JP2012239604A - Cup holder - Google Patents

Abstract

Provided is a cup holder that can be used in a desired position with respect to a wide range of existing chairs for bleachers and can be suitably used.
A cup holder is used for a chair in which a plurality of chair main bodies are attached adjacent to a beam, and the holder main body holding a cup and the holder main body are held in a fixed posture. The supporting element 11 is provided, and the supporting element 11 is attached to the outer surfaces 41a, 42a of the part lower than the apexes 41t, 42t of the beam 4 and the abutting front contact part 19a and the rear abutting part. 19b, and a tightening mechanism X serving as a pressing force generating means for attaching the holder body 10 to the beam 4 by pressing the front contact portion 19a and the rear contact portion 19b to the beam 4 which are located outside the beam 4. It was.
[Selection] Figure 7

Description

  The present invention relates to a cup holder that can be suitably used for a chair installed in a stadium or the like.

  Conventionally, as a chair installed in a stadium or the like, a chair having a plurality of legs arranged with a predetermined interval and a seat provided between these legs, or a seat and a backrest is known. (For example, refer to Patent Document 1).

  In addition, as a mode widely applied to this kind of seat, for example, a mode in which a beam is placed on a support, a seat, or a seat and a backrest is placed on the beam, and then fixed is often used. (For example, refer to Patent Document 2).

  By the way, in the chair of a mode as described in the above-mentioned patent document 2, there is a demand to add a cup holder that can be used by each seated person as in the above-mentioned patent document 1. However, there are many restrictions on the subsequent attachment of the cup holder to an already installed chair. For example, when a cup holder for use by a back row seater is attached to the back of the backrest, there arises a problem that the width of the passage formed between the front and rear chairs becomes narrow. Further, when a cup holder is attached by drilling a bolt hole in a leg or the like, there is a problem that a large number of man-hours are required for the attaching operation. Moreover, even if it is going to attach a cup holder without making it interfere with the component of a chair itself, it is the present condition that it can provide only in the position which does not interfere with the said component.

JP-A-8-266352 JP 2001-008771 A

  This invention pays attention to such a malfunction, and it aims at providing the cup holder which can be attached to a desired position with respect to the chair for the existing wide audience seats, and can be used conveniently. .

  In order to achieve such an object, the present invention takes the following measures. That is, the cup holder according to the present invention is a cup holder used in a chair in which a plurality of chair bodies are attached adjacent to a beam, and a holder body that holds the cup and a support that holds the holder body in a fixed posture. An abutment portion for retaining the support element attached to an outer surface of a portion lower than the apex of the beam, and an outer surface of the beam from the outside of the beam. And a pressing force generating means for attaching the holder body to the beam.

  In such a case, since the support element does not protrude above the beam, it is possible to increase the degree of freedom of the attachment point, and the pressing force generating means is not inside the beam itself but from the outside of the beam to the outside surface of the beam. Since the abutting portion is in pressure contact, the beam can be easily attached to the inside of the beam without performing drilling or the like. As a result, it is possible to provide a cup holder that can be attached to a desired position without interfering with other components of the chair above the beam.

  Here, as long as the abutting portion does not protrude above the beam, it includes a mode of abutting so as to sandwich an upright surface formed on the beam. Further, in order to effectively maintain a state in which it is difficult to be removed from the beam, a beam having an upward surface in each of the upper half portion of the front surface and the upper half portion of the rear surface is applied as the beam. It is desirable that the contact portion is in pressure contact with both the upward surfaces.

  In order to stably maintain the posture with respect to the beam, the beams are paired in the front-rear direction, and a support element is attached to the front end on the upward surface formed on the rear surface of the beam on the front side. And a pressing member having a rear contact portion attached to an upward surface formed on the front surface of the rear beam at the rear end. Is desirable.

  Further, in order to firmly fix the beam to the beam, the support element includes an arm that supports the holder main body at the distal end portion and a base end portion that abuts the lower surface of the beam, and a base end portion of the arm. It is preferable to use a pressing mechanism arranged on the upper side, and a pressing mechanism for tightening the pressing tool to the arm as the pressing force generating means.

  And in order to position a holder main body in the position which is hard to interfere with a user, a support element is a base end part attached to the boundary part of an adjacent chair main body, and the front-end | tip which hangs down from the front end side of this base end part It is desirable that the holder main body be provided on both sides or one side of the tip.

  Since this invention is the above structures, while being able to raise the freedom degree of an attachment location, the cup holder which can be easily attached without giving a hole drilling process etc. to a leg can be provided.

The front view of the chair and cup holder which concern on one Embodiment of this invention. The top view of the chair and cup holder of the embodiment. FIG. 2 is a cross-sectional view taken along line AA in which a part of FIG. 1 is omitted. The BB sectional drawing which abbreviate | omits and shows a part which concerns on FIG. The CC sectional view taken on the line which abbreviate | omits one part which concerns on FIG. The external view which shows the principal part which concerns on the same embodiment. The disassembled perspective view which shows the state before attachment of the cup holder of the embodiment. Explanatory drawing corresponding to FIG. 5 which concerns on the modification of the embodiment. Same as above. Same as above. Same as above. Same as above. Same as above. Same as above. Same as above.

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

  The chair 2 in this embodiment is installed in a stadium or the like, and includes a plurality of legs 5, a beam 4 installed between the legs 5, and a plurality of chair bodies 3 provided adjacent to the beam 4. It comprises.

  As shown in FIGS. 1 to 3, the leg 5 is a so-called kick-up type in which the leg 5 is projected in a cantilever manner from the standing surface. As shown in FIG. 3, the leg 5 is mainly formed of an aluminum die-cast leg main body 50, and is formed on the base end side of the leg main body 50 attached to the wall surface W that is a standing surface via a wall bolt 58. And a beam receiving portion 52 formed on the distal end side of the leg main body 50, and a beam pressing member 53 attached in a state where the beam 4 is sandwiched between the beam receiving portion 52 and the beam receiving portion 52. The leg main body 50 has, for example, a shape having flanges wider than the plate thickness at the edges thereof. The beam receiving portion 52 is recessed according to the shape of the outer surfaces 41 a and 42 a of the beam 4, and a beam support surface 54 formed at the front and rear, and a beam bolt 59 between the beam support surfaces 54 to be screwed together. It has an internal thread part 55 for fixing the presser 53. The beam pressing member 53 is used to insert a beam bolt 59 between the beam pressing surface 56 and the beam pressing surface 56 that form a pair before and after the beam pressing surface 56 is formed so as to match the shape of the upward surfaces 41 b and 42 b of the beam 4. Bolt hole 57.

  As shown in FIGS. 1 to 7, the beam 4 is mainly composed of a pair of round pipes at the front and rear, and a front beam 41 and a rear beam 42 provided in parallel to each other at a predetermined distance in the front and rear. And have. In the present embodiment, the upper half of the outer surfaces 41a and 42a of the front beam 41 and the rear beam 42 are the upper surfaces 41b and 42b, and the rear upper surface 41b of the front beam 41 facing each other is the rear. The upward surface 41c and the upward surface 42b on the front side of the rear beam 42 are defined as a front upward surface 42c. In the present embodiment, the positions where the virtual tangent line L in contact with the front beam 41 and the rear beam 42 from above are in contact with each other are set as vertices 41t and 42t.

  As shown in FIGS. 1 to 6, the chair body 3 includes a seat 31, a backrest 32, and a bracket 33 that fixes the seat 31 and the backrest 32 to the beam 4. The main body 31 and the backrest 32 are mainly formed by blow molding or the like. The chair body 3 also has a seat mounting bolt 38 as a fastening tool for clamping the beam 4 by fastening the brackets 33 and fixing the seat 31 to the beam 4. In particular, as shown in FIG. 4, the seat 31 includes a seat body 34 that forms a seating surface on the upper surface side, and a bracket mounting portion 35 for mounting the upper bracket 36 on the lower surface side. The bracket 33 is attached to the lower surface of the seat 31 and is placed on the upper surface of the beam 4 to form a pair of left and right brackets, and a lower bracket that is positioned below the beam 4 and is disposed below the upper bracket 36. 37. The upper bracket 36 includes a positioning surface 36a formed so as to be positioned forward and backward by sliding along the upward surfaces 41b and 42b of the beam 4 and a seat inserted from below. And a seat mounting nut 36b that can be screwed onto the mounting bolt 38. The lower bracket 37 has a fixed surface 37a formed so as to be in close contact or substantially in close contact with the outer surfaces 41a and 42a of the beam 4 and a bolt hole 37b for inserting a seat mounting bolt 38. .

  The chair body 3 is configured in this manner, so that the chair body 3 can be easily slid along the longitudinal direction of the beam 4 by loosening the seat mounting bolts 38.

  The cup holder 1 according to the present embodiment is attached to the chair 2 configured as described above.

  Here, the cup holder 1 according to the present embodiment is used for a chair 2 in which a plurality of chair main bodies 3 are attached adjacent to a beam 4, and includes a holder main body 10 that holds a cup, and the holder main body 10. The supporting element 11 is a contact portion for preventing the retaining element 11 attached to the outer surfaces 41a and 42a at portions lower than the vertices 41t and 42t of the beam 4. The holder main body 10 is brought into contact with the beam by bringing the front contact portion 19a and the rear contact portion 19b into contact with the front contact portion 19a and the rear contact portion 19b from the outside of the beam 4 toward the outer surfaces 41a and 42a of the beam 4. And a tightening mechanism X which is a means for inducing a pressing force to be attached to 4.

  Further, as shown in FIGS. 1 to 3, the cup holder 1 is a double type 1w cup having two holder bodies 10 shown in FIGS. 5 and 7 with respect to the chair 2 in this embodiment. Although the holder 1 and the single type 1s cup holder 1 having the single holder main body 10 shown in FIG. 6 are illustrated, since both have the same configuration except for the arrangement of the holder main body 10, The same reference numerals are attached and described as the configuration of the cup holder 1.

  As shown in FIGS. 5 to 7, the cup holder 1 includes a holder body 10 and a support element 11 that holds the holder body 10 in a fixed posture as described above.

  As shown in the figure, the holder main body 10 has a bowl-shaped cup housing portion 10a formed so as to be substantially shallower than the cup to be held, and a mounted body for attaching the cup housing portion 10a to the support element 11. For example, it is an integrally molded product made of synthetic resin. The cup accommodating portion 10a is formed so that the diameter gradually increases upward so that the cup can be easily taken in and out, and has an opening at the bottom of the lower end. Similarly, the attached portion 10b is for fixing the cup receiving portion 10a to the support element 11 so that the user can easily put in and out of the cup so that the cup accommodating portion 10a is slightly inclined forward. In the present embodiment, as an example, a mode in which the attached portion 10b is screwed to the support element 11 is disclosed, but of course, the holder body 10 can be attached to the support element 11 while maintaining the posture. If present, various existing aspects can be applied. Needless to say, the holder body 10 may hold food other than a cup, for example, a food or drink in a can or a plastic bottle.

  The support element 11 includes an arm 12 having an L shape in side view, a pressing tool 13 attached to the arm 12 from above, and a bolt 14 for coupling the pressing tool 13 and the arm 12 together.

  The arm 12 is made of a metal having a substantially U-shaped cross section formed in an L shape in side view, for example, supporting the holder main body 10 at the distal end portion 17 and bringing the proximal end portion 16 into contact with the lower surface of the beam 4. The channel material is mainly used, and in the present embodiment, a projection 15 for attaching to the beam 4 is provided on the upper side. The base end portion 16 is set to have a length longer than the distance between the beams 4 in the front-rear direction, and the projection 15 is attached to the center portion in the front-rear direction by welding, for example, and is slightly lower in detail from the front end portion. It is made to continue so that the front-end | tip part 17 may hang down toward back. The distal end portion 17 is connected to bend from the front end of the base end portion 16 at the upper end, and has a holder mounting portion 17a for screwing the holder main body 10 on one side or both sides at the lower end. Needless to say, the one having the holder mounting portion 17a on one side is the tip portion 17 applied to the single type 1s, and the one having both sides is the tip portion 17 applied to the double type 1w. The projecting portion 15 is mainly composed of a metal material bent in a U-shape, and an insertion hole 15a for inserting the bolt 14 is formed at the center in the front-rear and left-right directions. A nut 15n welded so as to communicate with the insertion hole 15a is provided on the lower side.

  The presser 13 is arranged above the base end portion 16 of the arm 12 and is made of a metal such as solid aluminum attached from above the beam 4, and is located between the front beam 41 and the rear beam 42. And has a width dimension of 15 mm, for example. The presser 13 has a bolt insertion hole 18 for inserting the bolt 14, and a front contact portion 19 a and a rear contact portion 19 b corresponding to the contact portion of the present invention. The front contact portion 19a, which is the front contact portion, is arranged at the front end of the presser 13 and is attached to a rear upward surface 41c formed on the rear surface of the front beam 41 so as to be slightly curved so as to be in close contact. It is recessed. Further, the rear contact portion 19b, which is the rear contact portion, is slightly curved so as to be attached to and closely contact the front upward surface 42c formed on the front surface of the rear beam 42 by being arranged at the rear end of the presser 13. It is what was dented to.

  Therefore, in this embodiment, as shown in FIGS. 6 and 7 in particular, a tightening mechanism X for tightening the pressing member 13 to the base end portion 16 of the arm 12 is provided as a pressing force generating means according to the present invention. Thus, the contact portion of the support element 11 is brought into pressure contact with both the upward surfaces 41b and 42b, specifically, the rear upward surface 41c of the front beam 41 and the front upward surface 42c of the rear beam 42, respectively. .

  As shown in FIGS. 5 and 7, the tightening mechanism X includes a bolt 14 inserted from the presser 13 and a nut 15 n provided on the protruding portion 15 side. First, the arm 12 is positioned below the beam 4 so that the front contact portion 19a and the rear contact portion 19b of the presser 13 are in contact with and in close contact with the rear upward surface 41c and the front upward surface 42c. Yes. Then, by tightening the tightening mechanism X, that is, the bolt 14 and the nut 15n, the beam 4 is clamped between the base end portion 16 and the presser 13 and pressed from above and below. Thereby, the cup holder 1 is firmly fixed to the beam 4.

  As shown in FIG. 5, the upper surface 13 a of the presser 13 is positioned below the apexes 41 t and 42 t of the beam 4, that is, the virtual tangent L, together with the uppermost surface 14 a of the bolt 14. Is set to As a result, when the support element 11 is attached to the beam 4 as shown in the figure, all of the constituent elements do not protrude above the virtual tangent L and the vertices 41t and 42t with respect to the beam 4. ing. In this way, the cup holder 1 does not have a gap of a predetermined dimension between the chair bodies 3 as shown in FIG. 1 but the chair holder 3 is fixed to the beam 4 with no gap. When mounting the bracket, temporarily loosen the seat mounting bolt 38 as described above, and temporarily provide a clearance sufficient to allow the presser 13 and the bolt 14 to be inserted from above while sliding the chair body 3 on the beam 4. Thus, it is possible to attach the cup holder 1 to a desired position regardless of the final arrangement of the chair body 3.

  With the configuration as described above, the cup holder 1 according to the present embodiment has the front contact portion 19a and the rear contact portion 19b that are the contact portions facing the outer surfaces 41a and 42a of the beam 4 outside the beam 4. By providing the tightening mechanism X as a means for inducing pressure contact from the side, not only can the beam 4 and the leg 5 be easily attached without drilling, but also the support element 11 protrudes above the beam 4. Therefore, it can be attached to a desired position without interfering with the chair body 3. Particularly in the present embodiment, since the support element 11 does not protrude above the beam 4, the chair body 3 is slid along the beam 4 to a required position even when the cup holder 1 is attached to the beam 4. It is also possible.

  In the present embodiment, in order to maintain the state in which it is difficult to be detached from the beam 4, it is assumed that the beam 4 has upward surfaces 41b and 42b in the upper half of the front surface and the upper half of the rear surface, respectively. Are brought into pressure contact with both the upward surfaces 41b and 42b.

  In this embodiment, in order to stably maintain the attitude with respect to the beam 4, the front contact portion 19 a attached to the rear upward surface 41 c of the front beam 41 and the front upward surface of the rear beam 42 in the front end. The presser 13 is provided with a rear contact portion 19b attached to 42c. Thereby, the space between the beams 4 is effectively used, and the space for the attachment portion to the beams 4 is also reduced.

  Further, in order to firmly fix to the beam 4, in the present embodiment, a tightening mechanism X that tightens the presser 13 in the direction of the base end portion 16 of the arm 12 is used as a pressing force generating means. In this embodiment, the tightening mechanism X is realized by the bolts 14 and the nuts 15n, thereby realizing a stronger attachment.

And in order to position the holder main body 10 in the position which is hard to interfere with a user, in this embodiment, the holder main body 10 is located on both sides or one side of the distal end portion 17 that hangs downward from the front end of the base end portion 16 of the arm 12. Is provided. Further, in the present embodiment, the tip end portion 17 is slightly below the rear so that the holder mounting portion 17a provided at the lower end of the tip end portion 17 is positioned slightly rearward so that the holder main body 10 does not easily interfere with the user. It extends linearly.
<Modification>
As mentioned above, although embodiment of this invention was described, the specific structure of each part is not limited only to embodiment mentioned above. A plurality of modified examples of the present embodiment will be described below. In these modified examples, the same reference numerals are given to the constituent elements corresponding to the constituent elements of the above embodiment, and the detailed description thereof will be omitted.

  In the modified example shown in FIG. 8, L-shaped steels 161 and 162 that can be positioned so as to sandwich the beam 4 from the front and rear instead of providing the projecting portion 15 in the above embodiment are attached to the base end portion 16 by, for example, welding. It is. And according to the point which does not have the protrusion part 15, while setting up and down thickness of the pressing tool 13 and the length dimension of the volt | bolt 14, the insertion hole 16a and the nut 16n which penetrate the volt | bolt 14 are provided in the base end part 16. It is a thing. Thereby, since the inward surfaces 163 and 164 of the L-shaped steels 161 and 162 sandwich the beam 4 so as not to move back and forth, more reliable positioning with respect to the beam 4 is realized.

  In the modified example shown in FIG. 9, a bent plate 150 bent according to the shape of the beam 4 is attached instead of attaching the protruding portion 15 in the above embodiment. The inward surface 151 and the outward surface 152 of the bent plate 150 sandwich the front beam 41 and the rear beam 42 so as not to move back and forth. Thereby, the positioning with respect to the beam 4 is made more reliable while avoiding an increase in the number of parts.

  In the modification shown in FIG. 10, instead of providing the protrusion 15, a notch 16 c having a shape corresponding to the shape of the outer surfaces 41 a and 42 a of the beam 4 is formed in the base end portion 16. And according to the point which does not have the protrusion part 15 compared with the said embodiment, the penetration hole 16a and the nut 16n which penetrate the volt | bolt 14 are provided in the base end part 16. FIG. Thereby, the freedom degree attached to the chair 2 is effectively improved by using less space near the beam 4. In addition, a reduction in the number of parts and a reliable positioning with respect to the beam 4 are realized at the same time.

  The modification shown in FIG. 11 is provided with a protrusion 153 positioned from the lower side to the rear side of the beam 4 and a pressing tool 130 attached to the protrusion 153 from the front. In order to attach the presser 130 from the front side, a bolt insertion hole 18 is provided in front of the presser 130, and a nut portion 153 n that can communicate with the bolt insertion hole 18 is provided on the front surface of the protrusion 153. Also in this modified example, the uppermost surface 13a of the presser 130 and the uppermost surface 153a of the protruding portion 153 are positioned below the vertices 41t and 42t. Further, the front abutting portion 19a provided on the presser 130 presses the front upward surface 41d of the front beam 41, and the rear abutting portion 19b provided on the protruding portion 15 and the rear upward surface 42d of the rear beam 42 are provided. It is supposed to be in pressure contact. Thereby, even if the chair main body 3 is fixed on a desired position in the beam 4, the chair main body 3 can be slid by bolting the presser 13 from the front side. The cup holder 1 can be attached to a desired position without interference. In addition, the cup holder 1 according to the present invention does not matter in which direction the tightening mechanism X tightens the beam 4.

  In the modification shown in FIG. 12, an outer fitting portion 154 that is fitted to the beam 4 from the front and the rear is provided instead of the protruding portion 15, and when the cup holder 1 is attached, the front and rear ends of the outer fitting portion 154 are connected to the beam 4. An elastic pressing portion Y that elastically presses the front upward surface 41d of the front beam 41 and the rear upward surface 42d of the rear beam 42 while being elastically deformed so as to be held in place. It is. Thereby, the attachment of the cup holder 1 does not require special members such as bolts and screws, which contributes to a reduction in the number of parts. In other words, the pressing force inducing means according to the present invention is not limited to the tightening mechanism X by screwing or the like.

  The modification shown in FIG. 13 is not composed of a circular pipe having a circular shape in cross section, but is configured to be applied to the chair 2 to which the angular beam 40 having a generally rhombic shape in cross section is applied. That is, in order to apply the shapes of the front contact portion 19a and the rear contact portion 19b provided at the front and rear ends of the presser 13 to the shapes of the rear upward surface 41c and the front upward surface 42c of the angular beam 40, it is substantially planar. It is a thing. That is, the cup holder 1 according to the present invention has a shape having the upward surfaces 41b and 42b on the outer surfaces 41a and 42a at positions below the vertices 41t and 42t, not the beam 4 having a circular shape in cross section. Can be suitably applied.

  The modification shown in FIG. 14 can be applied to the chair 2 having a mode in which the chair body 3 is supported by a single beam 43 as shown in FIG. It is an aspect which can be attached. That is, an outer fitting portion 155 corresponding to the shape of the outer surfaces 43 a and 43 a of one beam 43 is attached to the base end portion 16, and the outer fitting portion 155 is attached to the beam 43 on the inner surface side of the outer fitting portion 155. For example, a detent sheet 156 made of urethane or the like is attached to prevent rotation. The upper and lower end portions of the anti-rotation sheet 156 are the front contact portion 19a and the rear contact portion 19b. The front and rear ends of the outer fitting portion 155 are elastically deformed gradually so as to hold the beam 4, while the front contact portion 19 a and the rear contact portion 19 b are always in the front upward direction of the beam 43 in the mounted state. The elastic pressing portion Y is configured to press the 43e and the rear upward surface 43f by elasticity. That is, the chair 2 to which the cup holder 1 according to the present invention can be attached is not limited to the aspect having the plurality of beams 4.

  In the modification shown in FIG. 15, instead of the projecting portion 15, a curved projecting portion 157 is provided in which a curved surface 157 c that is in close contact with the beam 4 is provided by, for example, cutting a metal plate. As described above, the curved surface 157c is brought into close contact with the outer surfaces 41a and 42a of the beam 4 from below so that the positioning with respect to the beam 4 can be performed more accurately.

  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-described embodiment, only the mode in which the elastic pressing portion sandwiches one or a plurality of beams is disclosed, but it is needless to say that the elastic pressing portion may be capable of pressing the beams by being sandwiched between the plurality of beams. And in the said embodiment, although applied to what is called a kick-up type chair attached to a wall surface, of course, even if it is a chair with the leg which makes the aspect which stands | starts up from a floor surface, if it is a chair of the aspect over which the beam was spanned It can be suitably applied. Moreover, although only the aspect which attached the holder main body to the side of the front-end | tip part was disclosed in the said embodiment, of course, you may arrange | position the holder main body in front of the front-end | tip part, or the downward direction. Moreover, although the thing of only one pressing member was disclosed in the said embodiment, of course, you may provide several pressing tools. In addition, specific aspects such as the holder main body and the arm are not limited to those of the above-described embodiment, and various aspects including the existing ones 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.

  The present invention can be used as a cup holder used by being attached to a chair.

DESCRIPTION OF SYMBOLS 1 ... Cup holder 10 ... Holder main body 11 ... Supporting element 12 ... Arm 13, 130 ... Presser 16 ... Base end part 17 ... Tip part 19a ... Contact part (front contact part)
19b ... contact part (rear contact part)
2 ... chair 3 ... chair body 4 ... beam 40 ... beam (square beam)
41a, 42a ... outer surface 41b, 42b ... upward surface 41t, 42t ... vertex X ... pressure contact force inducing means (tightening mechanism)
Y: Pressure contact inducing means (elastic pressing part)

Claims (5)

A cup holder used for a chair mounted with a plurality of chair bodies adjacent to a beam,
A holder body for holding the cup;
A support element for holding the holder body in a fixed posture;
The support element includes a retaining contact portion attached to the outer surface of a portion lower than the top of the beam, and the holder body by pressing the contact portion from the outside of the beam to the outer surface of the beam. A cup holder comprising: a pressure-contact force-inducing means for attaching to the beam. The beam has an upward surface on the upper half of the front surface and the upper half of the rear surface.
The cup holder according to claim 1, wherein the contact portion of the support element is pressed against the both upward surfaces.   The beams are paired in the front-rear direction, and the support element has a front contact portion attached to an upward surface formed on a rear surface of the front beam on the front end and a rear side on the rear end. 3. The cup holder according to claim 2, further comprising a pressing member having a rear contact portion attached to an upward surface formed on the front surface of the beam. The support element includes an arm that supports the holder main body at a distal end portion and a base end portion that is in contact with the lower surface of the beam, and the presser that is disposed above the base end portion of the arm. The cup holder according to claim 3, wherein the pressing force inducing means is a tightening mechanism for tightening the pressing member to the arm. The support element includes a base end portion attached to a boundary portion of an adjacent chair body, and a tip end portion that hangs downward from a front end side of the base end portion, and both sides or one side of the tip end portion. The cup holder according to claim 1, wherein the holder main body is provided on the cup holder.

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