JP2018015418A - Chair for bathroom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair for bathroom capable of attaching a cushion to a seat body easily even when the cushion shrinks due to long-term deterioration.SOLUTION: A chair for bathroom comprises a seat 2. The seat 2 includes a seat body 3 and a cushion 6 arranged along an upper face of the seat body 3. The seat body 3 includes a fitting hole 37 opening upward. The cushion 6 includes a protrusion 60 protruding downward. The protrusion 60 includes a fitting part 64 fitted in the fitting hole 37. The fitting hole 37 includes an area 373 which the fitting part 64 can be fitted in when the fitting part 64 deviates with respect to the fitting hole 37 due to shrinkage of the cushion 6 along with long-term deterioration.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a bathroom chair.

  Patent Document 1 discloses a bathtub base used as a chair in a bathtub. This bathtub base is provided with a base and a support leg that supports the base. This bathtub stand is submerged in the hot water in the bathtub and placed on the bottom of the bathtub for use.

JP 2007-267823 A

  Patent Document 1 does not disclose that a cushion is attached to the upper surface of the base. In addition, Patent Document 1 does not disclose a technique that allows the cushion to be easily attached to the base when the cushion contracts due to aging.

  This invention is made | formed in view of the said situation, Comprising: Even when a cushion shrink | contracts by aged deterioration, it aims at providing the bathroom chair which can attach this cushion to a seat part main body easily. .

  In order to achieve the above object, a bathroom chair according to one aspect of the present invention has the following characteristics. The bathroom chair includes a seat. The seat includes a seat body and a cushion disposed along the upper surface of the seat body. A fitting hole opened upward is formed in the seat body. A protrusion protruding downward is formed on the cushion. The protrusion has a fitting portion that is fitted into the fitting hole. The fitting hole has a region in which the fitting portion can be fitted when the fitting portion is displaced with respect to the fitting hole due to shrinkage due to aging of the cushion.

  The bathroom chair according to one aspect of the present invention can be easily attached to the seat body even when the cushion contracts due to deterioration over time.

FIG. 1 is a perspective view of a bathroom chair according to a first embodiment of the present invention. FIG. 2 is a perspective view of the above bathroom chair as viewed from below. 3 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a perspective view in which the cushion of the bathroom chair is omitted. FIG. 5A is a perspective view seen from the lower side of the seat body of the bathroom chair same as above, and FIG. 5B is an enlarged view of the main part of FIG. 5A. FIG. 6 is a perspective view of the same cushion as viewed from below. FIG. 7 is a perspective view of the above-described bathroom chair as viewed from below. FIG. 8 is a perspective view of a core portion of the above-described bathroom chair. 9 is a cross-sectional view taken along line BB in FIG. FIG. 10 is a perspective view showing the core part and the mold. FIG. 11 is a longitudinal sectional view of a main part showing a state where the core part is set in a mold and clamped. FIG. 12 is a perspective view of a bathroom chair according to the second embodiment of the present invention. FIG. 13 is an exploded perspective view showing the seat body and cushion of the bathroom chair.

  Each embodiment shown below is related with the chair for bathrooms. Specifically, It is related with the chair for bathrooms used in a bathroom.

  The bathroom chair of each embodiment shown below is a bathroom chair that can easily attach the cushion to the seat body even when the cushion attached to the seat body contracts due to deterioration over time. Hereinafter, each embodiment will be described in detail.

(First embodiment)
The bathroom chair (hereinafter referred to as a chair) according to the first embodiment shown in FIG. 1 is a bathtub base that is installed in a bathtub and used as a stool.

  The chair includes a leg 1 and a seat (base member) 2 supported by the leg 1. The leg portion 1 includes a plurality of legs 10. The leg part 1 of this embodiment is comprised by the four legs 10 as shown in FIG.

  Each of the plurality of legs 10 includes a column portion 11 that is long in the vertical direction and an installation portion 12 that is provided at the lower end portion of the column portion 11. The column portion 11 is made of metal (specifically, stainless steel), and the installation portion 12 is made of synthetic rubber. A plurality of suction cups 13 that can be adsorbed to the bottom surface (bottom surface of the bottom portion) of the bathtub are formed on the lower surface of the installation portion 12.

  As shown in FIGS. 2 and 3, the seat 2 includes a seat body (base) 3 that is supported by a plurality of legs 10 and a cushion 6 that is detachably attached to the seat body 3. .

  FIG. 4 shows a chair in which the cushion 6 is not shown. The seat body 3 is formed in a point-symmetrical shape when viewed from the vertical direction. The seat body 3 includes a plate portion 30 and a peripheral portion 32 that protrudes downward from the peripheral portion of the plate portion 30. The plate portion 30 is formed in a rectangular plate shape that is long in one direction when viewed from the vertical direction. The center of the seat body 3 coincides with the center of the plate portion 30 when viewed from the vertical direction. The upper surface of the plate part 30 is smooth.

  The peripheral edge portion 32 is formed in a rectangular frame shape that is long in the longitudinal direction of the plate portion 30 when viewed in the vertical direction. The outer peripheral surface of the peripheral edge portion 32 is a surface continuous with the upper surface of the plate portion 30.

  As shown in FIG. 5A, cylindrical portions 33 projecting downward are formed at each of the four corners of the rectangular plate portion 30. A hole 34 opened downward is formed inside each cylindrical portion 33. As shown in FIG. 2, the upper end portion of the column portion 11 of the leg 10 is fitted into the hole 34 of each cylindrical portion 33.

  As shown in FIG. 5A, a plurality of through holes 35 are formed in the plate portion 30. Each through-hole 35 penetrates the plate part 30 in the up-down direction. The plurality of through holes 35 of the present embodiment include a plurality of screw holes 36 and a plurality of drain holes 31.

  The screw hole 36 is formed in a portion of the plate portion 30 corresponding to the hole 34 of each cylindrical portion 33. A screw 38 shown in FIG. 4 is inserted into each screw hole 36 from above. Each screw 38 is screwed into a female screw (not shown) provided at the upper end portion of the corresponding column portion 11. Thereby, each leg 10 is attached to the seat body 3.

  As shown in FIG. 5A, a large number of drain holes 31 are formed in the plate portion 30 of the present embodiment, and the large number of drain holes 31 are distributed substantially uniformly in the plate portion 30. The shape seen from the up-down direction of each drain hole 31 is circular.

  The plurality of through holes 35 further include a plurality of fitting holes 37. Each of the plurality of insertion holes 37 constitutes an insertion hole opened upward. A large number of fitting holes 37 are formed in the plate portion 30 of the present embodiment, and the large number of fitting holes 37 are distributed substantially uniformly in the plate portion 30.

  A plurality of protrusions 60 formed on the lower surface of the cushion 6 shown in FIG. 6 are detachably fitted in the plurality of fitting holes 37, respectively. Thereby, the cushion 6 is attached to the seat part main body 3 as shown in FIG. The cushion 6 can be detached from the seat body 3. Further, when the cushion 6 is attached to the seat body 3, the center of the plate portion 30 coincides with the center of the cushion 6 when viewed from the vertical direction.

  As shown in FIG. 4, the plurality of insertion holes 37 include an insertion hole 371 positioned at the center of the plate portion 30 when viewed from the vertical direction and a plurality of positions positioned away from the center of the plate portion 30 when viewed from the vertical direction. The insertion hole 372 is included. Hereinafter, the fitting hole 371 is referred to as a first fitting hole 371, and the fitting hole 372 is referred to as a second fitting hole 372.

  The shape seen from the up-down direction of the 1st fitting hole 371 is circular. The plurality of second fitting holes 372 are arranged on a virtual ellipse centered on the center of the plate part 30 when viewed from the vertical direction. Each of the plurality of second insertion holes 372 is parallel to an imaginary line L passing through the second insertion hole 372 and the center of the plate part 30 (the center of the seat body 3) when viewed from the vertical direction. It is a long slot.

  As shown in FIG. 5A, reinforcing ribs 39 are formed on the lower surface of the plate portion 30. The reinforcing rib 39 has a first rib 391, a plurality of second ribs 392, and a plurality of third ribs 393.

  The first rib 391 is formed at the peripheral edge of the first insertion hole 371 and is formed in a cylindrical shape surrounding the first insertion hole 371.

  The plurality of second fitting holes 372 formed in the plate part 30 include a plurality of second fitting holes 372 a located on a pair of diagonal lines of the rectangular plate part 30. A second rib 392 is formed at the peripheral edge of each second fitting hole 372a. Each second rib 392 is formed in an elliptic cylinder shape surrounding the corresponding second fitting hole 372a.

  The plurality of third ribs 393 are located on a pair of diagonal lines of the rectangular plate portion 30. Each of the plurality of third ribs 393 extends in a direction parallel to the diagonal line of the rectangular plate portion 30.

  The first rib 391 and each second rib 392 are continuous via a plurality of third ribs 393. Each second rib 392 and the corresponding cylindrical portion 33 are continuous via a plurality of third ribs 393.

  The seat body 3 of the present embodiment is an insert-molded product. As shown in FIG. 3, the seat body 3 includes a core portion 4 and a molding portion (resin molding portion) 5 that is molded so as to cover the entire core portion 4. Have. The molding part 5 constitutes the entire outer surface of the seat body 3. That is, the molding part 5 constitutes the upper surface and lower surface of the plate part 30, the outer peripheral surface and inner peripheral surface of the peripheral edge part 32, and the inner peripheral surface of each through hole 35. Further, the above-described cylindrical portion 33 and the reinforcing rib 39 are a part of the molded portion 5.

  The density of the core part 4 is greater than the density of the molding part 5 and greater than the density of water. The core part 4 of the present embodiment is made of metal, and specifically, the core part 4 is SPCC (cold rolled steel sheet) that has been galvanized.

  As shown in FIG. 8, the core portion 4 includes a plate-like portion 40 and a peripheral piece portion 41 that protrudes downward from the peripheral edge portion of the plate-like portion 40.

  The plate-like portion 40 is formed in a rectangular plate shape that is long in the longitudinal direction of the plate portion 30 (see FIG. 4) when viewed from the vertical direction. In the plate-like portion 40, holes 42 penetrating in the vertical direction are formed in portions corresponding to the through holes 35 (each screw hole 36, each drain hole 31, and each fitting hole 37 (see FIG. 5A)). ing.

  The molding part 5 shown in FIG. 3 is made of a synthetic resin, and is specifically formed from polypropylene to which glass fibers are added. Since polypropylene is excellent in chemical resistance, even if a detergent or the like is applied to the molded part 5, the physical properties and appearance of the molded part 5 are hardly affected.

  The molding unit 5 includes an upper cover part 50, a lower cover part 51, an outer peripheral cover part 52, and a plurality of hole cover parts 53.

  The upper cover portion 50 covers the entire upper surface of the plate-like portion 40. The lower cover portion 51 covers the entire lower surface of the plate-like portion 40. The outer peripheral cover portion 52 covers the entire peripheral piece portion 41. The plurality of hole covering portions 53 respectively cover the entire inner peripheral surfaces of the plurality of holes 42.

  The peripheral edge portion of the upper cover portion 50 and the peripheral edge portion of the lower cover portion 51 are continuous via the outer peripheral cover portion 52.

  The plate portion 30 of the seat body 3 is composed of a plate-like portion 40 of the core portion 4, an upper cover portion 50, a lower cover portion 51, and a plurality of hole cover portions 53 of the molding portion 5. The peripheral edge portion 32 of the seat body 3 is composed of a peripheral piece portion 41 of the core portion 4 and an outer peripheral cover portion 52 of the molding portion 5.

  Each of the plurality of hole covering portions 53 is formed in a cylindrical shape. The above-described through hole 35 is formed inside each hole covering portion 53.

  The plurality of hole covering portions 53 according to the present embodiment includes a plurality of first hole covering portions 531 and a plurality of second hole covering portions 532 (see FIG. 5A).

Each of the plurality of first hole cover portions 531 is continuous with the upper cover portion 50 and the lower cover portion 51.
Each of the plurality of second hole cover portions 532 is configured by a cylinder 54 (see FIG. 5A) described later, and is a separate member (separate member) from the upper cover portion 50 and the lower cover portion 51. The molding part 5 of this embodiment has two second hole covering parts 532.

  As shown in FIG. 3, the upper cover part 50, the lower cover part 51, the outer peripheral cover part 52, and the plurality of first hole cover parts 531 in the molding part 5 are integrally formed and are continuous. . The holes formed inside each first hole covering portion 531 constitute the above-described screw hole 36 (see FIG. 5A), the drain hole 31, or the fitting hole 37.

  As shown in FIG. 9, each second hole covering portion 532 includes a cylindrical body 54 that is a separate member from the upper covering portion 50 and the lower covering portion 51. The holes formed inside each cylinder 54 constitute a drain hole 31. In addition, the cylindrical body 54 and the part other than the cylindrical body 54 in the molding unit 5 may be formed of the same material or different materials.

  As shown in FIG. 8, among the plurality of holes 42 formed in the plate-like portion 40, the holes 42 corresponding to the respective cylinders 54 (see FIG. 5A) constitute support holes 421 that support the cylinders 54. ing. As shown in FIG. 9, each cylindrical body 54 is fitted into a corresponding support hole 421 and supported by the plate-like portion 40.

  The outer peripheral surface of the upper end portion of each cylindrical body 54 is joined (integrated) to the upper cover portion 50. The outer peripheral surface of the lower end portion of each cylindrical body 54 is joined (integrated) to the lower cover portion 51. Thereby, the upper cover part 50 and the lower cover part 51 are connected via the some 2nd hole cover part 532 (cylinder 54).

  The seat body 3 is insert-molded using a mold 8 shown in FIGS. 10 and 11, for example. The mold 8 includes a first mold 81 that molds the lower surface of the seat body 3 (see FIG. 5A) and a second mold 82 that molds the upper surface of the seat body 3.

  A molding surface 83 that molds the upper surface of the seat body 3 in the second mold 82 is provided with a plurality of pins 84 that protrude toward the first mold 81 and are respectively inserted into the plurality of holes 42 of the core section 4. ing. Each pin 84 is one size smaller than the corresponding hole 42.

  When insert-molding the seat body 3, the cylindrical body 54 is attached to the pins 84 corresponding to the support holes 421 among the plurality of pins 84 of the second mold 82, as shown in FIG. 10. The cylinders 54 are attached by inserting pins 84 into the holes (drain holes 31) inside the cylinder 54.

  Thereafter, as shown in FIG. 11, the corresponding cylinders 54 are fitted into the respective support holes 421 of the core part 4, whereby the core part 4 is supported by the plurality of pins 84 via the plurality of cylinders 54. The The step of inserting the plurality of pins 84 into the plurality of cylinders 54 may be performed after the plurality of cylinders 54 are fitted into the plurality of support holes 421, respectively.

  As described above, after the core portion 4 is supported by the plurality of pins 84 via the plurality of cylinders 54, the mold 8 is clamped. In this state, the mold 8 is filled with a resin material that is a portion excluding the cylindrical body 54 in the molded portion 5 (see FIG. 3). Thereby, the upper cover part 50, the lower cover part 51, the outer periphery cover part 52, and the some 1st hole cover part 531 shown in FIG. 3 are shape | molded. The seat body 3 molded in this way has an upper cover 50, a lower cover 51, an outer peripheral cover 52, and a plurality of first hole covers 531 integrated with the core 4, and the upper cover 50. And the seat part main body 3 which the lower cover part 51 integrated with the some cylinder 54 (refer FIG. 9) is shape | molded. In addition, each 1st hole cover part 531 is comprised by the synthetic resin with which the clearance gap between the corresponding pin 84 and the peripheral part of the corresponding hole 42 of the core part 4 was filled at the time of the said shaping | molding.

  As shown in FIG. 7, the cushion 6 attached to the seat body 3 is made of a material that has elasticity and is softer than the seat body 3. Specifically, the material of the cushion 6 is EVA (ethylene-vinyl acetate copolymer) resin to which an antifungal material is added.

  As shown in FIG. 6, the cushion 6 is formed in a point-symmetrical shape when viewed from the vertical direction. The cushion 6 has a top plate portion 61 and a peripheral wall portion 63 protruding downward from the peripheral edge portion of the top plate portion 61.

  The top plate portion 61 has a rectangular shape that is slightly larger than the plate portion 30 (see FIG. 7) of the seat body 3 when viewed from the vertical direction, and the peripheral wall portion 63 is the peripheral edge portion 32 of the seat body 3 as viewed from the vertical direction. It is a rectangular frame shape that is slightly larger than (see FIG. 7). When viewed in the vertical direction, the center of the cushion 6 coincides with the center of the top plate portion 61.

  As shown in FIG. 7, the seat body 3 is fitted inside the peripheral wall 63 of the cushion 6. The top plate portion 61 (see FIG. 6) in this fitted state is along the upper surface of the plate portion 30 of the seat body 3.

  As shown in FIG. 6, a drain hole 62 penetrating in the vertical direction is formed at a position corresponding to each drain hole 31 (see FIG. 4) of the seat body 3 in the top plate portion 61. Hereinafter, each drain hole 31 formed in the seat body 3 is referred to as a first drain hole 31, and each drain hole 62 formed in the cushion 6 is referred to as a second drain hole 62.

  The shape seen from the up-down direction of each second drain hole 62 is a circle. As shown in FIG. 7, in a state where the cushion 6 is attached to the seat body 3, each second drain hole 62 communicates with the corresponding first drain hole 31.

  As shown in FIG. 6, the protrusion 60 described above is formed at a position corresponding to each fitting hole 37 (see FIG. 7) of the seat body 3 on the lower surface of the top plate portion 61. The plurality of protrusions 60 formed on the top plate portion 61 include a first protrusion 601 and a plurality of second protrusions 602. The first protrusion 601 is formed at a location corresponding to the first insertion hole 371 (see FIG. 7) in the top plate portion 61. The plurality of second protrusions 602 are respectively formed at locations corresponding to the plurality of second insertion holes 372 (see FIG. 7) in the top plate portion 61.

  As shown in FIG. 7, the seat main body 3 is fitted inside the peripheral wall 63 of the cushion 6, whereby the first protrusion 601 is fitted into the first fitting hole 371, and the plurality of second protrusions 602. Are fitted into the plurality of second fitting holes 372, respectively. As a result, the cushion 6 is attached to the seat body 3.

  As shown in FIG. 6, the first protrusion 601 protrudes downward from the top plate part 61. The first protrusion 601 of the present embodiment is formed in a truncated cone shape having a smaller diameter as it goes downward.

  Each of the plurality of second protrusions 602 has a fitting portion 64. The fitting part 64 of each 2nd protrusion part 602 is formed in the column shape, and a horizontal cross-sectional shape is circular.

  Among the plurality of second protrusions 602, the second protrusions 602a corresponding to the second insertion holes 372 (see FIG. 5A) other than the second insertion holes 372a further have a retaining portion 65.

  The retaining portion 65 of each second protrusion 602a is positioned below the fitting portion 64 and constitutes the lower portion of the second protrusion 602a. The upper end of the retaining portion 65 of each second protrusion 602a is connected to the lower end of the fitting portion 64 of the second protrusion 602a. In addition, the 2nd protrusion part 602 except the 2nd protrusion part 602a comprises the insertion part 64 by the lower diameter larger than the upper part, and does not have the retaining part 65.

  The diameter of the fitting portion 64 of each second protrusion 602 (including the second protrusion 602a) is the width W of the corresponding second fitting hole 372 (see FIGS. 5A and 5B) (see from the vertical direction). This is substantially the same as the dimension of the second fitting hole 372 in the direction orthogonal to the length direction. The diameter of the fitting portion 64 of each second protrusion 602 (including the second protrusion 602a) is shorter than the length L1 of the corresponding second insertion hole 372 (see FIG. 5B). That is, the fitting portion 64 of each second protrusion 602 has a smaller dimension in the length direction of the second fitting hole 372 than the corresponding second fitting hole 372.

  The horizontal cross-sectional shape of the retaining portion 65 of each second protrusion 602a is a circle. The diameter of the retaining portion 65 of each second protrusion 602a is larger than the diameter of the fitting portion 64 of the second protrusion 602a. The outer peripheral portion of the retaining portion 65 of each second protrusion 602a protrudes outward from the outer peripheral surface of the fitting portion 64 of the second protrusion 602a. Further, the diameter of the retaining portion 65 of each second protrusion 602a is larger than the width W (see FIG. 5B) of the corresponding second fitting hole 372.

  As shown in FIG. 7, in the attachment state in which the cushion 6 is attached to the seat body 3, the fitting portions 64 of the second protrusions 602 are fitted into the corresponding second fitting holes 372. Thereby, the movement of the cushion 6 in the horizontal direction with respect to the seat body 3 is restricted. The outer peripheral portion of the retaining portion 65 of each second protrusion 602 a is located below the plate portion 30 of the seat body 3 and is disposed along the lower surface of the plate portion 30. Thereby, the upward movement with respect to the seat part main body 3 of the cushion 6 is controlled.

(Use)
The chair is used in a state where a cushion 6 is attached to the seat body 3 as shown in FIGS. The user places the chair in hot water in the bathtub and installs it in the bathtub. At this time, since the hot water of the chair passes through the hole constituted by the first water drain hole 31 and the second water drain hole 62, the seat portion 2 is not easily subjected to hot water resistance. For this reason, the user can easily sink the chair in the hot water in the bathtub. Moreover, the user can fix the chair to the bathtub by attaching the plurality of suction cups 13 shown in FIG. 2 of each leg 10 to the bottom surface of the bathtub.

  The user can sit on the chair cushion 6 installed in the bathtub and take a bath. The user can also use a chair installed in the washing area. The user can also remove the cushion 6 from the seat body 3 to clean and maintain the chair. The chair can also be used with the cushion 6 removed.

  By the way, since the chair is used in a bathroom, the cushion 6 may be heated and expanded by a bathroom dryer or the like installed in the bathroom, for example. The cushion 6 expanded in this way contracts when the temperature of the cushion 6 decreases. However, if such expansion and contraction due to temperature change is repeated, the cushion 6 may deteriorate and permanently contract. When the cushion 6 of this embodiment contracts due to such aging (deterioration over time), each part of the cushion 6 is viewed from the top and bottom in the center of the cushion 6 (top plate portion). It tends to contract toward the center 61). This is confirmed, for example, by conducting an experiment in which a cushion manufactured under the same manufacturing conditions as the cushion 6 is repeatedly heated.

  When the cushion 6 contracts due to aging as described above, each second protrusion 602 shown in FIG. 7 may be displaced in the horizontal direction with respect to the seat body 3. For this reason, when the cushion 6 is in the state of being removed from the seat body 3, it may be difficult to fit each second protrusion 602 of the cushion 6 into the corresponding second fitting hole 372.

  In order to improve this point, each second insertion hole 372 in the present embodiment is an area 373 in which the insertion part 64 that is displaced with respect to the insertion hole 37 due to contraction due to the aging of the cushion 6 can be inserted. have. In addition, the area | region 373 may not overlap with the area | region where the insertion part 64 before shrinkage | contraction is fitted, and only a part may overlap.

  Specifically, the length direction of each second fitting hole 372 is such that the fitting part 64 of the corresponding second protrusion 602 is in relation to the second fitting hole 372 as the cushion 6 contracts due to aged deterioration. Is parallel to the direction of displacement (hereinafter referred to as the displacement direction). And in the state where the cushion 6 was attached to the seat part main body 3, the fitting part 64 of each 2nd protrusion 602 is the seat part main body 3 seeing from an up-down direction in the corresponding 2nd fitting hole 372. It is located at the end opposite to the center. At this time, a gap that allows the displacement of the fitting portion 64 is formed between the edge portion on the center side of the seat body 3 of the second fitting hole 372 and the fitting portion 64. This gap is located in the displacement direction of the fitting portion 64 when viewed from the fitting portion 64. For this reason, even if the cushion 6 contracts due to the aged deterioration, the user can easily fit the fitting portions 64 of the second protrusions 602 into the corresponding second fitting holes 372.

  Further, as shown in FIG. 3, the cushion 6 according to the present embodiment is provided between the peripheral wall portion 63 and the peripheral edge portion 32 of the seat body 3 disposed inside the seat body 3 when attached to the seat body 3. In addition, a gap 66 is formed. For this reason, even if the cushion 6 contracts due to the aging deterioration, the user can easily fit the seat main body 3 inside the peripheral wall 63.

(Supplement)
In addition, although the leg part 1 of this embodiment is comprised with the four legs 10, if it can install in the state which supported the seat part 2, the number of the legs 10 may be 1-3, or 5 or more Good.

  Moreover, the 1st drain hole 31 and the 2nd drain hole 62 are omissible.

  Further, the cylindrical body 54 of the present embodiment constitutes the peripheral edge of the first drain hole 31, but may constitute the peripheral edge of the screw hole 36 or the peripheral edge of the fitting hole 37. Moreover, in the some hole cover part 53 of the shaping | molding part 5, the number of the hole cover parts 53 comprised with the cylinder 54 should just be two or more, and is not restrict | limited. For example, all the hole covering portions 53 of the plurality of hole covering portions 53 may be configured by the cylindrical body 54. Each of the second hole covering portions 532 of the forming portion 5 is a separate member from the upper covering portion 50 and the lower covering portion 51, but may be formed integrally with the upper covering portion 50 and the lower covering portion 51. Good.

  Further, the shape of the reinforcing rib 39 is not limited. For example, the reinforcing rib 39 may be composed of a plurality of ribs that are long in the longitudinal direction or the short direction of the seat body 3, or may be in a lattice shape.

  Moreover, the material of the core part 4 will not be restricted to a metal, if a density is larger than the shaping | molding part 5, and a density is larger than water. For example, the material of the core part 4 may be cement or the like. Similarly, the material of the molded part 5 may be a synthetic resin other than polypropylene, for example, FRP. Moreover, the material of the molding part 5 may be a material other than the synthetic resin.

  Moreover, each insertion hole of the seat main body 3 of the present embodiment is an insertion hole 37 that penetrates the seat main body 3 and opens in both the upper and lower directions, but does not penetrate the seat main body 3 and is only upward. It may be an open hole. That is, each fitting hole should just open at least upwards in the up-down both directions.

  The cushion 6 may be the cushion 6 that does not have the peripheral wall portion 63 and covers only the upper surface of the seat body 3.

  Further, the plurality of pins 84 of the mold 8 may be provided on the first mold 81, or may be provided on both the first mold 81 and the second mold 82.

(Second Embodiment)
Next, a second embodiment will be described based on FIGS. In the following description of the second embodiment, components that are the same as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 12, the chair of the second embodiment includes a backrest 90 and a pair of armrests 91, and is used by being installed in a bathroom washroom, for example.

  The leg portion 1 is made of a metal pipe and can be folded. The backrest 90 and the pair of armrests 91 are attached to an extension 14 that extends upward from the leg 1. Each of the pair of armrest portions 91 is rotatably connected to the extending portion 14.

  The seat body 3 shown in FIG. 13 is made of synthetic resin. The seat body 3 is rotatably connected to the leg 1 shown in FIG. For this reason, the user can make the chair compact by folding the leg portion 1 and rotating the pair of armrest portions 91 and the seat portion main body 3 along the extending portion 14.

  As shown in FIG. 13, the seat body 3 of the present embodiment also has a plurality of fitting holes 37 into which the plurality of protrusions 60 of the cushion 6 are respectively fitted. Each fitting hole 37 is an area 373 in which the fitting portion 64 that is displaced with respect to the fitting hole 37 as the cushion 6 contracts due to aging can be fitted, similarly to the fitting hole 37 of the first embodiment. have.

(Supplement)
In addition, you may combine suitably the structure of the bathroom chair of 1st Embodiment, and the structure of the bathroom chair of 2nd Embodiment. In addition, the design of the bathroom chair of the first embodiment and the bathroom chair of the second embodiment can be appropriately changed.

(effect)
The bathroom chairs of the first and second embodiments described above have the following characteristics. The bathroom chair has a seat 2. The seat 2 includes a seat body 3 and a cushion 6 disposed along the upper surface of the seat body 3. A fitting hole (fitting hole 37) opened upward is formed in the seat body 3. A protrusion 60 protruding downward is formed on the cushion 6. The protrusion 60 has a fitting portion 64 that is fitted into the fitting hole. The fitting hole has a region 373 into which the fitting portion 64 can be fitted when the fitting portion 64 is displaced with respect to the fitting hole due to contraction accompanying the aging of the cushion 6. Hereinafter, the bathroom chair having this feature is referred to as a bathroom chair according to the first aspect.

  In the bathroom chair according to the first aspect, even if the cushion 6 contracts due to aging, the user can easily fit the fitting portion 64 of the cushion 6 into the region 373 of the fitting hole of the seat body 3. Can do.

  In addition to the features of the bathroom chair of the first aspect, the bathroom chair of the first embodiment and the second embodiment has the following additional features. The cushion 6 has a plurality of protrusions 60. The seat body 3 has a plurality of insertion holes. Each of the plurality of protrusions 60 has a fitting portion 64 having a horizontal cross section of a circle. Each of the plurality of insertion holes is a long hole that is long in a direction parallel to an imaginary line L passing through the insertion hole and the center of the cushion 6 when viewed from the vertical direction. Hereinafter, the bathroom chair having this feature is referred to as a bathroom chair according to the second aspect.

  In the bathroom chair of the second aspect, even if the cushion 6 contracts toward the center of the cushion 6 when viewed from the top and bottom due to deterioration over time, the user can insert the plurality of protrusions 60 into the plurality of fitting holes, respectively. Can be fitted.

  Moreover, the bathroom chair of 1st Embodiment and 2nd Embodiment has the additional characteristic shown below in addition to the characteristic of the bathroom chair of the 1st or 2nd aspect. The cushion 6 is made of EVA resin. Hereinafter, the bathroom chair having this feature is referred to as a bathroom chair according to the third aspect.

  In the bathroom chair according to the third aspect, the user can comfortably sit on the seat 2 provided with the cushion 6 formed of EVA resin.

L Virtual line 2 Seat part 3 Seat body 37 Insertion hole (insertion hole)
373 area 6 cushion 60 protrusion 64 fitting part

Claims (3)

Comprising a seat,
The seat is
A seat body,
A cushion disposed along the upper surface of the seat body,
In the seat body, a fitting hole opened upward is formed,
A protrusion protruding downward is formed on the cushion,
The protrusion has a fitting portion fitted into the fitting hole,
The fitting hole has a region in which the fitting portion can be fitted when the fitting portion is displaced with respect to the fitting hole due to shrinkage due to aging of the cushion. And bathroom chair. The cushion is
A plurality of the protrusions;
The seat body is
Having a plurality of the fitting holes,
Each of the plurality of protrusions has a circular fitting section with a horizontal cross section,
2. Each of the plurality of fitting holes is a long hole that is long in a direction parallel to an imaginary line passing through the fitting hole and the center of the cushion when viewed from above and below. Bathroom chairs.   The bathroom chair according to claim 1 or 2, wherein the cushion is made of EVA resin.

Images