitals and government office waiting rooms and airport lobbies have been proposed (see, for example, Patent Document 1). In these chairs, a plurality of seats are attached to a leg frame that is horizontally placed between a plurality of legs via brackets, and an armrest is attached between the seats.

  However, in the chair described in Patent Document 1, the armrest cannot be attached unless the bracket for attaching the armrest is attached to the leg frame separately from the bracket for attaching the seat to the leg frame. Depending on the arrangement of the seat with respect to the leg frame, when the armrest interferes with other brackets, or when the mounting space of the armrest itself is not provided in the leg frame, there is a possibility that it cannot be attached. That is, the chair as described in Patent Document 1 is naturally limited in the degree of freedom for arranging the seat and the armrest with respect to the leg frame.

JP 2011-83535 A

  The present invention pays attention to such inconveniences, and an object of the present invention is to provide a chair in which the degree of freedom relating to the attachment of the seat and the armrest to the leg frame is effectively improved.

  In order to achieve such an object, the present invention takes the following measures.

That is, the chair according to the present invention is a chair in which at least a seat is attached to a leg frame laid between a plurality of legs via a bracket, and an armrest can be arbitrarily attached. It has an elbow attachment part to which the armrest can be attached and an attachment part for being detachably attached to the leg frame, and the attachment part clamps the leg frame from above and below to hold the leg. is intended to be attached to the frame, the bracket, be provided with a bracket and a lower bracket on having the mounted portion fitted around the top and bottom of the leg frame, the upper bracket, which has a peripheral wall The elbow mounting portion is positioned in the peripheral wall, and the upper end surface of the peripheral wall is in contact with the lower surface of the seat.

  If this is the case, the armrest can be attached to the bracket that supports the seat, so that the bracket itself can interfere when the armrest is attached, ensuring space for the leg frame to attach the armrest. The problem of having to do can also be avoided. That is, according to this invention, the chair which improved effectively the freedom degree which arrange | positions a seat and an armrest with respect to a leg frame can be provided.

  In addition, in order to further improve the degree of freedom of the configuration of the chair with respect to the leg frame, the bracket has a back attachment portion that can attach a backrest without interfering with the elbow attachment portion and the armrest, It is desirable that a backrest configured separately from the seat can be detachably attached to the back attachment portion. Thereby, the presence or absence of a backrest can also be selected according to the desired layout set to the space which arrange | positions a chair. In other words, the degree of freedom related to the layout of the space is further improved.

  In order to make the bracket compact, it is desirable that the bracket is provided by overlapping the elbow attachment portion and the back attachment portion in the vertical direction.

In order to further improve the degree of freedom related to the arrangement of the bracket with respect to the leg frame by making the bracket more compact , the bracket includes an upper bracket that is fitted from above the leg frame, and the upper bracket includes a peripheral wall. The elbow mounting portion is positioned in the peripheral wall, and the upper end surface of the peripheral wall is in contact with the lower surface of the seat.

  And if it shall have the height adjustment member which can be interposed between the said to-be-attached part and the said leg frame, and can change the height position of the said seat, of the seat according to the objective of the space which arrange | positions a chair A height position can be realized.

  As one aspect for securely attaching the bracket to the leg frame, the leg frame is in a prismatic shape, and the attached portion is attached to the leg frame by sandwiching the leg frame from above and below. Embodiments can be mentioned.

  Further, in order to achieve both a reliable support of the leg frame and a degree of freedom with respect to the mounting position of the bracket, a leg body attaching portion that is detachably attached to the leg body at both ends of the leg frame is provided. It is preferable to use the embodiment.

  ADVANTAGE OF THE INVENTION According to this invention, the chair which improved effectively the freedom degree which arrange | positions a seat and an armrest with respect to a leg frame can be provided.

The front view which concerns on one Embodiment of this invention. FIG. The right side view. FIG. The disassembled perspective view which shows the principal part of the embodiment. Explanatory drawing which shows the leg concerning the embodiment. Explanatory drawing which shows the bracket. The disassembled perspective view which expands and shows the principal part which concerns on the same embodiment. Explanatory drawing which concerns on the modification of the embodiment.

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

  The chair 1 according to the present embodiment is of a type generally called a lobby chair. The chair 1 is preferably used in a public space such as a waiting room of a hospital or a public office or an airport lobby.

  As shown in FIGS. 1 to 8, the chair 1 has a total of four seats 6, four armrests 4 and three backrests 5 on a single leg frame 3 laid between paired legs 2. Are attached via eight brackets 7 each having the same shape.

  In addition to the modes shown in FIGS. 1 to 4, the chair 1 can be used in various modes, such as removing the backrest 5 and the armrest 4 as appropriate, or mounting the circle seat 6 </ b> A attached on the left side in the figure on the right side. It can be changed.

  As shown in FIGS. 5 to 8, the chair 1 can attach the seat 6, the armrest 4 and the backrest 5 to the common bracket 7 simultaneously or selectively, and the bracket 7 itself is also attached to the leg frame 3. It can be removed. That is, the chair 1 according to the present embodiment includes the bracket 7 having an elbow attachment portion 72 to which the armrest 4 can be attached, and a to-be-attached portion 71 for being detachably attached to the leg frame 3.

  Hereinafter, the structure of each part of the chair 1 will be described.

  As shown in FIGS. 1 to 6, the leg 2 has a panel element 21 to be installed on the floor surface, and a frame attachment portion 22 having a recessed surface at the center in the front-rear direction and near the upper end of the panel element 21 and having a female screw hole 24. And have. In the present embodiment, in addition to the leg 2 having the panel element 21 in FIGS. 1 to 5, as shown in FIG. 6, it has a substantially inverted V-shape having a V-shaped leg element 23 and the frame mounting portion 22. It is also possible to replace the V-shaped leg 2A. Of course, in the present embodiment, not only these panel-type legs 2 and V-shaped legs 2A but also various existing shapes can be applied.

  As shown in FIGS. 1 to 6, the leg frame 3 includes a steel frame main body 31 having a rectangular column shape, and a leg mounting portion having a substantially rectangular plate shape attached to both ends of the frame main body 31 by welding, for example. The mounting plate 32 includes leg mounting bolts 33 for mounting the frame mounting portion 22 and the mounting plate 32 through the bolt insertion holes formed at the four corners of the mounting plate 32.

  The armrest 4 includes an elbow body 41 positioned above the seat surface, and an elbow arm 42 that supports the elbow body 41 from below and attaches the elbow body 41 by, for example, screwing. The elbow arm 42 is made of a metal plate having a symmetrical shape. The armrest 4 can be attached to either the left or right side of the seat 6 by appropriately changing the mounting direction of the elbow body 41 with respect to the elbow arm 42. The elbow arm 42 includes an arm substrate 43 attached to the bracket 7, a horizontal extension plate 44 extending horizontally from the arm substrate 43, and an upright plate 45 rising upward from the horizontal extension plate 44. doing. In addition, an upper surface plate in which a metal material is bent horizontally is formed on the upper end side of the upright plate 45, and the elbow body 41 is screwed to the upper surface plate from below, for example, at four locations. Since the mounting structure of the elbow body 41 at 42 is an existing structure, detailed description thereof is omitted. The arm substrate 43 is attached so as to be accommodated inside a peripheral wall 7 d described later at a central portion in the front-rear direction of the bracket 7, and has a bolt insertion hole 47 for being fixed to the bracket 7.

  As shown in FIGS. 1 to 5, the backrest 5 includes a back plate 51, a back cushion 52 attached mainly to the front side of the back plate 51, and a tension fabric 53 that covers the back plate 51 and the back cushion 52. And a back arm 54 that is fixed to the vicinity of the lower end of the back plate 51 and can be attached to the bracket 7 on the distal end side. In the present embodiment, the upholstery 53 is attached so as to cover substantially the entire backrest 5 except for the back arm 54, but as shown schematically in phantom lines in FIG. The upholstery 53 can be removed from the back plate 51, the back cushion 52, and the back arm 54 by opening the fastener. That is, when the backrest 5 becomes dirty or damaged, it can be appropriately washed, repaired, or replaced. The back arm 54 is formed, for example, in a substantially T shape in a side view by appropriately welding a metal plate, and a standing plate 55 attached to the back plate 51 on the rear side, that is, on the base end side, And a back substrate 56 extending forward from the middle portion in the direction. The back substrate 56 has a total of four holes each having a different diameter in the front and rear direction substantially in the middle part and the tip part, and two holes having relatively small diameters at the front and rear ends are provided with a fastening bolt described later. A bolt insertion hole 57 is inserted through 73f and fastened together with the seat 6. The hole having a relatively large diameter located at the intermediate portion is a passage hole 58 for allowing the protruding portion of the bracket 7 to pass therethrough.

  In addition to the backrest 5 having the configuration described above, a backrest 5A as shown in FIG. 9 may be applied in the present embodiment. A backrest 5A shown as a modified example of the present embodiment is configured such that the wooden backboard 51 is exposed outward. The configuration is substantially the same as the backrest 5 described above, but the back cushion 52 is attached using the hooks 51 a and the screw holes 51 b provided on the back plate 51 in a state where the back cushion 52 is covered with the tension fabric 53. More specifically, the back cushion 52 includes a cushion body 52a indicated by an imaginary line made of urethane or the like, and a cushion support plate 52b that supports the cushion body 52a. The cushion support plate 52b has a hook hole 52c that is hooked on the hook 51a, and a screw insertion hole 52d through which the screw 52e is inserted. In the back cushion 52, when the hook hole 52c is hooked on the hook 51a on the back plate 51 side, the screw hole 51b and the screw insertion hole 52d communicate with each other. That is, after the hook hole 52c is hooked on the hook 51a, the screw can be fastened. The screw 52e is not exposed to the outside because it is positioned behind the seat 6 when the chair 1 is assembled.

  As shown in FIG. 1 to FIG. 5 and FIG. 8, the seat 6 is not limited to a normal seat 6 having a generally rectangular shape in plan view, and various seats such as a circle seat 6A having a circular part as described above. Although the shape can be applied, both the seat 6 and the circle seat 6A have substantially the same configuration, and therefore, a normal seat 6 having a rectangular shape in plan view will be described here. The seat 6 includes a seat plate 61 having a substantially rectangular shape, a seat cushion 62 positioned on the seat plate 61, and a tension fabric 63 that covers substantially all of the seat plate 61 and the seat cushion 62. . Similar to that of the backrest 5, the upholstery 63 can be removed from the seat plate 61 and the seat cushion 62 by opening a fastener (not shown) so that washing, repair and replacement can be performed as appropriate. The seat plate 61 includes a seat plate main body 64 made of, for example, a wooden plate material, and eight insert nuts 65 attached to the seat plate main body 64 on the left and right sides, four in total. It can be fixed to the bracket 7 at the position where the insert nut 65 is provided.

  Thus, in the present embodiment, the armrest 4, the backrest 5 and the seat 6 as described above can be attached simultaneously by the same bracket 7.

  As shown in FIGS. 5, 7, and 8, the bracket 7 is formed by firmly attaching an upper bracket 7 a and a lower bracket 7 b that are externally fitted from above and below the leg frame 3 using long screws 7 c. The upper bracket 7a and the lower bracket 7b are made of, for example, aluminum die-casting. By mainly raising a peripheral wall 7d at the peripheral portion of the upper bracket 7a and appropriately providing ribs 7e, steps, and openings in the peripheral wall 7d. Each of the above-described armrest 4, backrest 5 and seat 6 can be detachably attached. Further, as shown in FIG. 7, the bracket 7 can be attached with a height adjusting member 70 interposed between the upper bracket 7 a and the leg frame 3. In this case, the height of the armrest 4, the backrest 5, and the seat 6 can be raised by the thickness dimension of the height adjusting member 70. This bracket has a symmetrical shape. When the brackets 7 having the same shape are attached to both sides of one seat 6, the brackets 1 contribute to a reduction in the number of parts constituting the chair 1. The bracket 7 is attached to the leg frame 3 in a detachable manner, an elbow attachment 72 to which the armrest 4 can be attached, the elbow attachment 72 and the armrest 4 without interfering with the back. A back mounting portion 73 capable of detachably attaching the heel 5; and a seat mounting portion 74 capable of detachably mounting the seat 6 without interfering with the elbow mounting portion 72, the armrest 4, the back mounting portion 73, and the backrest 5. have. The attached portion 71 includes a long screw insertion hole 71a provided over the upper bracket 7a and the lower bracket 7b, and a nut that forms a pair of ribs 7e standing in a hexagonal ring in the vicinity of the center of the upper surface of the upper bracket 7a. It has the receptacle 71b and the attachment nut 71c accommodated in this nut receptacle 71b. The elbow mounting portion 72 includes an elbow mounting surface 72a formed by the upper edge of the rib 7e that forms the nut receiver 71b, and an elbow stop hole 72b that is an opening provided slightly before and after the nut receiver 71b. A side notch 72c provided by cutting out both sides in the longitudinal direction of the peripheral wall 7d to a position flush with the elbow mounting surface 72a, and an arm substrate 43 of the elbow arm 42 placed on the elbow mounting surface 72a. An elbow stop nut 72d and an elbow stop bolt 72e for tightening the bracket 7 are provided. The back mounting portion 73 includes a back mounting surface 73a that is an upper surface of the rib 7e surrounded by the peripheral wall 7d at the front and rear ends of the upper bracket 7a, and a middle stage at a position where the aluminum material protrudes from the front and rear one place inside the peripheral wall 7d The back mounting step 73b provided on the back substrate 56, the positioning surface 73c that is the peripheral surface of the protruding position, and the front and rear of the upper bracket 7a, which can be positioned by fitting in the passage hole 58 provided in the back substrate 56 A joint fastening hole 73d that can communicate with the bolt insertion hole 57 of the back board 56 provided in the vicinity of the end, and a rear cutout 73e in which the peripheral wall 7d on the rear end side is cut out to extend the back board 56 rearward from the bracket 7. And a fastening bolt 73f for fastening the back substrate 56 together with the seat 6 by passing through the fastening hole 73d and fastening to the insert nut 65 of the seat plate 61 on the tip side. The seat mounting portion 74 is a seat plate receiving surface 74a that can be in direct contact with the seat plate 61 at the top surface of the protruding position, and a peripheral wall 7d at the front and rear ends of the upper bracket 7a. An upper end surface 74b which is an end surface, a seat mounting hole 74c drilled in the center of the seat plate receiving surface 74a, and a seat for directly screwing the insert nut 65 of the seat plate 61 through the seat mounting hole 74c. And a mounting bolt 74e.

  When the armrest 4, the backrest 5 and the seat 6 are supported by the bracket 7 constructed as described above, the arm substrate 43, the back substrate 56 and the seat plate 61 of the armrest 4 are mounted on the bracket 7 as shown in FIG. Attach so as to overlap with each other. Specifically, when assembling the chair 1 by attaching the armrest 4, the backrest 5 and the seat 6 to the bracket 7, the armrest 4, the backrest 5, and the seat 6 are respectively bolted to the bracket 7. . Of course, the operation can be performed regardless of whether the bracket 7 is attached to the leg frame 3.

  First, the arm substrate 43 of the armrest 4 is placed on the elbow attachment surface 72a of the elbow attachment portion 72, and the bolt insertion hole 47 and the elbow stop hole 72b of the arm substrate 43 are in communication with each other. In this state, the elbow stopper nut 72d is placed on the bolt insertion hole 47, and the elbow stopper bolt 72e is inserted from below and tightened. The upper end of the elbow stop bolt 72e tightened in this state is positioned slightly below the back mounting surface 73a. At this time, the horizontal extension plate 44 of the elbow arm 42 extends from one of the side cutouts 72c.

  Subsequently, when the back board 56 of the backrest 5 is placed on the back mounting surface 73a, the back board 56 is surrounded by the peripheral wall 7d in the front and the side, and the base end side extends from the rear notch 73e, and the bracket 7 has a passage hole. From 58, only the circular seat plate receiving surface 74a and the seat mounting hole 74c are exposed in the peripheral wall 7d. In this state, the seat plate 61 is placed from above, and each insert nut 65 is positioned so as to communicate with the joint tightening hole 73d and the seat mounting hole 74c. That is, the backrest 5 and the seat plate 61 are fixed by fastening the joint fastening bolt 73f, and the seat 5 is further fixed by the seat fixing bolt 74e. In this manner, the armrest 4, the backrest 5 and the seat 6 are firmly fixed to the bracket 7 without any interference with respect to the single bracket 7.

  With the configuration as described above, the chair 1 according to this embodiment can attach the armrest 4 to the bracket 7 for supporting the seat 6, so that the bracket 7 itself interferes when the armrest 4 is attached. The problem of having to secure the space of the leg frame 3 for attaching the armrest 4 is also effectively avoided. That is, according to the chair 1, the chair 1 is realized in which the degree of freedom in which the seat 6 and the armrest 4 are arranged with respect to the leg frame 3 is effectively improved.

  In this embodiment, in order to further improve the degree of freedom of the configuration of the chair 1 with respect to the leg frame 3, the backrest 5, which is configured separately from the seat 6, is also mounted on the armrest 4 on the seat with respect to the same bracket 7. Is installed without any interference. In other words, since the chair 1 according to the present embodiment can freely select the presence or absence of the backrest 5, the chair 1 can be used as a free aspect that is not limited to the configuration shown in FIGS.

  In this embodiment, in order to make the bracket 7 compact, the elbow mounting portion 72 and the back mounting portion 73 are provided so as to overlap in the vertical direction. More free arrangement of the bracket 7 can be realized. In particular, in the present embodiment, the tightening positions of the elbow mounting portion 72, the back mounting portion 73, and the seat mounting portion 74 are made different in the front-rear direction to make the bracket 7 compact in the width direction and to distribute the load to the bracket 7. Both strength and collateral are achieved.

  In order to further improve the degree of freedom related to the arrangement of the bracket 7 with respect to the leg frame 3 by making the bracket 7 more compact, the bracket 7 has a peripheral wall 7d that rises from the peripheral edge, and the elbow is attached to the peripheral wall 7d. In addition to positioning the portion 72, the upper end surface 74b of the peripheral wall 7d is brought into contact with the lower surface of the seat 6 to effectively avoid interference with the elbow mounting portion 72 and the seat mounting portion 74.

  Depending on the space in which the chair 1 is arranged, it may be necessary to change the height position of the seat 6. In this embodiment, the seat 6 is interposed between the bracket 7 and the leg frame 3. By using the height adjustment member 70 that changes the height position of the mounting portion 74, the height position of the seat 6, specifically, the armrest 4, the backrest 5, and the seat 6 is set to the thickness dimension of the height adjustment member 70. By raising the height, it is possible to make it easier to perform the sitting operation and the rising operation on the chair 1. Thereby, it can be suitably applied to a public space where it is required to make the above operation easier and easier.

  In order to securely attach the bracket 7 to the leg frame 3, in the present embodiment, the leg frame 3 is formed in a prismatic shape, and the leg frame 3 is clamped by the leg frame 3 from above and below to attach the attached portion 71. Thus, the bracket 7 is firmly attached to the leg frame 3 with a simple configuration.

  In addition, in order to achieve both the reliable support of the leg frame 3 and the degree of freedom regarding the mounting position of the bracket 7, in this embodiment, the leg frame 3 is detachably attached to the leg 2 at both ends of the leg frame 3. It is set as the aspect which provided the attachment board 32 which is a leg attachment part.

  Although the embodiment of the present invention has been described above, the specific configuration of each unit is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, in the above embodiment, the backrest is disclosed as a separate body from the seat and is independently attached to the bracket, but of course, even if the backrest is configured to be detachable from the seat, It may be provided integrally with the seat. In addition, the specific form such as the planar shape of the seat, the specific form of the elbow body, and the height of the backrest are not limited to those of the above-described embodiment, and various forms including the existing ones. Things can be applied.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

  INDUSTRIAL APPLICABILITY The present invention can be used as a chair that can be suitably used in public spaces such as hospitals and public office waiting rooms and airport lobbies.

DESCRIPTION OF SYMBOLS 1 ... Chair 2 ... Leg body 3 ... Leg frame 32 ... Leg body attaching part (mounting plate)
4 ... armrest 5 ... backrest 6 ... seat 7 ... bracket 70 ... height adjustment member 7d ... peripheral wall 72 ... elbow mounting portion 71 ... attached portion 73 ... back mounting portion 74b ... upper end surface

Claims (6)

A chair comprising at least a seat attached to a leg frame laid between a plurality of legs via a bracket, and an armrest can be arbitrarily attached,
The bracket has an elbow attachment part to which the armrest can be attached, and a to-be-attached part for being detachably attached to the leg frame,
The attached portion is attached to the leg frame by sandwiching the leg frame from above and below,
The bracket is comprised provided with a bracket and a lower bracket on having the mounted portion fitted around the top and bottom of the leg frame,
The upper bracket has a peripheral wall, the elbow mounting portion is positioned in the peripheral wall, and the upper end surface of the peripheral wall is in contact with the lower surface of the seat. The bracket has a back attachment portion that can attach a backrest without interfering with the elbow attachment portion and the armrest,
The chair according to claim 1, wherein a backrest configured separately from the seat can be removably attached to the back attachment portion. The chair according to claim 2, wherein the bracket is provided by overlapping the elbow attachment portion and the back attachment portion in the vertical direction. The chair according to claim 1, 2, or 3, further comprising a height adjusting member that is interposed between the attached portion and the leg frame and capable of changing a height position of the seat. The chair according to claim 1, 2, 3, or 4, wherein the leg frame has a prismatic shape. The chair according to claim 1, 2, 3, 4, or 5, wherein a leg attachment portion that is detachably attached to the leg is provided at both ends of the leg frame.

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