JP6131731B2 - Chair - Google Patents

Description

  The present invention relates to a chair provided in a lobby or the like, and including a plurality of legs, a beam supported by the legs, and a chair body disposed on the beam.

  Conventionally, as a chair suitably used in a facility such as a lobby of an airport or the like, a waiting room of a government office, a station, a hospital, etc., a plurality of legs, a beam supported by the legs, and a beam are arranged on the beam. It is equipped with a chair body and is widely used for seating a plurality of people.

  In such a conventional chair, a mode in which a leg is provided at the end of the beam is widely known. However, when the legs are provided at the ends of the beam in this way, in other words, when the legs are provided at both ends in the longitudinal direction of the chair, the legs obstruct the passage of a pedestrian or a carry bag. In some cases, there is a desire to provide a leg at an inner site.

  However, in manufacturing both a chair in which the leg is provided at the end of the beam and a chair in which the leg is provided at the inner portion of the beam, conventionally, both of the modes are used. There is a problem that it is necessary to prepare beams and legs having different shapes, which increases manufacturing costs.

JP 2005-224541 A

  The present invention pays attention to the above points, and in the manufacture of both the chair in which the leg is provided at the end of the beam and the chair in which the leg is provided at the inner portion of the beam, The purpose is to make it easier.

  In order to solve the above problems, the chair according to the present invention has a configuration as described below. That is, the chair according to the present invention includes a plurality of legs, a beam supported by the legs, a chair body disposed on the beam, and a lower surface of the chair body, and is disposed on the beam. A first bracket, a second bracket that can be disposed above or below the beam corresponding to the leg or the first bracket, and the second bracket or the leg as a beam. And a fastener that is coupled to the first bracket via the first bracket. The leg is coupled to the first bracket at the end of the beam using the fastener, and the intermediate portion of the beam. A leg outset specification in which the second bracket disposed under the beam is coupled to the first bracket using the fastener, and the second bracket disposed under the beam is connected to an end of the beam. In The leg bracket is coupled to the first bracket using the fastener, and the leg body is coupled to the second bracket disposed on the beam at the intermediate portion of the beam using the fastener. It is configured so that a set specification can be taken selectively.

  In this case, the second bracket and the fastener can be used for both the purpose of coupling the first bracket to the beam and the purpose of coupling the leg to the beam. The body and beam can be used for both leg outset and leg inset specifications.

  In the present invention, the “intermediate portion of the beam” is a concept indicating a portion between the first brackets that is closest to both ends of the beam. Further, the “chair body” is a concept showing all members that can be used as a seat.

  As an example of the fastening device used for such a chair, a male screw member inserted through the leg or the first bracket, the beam, and the second bracket can be cited.

  As a configuration for facilitating the attachment work of the leg or the second bracket to the beam, the leg or the second bracket is placed between the leg or the second bracket and the beam. Examples include a positioning mechanism for positioning a relative position with respect to the beam.

  An example of such a positioning mechanism is one in which a protrusion provided on one of the leg or the second bracket and the beam is engaged with a recess provided on the other.

  In such a chair, as a configuration for stably supporting the chair main body on the beam, the first brackets are respectively attached to the left and right sides of the lower surface of the chair main body, and the chair main body is attached to the chair main body by the first brackets. The thing supported by the beam is mentioned.

  According to the present invention, in manufacturing both a chair in a mode in which a leg is provided at the end of the beam and a chair in a mode in which a leg is provided at an inner portion of the beam, the members are made common. Can do.

The front view which shows the leg outset specification of the chair which concerns on one Embodiment of this invention. The top view which shows the leg outset specification of the chair which concerns on the same embodiment. The side view of the chair which concerns on the same embodiment. AA sectional drawing in FIG. The front view which shows the leg inset specification of the chair which concerns on the same embodiment. The top view which shows the leg inset specification of the chair which concerns on the same embodiment. BB sectional drawing in FIG. CC sectional drawing in FIG. The disassembled perspective view of the principal part of the chair which concerns on the same embodiment.

  An embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 to 3, 5, and 6, the chair C of the present embodiment is provided with a plurality of legs 1, a beam 2 supported by the legs 1, and the beam 2. Corresponding to the chair body 3, the chair support bracket 4 which is a first bracket attached to the lower surface of the chair body 3 and disposed on the beam 2, and the leg body 1 or the chair support bracket 4. A dual-purpose bracket 5 serving as a second bracket that can be disposed above or below the beam 2 is provided. In addition, the chair C of the present embodiment is configured such that the leg 1 is coupled to the chair support bracket 4 at the end of the beam 2 using a male screw member 6 serving as a fastener, and the beam 2 is coupled to the intermediate portion of the beam 2. The combined bracket 5 arranged under the leg is connected to the chair support bracket 4 using the male screw member 6, and the leg outset specification O as shown in FIGS. The dual-purpose bracket 5 is coupled to the chair support bracket 4 at the end of the beam 2 by using a male screw member 6, and the leg 1 is attached to the dual-purpose bracket 5 arranged on the beam 2 in the middle of the beam 2. The leg inset specification I as shown in FIG. 5 to FIG. 8 to be coupled using the male screw member 6 can be selectively adopted.

  First, in the case of taking the leg outset specification O, the configuration of each part will be described below with reference to FIGS.

  As shown in FIGS. 1 to 4, the leg 1 includes a base 11 having a recess 11 a for inserting the beam 2 on the upper surface, and leg struts 12 extending from the base 11 to the front lower side and the rear lower side, respectively. And an adjuster 13 which is a grounding body attached to the lower end of the leg support 12. A screw insertion hole 11b for inserting the male screw member 6 is provided on the bottom surface of the recess 11a of the base 11. Further, a protrusion 11c having a shape protruding upward and extending outward is provided at a portion adjacent to the left and right ends of the screw insertion hole 11b. The protrusion 11c has a function of positioning the leg 1 with respect to the beam 2 by engaging with a locking recess 2a2 of a mounting hole 2a (described later) of the beam 2.

  As shown in FIG. 1, the beam 2 is a prismatic member extending in the width direction, and can support four chair bodies 3 via the chair support bracket 4 on the upper surface. As shown in FIGS. 4 and 9, four pairs of mounting holes 2a for mounting the chair support bracket 4 are provided on the upper surface of the beam 2 so as to correspond to the left and right ends of the chair body 3. In the position immediately below these four pairs of mounting holes 2a, four pairs of mounting holes 2a for mounting the dual-purpose bracket 5 or the leg 1 are provided. These mounting holes 2a are respectively provided with a hole body 2a1 through which the male screw member 6 is inserted, and a protrusion 41c, which will be described later, of the chair support bracket 4 and a combination bracket 5 which extend outward from the left and right ends of the hole body 2a1. A protrusion 53, which will be described later, or a locking recess 2a2 that engages with the protrusion 11c provided on the leg 1 are provided. Here, a set of the projection 11c and the locking recess 2a2 provided on the leg 1, a set of a projection 41c and the locking recess 2a2, which will be described later, of the chair support bracket 4, and a later description of the combination bracket 5 will be described. The pair of the projection 53 and the locking recess 2a2 function as a positioning mechanism for positioning the relative position of the leg 1, the chair support bracket 4, and the dual purpose bracket 5 with respect to the beam 2, respectively. Have Moreover, the latching recessed part 2a2 has a function as a recessed part of the positioning mechanism in a claim. Furthermore, the attachment hole 2a is provided also in the position corresponding to the width direction intermediate part of the chair main body 3 each supported by the right-and-left both ends of this beam 2 on the upper surface, and becomes just under this attachment hole 2a in the lower surface. A mounting hole 2a is also provided at the position. However, when taking the leg outset specification O, the mounting hole 2a provided at the position corresponding to the intermediate portion in the width direction of the chair body 3 is not used.

  As shown in FIGS. 2 and 3, the chair body 3 includes a seat shell 31, a back shell 32 extending rearward and upward from the rear end of the seat shell 31, and a seat cushion 33 attached to the upper surface of the seat shell 31. And a back cushion 34 attached to the front surface of the back shell 32. In FIG. 4, the seat cushion 33 is omitted. Further, nuts 35 are fixed to the four corners of the seat shell 31 by welding or the like. A male screw member 36 for fixing the chair that has passed through the chair support bracket 4 is screwed onto the nut 35, and is coupled to the chair support bracket 4 by the male screw member 36.

  As shown in FIGS. 3, 4 and 9, the chair support bracket 4 includes a base 41 having a concave portion 41 a for inserting the beam 2 on the lower surface, and a first arm extending upward and forward from the base 41. 42 and a second arm 43 extending upward and rearward from the base 41. A screw insertion hole 41b for inserting the male screw member 6 is provided on the bottom surface of the recess 41a of the base 41. Furthermore, the protrusion 41c of the shape which protrudes below and extends outward is provided in the site | part adjacent to both the left and right ends of this screw insertion hole 41b. The projection 41 c has a function of positioning the leg 1 with respect to the beam 2 by engaging with a locking recess 2 a 2 of a mounting hole 2 a (described later) of the beam 2. On the other hand, screw insertion holes 42a and 43a penetrating in the vertical direction are provided at the tip portions of the first and second arms 42 and 43, and for fixing the chair inserted through the screw insertion holes 42a and 43a. The male screw member 36 is screwed onto a nut 35 fixed to the seat shell 31 of the chair body 3. Here, the chair support bracket 4 usually sandwiches the beam 2 with the dual-purpose bracket 5, and the dual-purpose bracket 5 is attached to the chair support bracket 4 via a male screw member 6 serving as a fastener. Are connected. In the leg outset specification O in which the leg 1 is arranged at the end of the beam 2, the end of the beam 2, more specifically, at a position corresponding to the mounting hole 2a closest to both ends in the longitudinal direction of the beam 2. The chair support bracket 4 and the leg 1 sandwich the beam 2, and the male screw member 6 is inserted into the screw insertion hole 11b of the leg 1, the mounting hole 2a of the beam 2, and the screw insertion hole 41b. Is fastened to a nut 7 disposed on the upper surface of the chair support bracket 4 so that the leg 1 is coupled to the chair support bracket 4.

  As shown in FIGS. 4 and 9, the dual purpose bracket 5 is engaged with the surface portion 51 that abuts against the upper surface or the lower surface of the beam 2, and the hole body 2 a 2 of the mounting hole 2 a that protrudes from the surface portion 51, and is female on the inner surface. A cylindrical boss portion 52 forming a screw and a protrusion 53 extending outward from the left and right ends of the boss portion 52 and engaging with the locking recess 2a2 of the mounting hole 2a. In the leg outset specification O, the dual-purpose bracket 5 is disposed below the chair support bracket 4 except for the chair support bracket 4 positioned at both ends in the longitudinal direction, and as described above, between the chair support bracket 4 and the chair support bracket 4. A beam 2 is sandwiched between the chair support bracket 4 and a male screw member 6.

  Next, in the case of taking the leg inset specification I, the configuration of each part will be described below with reference to FIGS. In the following description, differences from the case of taking the leg outset specification O will be mainly described.

  In the case of taking the leg inset specification I, the leg 1 is placed at the longitudinal end of the chair C, more specifically at the longitudinal end of the beam 2, as shown in FIGS. Between the chair support bracket 4 disposed at the longitudinal end of the beam 2 and not below the chair support bracket 4 disposed, and the chair support bracket 4 adjacent to the chair support bracket 4, in other words, the chair body 3 in the position corresponding to the intermediate portion in the width direction.

  Moreover, in this leg inset specification I, as shown in FIG.5, FIG7 and FIG.9, the said combined bracket 5 is provided below all the chair support brackets 4. As shown in FIG. Then, as shown in FIGS. 5, 8, and 9, the dual-purpose bracket 5 is attached to the attachment hole 2 a provided on the upper surface of the beam 2 at a position corresponding to the intermediate portion in the width direction of the chair body 3. In addition, the leg 1 is attached to an attachment hole 2a provided at a position corresponding to the intermediate portion in the width direction of the chair body 3 on the lower surface of the beam 2.

  In the leg inset specification I, the dual-purpose bracket 5 is arranged below all the chair support brackets 4 as described above, and is different from the case where the combination bracket 5 is arranged below the chair support brackets 4. It is arranged above the leg 1 with the posture reversed. Then, the beam 2 is sandwiched between the leg 1 and the leg 1 is coupled via the male screw member 6.

  Here, the attachment aspect of the chair main body 3 and the leg 1 to the beam 2 will be described.

  When the leg outset specification O is adopted, as shown by the solid line in FIG. 9, the chair support bracket 4 is arranged corresponding to the left and right ends of the chair body 3, and the chair support bracket is arranged at the end in the longitudinal direction. A leg 1 is disposed below 4 and a dual-purpose bracket 5 is disposed below the other chair support bracket 4. Then, the male screw member 6 inserted into the screw insertion hole 11b of the leg 1, the mounting hole 2a of the beam 2 and the screw insertion hole 41b is screwed to the nut 7 disposed on the upper surface of the chair support bracket 4. Thus, the chair support bracket 4 and the leg 1 are coupled, and the chair support bracket 4 and the dual-purpose bracket 5 are coupled by the male screw member 6 in the same manner.

  On the other hand, when the leg inset specification I is adopted, as shown by the imaginary line in FIG. 9, the chair support brackets 4 are arranged corresponding to the left and right end portions of the chair body 3, and below the chair support brackets 4. The dual purpose brackets 5 are arranged respectively. Further, at a position corresponding to the lower part of the middle portion of the chair body 3, the dual-purpose bracket 5 is disposed on the mounting portion 2 a on the upper surface side of the beam 2, and the leg 1 is disposed on the mounting portion 2 a on the lower surface side of the beam 2. Then, the chair support bracket 4 and the dual-purpose bracket 5 are coupled by the male screw member 6, and the leg body 1 and the dual-purpose bracket 5 are coupled by the male screw member 6.

  In addition, in this embodiment, in either case of taking the leg outset specification O or the leg inset specification I, the top of the beam 2 is placed on the upper surface of the beam 2 via the chair support bracket 4 instead of the chair body 3 described above. A plate 8 can be attached. The top plate 8 can also be used as a seat with the top plate surface as a seat surface. Since the manner of attaching the top plate 8 to the beam 2 is substantially the same as the manner of attaching the chair body 3 to the beam 2 described above, detailed description thereof will be omitted.

  As described above, according to the present embodiment, the dual-purpose bracket 5 and the male screw member 6 are used for coupling the chair support bracket 4 to the beam 2 and for coupling the leg 1 to the beam 2. Therefore, the leg 1 and the beam 2 having the same shape can also be used for the leg outset specification O and the leg inset specification I. That is, in manufacturing both the chair C in a mode in which the leg body 1 is provided at the end of the beam 2 and the chair C in a mode in which the leg body 1 is provided at an inner portion of the beam 2, the members are shared. Can be planned.

  Also, the relative positions of the leg 1, chair support bracket 4 and dual purpose bracket 5 with respect to the beam 2 are respectively between the leg 1, chair support bracket 4 and dual purpose bracket 5 and the beam 2. Since the positioning mechanism for positioning is provided, the attachment work of the leg 1, the chair support bracket 4 and the dual purpose bracket 5 to the beam 2 can be easily performed.

  Further, the positioning mechanism is formed by engaging protrusions 11c, 41c, 53 provided on the leg 1, the chair support bracket 4 and the dual purpose bracket 5, respectively, on a locking recess 2a2 provided on the beam 2. Therefore, the positioning mechanism as described in the previous stage can be easily realized.

  And since the chair support bracket 4 is attached to each of the left and right sides of the lower surface of the chair body 3 or the top board 8, and the chair body 3 or the top board 8 is supported by the beam 2 by the chair support bracket 4, The chair body 3 or the top plate 8 can be stably supported by the beam 2.

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

  For example, in the above-described embodiment, a male screw member inserted into the leg or the chair support bracket, the beam, and the dual-purpose bracket is used as the fastening device. Any fastening device may be used as long as the leg body or the chair support bracket, the beam, and the combined bracket can be coupled with sufficient strength.

  In the above-described embodiment, a positioning mechanism for positioning a relative position of the leg or the second bracket with respect to the beam is provided between the leg or the second bracket and the beam. However, this positioning mechanism may be omitted, and when a positioning mechanism is provided, any configuration of the positioning mechanism may be employed.

  In the above-described embodiment, the first brackets are respectively attached to the left and right sides of the lower surface of the chair body, and the chair body is supported by the beam by the first brackets. The chair body may be supported on the beam by the bracket.

  In addition, various changes may be made without departing from the spirit of the present invention.

C ... Chair 1 ... Leg 2 ... Beam 3 ... Chair body 4 ... First bracket (chair support bracket)
5 ... 2nd bracket (double use bracket)
O ... Leg outset specification I ... Leg inset specification

Claims (5)

A plurality of legs, a beam supported by the legs, a chair body disposed on the beam, a first bracket attached to the lower surface of the chair body and disposed on the beam; A second bracket that can be placed above or below the beam in correspondence with the leg or the first bracket; and the second bracket or the leg is attached to the first bracket via the beam. A fastening device to be joined,
The leg is coupled to the first bracket at the end of the beam by using the fastener, and the second bracket disposed below the beam at the middle of the beam is attached to the first bracket. Leg outset specifications to be combined using fastening devices,
The second bracket disposed under the beam is coupled to the first bracket at the end of the beam by using the fastener, and the leg is disposed on the beam at the intermediate portion of the beam. A chair configured to be capable of selectively adopting a leg inset specification to be coupled to the second bracket using the fastening device. The chair according to claim 1, wherein the fastening device is a male screw member that is inserted through the leg body or the first bracket, the beam, and the second bracket. The positioning mechanism for positioning the relative position with respect to the beam of the leg or the second bracket is provided between the leg or the second bracket and the beam. Chair. The chair according to claim 3, wherein the positioning mechanism is formed by engaging a protrusion provided on one of the leg or the second bracket and the beam with a recess provided on the other. The chair according to claim 1, 2, 3 or 4, wherein the first brackets are respectively attached to the left and right sides of the lower surface of the chair body, and the chair body is supported by the beam by the first brackets.

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