Chair with footrest

Abstract

To provide a chair with a footrest capable of suppressing an occurrence of leg pain for people whose feet cannot reach a floor and not interfering people whose feet reach the floor.SOLUTION: A chair with a footrest includes: a base part 20 fixed to a floor F; a support part 30 supported by the base part 20 and extending upward; a seat body having a seating part and supported by an upper end 30b of the support part 30; a footrest 50 having a footrest body portion 52 extending in a direction crossing a vertical direction from the support part 30 side, and being rotatable in a circumferential direction around an axis CL of the support part 30; and a bolt 22 and a through-hole 54 for releasably restricting the rotation of the foot rest 50 in the circumferential direction.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a chair with a leg rest. [Background technology]

[0002] Patent Document 1 discloses a chair used in amusement parlors for pachinko, slot machines, games, etc. The base member of the chair is fixed to the floor with mounting bolts and holds a rod-shaped support member. The support member has a top-end placement section on which the chair is placed and a bottom-end insertion section that is inserted and held in the base member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Registered Utility Model No. 3217118 Summary of the Invention [Problem to be solved by the invention]

[0004] However, a player may sit on a chair with his / her feet not reaching the floor while playing. For example, a pachislot gaming machine has a higher operating position than a pachinko gaming machine, so the height of a chair installed in front of the pachislot gaming machine may be set relatively high to match the gaming machine. In this case, a player may sit on a chair with his / her feet not reaching the floor while playing. Or, even if a chair is installed in front of a pachinko gaming machine, which has a relatively low operating position, if the player is short, the player may sit on the chair with his / her feet not reaching the floor while playing.

[0005] When playing games for long periods of time on chairs used in game centers such as those described in Patent Document 1 with the feet not reaching the floor, there is a risk of pain in the soles of the thighs. One possible solution to this problem would be to provide a foot rest on the rod-shaped support member of the chair on which the feet can be placed, but for people whose feet reach the floor when sitting on the chair (e.g., tall people), the foot rest may be an obstacle.

[0006] Therefore, an object of the present disclosure is to provide a chair with foot rests that can reduce the occurrence of pain in the legs of people whose feet cannot reach the floor, and that does not get in the way of people whose feet can reach the floor. [Means for solving the problem]

[0007] In order to solve the above problems, a chair with foot rest of a first aspect of the present invention comprises a base portion fixed to the floor, a support portion supported by the base portion and extending upward, a seat body having a seating portion and supported on the upper end portion of the support portion, a foot rest having a foot rest main body portion extending from the support portion in a direction intersecting the up-down direction and capable of rotating in a circumferential direction around the axis of the support portion, and a regulating means for releasably regulating the rotation of the foot rest in the circumferential direction.

[0008] A second aspect of the present invention is a chair with a foot rest according to the first aspect, wherein the regulating means has a locking protrusion provided on one of the base portion and the foot rest and protruding toward the other, and a locking recess provided on the other and capable of engaging with the locking protrusion, at least one of the locking protrusions and the locking recesses is provided in plurality, the locking protrusions and the locking recesses restrict the rotation of the foot rest in the circumferential direction relative to the base portion when engaged with each other, and allow the rotation when disengaged from each other, and the circumferential angle of the foot rest can be changed by changing the combination of the locking protrusions and the locking recesses that engage with each other.

[0009] A third aspect of the present invention is a chair with a foot rest of the second aspect, wherein the base portion has a base body and a fixing member for fixing the base body to a floor, the base body has a pillar support portion for supporting the pillar portion, a flange portion extending from the pillar support portion in a direction intersecting the vertical direction, and an insertion hole formed in the flange portion for allowing the fixing member to pass through, the fixing member of the base portion protrudes upward from the flange portion and functions as the locking protrusion, and the locking recess is provided in the foot rest.

[0010] A fourth aspect of the present invention is a chair with a foot rest of the first or second aspect described above, further comprising a cover that covers the support portion from the radial outside, and the foot rest has a cover stopper that protrudes upward and restricts radial movement of the cover relative to the foot rest.

[0011] A fifth aspect of the present invention is a chair with foot rest of the first or second aspect, wherein the radially outer tip side of the foot rest main body is formed in an arc shape centered on the support column side, and the foot rest main body has a foot rest protrusion that is disposed at the tip of the foot rest main body and extends in the circumferential direction while protruding upward.

[0012] A sixth aspect of the present invention is a chair with foot rest of the first aspect, comprising an intermediate member which has a plurality of locking recesses spaced apart from each other in the circumferential direction, the intermediate member being arranged between the base portion and the foot rest and rotatable in the circumferential direction relative to the foot rest, and a rotation restricting means which restricts the rotatable angle of the intermediate member relative to the foot rest within a predetermined range, the base portion having at least one locking protrusion which protrudes towards the intermediate member and is locked in the locking recess, the locking protrusion and the locking recess function as the restricting means which, when locked to each other, restrict the rotation of the foot rest in the circumferential direction relative to the base portion and, when unlocked from each other, allow the rotation, and the circumferential angle of the foot rest can be changed by changing the combination of the locking protrusion and the locking recess which lock to each other.

[0013] A seventh aspect of the present invention is a chair with foot rest of the sixth aspect, wherein the specified range is a range of at least 50% or more when the central angle of adjacent engagement recesses centered on the axis of the support portion is taken as 100%. Effect of the Invention

[0014] According to the present disclosure, it is possible to provide a chair with foot rests that can reduce leg pain for people whose feet cannot reach the floor, and that does not get in the way of people whose feet can reach the floor. [Brief description of the drawings]

[0015] [Figure 1] 1 is a perspective view of a chair with foot rest according to a first embodiment of the present invention; [Diagram 2] 2 is a perspective view of the leg-support chair of FIG. 1 with a seat removed. FIG. [Diagram 3] FIG. 3 is a side view of the chair with leg rest of FIG. 2 excluding the seat body. [Figure 4] 4 is a cross-sectional view taken along the line IV-IV in FIG. 2. [Diagram 5] FIG. [Figure 6] FIG. [Figure 7] FIG. 3 is a perspective view of the chair with leg rest of FIG. 2 with the cover removed. [Figure 8] FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG. 5 . [Figure 9] FIG. 3 is a plan view of the chair with leg rest in FIG. 2. [Figure 10] FIG. 13 is a side view showing a modified example of the chair with foot rest. [Figure 11] FIG. 6 is an exploded perspective view of a base portion, an intermediate member, and a foot rest of a chair with a foot rest according to a second embodiment of the present invention. [Figure 12] FIG. 11 is a plan view of a portion of a chair with leg rest according to a second embodiment. [Figure 13] 13 is a cross-sectional view taken along the line XIII-XIII in FIG. 12. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In each drawing, UP indicates the upper side, FR indicates the front side where the gaming machine is located, and IN indicates the inside of the width direction of the chair with foot rest. In the following description, the front-rear direction means the front-rear direction when the direction toward the gaming machine is the front, and the width direction means the direction perpendicular to both the up-down direction and the front-rear direction. In addition, the left-right direction means the left-right direction when facing the gaming machine. In addition, the axial direction means the direction (up-down direction) of the axis (axis core. The same applies below.) of the support column. In addition, the radial direction means the radial direction centered on the axis of the support column, the inside of the radial direction means the direction toward the axis of the support column, and the outside of the radial direction means the direction away from the axis of the support column. In addition, the circumferential direction means the circumferential direction centered on the axis of the support column.

[0017] A chair with foot rest in one embodiment of the present invention is intended for a player to sit on when playing a gaming machine (not shown) such as a pachinko, pachislot, or other game, and is placed in front of the gaming machine and fixed to the floor in front of the gaming machine.

[0018] FIG. 1 is a perspective view of a chair with leg rest according to a first embodiment of the present invention. FIG. 2 is a perspective view of the chair with leg rest in FIG. 1 with the seat removed. FIG. 3 is a side view of the chair with leg rest in FIG. 2 with the seat removed. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 2. FIG. 5 is a perspective view of a base portion. FIG. 6 is a perspective view of a foot rest. FIG. 7 is a perspective view of the chair with leg rest in FIG. 2 with the cover removed. FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 5. FIG. 9 is a plan view of the chair with leg rest in FIG. 2.

[0019] 1 to 4, a chair with leg rest 10 according to a first embodiment of the present invention includes a base portion 20, a support portion 30, a seat body 40, a foot rest 50, and a cover 60. In the following description, the chair with leg rest 10 will be described with the seat body 40 facing forward.

[0020] As shown in FIGS. 4 and 5, the base portion 20 is a member that is fixed to a floor F to support the support column portion 30, and has a base main body 21 and a bolt 22 (fixing member, locking protrusion, restricting means).

[0021] The base body 21 has a column support part 21a that supports the column part 30, a flange part 21b that spreads out from the column support part 21a in a direction intersecting with the up-down direction, and a bolt insertion hole (insertion hole) 21c formed in the flange part 21b. The column support part 21a and the flange part 21b are integrated.

[0022] The column support part 21a is formed in a cylindrical shape with a bottom that is open upward. The lower end part 30a of the column part 30 is inserted into the internal space 23 of the column support part 21a. That is, the column support part 21a supports the lower end part 30a of the column part 30. The shape of the column support part 21a is not particularly limited as long as it can support the column part 30.

[0023] The flange portion 21b extends outward in the radial direction (direction intersecting the up-down direction) from the outer peripheral surface of the lower end portion of the column support portion 21a. The flange portion 21b in this embodiment is formed in a disk shape. The bolt insertion holes 21c are insertion holes that allow the bolts 22 to be inserted, and a plurality of bolt insertion holes 21c (eight in this embodiment) are formed in the flange portion 21b. The plurality of bolt insertion holes 21c are formed around the column support portion 21a and spaced apart from each other in the circumferential direction. In this embodiment, the plurality of bolt insertion holes 21c are spaced apart from each other at equal intervals in the circumferential direction. In this embodiment, the flange portion 21b is formed in a disk shape, but the shape of the flange portion 21b is not limited thereto, and may be, for example, a rectangular plate shape.

[0024] When fixing the base portion 20 to the floor F, female screws (for example, female screw anchors) are installed (embedded) in advance at predetermined positions on the floor F so as to correspond to the multiple bolt insertion holes 21c of the flange portion 21b. Then, the base main body 21 is placed at the above-mentioned predetermined position on the floor F, and the multiple bolts 22 are inserted into the multiple bolt insertion holes 21c of the flange portion 21b of the base main body 21, and fastened to the female screw anchors of the floor F. In other words, the bolts 22 function as fixing members that fix the base main body 21 to the floor F.

[0025] When the base portion 20 is fixed to the floor F, the head portion 22a of the bolt 22 protrudes upward from the flange portion 21b. Since a circular ring portion 51 (described later) of the foot receiver 50 is disposed above the flange portion 21b, the head portion 22a of the bolt 22 protrudes toward the circular ring portion 51 (described later) of the foot receiver 50 and functions as a locking protrusion. That is, in this embodiment, the base portion 20 has a plurality of bolts 22 (eight in this embodiment) that function as locking protrusions.

[0026] In this embodiment, the bolt 22 is exemplified as a fixing member for fixing the base body 21, but the present invention is not limited to this, and the fixing member may be, for example, a driven nail. In this case, the head of the driven nail may function as the locking protrusion.

[0027] As shown in Figs. 2 to 4, the support column 30 is a support column that extends upward (for example, vertically upward) from the floor F side to support the sheet body 40, and is formed in a rod shape extending in the vertical direction. The lower end portion 30a of the support column 30 is inserted from above into the internal space 23 (see Fig. 5) of the support column support portion 21a of the base body 21 of the base portion 20 and supported by the base portion 20. That is, the support column 30 extends upward while being supported by the base portion 20. The sheet body 40 (see Fig. 1) is attached to the upper end portion 30b of the support column 30. As a result, the upper end portion 30b of the support column 30 supports the sheet body 40. The support column 30 may have a lifting means that can be lifted up and down by gas pressure or the like. The upper end portion 30b of the support column 30 may have a function of supporting the sheet body 40 rotatably around the axis CL of the support column 30. Furthermore, the support portion 30 may have an auto-return function that returns the rotational direction of the sheet body 40 to the front, that is, the front of the gaming machine.

[0028] 1, the seat body 40 has a seating section 41 on which a player sits. In this embodiment, in addition to the seating section 41, the seat body 40 has a backrest section 42 capable of supporting the back of the player seated on the seating section 41. The backrest section 42 stands upward from the rear of the seating section 41. It is to be noted that the backrest section 42 does not necessarily have to be provided on the seat body 40.

[0029] As shown in Figs. 6 to 9, the foot rest 50 is a member on which a player seated on the seating portion 41 can place his / her feet, and is disposed below the seat body 40. Specifically, the foot rest 50 is disposed above the base portion 20. The foot rest 50 is provided so as to be rotatable in the circumferential direction. In this embodiment, the foot rest 50 is supported by the base portion 20 so as to be rotatable in the circumferential direction. The foot rest 50 is capable of changing its circumferential angle about the axis CL of the support portion 30 (the angle (orientation) of the foot rest main body portion 52 described later).

[0030] The foot rest 50 of this embodiment is formed in a plate shape that intersects with the vertical direction. The foot rest 50 has an annular portion 51 located around the support portion 30, and a foot rest main body portion 52 that extends radially outward (in a direction intersecting with the vertical direction) from the annular portion 51. The material of the foot rest 50 is not particularly limited, but it is preferable that the material has a strength that does not break when a load is input from the player's feet. For example, the foot rest 50 may be formed of resin or metal, or may be formed by combining a resin member and a metal member.

[0031] A pillar insertion hole 53 that allows the pillar part 30 to be inserted is formed in the center (radially inside) of the annular part 51. The pillar insertion hole 53 is a circular opening centered on the axis CL of the pillar part 30, and allows the pillar part 30 to be inserted. The pillar insertion hole 53 of this embodiment is formed with a larger diameter than the outer diameter of the pillar support part 21a of the base part 20, and allows the pillar support part 21a to be inserted. The pillar support part 21a of the base part 20 that passes through the pillar insertion hole 53 of the foot support 50 protrudes upward from the pillar insertion hole 53 of the foot support 50.

[0032] The annular portion 51 is an annular portion located around the support insertion hole 53. In this embodiment, the lower surface of the annular portion 51 abuts against the upper surface of the flange portion 21b of the base portion 20, whereby the annular portion 51 is supported from below by the flange portion 21b of the base portion 20. The annular portion 51 has a plurality of (eight in this embodiment) through holes (locking recesses, restriction means) 54 penetrating in the vertical direction. Furthermore, the annular portion 51 in this embodiment has a cover stopper 55 protruding upward.

[0033] The through holes 54 of the annular portion 51 are disposed at positions corresponding to the bolt insertion holes 21c of the flange portion 21b of the base portion 20 and the bolts 22. That is, in this embodiment, eight through holes 54 are provided that are spaced apart from one another (equally spaced apart from one another in this embodiment) in the circumferential direction of the post insertion hole 53. The through holes 54 are formed to a size that allows the head portion 22a of the bolt 22 of the base portion 20 to be inserted from below. That is, the through holes 54 can lock the head portion 22a of the bolt 22. In this embodiment, the size (diameter) of the through holes 54 is slightly larger than the head portion 22a so that a slight play occurs around the head portion 22a when the head portion 22a of the bolt 22 is inserted (see FIG. 8).

[0034] As shown in Fig. 8, when the foot support 50 is supported by the base portion 20, the head portions 22a of the bolts 22 of the base portion 20 are inserted into the through holes 54 of the annular portion 51 of the foot support 50 from below. The head portions 22a of the bolts 22 and the through holes 54 of the foot support 50 are engaged with each other. When the head portions 22a of the bolts 22 of the base portion 20 and the through holes 54 of the annular portion 51 of the foot support 50 are engaged with each other, the rotation of the foot support 50 in the circumferential direction relative to the base portion 20 is restricted. Note that in this embodiment, the through holes 54 are provided as the locking recesses, but they do not need to be through holes. For example, a bottomed hole recessed from below to above may be provided as the locking recesses.

[0035] By lifting the foot support 50 upward from the base portion 20, the engagement between the bolt 22 and the through hole 54 of the foot support 50 can be released. When the engagement between the bolt 22 and the through hole 54 of the foot support 50 is released, the foot support 50 is permitted to rotate in the circumferential direction relative to the base portion 20. Then, by lowering the foot support 50 downward after rotating the foot support 50 in the circumferential direction, the combination of the bolt 22 and the through hole 54 of the foot support 50 that are engaged with each other (hereinafter, sometimes simply referred to as the "engagement combination") can be changed from the state before the rotation. In this embodiment, the head portion 22a of the bolt 22 and the through hole 54 of the foot support 50 are both arranged at equal intervals in the circumferential direction, so that the engagement combination between the bolt 22 and the through hole 54 can be changed.

[0036] The cover stopper 55 protrudes upward from the annular portion 51 and restricts radial movement of the cover 60, which will be described later, relative to the foot support 50. The cover stopper 55 in this embodiment is formed in a wall shape that rises from the annular portion 51 and extends along the circumferential direction. The cover stopper 55 is disposed near the inner side in the radial direction of the lower end of the cover 60 (see FIG. 4). The cover stopper 55 is disposed radially outward from the multiple through holes 54. Note that the shape and position of the cover stopper 55 are not limited to the above, and any shape may be used as long as it can restrict radial movement of the cover 60 by abutting against the cover 60. For example, the cover stopper 55 may be formed in a rod shape that protrudes upward from the annular portion 51. The cover stopper 55 may also be disposed at a position where it abuts against the cover 60 from the outer side in the radial direction. In this embodiment, the cover stopper 55 is provided on the foot support 50, but this is not limited thereto, and the cover stopper 55 may not be provided.

[0037] The foot receiving body 52 is a portion for supporting the player's feet, and extends radially outward from the support 30 side, continuously from the annular portion 51. The foot receiving body 52 extends radially outward from a partial region of the outer circumferential edge of the annular portion 51. In other words, the foot receiving body 52 is not provided over the entire circumferential region centered on the axis CL of the support 30, but is provided only in a partial region in the circumferential direction. In this embodiment, the foot receiving body 52 extends radially outward from a region of the outer circumferential edge of the annular portion 51 that corresponds to approximately half the circumference.

[0038] The foot receiving body 52 of this embodiment is formed in a substantially fan-like shape with the circumferential length increasing as it goes from the annular portion 51 to the radially outward side. As a result, the radially outer tip side of the foot receiving body 52 is formed in an arc shape centered on the axis CL of the support portion 30. The foot receiving body 52 has a foot receiving protrusion 52a that is disposed at the radially outer tip of the foot receiving body 52 and extends in the circumferential direction while protruding upward. The foot receiving protrusion 52a is a portion on which the player mainly places his / her feet. The height position of the upper end of the foot receiving protrusion 52a is located at the highest position in the foot receiving body 52 (see FIG. 4). The shape of the foot receiving body 52 is not limited to a substantially fan-like shape, and any shape that can protrude to a portion of the circumferential area and allow the foot to be placed thereon can be applied.

[0039] In this embodiment, a rising surface 56 that rises from the annular portion 51 and faces radially inward is provided at the radially inner end of the foot receiving body portion 52. The rising surface 56 is located near the radially outer side of the lower end of the cover 60 and extends along the circumferential direction (see FIG. 4). The rising surface 56 restricts movement of the cover 60 toward the foot receiving body portion 52. It is not necessary to provide the rising surface 56 on the foot receiving body portion 52.

[0040] The foot support 50 can change the angle of the foot support main body 52 in the circumferential direction about the axis CL of the support 30 (hereinafter, sometimes simply referred to as the "angle of the foot support main body 52") by changing the combination of the engagement between the bolts 22 and the through holes 54. Specifically, the angle (direction) of the foot support main body 52 with respect to the base 20 can be changed by lifting the foot support 50 upward and rotating it in the circumferential direction (to the right in the figure), and then lowering the foot support 50 downward. In this embodiment, since eight bolts 22 are provided at equal intervals, the angle of the foot support main body 52 can be changed in 45 degree increments. For example, as shown in FIG. 9, the angle of the foot support main body 52 can be changed from a state in which the foot support main body 52 faces forward (a state shown by a solid line) to a state in which the foot support main body 52 faces 90 degrees to the right (a state shown by a two-dot chain line) by changing the combination of the engagement between the bolts 22 and the through holes 54. Of course, the foot support body 52 can also be oriented rearward or to the left.

[0041] As shown in Figs. 1 to 4, the cover 60 protects the support column 30 and covers the support column 30 from the outside in the radial direction. The cover 60 in this embodiment is formed in a cylindrical shape that expands in diameter downward. The lower end of the cover 60 in this embodiment is located near the outside in the radial direction of the cover stopper 55. The lower end of the cover 60 in this embodiment is located near the inside in the radial direction of the standing surface 56 of the foot support main body 52. ​​The cover 60 is installed in a state in which it is placed on the annular portion 51 of the foot support 50 without being fixed to other members. The cover 60 may be composed of multiple members or may be composed of one member.

[0042] The cover 60 can be lifted by hand from the annular portion 51 of the foot rest 50. The distance by which the cover 60 can be lifted is set to at least a distance by which the head portion 22a of the bolt 22 can be released from the through hole 54 of the foot rest 50. For example, the vertical length of the cover 60 is set so that a sufficient space can be secured above the cover 60 when the cover 60 is placed on the annular portion 51 of the foot rest 50. This makes it possible to lift the cover 60 by hand from the annular portion 51 of the foot rest 50. In this embodiment, the cover 60 is provided on the chair 10 with foot rests, but the present invention is not limited to this and the cover 60 may not be provided.

[0043] The chair with foot rest 10 configured as described above has a foot rest main body 52 extending from the support 30 in a direction intersecting the up-down direction, and is provided with a foot rest 50 disposed between the base 20 and the seat body 40. As such, the chair with foot rest 10 is provided with the foot rest 50 above the floor F, so that even a player whose feet do not reach the floor F when seated on the seating portion 41 of the seat body 40 can restrain pain in the back of the thighs by placing his / her feet on the foot rest 50.

[0044] The seat also includes a foot rest 50 that is rotatable in the circumferential direction around the axis CL of the support 30, and a restricting means (in this embodiment, a bolt (locking protrusion) 22 and a through hole (locking recess) 54 of the foot rest 50) that restricts the rotation of the foot rest 50 in the circumferential direction so that it can be released. Therefore, in the case of a player whose feet reach the floor F when seated on the seating portion 41 of the seat body 40, the angle (direction) of the foot rest main body 52 can be changed so that the foot rest is in a position that does not interfere with the player's legs. For example, the angle of the foot rest 50 can be changed so that the foot rest main body 52 faces backward.

[0045] Thus, according to this embodiment, it is possible to provide a chair 10 with foot rests that can prevent pain in the legs of people whose feet cannot reach the floor F, and that does not get in the way of people whose feet can reach the floor F.

[0046] In addition, the head portion 22a of the bolt 22 of the base portion 20 and the through hole 54 of the annular portion 51 of the foot rest 50, when engaged with each other, restrict the rotation of the foot rest 50 in the circumferential direction relative to the base portion 20. Therefore, a player using the foot rest 50 can use the foot rest main body portion 52 in a stable state in which the rotation of the foot rest 50 is restricted. In addition, a player not using the foot rest 50 can use the chair with foot rest 10 in a state in which the movement of the foot rest main body portion 52 to a position where it does not get in the way (for example, rearward) is restricted after moving the foot rest main body portion 52 to a position where it does get in the way (for example, forward).

[0047] In addition, the angle of the foot support 50 can be changed by changing the locking combination between the head portion 22a of the bolt 22 of the base portion 20 and the through hole 54 of the annular portion 51 of the foot support 50. Therefore, with a simple structure, the angle of the foot support 50 can be changed and circumferential movement of the foot support 50 relative to the base portion 20 can be restricted.

[0048] Furthermore, since the foot rest 50 is supported by the base portion 20, which is used to fix the support portion 30 to the floor F, the number of parts can be reduced, unlike when a member for supporting the foot rest 50 is provided separately from the base portion 20.

[0049] In addition, since the foot rest 50 is supported by the base portion 20 fixed to the floor F, the foot rest 50 can be directly supported from below the floor F. Therefore, when a foot is placed on the foot rest 50 and a load is applied to the foot rest 50 from above, the stability of the foot rest 50 can be sufficiently ensured.

[0050] Furthermore, the bolts (fixing members) 22 for fixing the base body 21 to the floor F function as locking protrusions, and therefore the number of parts can be reduced, unlike the case where the locking protrusions are provided separately from the fixing members.

[0051] In addition, since a cover stopper 55 is provided on the annular portion 51 of the foot support 50, when a cover 60 is provided to protect the support portion 30, radial movement of the cover 60 can be prevented, and the stability of the cover 60 can be ensured.

[0052] In addition, the radially outer tip side of the foot receiving body 52 is formed in an arc shape centered on the support column 30, and the foot receiving body 52 has a foot receiving protrusion 52a that is disposed at the radially outer tip side of the foot receiving body 52 and extends in the circumferential direction while protruding upward. In this way, the foot receiving protrusion 52a that extends in the circumferential direction and stands up is provided at the tip side of the foot receiving body 52 formed in an arc shape, so that the strength of the foot receiving body 52 against loads from above can be improved.

[0053] In this embodiment, multiple locking protrusions (bolts 22 in this embodiment) and multiple locking recesses (through holes 54 in this embodiment) are provided, but it is sufficient to provide multiple locking protrusions and / or multiple locking recesses.

[0054] In addition, in this embodiment, a locking protrusion is provided on the base portion 20 and a locking recess is provided on the annular portion 51 of the foot support 50, but this is not limited to this, and a locking recess may be provided on the base portion 20 and a locking protrusion may be provided on the annular portion 51 of the foot support 50.

[0055] In addition, in this embodiment, the foot rest 50 is supported by the base portion 20, but this is not limited to this, and as shown in FIG. 10, a foot rest support member 70 for supporting the foot rest 50 may be provided on the support portion 30.

[0056] 10 is a side view showing a modified example of the chair with leg rest. Note that the same components as those in the above embodiment are given the same reference numerals and the description thereof will be omitted.

[0057] As shown in FIG. 10, a chair 10A with a foot rest according to a modified example includes a base portion 20, a pillar portion 30, a seat body 40, a foot rest support member 70 provided on the pillar portion 30, and a foot rest 50. The foot rest support member 70 is disposed at a position of the pillar portion 30 spaced upward from the base portion 20 and downward from the seat body 40, and is supported (e.g., fixed) on the pillar portion 30 so as not to rotate. The foot rest support member 70 includes a support body portion 71 that supports the annular portion 51 of the foot rest 50 from below, and a locking protrusion portion (regulating means) 72 that protrudes upward from the upper surface of the support body portion 71. The locking protrusion portion 72 is formed so as to be insertable from below into a through hole (locking recess portion, restricting means) 54 of the annular portion 51 of the foot rest 50, and is locked to the through hole 54 of the foot rest 50. The foot support member 70 may be provided so as to be movable up and down relative to the support column 30 .

[0058] In addition, in this embodiment, the locking protrusions and the locking recesses are provided and function as restricting means for releasably restricting the rotation of the foot support 50 in the circumferential direction, but the present invention is not limited to this. For example, the foot support 50 may be provided rotatably relative to the support 30, and an electrical or physical stopper or the like may be provided for releasably restricting the rotation, and the stopper may function as the restricting means.

[0059] Next, a second embodiment of the present invention will be described with reference to the drawings. A chair with leg rest 110 of this embodiment differs from the first embodiment in that it includes an intermediate member 180. Note that the same components as those of the first embodiment are given the same reference numerals and their description will be omitted.

[0060] Fig. 11 is an exploded perspective view of a base part, an intermediate member, and a foot rest of a chair with a leg rest according to a second embodiment of the present invention. Fig. 12 is a plan view of a part of the chair with a leg rest according to the second embodiment. Fig. 13 is a cross-sectional view taken along the line XII-XII in Fig. 12.

[0061] 11 to 13, a chair with foot rest 110 according to the second embodiment of the present invention includes a base portion 120, a support portion 30, a seat body 40, a foot rest 150, a cover 60, and an intermediate member 180. Note that the support portion 30, the seat body 40, and the cover 60 of the chair with foot rest 110 are similar to those of the first embodiment, and therefore are not shown in FIGS.

[0062] 11 and 13, the base part 120 is a member fixed to the floor F to support the support part 30, and has a base main body 121 and a bolt (fixing member, locking protrusion, restricting means) 122. The bolt 122 has a configuration substantially similar to that of the bolt 22 in the first embodiment, and therefore a description thereof will be omitted.

[0063] The base body 121 has a column support part 121a that supports the column part 30, a flange part 121b that spreads out from the column support part 121a in a direction intersecting with the up-down direction, and a bolt insertion hole (insertion hole) 121c formed in the flange part 121b. Note that the column support part 121a and the flange part 121b have substantially the same configuration as the column support part 21a and the flange part 21b of the first embodiment, and therefore a description thereof will be omitted.

[0064] The bolt insertion holes 121c are insertion holes that allow the insertion of the bolts 122, and are formed in plurality in the flange portion 121b. The plurality of bolt insertion holes 121c are formed spaced apart from one another in the circumferential direction around the column support portion 121a. In this embodiment, the plurality of bolt insertion holes 121c are spaced apart from one another in the circumferential direction, and the central angle between the plurality of bolt insertion holes 121c about the axis CL of the column portion 30 is a multiple of 45 degrees.

[0065] When the base portion 120 is fixed to the floor F, a female screw (for example, a female screw anchor) is installed (embedded) in advance at a predetermined position on the floor F so as to correspond to the multiple bolt insertion holes 121c of the flange portion 121b. The position at which the female screw anchor is embedded may be set to any position in accordance with the structure of the floor F in this embodiment as long as it corresponds to the multiple bolt insertion holes 121c of the base portion 120. For example, if there is another buried object at the position where the female screw anchor is to be embedded, the female screw anchor may be embedded by shifting it in the circumferential direction. Then, the base main body 121 is placed at the above-mentioned predetermined position on the floor F, and the multiple bolts 122 are inserted into the multiple bolt insertion holes 121c of the flange portion 121b of the base main body 121, and fastened to the female screw anchor of the floor F.

[0066] 11 to 13, the foot support 150 has an annular portion 151 located around the support column 30, and a foot support main body 152 extending radially outward (in a direction intersecting the up-down direction) from the annular portion 151. The foot support main body 152 has a configuration substantially similar to that of the foot support main body 52 of the first embodiment, and therefore a description thereof will be omitted.

[0067] A support insertion hole 153 that allows the support part 30 to be inserted is formed in the center of the annular part 151. The inner peripheral surface of the support insertion hole 153 is formed in a tapered shape that reduces in diameter from the bottom to the top. A lower space 157 that is recessed upward is formed around the support insertion hole 153 on the lower surface side of the annular part 151. The lower space 157 of the annular part 151 is set to a height (length in the vertical direction) that allows the flange part 121b of the base part 120 and a part of the intermediate member 180 described later to be arranged. A slide groove (rotation restriction means) 158 that extends along the circumferential direction in a recessed upward state is formed on the top surface of the annular part 151 that defines the upper part of the lower space 157. In this embodiment, two slide grooves 158 are provided.

[0068] As shown in Figs. 11 to 13, the intermediate member 180 is disposed between the base portion 120 and the foot support 150 and is rotatable in the circumferential direction with respect to the foot support 150. For example, the intermediate member 180 is formed in a plate-like annular shape intersecting the vertical direction. In this embodiment, the intermediate member 180 is placed above the flange portion 121b of the base portion 120 in the lower space 157 of the foot support 150. As a result, the downward movement of the intermediate member 180 is restricted by the base portion 120. In addition, the upper surface of the intermediate member 180 is close to or in contact with the top surface of the lower space 157 of the foot support 150. As a result, the upward movement of the intermediate member 180 is restricted by the top surface of the lower space 157 of the foot support 150. The outer diameter of the intermediate member 180 is slightly smaller than the diameter of the lower space 157 of the foot support 150.

[0069] The intermediate member 180 has a pillar insertion hole 181 in the center that allows the pillar portion 30 to be inserted therethrough, an annular lip portion 182 that stands upward from the edge of the pillar insertion hole 181, a slide protrusion portion (rotation control means) 183 that protrudes upward, and a plurality of cutout portions (locking recesses, control means) 184 that are arranged circumferentially and spaced apart from each other.

[0070] The column insertion hole 181 is a circular opening centered on the axis CL of the column part 30, and allows the column part 30 to be inserted therethrough. The column insertion hole 181 of this embodiment is formed to have a larger diameter than the outer diameter of the column support part 121a of the base part 120, and allows the column support part 121a to be inserted therethrough. The column support part 121a of the base part 120 protrudes upward from the column insertion hole 181 of the intermediate member 180, and also protrudes upward from the column insertion hole 153 of the foot receiver 150.

[0071] The lip portion 182 is inserted from below into the support insertion hole 153 of the foot support 150. The outer peripheral surface of the lip portion 182 is formed in a tapered shape that decreases in diameter from the bottom to the top, and fits along the inner peripheral surface of the support insertion hole 153 of the foot support 150. As a result, radial movement of the intermediate member 180 relative to the foot support 150 is restricted by the inner peripheral surface of the support insertion hole 153 of the foot support 150.

[0072] The slide protrusion 183 is disposed at a position corresponding to the slide groove 158 of the foot support 150, and protrudes upward from the upper surface of the intermediate member 180. The slide protrusion 183 is inserted into the slide groove 158 of the foot support 150 from below, and is supported by the slide groove 158 so as to be slidable in the circumferential direction. This restricts the rotatable angle of the intermediate member 180 in the circumferential direction relative to the foot support 150 (hereinafter, sometimes simply referred to as the "rotatable angle of the intermediate member 180") within a predetermined range. That is, the slide groove 158 and the slide protrusion 183 function as a rotation restricting means for restricting the rotatable angle of the intermediate member 180 within the above-mentioned predetermined range. The rotatable angle of the intermediate member 180 means a central angle (hereinafter, sometimes simply referred to as the "central angle") centered on the axis CL of the support part 30.

[0073] In this embodiment, the rotatable angle of the intermediate member 180 is the angle between the position where the slide protrusion 183 abuts against one circumferential end of the slide groove 158 of the foot support 150 and the position where the slide protrusion 183 abuts against the other circumferential end of the slide groove 158. The above-mentioned predetermined range of the rotatable angle of the intermediate member 180 is a range of at least 50% or more when the central angle of adjacent notches 184 (hereinafter simply referred to as "adjacent notches 184") among the multiple notches 184 described later is 100%. In this embodiment, the above-mentioned predetermined range of the rotatable angle of the intermediate member 180 is set to 22.5 degrees or more, which is 50% of the central angle (45 degrees) of the adjacent notches 184. That is, the intermediate member 180 of this embodiment is rotatable at least 22.5 degrees or more in the circumferential direction relative to the foot support 150. Note that the upper limit value of the above-mentioned predetermined range of the rotatable angle of the intermediate member 180 is preferably smaller than the central angle of the adjacent notches 184.

[0074] The plurality of notches 184 have a shape cut out from the outer circumferential edge of the intermediate member 180 toward the inside in the radial direction. The plurality of notches 184 are disposed at positions corresponding to the bolts 122 of the base portion 120. In this embodiment, eight of the plurality of notches 184 are provided at equal intervals in the circumferential direction. That is, the central angle between adjacent notches 184 is 45 degrees. The plurality of notches 184 are formed to a size that allows the head portion 122a of the bolt 122 of the base portion 120 to be inserted from below, and can lock the head portion 122a of the bolt 122. The circumferential width of the plurality of notches 184 in this embodiment is slightly larger than the head portion 122a so that slight play occurs on both sides of the head portion 122a in the circumferential direction when the head portion 122a of the bolt 122 is inserted. In this embodiment, the intermediate member 180 is provided with the notch 184 as the locking recess, but it does not have to be formed in a notch shape, and may have any shape that can lock the locking protrusion (bolt 122 in this embodiment).

[0075] As shown in FIG. 13, in a state where the foot support 150 is supported by the base portion 120, the head portions 122a of the bolts 122 of the base portion 120 are inserted into the notches 184 of the intermediate member 180 from below. The head portions 122a of the bolts 122 and the notches 184 of the intermediate member 180 are engaged with each other. In a state where the head portions 122a of the bolts 122 of the base portion 120 and the notches 184 of the intermediate member 180 are engaged with each other, the rotation of the intermediate member 180 in the circumferential direction relative to the base portion 20 is restricted. Here, the rotation of the foot support 150 in the circumferential direction relative to the intermediate member 180 is restricted within the above-mentioned predetermined range. In other words, in a state where the head portions 122a of the bolts 122 of the base portion 120 and the notches 184 of the intermediate member 180 are engaged with each other, the rotation of the foot support 150 in the circumferential direction relative to the base portion 20 is restricted within the above-mentioned predetermined range.

[0076] By lifting the foot receiver 150 and the intermediate member 180 upward from the base portion 120, it is possible to release the engagement between the bolt 122 and the notch 184 of the intermediate member 180. When the engagement between the bolt 122 and the notch 184 of the intermediate member 180 is released, the foot receiver 150 is permitted to rotate in the circumferential direction relative to the base portion 120. Then, after the foot receiver 150 has been rotated in the circumferential direction, the foot receiver 150 and the intermediate member 180 can be lowered downward, thereby changing the combination of the bolt 122 and the notch 184 of the intermediate member 180 that are engaged with each other from the state before the rotation.

[0077] The chair with foot rest 110 configured as described above has a foot rest main body 152 extending from the support column 30 in a direction intersecting the up-down direction, and is provided with a foot rest 150 disposed between the base 120 and the seat body 40. As such, the chair with foot rest 110 is provided with the foot rest 150 above the floor F, so that even a player whose feet do not reach the floor F when seated on the seating portion 41 of the seat body 40 can place his / her feet on the foot rest 150 to prevent pain in the back of the thighs.

[0078] Also, the seat is provided with a foot rest 150 that is rotatable in the circumferential direction around the axis CL of the support portion 30, and a restricting means (in this embodiment, a bolt (locking protrusion) 122 and a notch (locking recess) 184 of the intermediate member 180) that releasably restricts the rotation of the foot rest 150 in the circumferential direction. Therefore, in the case of a player whose feet reach the floor F when seated on the seating portion 41 of the seat body 40, the angle (direction) of the foot rest main body 152 can be changed so that the foot rest main body 152 is positioned so as not to interfere with the player's legs.

[0079] Thus, according to this embodiment, as in the first embodiment described above, it is possible to provide a chair 110 with foot rest that can prevent pain in the legs of people whose feet cannot reach the floor F, and that does not get in the way of people whose feet can reach the floor F.

[0080] The intermediate member 180 is disposed between the base portion 120 and the foot support 150 and is rotatable in the circumferential direction with respect to the foot support 150. The intermediate member 180 is disposed with a rotation restriction means (the slide groove 158 and the slide protrusion 183 in this embodiment) for restricting the rotatable angle of the intermediate member 180 with respect to the foot support 150 within the above-mentioned predetermined range. That is, the intermediate member 180 is rotatable in the circumferential direction with respect to the foot support 150 within the above-mentioned predetermined range, so that the degree of freedom of the position of the bolt 122 can be increased. For example, the female thread anchor to which the bolt 122 is fastened may be buried in a position shifted from the originally planned position for the reason of avoiding piping or the like already buried in the floor F. In such a case, if an engagement recess is provided directly on the foot support, the orientation of the foot support main body may be shifted by the amount of the shifted position of the female thread anchor, and the foot support main body may not be able to face directly forward. In this embodiment, since intermediate member 180 is rotatable circumferentially relative to foot support 150 within the above-mentioned specified range, even if bolt 122 is positioned circumferentially shifted from its original intended position, notch 184 of intermediate member 180 can be engaged with bolt 122 and foot support main body 152 can be reliably directed directly forward.

[0081] Moreover, the above-mentioned predetermined range of the rotatable angle of the intermediate member 180 is a range of at least 50% or more when the central angle of the adjacent notches 184 is 100%. Here, when the central angle between the initial planned position of the bolt 122 and the shifted position (hereinafter referred to as the "displacement central angle of the bolt 122") is a multiple of the central angle of the adjacent notches 184 (hereinafter referred to as the "adjacent central angle of the notches 184"), the foot support main body 152 can be directed straight ahead by simply changing the locking combination of the bolt 122 and the notches 184. On the other hand, when the displacement central angle of the bolt 122 is not a multiple of the adjacent central angle of the notches 184, the bolt 122 is positioned between any of the adjacent notches 184 with respect to the intermediate member 180 arranged to correspond to the above-mentioned initial planned position. For this reason, if the intermediate member 180 is rotatable in either circumferential direction by at least half the angle of the adjacent central angle of the notch 184, the notch 184 of the intermediate member 180 can be engaged with the bolt 122 and the foot support main body 152 can be reliably oriented directly forward. In this manner, by setting the above-mentioned predetermined range of the rotatable angle of the intermediate member 180 to a range of at least 50% or more of the adjacent central angle of the notch 184, the foot support main body 152 can be reliably oriented directly forward while minimizing the rotation of the intermediate member 180 in the circumferential direction relative to the foot support 150.

[0082] In this embodiment, the slide groove 158 is provided in the foot support 150, and the slide protrusion 183 is provided in the intermediate member 180, but this is not limited to this, and the slide groove may be provided in the intermediate member 180, and the slide protrusion may be provided in the foot support 150.

[0083] In addition, in this embodiment, the slide groove 158 and the slide protrusion 183 function as a rotation restriction means for restricting the rotatable angle of the intermediate member 180 within the above-mentioned specified range, but the rotation restriction means is not limited to this.

[0084] Although the present invention has been described based on the above embodiment, the present invention is not limited to the contents of the above embodiment, and can be modified as appropriate without departing from the scope of the present invention. In other words, all other embodiments, examples, and operational techniques made by those skilled in the art based on this embodiment are naturally included in the scope of the present invention. [Explanation of symbols]

[0085] 10, 10A, 110: Chair with foot rest 20,120: Base section 21,121: Base body 21a, 121a: Pillar support part 21b, 121b: Flange part 21c, 121c: Bolt insertion hole (insertion hole) 22, 122: Bolt (fixing member, locking protrusion, restricting means) 30: Strut part 40: Sheet body 41: Seating area 50,150: Footrest 52,152: Foot support body 52a: Foot support protrusion 54: Through hole (locking recess) 55: Cover stopper 60: Cover 70: Foot support member 72: Locking protrusion 158: Slide groove (rotation restriction means) 180: Intermediate part 183: Slide protrusion (rotation restriction means) 184: Notch (retaining recess, restricting means)

Claims

1. A base portion that is fixed to a floor; A support portion supported by the base portion and extending upward; A seat body having a seat portion and supported on an upper end portion of the support column; A foot rest having a foot rest body extending from the support column in a direction intersecting the vertical direction and rotatable in a circumferential direction around an axis of the support column; and a restricting means for releasably restricting the rotation of the foot support in the circumferential direction. A chair with a foot rest.

2. the restricting means includes a locking protrusion provided on one of the base portion and the foot support and protruding toward the other, and a locking recess provided on the other and capable of being locked with the locking protrusion, At least one of the locking protrusion and the locking recess is provided in plurality, The locking protrusion and the locking recess restrict rotation of the foot support relative to the base in the circumferential direction when they are locked to each other, and allow the rotation when they are released from each other, The foot support is capable of changing the circumferential angle by changing the combination of the locking protrusions and the locking recesses that are locked to each other.

2. The chair with leg rest according to claim 1.

3. The base portion includes a base body and a fixing member that fixes the base body to a floor, the base body has a column support portion that supports the column portion, a flange portion that extends from the column support portion in a direction intersecting with the up-down direction, and an insertion hole that is formed in the flange portion and allows the fixing member to be inserted therethrough, The fixing member of the base portion protrudes upward from the flange portion and functions as the locking protrusion, The locking recess is provided in the foot rest.

3. The chair with leg rest according to claim 2.

4. A cover is provided to cover the support portion from the outside in the radial direction, The foot rest has a cover stopper that protrudes upward and restricts radial movement of the cover relative to the foot rest.

3. A chair with a leg rest according to claim 1 or 2.

5. The radially outer tip side of the foot support body is formed in an arc shape centered on the support column side, The foot receiving body has a foot receiving protrusion that is disposed at a tip end of the foot receiving body and extends in the circumferential direction while protruding upward.

3. A chair with a leg rest according to claim 1 or 2.

6. an intermediate member having a plurality of locking recesses spaced apart from one another in the circumferential direction, the intermediate member being disposed between the base portion and the foot rest and rotatable in the circumferential direction relative to the foot rest; a rotation restricting means for restricting a rotatable angle of the intermediate member relative to the foot support within a predetermined range, the base portion has at least one locking protrusion that protrudes toward the intermediate member and is locked in the locking recess, The locking protrusion and the locking recess function as the restricting means, restricting rotation of the foot support relative to the base in the circumferential direction when they are locked to each other, and allowing the rotation when they are released from each other. The foot support is capable of changing the circumferential angle by changing the combination of the locking protrusions and the locking recesses that are locked to each other.

2. The chair with leg rest according to claim 1.

7. The predetermined range is a range of at least 50% or more when the central angle of the adjacent locking recesses centered on the axis of the support portion is set to 100%.

7. A chair with a leg rest according to claim 6.

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