JP2016078699A - Folding table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further improve convenience, by improving the stiffness of a coupling supporting portion of a folding mechanism portion with a simple structure.SOLUTION: A folding table 10 has a table body portion 12 foldably attached to a seat S; and a seat side attaching member 164 which is coupled to the seat S and supports the table body portion 12. The seat side attaching member 164 is equipped with a bulging portion 192 between a pair of inside wall portions 196 (second wall portions 196b) directly attached to the seat S. The bulging portion 192 improves he stiffness of the pair of the inside wall portions 196 positioned on both sides to improve the stiffness of the whole of the seat side attaching member 164, thereby stably supporting the table body portion 12.SELECTED DRAWING: Figure 13

Description

  The present invention relates to a folding table that is foldably attached to an attachment target.

  The folding table is attached to, for example, a vehicle seat, and places or holds articles (including drinks) that are carried by a passenger of the vehicle. For example, Patent Document 1 discloses a seat table (folding table) on which a tablet terminal can be placed on the rear side of a seat.

  The folding table disclosed in Patent Literature 1 includes a bezel that is fixed to a seat and a table that is rotatably attached to the bezel. The table is assembled by laminating each member of the lower frame, the upper frame, and the top plate, and the storage state close to the bezel side by meshing with the gear provided on the side of the table and the rotating damper of the bezel, It moves to the state which left | separated from the bezel and was developed horizontally.

JP 2012-183856 A

  By the way, a folding table as disclosed in Patent Document 1 is likely to be subjected to a large load on a configuration (folding mechanism) that connects the table and the sheet and rotates the table with respect to the sheet. For this reason, the rigidity of the connection support part connected with the sheet | seat of a folding mechanism part is calculated | required that it is a sufficiently high thing. In particular, this type of folding table is assumed to have a large number of occasions where a load (external force) such as a large number of times of opening and closing of the table, a passenger or the like operating with a strong operating force, or placing a heavy object, is rigid. It is desired to improve as much as possible.

  The present invention has been made in relation to the technology of the folding table described above, and is a folding that can further improve the usability by improving the rigidity of the coupling support portion of the folding mechanism portion with a simple configuration. The purpose is to provide a table.

  In order to achieve the above object, the present invention provides a folding table including a table main body that is foldably attached to an attachment target, and is connected to the attachment target and supports the table main body. The connection support portion includes a pair of attachment portions that are directly attached to the attachment target, and a bulging portion that is formed between the pair of attachment portions.

  According to the above, the connection support part of the folding table includes the bulging part between the pair of attachment parts directly attached to the seat, so that the rigidity of the connection support part itself is increased. In particular, since the rigidity of the pair of attachment portions located on both sides of the bulging portion is greatly improved, the connection support portion can stably support the table main body portion. Moreover, since the bulging part is formed by utilizing the space between the pair of attachment parts, it is possible to suppress an increase in size of the connection support part and to favorably fold the table body part.

  In this case, it is preferable that the connection support portion has a pair of switching holding portions capable of switching and holding the posture of the table main body portion, and the bulging portion is provided between the pair of switching holding portions. .

  As described above, the bulging portion is provided between the pair of switching holding portions, whereby the folding table has improved rigidity in the vicinity of the pair of switching holding portions. Therefore, it is possible to effectively switch the posture of the table main body portion or hold the posture of the table main body portion by the switching holding portion.

  Moreover, it is preferable that the said bulging part protrudes from the same direction as the said switching holding | maintenance part and this switching holding | maintenance part.

  Thus, the rigidity of a connection support part improves further because the bulging part protrudes rather than a pair of switching holding | maintenance part.

  Further, it is preferable that the attachment portion is fastened to the attachment target by a fastening member, and a concave portion is formed at a position of the bulging portion facing the fastening member.

  As described above, the connection support portion is provided with the concave portion in the bulge portion, so that the rigidity of the bulge portion is further increased and the attachment portion is sufficiently exposed so that the connection support portion can be easily fastened by the fastening member. be able to.

  Furthermore, it is preferable that a projecting portion projecting toward the attachment target is provided on a surface of the connection support portion that faces the attachment target.

  Thus, by providing a protrusion in the connection support part, the folding table can be positioned by inserting the protrusion into the attachment object when attaching the connection support part to the attachment object. Will improve.

  Furthermore, the protruding portion may be arranged alongside the mounting portion outside the bulging portion.

  Thus, by forming the protruding portion side by side with the mounting portion, when the protruding portion is inserted into the mounting target, the mounting portion can be more accurately positioned at the fastening position of the mounting target. Workability is further improved.

  According to the present invention, the folding table can be further improved in usability by improving the rigidity of the connection support portion of the folding mechanism portion with a simple configuration.

It is a perspective view which shows the sheet | seat attachment state of the folding table which concerns on one Embodiment of this invention. It is a side view of the folding table of FIG. It is a top view which shows the surface side of the folding table of FIG. It is a top view which shows the back surface side of the folding table of FIG. It is a top view which shows the back surface side of the table main-body part of the folding table of FIG. It is a top view which shows the back surface side of the state which removed the cover of the folding table of FIG. FIG. 7 is an enlarged explanatory view showing the front side and the right corner of the folding table of FIG. 6 in an enlarged manner. It is a perspective view which shows the cover of the folding table of FIG. It is a fragmentary sectional view which expands and shows the assembly state of the table main-body part and cover of the folding table of FIG. It is a perspective view which shows the cup holder of the folding table of FIG. It is a perspective view which shows the assembly | attachment state of the cup holder and table main-body part of FIG. It is the perspective view which looked at the folding table of FIG. 2 from diagonally downward direction. It is a perspective view which shows the rear side of the sheet | seat side attachment member of FIG. It is a perspective view which shows the front side of the sheet | seat side attachment member of FIG.

  Hereinafter, preferred embodiments of a folding table according to the present invention will be described in detail with reference to the accompanying drawings.

  The folding table which concerns on this embodiment is applied as interior for vehicles, for example, and is installed in the sheet | seat which is attachment object. Specifically, as shown in FIG. 1, the folding table 10 is foldably attached to the back surface of a seat S (front seat) in front of the rear seat, and is a passenger (hereinafter also referred to as a user) who gets into the rear seat. ) Places or holds articles (mobile devices, drinks, etc.) that are brought into the car. The mounting target of the folding table 10 is not limited to the seat S in the vehicle, but in front of a seat of a transport device (railway, ship, aircraft, etc.) or in front of a seat of a facility (theatre, stadium, waiting area, etc.). Furthermore, it is good to install in the location where a user waits for a long time.

  As shown in FIG. 2, the folding table 10 includes a table body 12 that is rotatable with respect to the sheet S. That is, “folding” in the present specification is performed by turning the table main body 12 with respect to the attachment target. When the folding table 10 is not used, the table main body 12 is disposed along the back surface of the sheet S as shown by a two-dot chain line in FIG. When the folding table 10 is used, the table body 12 is separated from the back surface of the sheet S and is in a substantially horizontal unfolded state, as indicated by the solid line in FIG. The article is placed or held on the table body 12 in the unfolded state.

  Such a folding table 10 is expected to have many usage opportunities, is easy to be operated by the user, has sufficient durability, and has a structure that can stably support the brought-in items. For this reason, the folding table 10 according to the present embodiment includes a cover 14, a cup holder 16, and a folding mechanism 18 in addition to the table body 12. Hereinafter, each configuration of the main folding table 10 will be specifically described.

  In the following description, unless otherwise specified, the position, direction, and the like of each component are described based on the folded folding table 10 in accordance with the illustration of the arrow in FIG. That is, in FIG. 1, the sheet S side on which the folding table 10 is provided is referred to as a front side (front direction), and the side on which the user sits at a position opposite to the sheet S is referred to as a rear side (rear direction). In FIG. 1, the diagonally right side is referred to as the right side (right direction), the opposite diagonal left side is referred to as the left side (left direction), the upper side is referred to as the upper side (upward direction), and the lower side is referred to as the lower side (downward direction).

  The folding table 10 is basically formed symmetrically with the central portion in the left-right direction of the table body 12 as the center line. The table body portion 12 is formed in a flat plate shape, and has a rectangular shape having long sides (front side 20 and rear side 22) in the left-right direction and short side sides 24 in the front-rear direction in the plan view shown in FIG. Presents. The left and right widths of the table body 12 may be appropriately designed according to the left and right widths of the sheet S. Alternatively, the table body 12 may have a longer front-rear width than a left-right width.

  Corners where the sides 20, 22, 24 of the table main body 12 intersect with each other are formed as rounded corners having a large curvature radius. Further, since the front side 20 of the table main body 12 constitutes a mounting portion and a turning portion for the seat S, the front and rear widths are formed wider than the widths of the side sides 24 and the rear side 22. Furthermore, the front side 20 is formed to be slightly narrower than the rear side 22 because the front side 20 is connected to an inclined side 26 that is inclined forward and obliquely inward in front of the side 24.

  Although the material which comprises this table main-body part 12 is not specifically limited, It is desirable to select a lightweight thing for a user's operativity improvement. In this case, for example, a synthetic resin material such as polypropylene, ABS resin, acrylic resin, polyamide, polyacetal, polycarbonate, or polyethylene terephthalate may be applied.

  The inside of the table main body 12 is a plate-like wall portion 28 having a thin plate thickness. The outer periphery (front side 20, side side 24, rear side 22) of the table main body 12 is connected to the plate-like wall portion 28 and slightly protrudes upward from the plate-like wall portion 28. The outer peripheral wall 32 is bent downward from the outer edge of the outer peripheral edge and protrudes with a protruding amount larger than the protruding amount of the surrounding portion 30 (see also FIG. 9). The outer peripheral wall 32 is formed over substantially the entire circumference of the table main body 12, so that the table main body 12 has a substantially hollow inner side and rear surface side portion of the outer peripheral wall 32. Thereby, weight reduction of the table main-body part 12 is achieved.

  The plate-like wall portion 28 of the table main body portion 12 is formed so that the front side and the middle side in the front-rear direction on the surface are flat. A pair of cup holes 34 are provided on the left and right sides of the plate-like wall portion 28. Each cup hole 34 is inserted with an article (especially a drink container) by the user, and holds the article in cooperation with the cup holder 16. That is, the table main body 12 is capable of holding two drinks in consideration of a plurality of users getting on the rear seat. Of course, one or more cup holders 16 and cup hole portions 34 may be provided in the table main body portion 12. Each hole 34 for cups is formed in the square shape whose length is 70-90 mm, for example. Thereby, each hole 34 for cups has the versatility which can respond to various drink containers (PET bottles, cans, cups, etc. around 500 ml).

  The peripheral edge part 34a of each cup hole 34 is slightly depressed downward with respect to the plate-like wall part 28 that is formed flat in the periphery. Therefore, the rigidity in the vicinity of the peripheral edge 34a of the cup hole 34 is increased. Moreover, the peripheral part 34a is formed in the taper shape which narrows a hole toward a downward direction, and makes easy insertion of a carry-on thing. Further, the front, rear, left and right corners of the peripheral edge 34a of each cup hole 34 are formed as round corners.

  The rear portion side of the plate-like wall portion 28 is formed in an inclined recess portion 36 that is gently inclined downward in the rearward direction with respect to the flat front portion side and intermediate portion side. On the other hand, the surrounding portion 30 protrudes by surrounding the front side, the intermediate portion side, and the inclined recess portion 36 of the plate-like wall portion 28 in a frame shape, and makes it difficult to drop articles placed on the plate-like wall portion 28. In particular, the inclined recess 36 and the rear side 22 of the plate-like wall portion 28 hook an article placed on the rear side and suppress the fall from the rear side of the table main body 12.

  A pair of mounting recesses 38 having a predetermined width and a smaller width than one side of the cup hole 34 are provided near both the left and right sides of the front side 20. In the pair of mounting recesses 38, shaft support members 40 (shaft support portions) that rotatably support the table main body 12 on the sheet S are disposed.

  As shown in FIGS. 2 to 4, the pair of shaft support members 40 project from the shaft support base portion 42 inserted into the mounting recess 38 of the table body 12 and the lower side of the shaft support base portion 42. And a protruding fixing portion 44 fastened to the sheet S. The shaft support base 42 is formed to have a slightly smaller width than the mounting recess 38, and the rear side is formed so as to draw an arc. A bearing hole 42a (see FIG. 4) extending in the left-right direction is provided inside the shaft support base 42. The bearing hole 42a penetrates both side surfaces of the shaft support base 42, and a wire frame 46 described later is inserted therein. A washer (not shown) having a large frictional force may be disposed in the gap between the shaft support base 42 and the mounting recess 38.

  The protrusion fixing portion 44 is formed thinner than the shaft support base portion 42 and is smoothly connected to the shaft support base portion 42. A fastening hole 44 a into which a fastening bolt (not shown) is inserted is formed at the center of the protruding and fixed portion 44 in the vertical and horizontal directions. The thus configured shaft support member 40 is firmly fixed to the sheet S by fastening bolts inserted into the fastening holes 44a, and the table main body portion 12 is supported by the shaft support base portion 42 via the wire frame 46. To do.

  As shown in FIG. 4, a wire frame 46 and a cover 14 are provided on the back surface (lower surface) of the table main body 12 in order to improve rigidity. Therefore, as shown in FIG. 5, a rib 48 that supports the wire frame 46 and a boss portion 50 (positioning convex portion) for attaching the cover 14 are integrally formed on the back surface of the table main body portion 12. . A plurality of ribs 48 are provided at positions overlapping the surrounding portion 30 of the table main body portion 12 (that is, along the outer periphery), and a portion that is valley-shaped by the surrounding portion 30 between the plate-like wall portion 28 and the outer peripheral wall 32. It is formed so as to cross. The rib 48 reinforces the surrounding portion 30 and the outer peripheral wall 32 by being orthogonally connected to the inner side of the surrounding portion 30 and the inner side of the outer peripheral wall 32.

  Further, the rib 48 protrudes downward from the back surface of the table main body portion 12 with a protrusion amount lower than that of the outer peripheral wall 32 and the boss portion 50, and the protruding end portion 48 a contacts the wire frame 46. The rib 48 is deformed when the wire frame 46 is pressed when the folding table 10 is assembled, and is a deformed portion where the wire frame 46 is disposed. In this way, by deforming the rib 48 as the wire frame 46 is pushed in, the rib 48 conforms to the shape of the wire frame 46, and the positional deviation of the wire frame 46 can be prevented well. The protruding end 48a of the rib 48 may be originally formed in a shape in which the arrangement part of the wire frame 46 is lower than the non-arrangement part (see FIG. 9). Thereby, arrangement | positioning of the wire frame 46 becomes still easier.

  On the other hand, a plurality (12 in the present embodiment) of the boss portions 50 are provided along the outer peripheral wall 32 of the table main body portion 12. In this case, the six bosses 50 are arranged in the left-right symmetrical position with respect to the left-right direction center of the table main body 12 corresponding to the left-right symmetry of the folding table 10. Specifically, the first and second boss portions 50A and 50B sandwiching the mounting recess 38 near the front side 20, the third boss portion 50C positioned slightly forward near the side 24, and the side 24 A fourth boss portion 50D near the corner of the rear side 22 and fifth and sixth boss portions 50E and 50F along the rear side 22 are included. The first and second boss parts 50 </ b> A and 50 </ b> B are provided on the wide front side 20, while the third to sixth boss parts 50 </ b> C to 50 </ b> F are provided on the plate-like wall part 28 adjacent to the surrounding part 30. Further, the second boss portion 50B is a positioning projection for positioning a pressing member 74 described later together with the fastening of the cover 14. Further, the sixth boss portion 50F is configured to integrally fasten (fasten together) the folding mechanism portion 18 as the cover 14 is fastened.

  The first to sixth boss portions 50 </ b> A to 50 </ b> F have a cylindrical portion 52 having a female screw hole 52 a in the center portion, and a plurality of boss supports that protrude radially outward from the outer peripheral surface of the cylindrical portion 52 in the radial direction of the cylindrical portion 52. And ribs 54. A fastening screw 56 (see FIG. 4) is screwed into the female screw hole 52 a of the cylindrical part 52 through the cover 14 in the assembled state of the folding table 10. The boss support rib 54 reinforces the upright posture of the cylindrical portion 52 by continuing to the plate-like wall portion 28 or the surrounding portion 30.

  Further, the portion constituting the mounting recess 38 on the front side 20 of the table body 12 is continuous with the outer peripheral wall 32 and is a pair of support walls 58 that bend the outer peripheral wall 32 and protrude rearward. . The pair of support walls 58 are reinforced in an upright state by support wall ribs 60. The pair of support walls 58 are notched with support grooves 58a through which the wire frame 46 is inserted and supported.

  Further, on the rear side of the pair of support walls 58, a pair of shaft support pieces 62 (shaft support portions) that pivotally support the cup holder 16 are formed to protrude. The pair of shaft support pieces 62 is formed in a plate shape having a sufficient thickness in the left-right direction, and a shaft support hole 62a is provided along the thickness direction at the center. Each shaft support piece 62 is reinforced in an upright state by a shaft support piece rib 64 connected to the shaft support piece 62 and the plate-like wall portion 28. Further, an abutting rib 66 with which the cup holder 16 contacts is formed between the pair of shaft support pieces 62 and on the front side. The abutment rib 66 is formed lower than the shaft support piece 62 and has a line segment abutment portion 66a extending in the left-right direction and a cross shape provided on the front side at both left and right ends of the line segment abutment portion 66a. It is comprised by the cross contact part 66b.

  Furthermore, a pair of attached portions 68 for positioning and temporarily fixing the cover 14 when the cover 14 is assembled is provided inside the pair of cup hole portions 34. The attached portion 68 constitutes a fixing mechanism 67 for fixing each other together with a hook portion 122 of the cover 14 described later. As shown in FIG. 11, the mounted portion 68 has a rectangular shape, and is configured by three walls whose inner portions are opened, and an engagement wall 69 connected to the protruding end of each wall. As a result, the attached portion 68 is continuous with the plate-like wall portion 28 with sufficient strength. A locking port 69a is formed in the engagement wall 69 of the mounted portion 68, and the hook portion 122 of the cover 14 is locked to the locked port 69a.

  Furthermore, the plate-like wall portion 28 includes a pair of mechanism screwing portions 70 for screwing the folding mechanism portion 18 inside the pair of attached portions 68 and a positioning portion for attaching the folding mechanism portion 18. And a projection 72 serving as The mechanism screwing portion 70 is formed in the same shape as the boss portion 50. In addition, although illustration is abbreviate | omitted, in order to improve the rigidity of the plate-shaped wall part 28, in order to improve the rigidity of the plate-shaped wall part 28, the several rib for reinforcement extended in linear form over the front-back direction or the left-right direction may be provided in parallel.

  As shown in FIG. 6, a wire frame 46 (reinforcing portion) is disposed on the back side of the table main body 12 as shown in FIG. 6. The wire frame 46 is a circular rod-shaped member in an axial cross-sectional view, and is provided so as to be continuous along the outer periphery of the table body 12. That is, the wire frame 46 is formed so that the circumference portion is in the same plane corresponding to the surface direction of the table main body portion 12.

  The wire frame 46 is preferably formed to be solid with a constituent material so that the table main body 12 can be sufficiently reinforced, and has a sufficient thickness and does not easily undergo plastic deformation. The constituent material of the wire frame 46 is not particularly limited, but a hard metal material may be applied. For example, examples of the metal material include iron, iron alloy, alloy steel, copper, copper alloy, aluminum, aluminum alloy, nickel alloy, and magnesium alloy. The wire frame 46 may be made of not only a metal material but also a resin material. Moreover, the wire frame 46 is not limited to a solid shape, and may be formed in a tubular shape having a hollow portion therein.

  The wire frame 46 is also formed symmetrically with the table body 12. Specifically, the wire frame 46 includes a rear side extending portion 46a, a rear side inclined portion 46b, a side side extending portion 46c, a front side inclined portion 46d, and a front side shaft portion 46e.

  The rear side extending part 46a is a part that is located on the rear side 22 of the table main body part 12 in an assembled state, and that extends linearly along the rear side 22, and is inclined rearward at both left and right end parts. The part 46b continues. The rear inclined portion 46b is a portion that is bent at a predetermined angle from the rear side extending portion 46a and extends short, and a side side extending portion 46c is provided at the end opposite to the connecting end portion of the rear side extending portion 46a. It will be a series. The side extension part 46c is located on the side 24 of the table body 12 and extends linearly along the side 24 in a direction orthogonal to the rear extension 46a. Tilted. A front inclined portion 46d is connected to an end of the side extending portion 46c opposite to the connecting end of the rear inclined portion 46b. The front inclined portion 46d is a portion that is bent at a predetermined angle from the side extending portion 46c and extends short, and the front side shaft portion 46e is connected to the end opposite to the connecting end of the side extending portion 46c. The front side shaft portion 46e is located on the front side 20 of the table main body 12 and extends short along the front side 20, and is inclined in a direction orthogonal to the side extension portion 46c.

  The front side shaft portion 46e is disposed so as to bridge the support walls 58 through the support grooves 58a of the pair of support walls 58 of the table main body portion 12. In other words, the wire frame 46 constitutes a pivot portion of the table main body 12 within the mounting recess 38. When the folding table 10 is assembled, the front support shaft portion 46e is inserted into the bearing hole 42a of the support member 40 so that the support member 40 can turn the wire frame 46 freely. Then, the wire frame 46 is disposed in the support groove 58a of the pair of support walls 58, and the cover 14 is placed in a state where the shaft support member 40 is disposed in the mounting recess 38, so that the shaft support member 40 causes the table main body 12 to be covered. It is supported so that it can rotate.

  Further, when the wire frame 46 is disposed on the table body 12, the wire frame 46 can be positioned by the second to sixth boss portions 50 </ b> B to 50 </ b> F. Specifically, the front inclined portion 46d is positioned inside the second boss portion 50B, and the connecting portion of the front inclined portion 46d and the side extending portion 46c is positioned outside the third boss portion 50C. . Further, the rear inclined portion 46b is positioned inside the fourth boss portion 50D, and the rear side extending portion 46a is positioned outside the fifth and sixth boss portions 50E and 50F. That is, the second to sixth boss portions 50B to 50F are provided so as to sandwich the inner side and the outer side of the side surface in the extending direction of the wire frame 46, and the wire frame 46 is displaced in the surface direction of the table main body portion 12. Strongly deterred. As a result, the wire frame 46 does not directly contact the outer peripheral wall 32.

  The rib 48 of the table main body 12 supports the wire frame 46 at the projecting end portion 48a while being deformed in a minute amount as the wire frame 46 is pushed in during assembly. As a result, the wire frame 46 is also arranged at a predetermined distance from the surrounding portion 30 (the front side 20, the side side 24, and the rear side 22). Therefore, the wire frame 46 does not directly contact the plate-like wall portion 28, the surrounding portion 30 and the outer peripheral wall 32, and the plate-like wall portion 28, the surrounding portion 30 and the outer peripheral wall 32 are damaged by the vibration of the wire frame 46 itself. It can be avoided.

  In addition, a pair of pressing members 74 are attached to the table body 12 in the assembled state, near the front side 20 of each inclined side 26 and outside the respective mounting recesses 38. The pair of pressing members 74 are provided so that the axial center portion is directed in the left-right direction, and allows the user to recognize the rotation base point of the table body 12 (see also FIG. 2). As shown in FIG. 7, the pressing member 74 includes a disk-shaped head 76, a columnar part 78 that continues to the head 76 and protrudes a predetermined length, and a pressing part that continues to the columnar part 78 and actually presses the wire frame 46. 80. A part of the head portion 76 and the cylindrical portion 78 is exposed to the outside through the exposure holes 26 a of the pair of inclined sides 26.

  The holding portion 80 is connected to the cylindrical portion 78 and has a mounting portion 82 formed in an outer shape larger than the cylindrical portion 78, and a flat plate protrusion extending along the axial center of the cylindrical portion 78, connecting to one surface (lower surface) of the mounting portion 82. Part 84. A mounting hole 86 is formed in the mounting portion 82 along the vertical direction. The pressing member 74 is assembled to the table main body 12 by fitting the mounting hole 86 into the cylindrical portion 52 of the second boss portion 50B.

  The mounting portion 82 has a pair of end surfaces 82a (surface portions) that are formed in a substantially triangular shape on the side opposite to the connecting portion of the cylindrical portion 78 and have two isosceles sides in a plan view. One of the pair of end faces 82a is inclined within a range of 30 ° to 60 ° with respect to the axis of the pressing member 74, for example, along the inclination angle of the front inclined portion 46d with respect to the front side shaft portion 46e of the wire frame 46. Formed. As a result, when the end face 82a faces the front inclined portion 46d of the wire frame 46 and the wire frame 46 vibrates, the end face 82a can receive the wire frame 46.

  The flat plate protrusion 84 protrudes larger than the end surface 82 a and reaches a position close to the support wall 58. The flat plate protrusion 84 forms a space between the table main body 12 and the wire frame 46 is disposed in this space. The flat plate protrusion 84 comes into contact with the outer peripheral surface of the wire frame 46 and presses the wire frame 46 against the table main body 12 side, thereby suppressing vertical vibration of the wire frame 46.

  That is, the pressing member 74 suppresses the movement of the wire frame 46 in the vicinity of the front side shaft portion 46 e of the wire frame 46. Thereby, the table main-body part 12 can be stably rotated with respect to the wire frame 46 which functions as a rotation axis of the folding table 10.

  The reinforcing portion that reinforces the table main body 12 is not limited to the configuration of the wire frame 46 described above. For example, a wire frame formed in a plate shape (a quadrangular shape or a polygonal shape in an axial sectional view) may be applied. Further, at the time of injection molding of the table body 12, the wire frame 46 may be arranged in advance and injection molding (insert molding) may be performed so that the table body 12 and the wire frame 46 are integrally molded. In the insert molding, the reinforcing portion may be configured by integrally molding with a material different from the constituent material of the table body 12 (for example, a material having high rigidity) without applying the wire frame 46. Further, the reinforcing portion may be configured to be reinforced for each portion by being separated so as to correspond to the front side 20, the side side 24, the rear side 22, and the like, for example.

  Returning to FIG. 4, the cover 14 attached to the table main body 12 is configured to partially cover the back side of the table main body 12. The cover 14 is formed in a shallow bowl shape including a bottom portion 88 formed in a flat shape, and a curved wall portion 90 that is connected to the side edge of the bottom portion 88 and is curved from the bottom portion 88 and protrudes upward. As the constituent material of the cover 14, those mentioned as the constituent material of the table main body 12 can be favorably applied.

  The protruding height on the outer peripheral side of the curved wall portion 90 is set lower than that on the inner side, and a fitting wall 92 is formed at the upper end portion of the curved wall portion 90 as shown in FIG. The fitting wall 92 has a thin plate shape by cutting the outer peripheral side with respect to the curved wall portion 90, and is continuous along the extending direction of the curved wall portion 90. In addition, as shown in FIG. 9, the fitting wall 92 is formed in a triangular shape whose cross-sectional shape is thick on the base side continuous to the curved wall portion 90 and on the protruding end side is thin, The outer peripheral surface side is a tapered surface. The fitting wall 92 is inserted inside the outer peripheral wall 32 of the table body 12 in the assembled state of the folding table 10.

  Here, the table main body 12 has a fitting groove 94 (gap) by notching the contact portion between the plurality of ribs 48 and the outer peripheral wall 32 and the vicinity thereof. The fitting wall 92 of the cover 14 is inserted into the fitting groove 94 as the table main body 12 and the cover 14 are fitted. As a result, the folding table 10 is prevented from being displaced in the surface direction of the table main body 12 and the cover 14, and the outer peripheral wall 32 and the curved wall 90 are in good contact with each other.

  Further, as shown in FIG. 8, the cover 14 is also provided with a plurality of cover ribs 96 protruding upward from the bottom 88. Each of the cover ribs 96 is integrally formed with the cover 14 so as to extend between a pair of curved wall portions 90 that are continuous with the bottom portion 88 interposed therebetween. The protrusion height of the cover rib 96 is formed so that the height of the protrusion end portion varies between the arrangement portion and the non-arrangement portion of the wire frame 46, similarly to the rib 48 of the table main body portion 12. Thereby, the wire frame 46 can be easily arranged in cooperation with the table main body 12.

  The cover 14 is a pair of the rear cover portion 100 extending along the rear side 22 of the table main body portion 12 and a pair of covers 14 extending forward from the rear cover portion 100 and covering the periphery of the cup hole 34 in a plan view. Of the partial covering portion 102. The rear cover 100 is formed in the same shape as the rear side 22 of the table main body 12 and the corners of the rear side 22 and the side 24 and is arranged on the rear side 22 side of the table main body 12. Coating. A plurality (six in total) of screw hole portions 104 corresponding to the respective pair of fourth to sixth boss portions 50D to 50F are formed at predetermined positions of the rear side covering portion 100 (bottom portion 88). On the back side of the cover 14, a seat 106 is formed on the periphery of the screw hole 104 so as to protrude inward (upward) from other parts of the bottom 88. The head of the fastening screw 56 is disposed on the seat 106 in the assembled state of the folding table 10.

  Further, the rear covering portion 100 is an intermediate portion in the left-right direction, and is connected to the rear wide covering portion 108 that covers the rear portion of the folding mechanism portion 18, and both sides of the rear wide covering portion 108, and is located in front of the rear wide covering portion 108. And a pair of rear narrow covering portions 110 formed to have a short width in the direction.

  The rear wide covering portion 108 has a convex portion 112 at a substantially intermediate portion in the front-rear direction of the rear wide covering portion 108 over a predetermined length in the left-right direction. The convex portion 112 enhances the rigidity of the rear side covering portion 100 and can contact the sheet S side in the accommodated state of the folding table 10 to alleviate the impact on the cup holder 16. In addition, on the upper surface side of the rear wide covering portion 108 (particularly, the convex portion 112), a locking portion (not shown) that can position and temporarily fasten the cover 14 to the body side mounting member 160 of the folding mechanism portion 18 described later. It is good to have.

  The rear narrow covering portion 110 is formed narrow on the left and right sides of the rear wide covering portion 108 corresponding to the installation position of the cup holder 16 so that the cup holder 16 can be accommodated in the front portion thereof. A space 114 is formed.

  On the other hand, the pair of partial covering portions 102 are formed symmetrically with respect to the pair of left and right cup holes 34. Each partial covering portion 102 is divided into a side covering portion 116 that bypasses the outside of the cup holder 16 and an inner covering portion 118 that bypasses the inside of the cup holder 16 in order to accommodate the cup holder 16. The accommodation space 114 is formed between the side covering portion 116 and the inner covering portion 118.

  The side cover portion 116 extends from the rear cover portion 100 along the side edge 24 of the table main body portion 12 and further reaches the front side 20 of the table main body portion 12. The width of the side covering portion 116 in the left-right direction is relatively narrow so as to cover the wire frame 46. A screw hole 104 is formed in the middle of the front side of the side cover portion 116. The side covering portion 116 has another screw hole 104 at the extending front portion, and a front covering portion 120 (fixed portion) that protrudes inward toward the position corresponding to the mounting recess 38. Prepare.

  The inner covering portion 118 is formed wider in the left-right direction than the side covering portion 116 and passes forward through the peripheral portion of the cup hole 34. A hook portion 122 that protrudes upward is provided at a middle portion in the front-rear direction of the inner covering portion 118. The hook portion 122 is formed at a position corresponding to the locked port 69 a of the table body 12, and a claw portion 122 a that bends in the left and right outer direction in the inserted state of the locked port 69 a is hooked on the engaging wall 69. It has a configuration.

  In addition, a front cover portion 120 (fixed portion) that slightly protrudes in the outer direction is provided at the extending front portion of the inner cover portion 118, and a screw hole 104 is formed in the front cover portion 120. Yes. Further, the inner edge near the front side of the inner covering portion 118, that is, the opposite side of the front covering portion 120 is a notched portion 124 in which the partial covering portion 102 is notched. The pair of partial covering portions 102 has a wide space at the front center portion of the cover 14 by a pair of cutout portions 124.

  As shown in FIG. 4, in the assembled state of the folding table 10, the pair of cup holders 16 are positioned in the accommodating space 114 of the pair of partial covering portions 102, and the cover 14 is attached to the table main body portion 12. . When the cover 14 is attached, the hook portion 122 provided on the inner covering portion 118 is inserted into the attached portion 68 and caught, and the cover 14 is temporarily fastened to the table main body portion 12 first. In this temporarily fastened state, the screw holes 104 of the cover 14 and the first to sixth boss portions 50A to 50F overlap in the vertical direction, and can be easily screwed with the fastening screws 56.

  The cover 14 is firmly fixed to the table main body 12 in a state where the cover 14 is screwed to the first to sixth bosses 50 </ b> A to 50 </ b> F by the fastening screws 56, and increases the rigidity of the table main body 12. In particular, the rigidity of the rotating portion of the table body 12 can be increased by fixing (screwing) the front side 20 of the table body 12 with the front cover 120. Further, by covering the periphery of the cup holder 16 with the partial covering portion 102, the rigidity around the cup holder 16 that is likely to be loaded from an article is emphasized, and weight reduction is promoted by not covering other portions. Furthermore, since the wire frame 46 is hidden by covering the wire frame 46 with the rear covering portion 100 and the side covering portion 116, the aesthetic appearance of the folding table 10 is improved.

  Next, the cup holder 16 of the folding table 10 will be described. As shown in FIG. 2, the cup holder 16 is rotatably attached to the table body 12, and shifts between an accommodation state and an article holding state by a user operation. In the accommodated state, the cup holder 16 is located entirely on the table main body 12 side, and most of the cup holder 16 is disposed in the accommodating space 114 (see FIG. 4) of the cover 14. In addition, it is good to arrange | position the buffer members 126, such as sponge which softens the impact at the time of accommodation of the cup holder 16 in the position where the rotation distal end of the cup holder 16 of the table main-body part 12 contacts (refer FIG. 4). . On the other hand, in the holdable state, the cup holder 16 rotates about the upper end portion, so that the rotation distal end is separated from the table main body portion 12 by a predetermined interval.

  Specifically, as shown in FIGS. 6 and 10, the cup holder 16 is connected to the holder main body 130 formed in a substantially rectangular shape and the table main body 12 extending continuously from one side of the holder main body 130. Extending part 132.

  The holder main body 130 rotates using the extending portion 132 as a rotation base point, and contacts (closes) or separates from the back surface of the table main body 12. The holder main body portion 130 includes an outer frame portion 134 that constitutes the outer peripheral edge of the holder main body portion 130, and a support plate portion 136 that is formed flat inside the outer frame portion 134 and that contacts and supports the bottom portion 88 of the article. . Further, a substantially rectangular space 138 is formed in a portion surrounded by the inside of the outer frame portion 134 of the holder main body 130 and in the front portion of the support plate portion 136.

  The outer frame portion 134 is formed in a shape corresponding to the peripheral edge of the cup hole portion 34, and has an appropriate thickness depending on the part in order to stably support the support plate portion 136 located on the distal side. Configured. Specifically, a tip low wall portion 140 that protrudes low and continues to the outer peripheral edge of the support plate portion 136, a pair of arm wall portions 142 that are continuous to the tip low wall portion 140 and have a vertical width larger than the tip low wall portion 140, A connecting wall portion 144 connected to the extending portion 132 and connected to the arm wall portion 142.

  The tip low wall portion 140 protrudes so as to spread obliquely upward with respect to the support plate portion 136, and the support plate portion 136 is continuous with the front side thereof. The tip low wall portion 140 corresponds to the rotating distal end of the cup holder 16. The tip low wall portion 140 is formed obliquely, so that the article inserted into the cup hole 34 is guided to the support plate portion 136 and the positional deviation from the support plate portion 136 is suppressed.

  The pair of arm wall portions 142 are inclined at a predetermined angle (for example, 120 ° to 150 °) with respect to the support plate portion 136 and the distal end low wall portion 140 and extend a predetermined length toward the connecting wall portion 144. . A space portion 138 is formed between the pair of arm wall portions 142. The space 138 is provided to allow an article placed on the cup holder 16 regardless of the outer shape of the article. On the lower side of the pair of arm wall portions 142, a support reinforcing portion 142a is formed, which is arcuate and slightly protrudes inward (space portion).

  The connecting wall 144 is connected to the proximal end of the arm wall 142 and extends in the left-right direction, and the vertical width thereof is designed to be larger than the vertical width of the arm wall 142. A peripheral surface constituting the space portion 138 of the connecting wall portion 144 is inclined by a predetermined angle (for example, 120 ° to 150 °, that is, approximately 90 ° to the support plate portion 136) with respect to the space portion 138. The side wall 148 of the extending part 132 is connected to the peripheral surface of the connecting wall part 144 opposite to the space part 138, while the upper wall 146 of the extending part 132 is connected to the upper edge part of the connecting wall part 144.

  The extending portion 132 extends linearly along the extending direction of the pair of arm wall portions 142, and the proximal end side thereof is rotatably connected to the table main body portion 12, whereby the holder main body portion 130. Support. The extending portion 132 has a flat plate-like upper wall 146 and a side wall 148 that continues to the lower surface side of the upper wall 146 and projects downward by a predetermined height.

  The upper wall 146 has a distal end formed to be wide in accordance with the upper edge of the connecting wall 144, gradually narrowing upward, and extending upward from the middle position with the same width. Yes. At the upper end of the upper wall 146, there is provided a stopper portion 150 that comes into contact with the back surface of the table main body portion 12 in a state where the cup holder 16 can be held (the holder main body portion 130 is separated from the table main body portion 12).

  The stopper portion 150 is bent and connected to the upper wall 146 by a predetermined angle (for example, 210 ° to 230 °, that is, parallel to the support plate portion 136). The upper surface of the stopper portion 150 is formed flat. As shown in FIG. 11, a pair of holder-side ribs 152 is provided on the lower surface of the stopper portion 150. The pair of holder-side ribs 152 are integrally formed on the back surface side of the upper wall 146 and extend linearly between the connecting wall portion 144 and the stopper portion 150. Thereby, the holder side rib 152 reinforces the upper wall 146 and the stopper part 150, and suppresses the deformation | transformation with respect to the load of an up-down direction.

  As shown in FIGS. 10 and 11, a slit 154 (deformation promoting portion) that promotes displacement toward the inside of the upper wall 146 between the pair of holder side ribs 152 near the upper portion of the upper wall 146, that is, between the pair of holder side ribs 152. ) Is cut out. The slit 154 is designed to have a predetermined width (for example, about 1/6 to 1/9 with respect to the width of the upper wall 146), and is positioned below a position where a holder-side convex portion 156 described later is formed from the stopper portion 150. Is formed.

  On the other hand, the pair of side walls 148 protrudes downward from the upper edge of the upper wall 146 by a predetermined amount, and the lower side of each side wall 148 also extends in parallel to the connecting wall portion 144 with the left and right widths above the upper wall 146. Are connected. Near the upper end of each side wall 148, a holder-side convex portion 156 (rotation support portion) is formed to protrude outward in the width direction. The pair of holder-side convex portions 156 protrudes from the side wall 148 with a dimension shorter than the half width of the slit 154.

  When the cup holder 16 is assembled, a washer (not shown) for improving the frictional force is fitted around the holder-side convex portion 156, and the holder-side convex portion 156 is inserted into the pair of shaft support holes 62a. It is supported by each shaft support piece 62. With this washer, the cup holder 16 is supported with a relatively strong frictional force with respect to the table main body 12. Therefore, the cup holder 16 maintains a relative position (posture) with the table body 12 in a state where the user does not rotate the cup holder 16. Further, when the cup holder 16 is rotated and the support plate portion 136 becomes parallel to the surface direction of the table main body portion 12, the stopper portion 150 comes into contact with the back surface side of the table main body portion 12, and more. Is restricted.

  As described above, the abutment ribs 66 (the line segment abutment portion 66a and the cross abutment portion 66b) are integrally formed on the back surface of the table body 12 (see also FIG. 5). In the unfolded state, the stopper portion 150 contacts the line segment abutting portion 66a, and the upper end portion of the side wall 148 contacts the cross abutting portion 66b. Thereby, the rotation of the cup holder 16 is restricted by the abutment rib 66.

  Further, when a strong external force (loading operation, pulling, impact, or load such as placing a heavy object on the cup holder 16) is applied to the cup holder 16, the upper end of the cup holder 16 is located inside the rotation axis. Bend easily. As a result, the holder-side convex portion 156 comes out of the shaft support hole 62a of the shaft support piece 62, and the cup holder 16 is removed from the table main body portion 12 relatively easily.

  In addition, the deformation | transformation promotion part which deform | transforms the cup holder 16 is not limited to the slit 154, Various structures, such as providing a hole in the upper wall 146 or providing a thin part, are applicable. In particular, the deformation promoting part (slit 154, hole, thin part, etc.) is preferably provided so as to continue to the edge of the cup holder 16 (with an opening or the like). Thereby, a deformation | transformation can be promoted from the edge part of the cup holder 16, and a smooth deformation | transformation is made.

  Next, the folding mechanism unit 18 of the folding table 10 will be described with reference to FIGS. The folding mechanism unit 18 is a structural unit that supports the table main body 12 so as to be rotatable with respect to the sheet S (movable between a storage state and an unfolded state). The folding mechanism unit 18 includes a main body side mounting member 160, a support frame 162, and a seat side mounting member 164 (connection support unit).

  As shown in FIGS. 6 and 12, the main body side attaching member 160 is a flat plate-like member attached to the intermediate part and the rear part side of the table main body part 12 and has a substantially rectangular shape in plan view. The main body side mounting member 160 includes a contact plate portion 166 that is fixed in direct surface contact with the plate-like wall portion 28, and a central plate portion 168 that protrudes slightly from the contact plate portion 166 and is spaced apart by a predetermined distance and extends in the front-rear direction. And a pair of side plate portions 170. A gap 172 having a width substantially equal to the outer diameter of the support frame 162 is formed between the contact plate portion 166, the center plate portion 168, and the pair of side plate portions 170, and the support frame 162 is inserted into the gap 172. .

  The contact plate part 166 improves the rigidity of this part by making surface contact with the intermediate part and the rear part at the central part in the left-right direction of the table main body part 12. Further, on the upper surface of the contact plate portion 166, a hole portion (not shown) into which the protrusion 72 can be inserted is provided at a position overlapping the protrusion 72 of the table main body portion 12.

  The central plate portion 168 and the pair of side plate portions 170 are formed in a rectangular shape that is long in the front-rear direction in plan view, and the gap is long in the front-rear direction according to the lengthwise dimensions of the central plate portion 168 and each side plate portion 170. It is formed. A positioning plate portion 174 that protrudes lower than the central plate portion 168 and the side plate portion 170 is connected to the rear side of the plate-like wall portion 28. The positioning plate portion 174 extends in the left-right direction, and a pair of U-shaped grooves 174a that open toward the rear are provided at predetermined positions on both sides in the left-right direction.

  On the front side of the pair of side plate portions 170, a protruding connection portion 176 that protrudes downward from the contact plate portion 166 and is slightly lower than the side plate portion 170 is provided. The pair of side plate portions 170 extend away from the contact plate portion 166 by a gap 172 because the front end portion is continuous with the upper surface of the projecting connecting portion 176 and the rear end portion is continuous with the positioning plate portion 174. Further, a screw hole 178 and a seat 178a are formed on the protruding surface of the protruding connecting portion 176. The body-side attachment member 160 positions the U-shaped groove 174a in the sixth boss part 50F while fitting the hole in the protrusion 72 when the table body part 12 is attached. As a result, the screw hole 104 overlaps the mechanism screwing portion 70 of the plate-like wall portion 28. In this state, the cover 14 is covered and the fastening screw 56 is fastened to the sixth boss part 50F and the mechanism screwing part 70 through each screw hole 104, thereby being firmly fixed.

  The support frame 162 of the folding mechanism unit 18 is a series of rod-like members inserted into both the main body side mounting member 160 and the seat side mounting member 164. For example, the metal materials mentioned as the constituent materials of the wire frame 46 are applied. obtain. The support frame 162 is formed with a smaller diameter than the wire frame 46, and is elastically deformed when a strong operation force (a force for rotating the table body 12) is applied from the user.

  The support frame 162 includes a rear bar portion 180 that extends in the left-right direction on the rear side, a pair of extension rod portions 182 that are connected to both ends of the rear bar portion 180 and extend forward, and a pair of extension rod portions 182. And a pair of front bar portions 184 that are bent from the front portion of the front and slightly protrude outward. The rear bar portion 180 is formed into a central concave portion 180a whose center portion in the left-right direction is recessed forward and a linear portion 180b continuous to both sides of the central concave portion 180a in plan view. The central concave portion 180 a is inserted into the gap 172 of the central plate portion 168 of the main body side attachment member 160, and the pair of linear portions 180 b are inserted into the gap 172 of the pair of side plate portions 170. As a result, the central concave portion 180a is pressed by the central plate portion 168 so as not to rotate, while the central concave portion 180a and the straight portion 180b are slidably held back and forth by the gap 172 that is long in the front-rear direction. The folding table 10 can smoothly rotate the table body 12 by sliding the support position of the table body 12 by the support frame 162 in the stored state and the unfolded state.

  The pair of extending rod portions 182 extend linearly between the rear rod portion 180 and the front rod portion 184, so that the table main body portion 12 to which the rear rod portion 180 is attached and the front rod portion 184 It connects and supports between the attached sheets S. The pair of extending rod portions 182 are guided to elastic deformation inward by the seat side mounting member 164. Further, the pair of front bar portions 184 are inserted into the receiving grooves 186 of the seat side mounting member 164 by protruding outward from the pair of extending rod portions 182 (see FIG. 14).

  As shown in FIG. 12, the seat side attachment member 164 is attached to the sheet structure SC provided in the seat S together with the shaft support member 40. In this case, the shaft support member 40 rotatably supports the table main body portion 12 with frictional force, whereas the seat side mounting member 164 rotates the table main body portion 12 step by step, and at each step. Has a function of maintaining the displacement position.

  Specifically, the seat side attachment member 164 includes a base portion 188 that is directly attached to the seat S, a pair of cam portions 190 (switching holding portions) that are provided on both left and right sides of the base portion 188 and project rearward, and a base portion 188. And a bulging portion 192 that is provided at the center in the left-right direction and projects rearward.

  The base portion 188 is formed in a substantially rectangular shape that is long in the left-right direction when viewed from the front, and constitutes an end portion in which an arc shape and a trapezoid shape are continuous on both sides in the left-right direction. The base portion 188 includes a base frame portion 194 constituting an outer shape, and a plurality of inner wall portions 196 (attachment portions) whose rear surfaces are formed in a flat shape inside the base frame portion 194.

  The plurality of inner wall portions 196 are formed as a pair on the outer side of the pair of cam portions 190, respectively, on the inner side of the pair of cam portions 190 and on both sides of the bulging portion 192. 2nd wall part 196b. Each inner wall portion 196 is formed to be slightly recessed with respect to the outer frame portion 134, and is provided with a fastening hole 198 into which a fastening bolt (not shown) is inserted. Between the cam portion 190 and the second wall portion 196b, an allowable space 200 that allows the support frame 162 to rotate is formed.

  As shown in FIG. 13, the cam portion 190 includes a dome portion 202 formed in a ¼ sphere shape from the inner wall portion 196, and a guide portion 204 that protrudes in an arc from the dome portion 202. . The dome portion 202 has a function of inserting and holding the support frame 162 inside. As shown in FIG. 14, an accommodation groove 186 that can accommodate the front bar portion 184 of the support frame 162 is formed on the opposite side of the dome portion 202. Reinforcing ribs 186 a that reinforce the wall portions that form the housing groove 186 are provided around the housing groove 186. Further, on the lower side of the dome portion 202, a protruding portion 206 that protrudes from the inner wall portion 196 and connects the cam portion 190 and the outer frame portion 134 is formed to reinforce the cam portion 190.

  The guide portion 204 protrudes from the dome portion 202 so that when the support frame 162 moves up and down by a user operation, the pair of extending rod portions 182 elastically deform along the arc shape of the inner edge 204a. To guide. At this time, the allowable space 200 allows the vertical displacement and the inward elastic deformation of the support frame 162.

  In addition, the guide portion 204 is fixed at the vertical position of the cam portion 190 by fitting the support frame 162 between the arcuate ends of the cam portion 190 and the base frame portion 194. In a state where the cam portion 190 fixes the support frame 162 on the upper side, the support frame 162 is in a posture extending in a substantially horizontal direction, and the folding mechanism portion 18 favorably supports the table main body portion 12 in the unfolded state. On the contrary, in a state where the cam portion 190 fixes the support frame 162 on the lower side, the table main body portion 12 is disposed at a position close to or in contact with the back surface of the sheet S to be stored. In this way, when the cam portion 190 fits the support frame 162, the support frame 162 moves over the guide portion 204 by its shape maintaining force unless a user's operation force is applied even when a heavy article is placed on the table body. The fixed state is continued without performing. On the other hand, if the user applies an operating force over which the support frame 162 gets over the cam portion 190, the support frame 162 moves while being elastically deformed, and switches between fixing on the upper side and fixing on the lower side. As a result, the folding table 10 can switch the unfolded state and the stored state of the table main body 12 in stages.

  On the other hand, the bulging portion 192 is provided at the central portion in the left-right direction of the base portion 188 and is formed to protrude rearward with a larger protruding amount than the cam portion 190. The seat-side mounting member 164 has improved rigidity due to the bulging portion 192, and maintains the shape of the base portion 188 in the left-right direction (plane direction). In the bulging portion 192, the corner portion where the rear surface and the side surface (or the concave portion 208) intersect with each other is formed into a rounded corner (circular arc). Thereby, rigidity further improves.

  In addition, the left and right side surfaces of the bulging portion 192 are provided with concave portions 208 that are recessed inward. The recess 208 is provided at a position corresponding to the fastening hole 198 and faces the fastening bolt when the seat side attachment member 164 is attached. By providing the recess 208 in this manner, the rigidity of the bulging part 192 itself is improved, and as a result, the rigidity of the seat side mounting member 164 is further improved. In addition, the recessed part 208 may be provided not only on the left and right side surfaces of the bulging portion 192 but also on the upper and lower side surfaces of the bulging portion 192 or the rear surface (projecting surface) of the bulging portion 192.

  As shown in FIG. 14, bulging portion ribs 192 a are formed vertically and horizontally inside the bulging portion 192 to improve the rigidity of the bulging portion 192. Further, on the back side of the seat side mounting member 164, a fastening hole protrusion 210 protruding forward is provided around the fastening hole 198. The fastening hole projection 210 reinforces the periphery of the fastening hole 198.

  A pair of projecting portions 212 projecting forward is provided below the pair of fastening hole projecting portions 210 in the second wall portion 196b. The pair of protrusions 212 protrude from the back surface of the base 188 with a sufficient protrusion amount and are provided so as to be aligned with each pair of fastening holes 198. Each protrusion 212 is inserted into the back surface of the sheet S and positions the attachment position (each fastening hole 198) of the sheet side attachment member 164.

  Each protrusion 212 is formed in a cross shape extending short in the vertical direction and the horizontal direction when viewed from the front. Thereby, even if the protrusion part 212 protrudes large, it becomes a thing with high rigidity, and is inserted in the sheet | seat S satisfactorily. In addition, the shape of the protrusion part 212 is not specifically limited, For example, you may form in the pin shape and the cylinder shape as a boss | hub shape. Thus, if it is a boss shape, insertion to the sheet | seat S of the protrusion part 212 will become easy, and workability | operativity will improve further.

  The folding table 10 according to the present embodiment is basically formed as described above. Hereinafter, the effect regarding each structure is demonstrated. First, the wire frame 46 provided in the table body 12 and the configuration related to the wire frame 46 will be described.

  As described above, the folding table 10 is provided with the wire frame 46 along the outer periphery of the table body 12, thereby improving the rigidity of the table body 12. In particular, the wire frame 46 is present on the outer periphery of the table main body 12 that is susceptible to external force, thereby suppressing deformation and breakage on the outer peripheral side due to the external force, and sufficiently reducing the inner portion of the table main body 12. be able to. The folding table 10 is improved in operability and usability due to weight reduction. Furthermore, the folding table 10 is provided with the wire frame 46 inside the table main body 12 so that the upper surface which becomes a design surface when the table main body 12 is unfolded can be freely set (for example, so as to have the inclined recess 36). Can be designed. Therefore, the table main body 12 can be made easier to use. The wire frame 46 is not only covered with the cover 14 but may be exposed on the back surface of the table body 12.

  In this case, the table body 12 is provided with the wire frame 46 on the side 24 of the table body 12 so that the rigidity of the portion that supports the extension from the sheet S side is improved. Therefore, the table main body 12 can sufficiently withstand such a load from a direction orthogonal to the surface direction. In addition to this, the wire frame 46 continuously extends from the side 24 to the front side 20 and the rear side 22, thereby further improving the rigidity of the table body 12.

  If the wire frame 46 is made of a material harder than the table body 12, the folding table 10 can be further reduced in size and weight. The wire frame 46 functions as a rotation shaft of the table body 12 by being rotatably supported by the shaft support member 40. Therefore, the folding table 10 does not have to be separately provided with components that constitute the rotating shaft, and can reduce the number of components and improve the workability of the assembly work.

  Further, the folding table 10 includes the first to sixth boss portions 50A to 50F in the table main body portion 12, whereby the wire frame 46 configured as a separate member can be easily positioned, and the workability of the assembly work is improved. Can be further improved. In this case, the first to sixth boss portions 50A to 50F are brought into contact with the outside and inside of the wire frame 46, thereby suppressing the positional deviation across the wire frame 46 and further improving the workability of the assembly work. Can be made. The configuration for positioning and holding the wire frame 46 is not limited to the fastening portion for attaching the cover 14, but may be configured by a positioning-dedicated projection or the like, or may be provided on the cover 14.

  Further, when the wire frame 46 is assembled, the rib 48 is deformed to match the shape of the wire frame 46 by pressing the wire frame 46 against the rib 48. Therefore, it is possible to suppress displacement between the table main body 12 and the wire frame 46 due to vibration or the like. If the rib 48 is integrally formed with the table main body 12, the number of parts of the folding table 10 is reduced, and workability can be further improved.

  Furthermore, the folding table 10 can further suppress displacement of the wire frame 46 by providing the table main body 12 with a pressing member 74 that holds the wire frame 46. In the folding table 10, the pressing member 74 is attached to the second boss portion 50 </ b> B, whereby the positioning of the pressing member 74 is facilitated, and the workability of the assembly work is improved. Further, since the end surface 82 a of the pressing member 74 is formed along the shape of the wire frame 46, the pressing member 74 can be reduced in size.

  Next, the cover 14 provided on the table body 12 and the configuration related to the cover 14 will be described. The folding table 10 can improve the rigidity of the table body 12 by the fixing mechanism 67 provided on the table body 12 and the cover 14. In particular, since the fixing mechanism 67 is provided between the cup holder 16 and the folding mechanism portion 18, the rigidity of the table main body portion 12 due to the installation of the cup holder 16 is suppressed. Moreover, since the fixing mechanism 67 suppresses the movement of the cover 14 after the cover 14 is attached, the workability of the assembly work can be improved. Further, since the fixing mechanism 67 includes the attached portion 68 and the hook portion 122, the cover 14 and the table main body portion 12 can be easily positioned and temporarily fixed. The fastening operation can be performed efficiently.

  In this case, the cover 14 can improve the rigidity of the cover 14 itself by providing the convex portion 112 between the pair of fixing mechanisms 67. Moreover, the convex part 112 can suppress the load concerning the cup holder 16 from an attachment object by contacting an attachment object in the accommodation state of the folding table 10. FIG. Further, the table main body 12 has a fitting groove 94 (gap) into which the fitting wall 92 of the cover 14 can be inserted between the outer peripheral wall 32 and the rib 48, so that the fitting wall 92 can be inserted into the table in the assembled state. The main body 12 can be sandwiched between the outer peripheral wall 32 and the rib 48. As a result, the movement of the cover 14 with respect to the table body 12 can be suppressed, and the workability of the assembly work can be further improved. Further, the folding table 10 is configured such that the sixth boss portion 50F of the table main body portion 12 fastens the cover 14 and the folding mechanism portion 18 together. As a result, the number of fastening screws 56 can be reduced to reduce the number of parts, and the structure can be simplified and the folding table 10 can be made thinner.

  Furthermore, the cover 14 improves the rigidity of the portion of the table body 12 where the cup holder 16 is formed by covering the peripheral portion of the cup holder 16 with the partial covering portion 102. The front cover portion 120 of the partial cover portion 102 is fixed at the front side 20 of the table main body portion 12, whereby the cover 14 can be firmly fixed, and the rigidity of the entire table main body portion 12 is improved. The pair of partial covering portions 102 are provided with the cutout portions 124, so that the sheet side attachment member 164 of the folding mechanism portion 18 can be guided inside the cutout portions 124 while avoiding the interference of the cover 14. Thereby, the accommodation state of the table main-body part 12 can be reduced in size.

  Next, the cup holder 16 provided in the table main body 12 and the configuration related to the cup holder 16 will be described. The folding table 10 is provided with the slit 154 in the cup holder 16, so that when the cup holder 16 is subjected to a large external force, the cup holder 16 is easily deformed by the slit 154 and guided so as to be easily detached from the table main body 12. be able to. Therefore, deformation of the cup holder 16 and the table body 12 (that is, the entire folding table 10) is suppressed. Further, the cup holder 16 is deformed by the slit 154 and is smoothly attached to the table main body 12 even when the folding table 10 is assembled, so that the workability of the assembly work can be greatly improved.

  In this case, the slit 154 is provided between the pair of holder-side convex portions 156 on the rotation proximal side, so that the cup holder 16 is deformed more smoothly, and the deformation of the entire folding table 10 is further suppressed. Can do. The cup holder 16 can be deformed only in the direction along the rotation axis of the cup holder 16 by providing the holder-side ribs 152 on both sides of the slit 154 in the rotation axis direction. Therefore, the detachment of the cup holder 16 from the table body 12 is further facilitated. The cup holder 16 can improve the rigidity of the cup holder 16 itself by providing the rib 48 continuously to the stopper portion 150.

  Further, since the table body 12 has the abutment rib 66, the rigidity of the table body 12 is improved. Further, when the stopper portion 150 of the cup holder 16 contacts the contact rib 66 in the unfolded state, the load on the table main body portion 12 can be suppressed. Furthermore, since the third boss portion 50C of the table main body 12 is provided between the cup holder 16 and the wire frame 46, it is possible to prevent the wire frame 46 from being displaced and interfering with the cup holder 16.

  Finally, the folding mechanism 18 and the configuration related to the folding mechanism 18 will be described. The seat-side attachment member 164 of the folding table 10 includes a bulging portion 192 between a pair of second wall portions 196b (fastening holes 198) that are directly attached to the sheet S, so that the rigidity of the seat-side attachment member 164 itself is increased. Rise. In particular, since the rigidity of the second wall portion 196b located on both sides of the bulging portion 192 is significantly improved, the seat side mounting member 164 can stably support the table main body portion 12. In addition, since the bulging portion 192 is formed by utilizing the space between the pair of second wall portions 196b, the enlargement of the seat-side mounting member 164 is suppressed, and the table main body portion 12 is favorably folded. be able to.

  In this case, by providing the bulging portion 192 between the pair of cam portions 190, the folding table 10 has improved rigidity in the vicinity of the pair of cam portions 190. If the bulging portion 192 protrudes beyond the pair of cam portions 190, the rigidity of the seat side mounting member 164 is further improved. Therefore, the guide of the support frame 162 and the maintenance of the posture of the support frame 162 by the cam portion 190 can be effectively performed.

  In addition, the seat-side mounting member 164 includes the recessed portion 208 in the bulging portion 192, so that the rigidity of the bulging portion 192 is further increased, and the second wall portion 196b is sufficiently exposed so that the seat-side mounting member using a fastening bolt The fastening of 164 can be easily performed.

  Further, by providing the protrusion 212 on the seat-side attachment member 164, the folding table 10 can be positioned by inserting the protrusion 212 into the sheet S when attaching the sheet-side attachment member 164 to the sheet S. Workability of assembly work is improved. Furthermore, since the protrusion 212 is formed side by side with the fastening hole 198, when the protrusion 212 is inserted into the sheet S, the fastening hole 198 can be positioned more accurately at the fastening position of the sheet S. Workability of assembly work is further improved.

  In the above description, the present invention has been described with reference to preferred embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention. Yes.

DESCRIPTION OF SYMBOLS 10 ... Folding table 12 ... Table main-body part 14 ... Cover 16 ... Cup holder 18 ... Folding mechanism part 28 ... Plate-shaped wall part 30 ... Enclosure part 32 ... Outer peripheral wall 34 ... Hole for cups 40 ... Shaft support member 46 ... Wire frame 48 ... Ribs 50 ... Boss portions 50A-50F ... First to sixth boss portions 66 ... Abutting ribs 68 ... Attached portion 74 ... Holding member 82 ... Mounting portion 82a ... End face 88 ... Bottom portion 90 ... Curved wall portion 92 ... Insertion wall 94 ... Insertion groove 100 ... Rear covering part 102 ... Partial covering part 112 ... Protruding part 120 ... Front covering part 122 ... Hook part 122a ... Claw part 130 ... Holder main body part 132 ... Extension part 150 ... Stopper Portion 152 ... Holder side rib 154 ... Slit 160 ... Main body side mounting member 162 ... Support frame 164 ... Seat side mounting member 190 ... Cam portion 196 ... Inner side wall portion 196a ... First wall portion 96b ... second wall portion 208 ... recess 210 ... fastening hole protrusions 212 ... projecting portion S ... Sheet

Claims (6)

A folding table having a table main body that is foldably attached to an attachment target,
It is connected to the attachment object and has a connection support part that supports the table body part,
The connection support part is
A pair of attachment parts directly attached to the attachment object;
And a bulging portion formed between the pair of attachment portions. In the folding table of Claim 1,
The connection support part has a pair of switching holding parts capable of switching and holding the posture of the table body part,
The folding table is provided between the pair of switching holding portions. The folding table according to claim 1 or 2,
The folding table is characterized in that the bulging portion protrudes from the switching holding portion in the same direction as the switching holding portion. In the folding table of any one of Claims 1-3,
The mounting portion is fastened to the mounting target by a fastening member,
The folding table is characterized in that a concave portion is formed at a position of the bulging portion facing the fastening member. In the folding table of any one of Claims 1-4,
The foldable table is characterized in that a protruding portion that protrudes toward the attachment target is provided on a surface of the connection support portion that faces the attachment target. In the folding table of Claim 5,
The projecting portion is arranged outside the bulging portion and side by side with the attachment portion.

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