JP2018019929A - Bathroom chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress fixation of legs by a fixation mechanism from becoming insufficient.SOLUTION: A bathroom chair 1 includes: a seat plate 4; front legs 2 and rear legs 3 which support the seat plate 4; a turning mechanism (hinge pin P) which turns the rear legs 3 to the front legs 2; and a fixation mechanism (recessed part 61, protruding part 63 and spring 65) which fixes the rear legs 3 to prescribed positions where angles formed by the front legs 2 and the rear legs 3 are narrowed, by stopping turn by the turning mechanism (hinge pin P), and which is mounted on a position not exposed to the outside of the bathroom chair 1.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a bathroom chair.

  In general, it is convenient for a sick person, an elderly person, a disabled person, etc. to sit on a chair and wash their body when taking a bath. However, since the bathroom has a relatively small space, it is preferable that the bathroom can be made compact by folding it when the chair is not used. From such a viewpoint, a foldable bathroom chair has been proposed.

Patent document 1 is disclosing the folding chair which is pivotally supported so that a rear leg can be opened and closed with respect to a front leg, and can be folded compactly when not in use.
JP 2011-50641 A

  However, foreign substances such as moisture, soap, or hair adhere to the fixing mechanism (locking mechanism) that fixes the front and rear legs of the folding chair disclosed in Patent Document 1 when the chair is in use. When such a use state continues for a long period of time, there is a problem that the fixing of the front leg and the rear leg by the fixing mechanism becomes insufficient.

  An object of this invention is to provide the bathroom chair which suppresses that fixation of the leg by a fixing mechanism becomes inadequate.

  To achieve the above object, a bathroom chair according to an aspect of the present invention includes a seat plate, first and second legs that support the seat plate, and the second leg with respect to the first leg. And a fixing mechanism for fixing the second leg at a predetermined position where the angle formed by the first leg and the second leg is narrowed by stopping the rotation by the rotating mechanism. And a fixing mechanism provided at a position not exposed to the outside of the bathroom chair.

  The bathroom chair of the present invention can suppress insufficient fixation of the legs by the fixing mechanism.

It is a perspective view which shows the chair for bathrooms which concerns on embodiment. It is a disassembled perspective view of the seat part and the backrest in the bathroom chair which concerns on embodiment. It is an expansion perspective view which abbreviate | omits and shows the bathroom chair which concerns on embodiment. It is a side view which shows the use condition of the chair for bathrooms which concerns on embodiment. It is a side view which shows the storage state of the chair for bathrooms which concerns on embodiment. It is a side view which shows the rotation mechanism and fixing mechanism in the retracted state of the bathroom chair which concerns on embodiment. It is a side view which shows the rotation mechanism and fixing mechanism in the use condition of the chair for bathrooms which concerns on embodiment. It is a side view which shows the rotation range by the rotation mechanism of the bathroom chair which concerns on embodiment, and the fixed position by a fixing mechanism. It is a perspective view which shows the 1st attitude | position in the use condition of the chair for bathrooms which concerns on the modification of embodiment. It is a perspective view which shows the 2nd attitude | position in the use condition of the chair for bathrooms which concerns on the modification of embodiment. It is a side view which shows the storage state of the chair for bathrooms which concerns on the modification of embodiment.

  Hereinafter, the bathroom chair according to the present embodiment will be described with reference to the drawings. Note that each of the embodiments described below shows a preferred specific example of the present invention. Accordingly, the numerical values, shapes, materials, components, component arrangement positions, connection forms, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements. Each figure is a schematic diagram and is not necessarily illustrated strictly.

(Embodiment)
Hereinafter, embodiments of a bathroom chair of the present invention will be described with reference to the drawings. In the following explanation, explanation using the XYZ coordinate axes shown in each drawing may be performed. The positive and negative directions of the Z-axis are referred to as up (upward) and down (downward), respectively. The positive and negative directions of the Y-axis are respectively forward (forward) and backward (backward). ), And the positive and negative directions of the X-axis are sometimes referred to as right (right direction) and left (left direction), respectively.

  A basic configuration of the bathroom chair 1 of the present embodiment will be described with reference to FIGS.

  FIG. 1 is a perspective view showing a bathroom chair 1 according to the present embodiment. FIG. 2 is an exploded perspective view of the seat plate 4 and the backrest 5 in the bathroom chair 1 according to the present embodiment. FIG. 3 is an enlarged perspective view showing the bathroom chair 1 according to the present embodiment with a part thereof omitted. FIG. 4 is a side view showing a use state of the bathroom chair 1 according to the present embodiment. FIG. 5 is a side view showing a storage state of the bathroom chair according to the present embodiment.

  The bathroom chair 1 is attached to a front leg 2, a rear leg 3 pivotally supported by the front leg 2, a seat plate 4 provided over the front leg 2 and the rear leg 3, and an upper end portion of the front leg 2. A backrest 5 and a link 6 that connects the seat plate 4 and the rear leg 3 (specifically, a reinforcing rod 36 described later) are provided. It is assumed that the bathroom chair 1 is placed on a floor surface parallel to the XY plane.

  The front leg 2 includes a front leg body 21 and a front telescopic leg 22.

  The front leg body 21 is a frame that is bent in a substantially inverted U shape when viewed from the front and is bent in a substantially vertical Z shape when viewed from the side (that is, in the right direction or the left direction). The front leg main body 21 has a horizontal portion substantially parallel to the floor surface. The front telescopic leg 22 is a frame that is slidably inserted into each end of the front leg main body 21. The front leg main body 21 and the front telescopic leg 22 are formed of a rigid member, and more specifically, a metal pipe, for example, an aluminum pipe having excellent rust prevention and light weight.

  Positioning pins 24 are provided near the ends of the front leg main body 21 so as to protrude from the outer peripheral surface via springs 23 (see FIGS. 4 and 5). Further, plastic hinge brackets 25 are fixed to intermediate portions of the horizontal portions facing each other of the front leg main body 21, respectively. Further, a reinforcing rod 26 is welded between the front end portions of the horizontal portions facing each other of the front leg main body 21, and a reinforcing rod 261 is welded between the vicinity of the rear end portions of the horizontal portions. The reinforcing rods 26 and 261 have a function of reinforcing the structure of the front leg main body 21. A portion of the front leg body 21 closer to the end than the hinge bracket corresponds to the first leg.

  The front telescopic leg 22 has a plurality of positioning holes 22a at predetermined intervals corresponding to the positioning pins 24 provided in the front leg main body 21. Then, by fitting the positioning pin 24 into the positioning hole 22 a, the amount of expansion / contraction of the front telescopic leg 22 relative to the front leg main body 21 can be adjusted, and the front telescopic leg 22 can be fixed to the front leg main body 21.

  A leg rubber 27 having a shape that comes into surface contact with the floor surface in the state of use is attached to the lower end portion of the front telescopic leg 22 and has a function of preventing the washing scene on the floor surface from being damaged or slipping. Have.

  The rear leg 3 includes a rear leg main body 31 and a rear telescopic leg 32. The rear leg main body 31 is a frame bent in a substantially inverted L shape when viewed from the side. The rear leg main body 31 has a horizontal portion that is substantially parallel to the floor surface and a vertical portion that is substantially perpendicular to the floor surface. The rear telescopic legs 32 are frames that are slidably inserted into the lower ends of the rear leg bodies 31. The rear leg main body 31 and the rear telescopic leg 32 are formed of a rigid member, more specifically, an aluminum pipe, like the front leg 2. The rear leg 3 corresponds to the second leg.

  In the vicinity of the lower end of each rear leg main body 31, a positioning pin 34 is provided so as to protrude from the outer peripheral surface via a spring 33 (see FIGS. 4 and 5). The horizontal portion of the rear leg main body 31 is disposed below the horizontal portion of the front leg main body 21 described above, and a hinge bracket 35 is fixed to the front end portion thereof, that is, the front end portion. The hinge bracket 35 supports the hinge bracket 25 fixed to the front leg main body 21 and is connected to the hinge bracket 25 via a hinge pin P. By the connection via the hinge pin P, the pair of left and right rear leg bodies 31 can be rotated around the hinge pin P in conjunction with each other with respect to the front leg body 21.

  For example, the hinge pin P is located at the apex of an isosceles triangle whose base is a line segment connecting between the center of the grounding part of the front leg 2 (center of the leg rubber 27) and the center of the grounding part of the rear leg 3 (center of the leg rubber 37). Set to do. The hinge pin P corresponds to a rotation mechanism.

  In addition, a reinforcing rod 36 is welded between the vicinity of the intersecting portion where the horizontal portion and the vertical portion of the rear leg main body 31 face each other, and the pair of rear legs 3 can be operated in synchronization.

  A plurality of positioning holes 32a are formed in the rear telescopic legs 32 at predetermined intervals corresponding to the positioning pins 34 provided in the rear leg main body 31, and the positioning pins 34 are fitted into the positioning holes 32a. By combining them, the amount of expansion / contraction of the rear telescopic leg 32 relative to the rear leg main body 31 can be adjusted, and the rear telescopic leg 32 can be fixed to the rear leg main body 31. Further, a leg rubber 37 having a shape that comes into surface contact with the floor surface in use is attached to the lower end portion of the rear telescopic leg 32 to prevent the washing scene on the floor surface from being damaged or slipping. It has a function.

  The material of the front legs 2 and the rear legs 3 may be iron or stainless steel in addition to aluminum.

  As shown in detail in FIG. 2, the seat plate 4 includes a seat body 41 and a cushion portion 42. The seat body 41 is a substantially square hollow plastic member. The cushion portion 42 is a foamed plastic cushion member that is formed in a shape that matches the seat body 41 and covers the entire top surface of the seat body 41.

  A plurality of fitting holes 41 a are formed in the seat body 41, while a protrusion 42 a that fits into the fitting hole 41 a of the seat body 41 is formed downward on the back surface of the cushion portion 42. Yes. The cushion portion 42 can be easily attached to and detached from the seat body 41 by fitting and removing the protruding portion 42a of the cushion portion 42 from the fitting hole 41a of the seat body 41. Thereby, it becomes easy to remove the cushion part 42 from the seat main body 41, and to wash | clean or replace | exchange. Further, when the user sits on the seat plate 4, most of the user's buttocks contact the cushion portion 42, that is, the user's buttocks are prevented from contacting a rigid member such as the front leg 2. Therefore, there is an advantage that it is comfortable for the user. In the case where the rigid member such as the front leg 2 is a metal member, there is an advantage that it is suppressed that the user feels cold.

  The seat body 41 and the cushion portion 42 are formed with a plurality of drain holes 2a (see FIG. 1) penetrating both.

  In addition, the seat body 41 is pivotally connected to a reinforcing rod 261 welded between the vicinity of the rear end portions of the opposed horizontal portions of the front leg body 21 described above, at a position near the rear end of the substantially intermediate portion thereof. The rear end of the link 6 is pivotably connected to one end of the link 6, and the other end of the link 6 is welded between the vicinity of the intersection between the horizontal portion and the substantially vertical portion of the rear leg main body 31 described above. The reinforcing rod 36 is rotatably connected.

  Therefore, in FIG. 4, when the front end portion of the seat plate 4 is gripped and lifted, the seat plate 4 rotates clockwise around the shaft support portion (reinforcement rod 261) with the front leg 2 and is stored in a substantially vertical state. can do. At this time, the rear end portion of the seat plate 4 is pivotally supported by one end portion of the link 6, and the other end portion of the link 6 is pivotally supported by the rear leg body 31 (reinforcing rod 36) of the rear leg 3. Then, the seat plate 4 pushes down the rear leg 3 via the link 6 and rotates the rear leg 3 around the hinge pin P in the clockwise direction. For this reason, the rear leg 3 can be approached with respect to the front leg main body 21, and the front leg 2 and the rear leg 3 can be closed (refer FIG. 5).

  On the other hand, in FIG. 5, when the front end portion of the seat plate 4 is gripped and pushed down, the seat plate 4 rotates counterclockwise around the shaft support portion (reinforcement rod 261) with the front leg 2 to reinforce the front leg 2. The rod 26 is supported in a substantially horizontal state. At this time, the seat plate 4 pulls up the rear leg 3 through the link 6, rotates the rear leg 3 counterclockwise around the hinge pin P, separates the rear leg 3 from the front leg body 21, and moves the front leg 2. And the rear leg 3 can be opened (refer FIG. 4).

  As shown in FIG. 2, the backrest 5 includes a backrest main body 51 and a cushion portion 52. The backrest main body 51 is a substantially square hollow plastic member. The cushion portion 52 is a foamed plastic member that is formed in a shape that matches the backrest main body 51 and covers the entire front surface of the backrest main body 51.

  A plurality of fitting holes 51 a are formed in the backrest main body 51, while a protrusion 52 a that can be fitted into the fitting holes 51 a of the backrest main body 51 is formed on the back surface of the cushion portion 52 toward the rear. ing. The cushion portion 52 can be easily attached to and detached from the backrest body 51 by fitting and removing the protruding portion 52a of the cushion portion 52 from the fitting hole 51a of the backrest body 51. Thereby, the cushion part 52 can be easily removed from the backrest main body 51 and cleaned or replaced. In this case, the protruding portion 52a of the cushion portion 52 is fitted with a constant frictional force so as not to easily fall off from the fitting hole 51a of the backrest body 51. Further, when the user sits on the seat plate 4, most of the user's back is in contact with the cushion portion 52, that is, the user's back is prevented from contacting a rigid member such as the front leg 2. Therefore, there is an advantage that it is comfortable for the user. In the case where the rigid member such as the front leg 2 is a metal member, there is an advantage that it is suppressed that the user feels cold.

  In addition, the backrest main body 51 and the cushion part 52 are formed with a gripping hole 5a (see FIG. 1) penetrating both. The user can carry the bathroom chair 1 by inserting a finger into the holding hole 5a.

  The backrest body 51 of the backrest 5 is screwed to the mounting bracket 7 fixed to the horizontal upper end portion of the front leg main body 21 and the horizontal upper end portion of the front leg main body 21.

  Next, the operation of the bathroom chair 1 configured as described above will be described.

  When the bathroom chair 1 is in the use state shown in FIGS. 1 and 4, the seat plate 4 is pivotally connected to the reinforcing rod 261 of the front leg 2 and is substantially horizontal to the reinforcing rod 26 of the front leg 2. It is supported. Further, the rear leg 3 is opened so as to be separated from the front leg 2, and the leg rubbers 27 and 37 are grounded to the floor surface.

  In this state, the user can sit on the seat plate 4 and wash the body. At this time, since the cushion portions 42 and 52 provided so as to cover the seat main body 41 and the backrest main body 51 come into contact with the user's buttocks and back, the coldness in winter can be alleviated and the sitting comfort can be reduced. good. Further, when the user enters the bathtub, there is no obstacle such as an elbow rest on the side of the seat plate 4, so that the user's body only needs to be slid in the left-right direction. In other words, when the user enters the bathtub, it is not necessary for the user to move the body in the front-rear direction or the up-down direction. Specifically, by arranging the upper surface of the seat plate 4 so as to be continuous at the same height as the upper surface of the bathtub (not shown), the user's collar can be easily transferred from the seat plate 4 to the bathtub wall. Can reduce the burden of work by the caregiver.

  Further, when the use of the bathroom chair 1 is finished, in FIG. 1 and FIG. 4, the user grasps and lifts the front end portion of the seat plate 4, so that the seat plate 4 is pivoted with the front leg 2 ( The reinforcing rod 261) rotates clockwise. At this time, the rear end portion of the seat plate 4 is pivotally supported with one end portion of the link 6, and the other end portion of the link 6 is pivotally supported with the rear leg body 31 (reinforcing rod 36) of the rear leg 3. The seat plate 4 pushes down the rear leg 3 via the link 6, rotates the rear leg 3 clockwise around the hinge pin P, brings the rear leg 3 closer to the front leg body 21, and the front leg 2 and the rear leg 3. Can be closed. In addition, the closed front leg 2 and rear leg 3 are grounded to the floor at the same height, and the substantially vertical seat plate 4 is also disposed between the closed front leg 2 and rear leg 3, so that it is in the retracted state. Even when the front leg 2 and the rear leg 3 are closed, the bathroom chair 1 is self-supporting. As a result, the bathroom chair 1 can be stored in a small space while standing independently (see FIG. 5).

  In the retracted state shown in FIG. 5, in a side view, the shaft support portion between the one end portion of the link 6 and the seat plate 4 is the shaft support portion (reinforcing rod 36) between the other end portion of the link 6 and the rear leg 3 and the front leg 2. It is on the shaft support part (hinge pin P) side of the front leg 2 and the rear leg 3 beyond the line connecting the shaft support part (reinforcing rod 261) between the seat plate 4 and the seat plate 4. As described above, the shaft support portion (reinforcement rod 261) between the front leg 2 and the seat plate 4, the shaft support portion between the one end portion of the link 6 and the seat plate 4, and the shaft support portion between the other end portion of the link 6 and the rear leg 3. (Reinforcing rod 36) serves as a connection point of a toggle mechanism formed by connecting two links in an L shape. Therefore, depending on the weight of the seat plate 4, the shaft support portion between the one end portion of the link 6 positioned on the shaft support portion (hinge pin P) side of the front leg 2 and the rear leg 3 and the seat plate 4 may be in addition to the link 6. The shaft support portion (reinforcement rod 36) between the end portion and the rear leg 3 and the line segment connecting the shaft support portion (reinforcement rod 261) between the front leg 2 and the seat plate 4 are not exceeded, and the seat plate 4 is in a substantially vertical state. Retained.

  On the other hand, when the bathroom chair 1 is used, when the front end portion of the seat plate 4 is grasped and pushed down in the retracted state, the seat plate 4 rotates counterclockwise around the shaft support portion (reinforcement rod 261) with the front leg 2. Rotate in the direction. That is, by the play of each shaft support portion, the shaft support portion between one end portion of the link 6 located on the shaft support portion (hinge pin P) side of the front leg 2 and the rear leg 3 and the rear end portion of the seat plate 4 is changed to the link 6. It can be located beyond the line connecting the shaft support portion (reinforcement rod 36) between the other end portion of the rear leg 3 and the shaft support portion (reinforcement rod 261) between the front leg 2 and the seat plate 4. Accordingly, the seat plate 4 pulls up the rear leg 3 via the link 6, rotates the rear leg 3 counterclockwise around the hinge pin P, separates the rear leg 3 from the front leg body 21, and moves the front leg 2 and The rear leg 3 can be opened (see FIG. 4).

  With the above configuration, the bathroom chair 1 can stand by itself without slipping by the front legs 2 and the rear legs 3 in the use state, and can stand alone while maintaining the retracted state.

  However, an object may hit or vibration may be applied to the bathroom chair 1 in the retracted state. Further, when the washing scene has an inclination, when the front leg 2 side of the bathroom chair 1 in the retracted state is arranged on the lower side of the inclination, the force acting on the seat board 4 pushes the seat board 4 downward (see FIG. 5 acts as a force for rotating the seat plate 4 counterclockwise. In such a case, the force exerted by an object or vibration, or gravity, may cause a problem that the holding of the seat plate 4 by the toggle mechanism is released, and the bathroom chair 1 cannot maintain the retracted state.

  Therefore, in order to solve this problem, the hinge pin P (rotation mechanism) of the bathroom chair 1 has a fixing mechanism. This fixing mechanism will be described in detail later.

  FIG. 6 is a side view showing the turning mechanism and the fixing mechanism in the retracted state of the bathroom chair 1 according to the present embodiment. FIG. 7 is a side view showing the rotation mechanism and the fixing mechanism in the use state of the bathroom chair 1 according to the present embodiment.

  As shown in FIGS. 6 and 7, the hinge bracket 25 of the bathroom chair 1 has a recess 61. The concave portion 61 has a hollow shape that fits into a convex portion 63 to be described later, and is provided at a position that is not exposed to the outside of the bathroom chair 1. Further, the recess 61 is provided at a position and a direction in which the protrusion 63 is fitted in a state where the front leg 2 and the rear leg 3 are closed.

  The hinge bracket 35 of the bathroom chair 1 has a convex portion 63 and a spring 65. The convex portion 63 has a shape that fits into the concave portion 61. The spring 65 is connected to the convex portion 63, and exerts an urging force on the convex portion 63 to urge the convex portion 63 in a direction in which the convex portion 63 approaches the hinge pin P (that is, a direction in which the convex portion 63 approaches the concave portion 61). The convex portion 63 and the spring 65 are provided at a position where they are not exposed to the outside of the bathroom chair 1 and are fixed to the hinge bracket 35, and when the rear leg body 31 rotates around the hinge pin P, the rear leg body 31. It rotates with. The spring 65 is an example of a spring portion, and an elastic body such as rubber can be employed instead of the spring 65.

  The convex portion 63 is engaged with the concave portion 61 in a state where the front leg 2 and the rear leg 3 are closed, thereby fixing the positions of the front leg 2 and the rear leg 3 to stop the rotation around the hinge pin P (FIG. 6). reference). Further, when the convex portion 63 is in a position where it does not fit into the concave portion 61, the convex portion 63 is movable along the outer peripheral surface in a state where the tip of the convex portion 63 is in contact with the outer peripheral surface of the hinge bracket 25. And the force which fixes the position of the rear leg 3 to a rotation direction is not exerted (refer FIG. 7).

  The recess 61, the protrusion 63, and the spring 65 stop the rotation of the rear leg 3 with respect to the front leg 2, so that the rear leg 3 is placed at a predetermined position where the angle between the front leg 2 and the rear leg 3 is narrowed. It corresponds to a fixing mechanism for fixing. Here, the “angle formed by the front leg 2 and the rear leg 3” refers to the angle φ in FIG. The fixing mechanism can also be said to fix the rear leg 3 at a predetermined position where the rear leg 3 is brought close to the front leg 2 by stopping the rotation of the rear leg 3 with respect to the front leg 2. If the fixing mechanism is provided at a position exposed to the outside of the bathroom chair 1, moisture, soap, and other foreign matters adhere to the concave portion 61, the convex portion 63, and the spring 65, which are the fixing mechanism, and the concave portion The fitting of 61 and the convex part 63 may become inadequate, and the urging | biasing force which the spring 65 exerts may be weakened. Since the fixing mechanism of the bathroom chair 1 according to the present embodiment is provided at a position where it is not exposed to the outside of the bathroom chair 1, it is possible to prevent moisture and the like from adhering to the front chair 2 and the rear leg by the fixing mechanism. The problem of insufficient fixing of 3 may be avoided in advance.

  In the state where the positions of the front legs 2 and the rear legs 3 are fixed by the concave portions 61 and the convex portions 63 (FIG. 6), when a predetermined or more counterclockwise force is applied to the rear leg main body 31, the convex portions 63 are provided. By releasing from the recess 61, the fixing of the positions of the front leg 2 and the rear leg 3 is released. In addition, the recessed part 61 may have a taper shape in which a width | variety becomes narrow gradually as it penetrate | invades from an opening part. When the concave portion 61 has such a tapered shape, there is an advantage that the convex portion 63 can be smoothly detached from the concave portion 61 when a force exceeding the predetermined value is applied. On the other hand, if the change in the width of the tapered shape is too large, the force for fixing the positions of the front legs 2 and the rear legs 3 may be weakened. Therefore, the taper shape should be appropriately set according to the urging force exerted by the spring 65, the assumed inclination of the floor surface, and the like.

  Next, the movable range of the rear leg main body 31 by the hinge pin P and the fixing position of the rear leg main body 31 by the fixing mechanism will be described.

  In FIG. 6, the movable range of the rear leg main body 31 by the hinge pin P (more specifically, the rotational range of the central axis of the rear leg main body 31) is shown as a movable range R. In the retracted state of the bathroom chair 1, the central axis of the rear leg body 31 is at the position of the central axis J0 (see FIG. 7). When the bathroom chair 1 is in use, the central axis of the rear leg body 31 is at the position of the central axis J1 obtained by rotating the central axis J0 clockwise about the hinge pin P by an angle θ1 (see FIG. 6). . The concave portion 61 is disposed on the central axis J1. When the convex portion 63 rotates around the hinge pin P and is positioned on the central axis J1, the concave portion 61 is convex by the urging force exerted on the convex portion 63. The part 63 fits into the recess 61.

  That is, the fixing mechanism fixes the rear leg 3 at a position where the angle φ formed by the front leg 2 and the rear leg 3 is the smallest in the movable range R of the rear leg main body 31. Thereby, the fixing mechanism can fix the rear leg 3 and the front leg 2 in the retracted state in which the rear leg main body 31 is closest to the front leg 2.

  In addition, the fixing mechanism is not limited to the above, and the rear leg 3 may be fixed at a position where the angle φ formed by the front leg 2 and the rear leg 3 is included in a predetermined angle range.

  FIG. 8 is a side view showing a rotation range by the hinge pin P (rotation mechanism) of the bathroom chair 1 according to the present embodiment and a fixing position by the fixing mechanism. This fixed position is an example of a fixed position within a predetermined angle range S from the front leg 2. In FIG. 8, for the convenience of explanation, illustration of the outer shape of the rear leg body 31 is omitted, and only the position of the central axis of the rear leg body 31 is illustrated.

  In FIG. 8, the recess 61 </ b> A has the same function as the recess 61, but is disposed at a position different from the recess 61. Specifically, the recess 61A is disposed on the central axis J2 rotated about the hinge pin P by the angle θ2 clockwise from the central axis J0. The rear leg main body 31 is fixed at the position of the central axis J2 by the fixing mechanism including the recess 61A.

  The predetermined angle range S is not particularly limited. For example, the predetermined angle range S may be defined as a range of 0 degrees to 10 degrees, or a range of 0 degrees to 30 degrees, or an angle of the movable range R. It may be determined as a ratio to the movable range R, such as 1/5 or 1/10 of the range. The predetermined angle range affects the width in the front-rear direction of the bathroom chair 1 in the retracted state. If the angle range is set to be small, there is an advantage that the width in the front-rear direction in the storage state can be reduced. There is an advantage that can be. Therefore, the angle range should be appropriately set in consideration of these advantages.

  In the above description, the configuration in which the hinge bracket 25 has the concave portion 61 (or the concave portion 61A) and the hinge bracket 35 has the convex portion 63 has been described. However, these relationships may be reversed. That is, the hinge bracket 25 may have the recess 61 (or the recess 61A) and the hinge bracket 25 may have the protrusion 63. Moreover, although the structure where the spring 65 is connected to the convex part 63 was demonstrated, the spring 65 may be connected to the recessed part 61 grade | etc., And the two springs 65 are connected to each of the recessed part 61 and the convex part 63. It may be configured.

  Note that the fixing mechanism (that is, the concave portion 61, the convex portion 63, and the spring 65) may be provided only on one of the left and right of the pair of left and right front legs 2 and rear legs 3. That is, the front leg 2 whose rotation is fixed by the fixing mechanism is only one of the left and right front legs 2 of the pair of left and right front legs 2 of the bathroom chair 1, and the rotation is fixed by the fixing mechanism. The rear legs 3 may be the left and right rear legs 3 of the pair of left and right rear legs 3 of the bathroom chair 1. If it does in this way, there exists an advantage which can be manufactured at low cost rather than providing a fixing mechanism in both right and left.

  Further, when the concave portion 61 (or the concave portion 61A) and the convex portion 63 are fitted to each other, it is necessary that the concave direction of the concave portion 61 and the protruding direction of the convex portion 63 substantially coincide with each other. There is no limitation as to which direction is. That is, the concave direction of the concave portion 61 and the protruding direction of the convex portion 63 may be the Y-axis direction (left-right direction).

(Modification of the embodiment)
In this modification, a fixing mechanism in a bathroom chair having a different form from the bathroom chair in the above embodiment will be described. The bathroom chair according to the present modification is characterized in that the seat portion is configured to be rotatable with respect to the front legs and the rear legs. In addition, about the same component as embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  FIG. 9 is a perspective view showing a first posture in a use state of the bathroom chair 1A according to the present modification. FIG. 10 is a perspective view showing a second posture of the bathroom chair 1 </ b> A according to this modification in the use state.

  As shown in FIGS. 9 and 10, the bathroom chair 1A includes a front leg 2b, a support column 2d, a rear leg 3 pivotally supported by the front leg 2b, and above the front leg 2b and the rear leg 3. A seat plate 4 provided on the upper end of the front leg 2b, a backrest 5 attached to the upper end of the front leg 2b, a rotation mechanism unit 16, and a rotation limiting device 40.

  Of the constituent elements of the bathroom chair 1A, the front leg 2b and the support post 2d correspond to the front leg body 21 in the embodiment. In order to make the seat part rotatable with respect to the front leg 2b and the rear leg 3, the front leg 2b and the column part 2d are separated. The front leg 2b is connected to the seat plate 4, and the rear leg 3 is connected to the front leg 2b via the rotation mechanism without going through the seat plate 4.

  The front leg 2 b includes a front leg body 2 c and a front telescopic leg 22. Like the front leg body 21 of the embodiment, the front leg body 2c is a frame that is bent in a substantially inverted U shape when viewed from the front and is bent in a substantially vertical L shape when viewed from the side.

  The rotation mechanism unit 16 connects the seat plate 4 to the front leg 2b so as to be rotatable about a rotation axis A1 along the normal direction (Z-axis direction) of the seat plate 4. In addition, since the prior art can be employ | adopted about the method of rotation by the rotation mechanism part 16, and the method of restrict | limiting rotation, detailed description is abbreviate | omitted.

  The bathroom chair 1A can be in a retracted state, similarly to the bathroom chair 1 of the embodiment.

  FIG. 11 is a side view showing the storage state of the bathroom chair 1A according to the present modification. The bathroom chair 1A can close the front legs 2b and the rear legs 3 by bringing the rear legs 3 close to the front legs 2b around the hinge pins P from the use state shown in FIG.

  1 A of bathroom chairs are provided with the same rotation mechanism and fixing mechanism as the bathroom chair 1 in the connection part of the front leg 2b and the rear leg 3. As shown in FIG. Therefore, the bathroom chair 1A, like the bathroom chair 1, uses the fixing mechanism shown in FIGS. 6 to 8 to fix the position of the rear leg 3 with respect to the front leg 2b, thereby changing the use state (FIGS. 9 and 10). Or the storage state (FIG. 11).

  As described above, in the bathroom chair 1A, the front leg 2b and the support post 2d are separated from each other so that the seat can be rotated with respect to the front leg 2b and the rear leg 3. If the seat does not rotate with respect to the front leg 2b and the rear leg 3, the rear leg 3 is fixed to the seat plate 4 instead of fixing the rear leg 3 to the front leg 2b. It is also possible to employ a fixing mechanism. However, when the seat plate 4 rotates with respect to the front leg 2b and the rear leg 3, the relative position between the seat plate 4 and the rear leg 3 changes due to this rotation. It is difficult to employ a fixing mechanism that fixes the rear leg 3.

  Therefore, the bathroom chair 1A employs a fixing mechanism that fixes the front legs 2b and the rear legs 3 by stopping the rotation of the rear legs 3 with respect to the front legs 2b. Thereby, even if it is 1A of bathroom chairs from which the relative position of the seat board 4 and the rear leg 3 changes, the front leg 2b and the rear leg 3 can be fixed and a storage state can be taken.

  As described above, the bathroom chair 1 and the like in the present embodiment includes the seat plate 4, the front legs 2 and the rear legs 3 that support the seat plate 4, and the hinge pins P that rotate the rear legs 3 with respect to the front legs 2. A fixing mechanism (concave part 61, convex part 63 and spring 65) for fixing the rear leg 3 to a predetermined position where the angle formed by the front leg 2 and the rear leg 3 is narrowed by stopping the rotation by the hinge pin P, And a fixing mechanism provided at a position not exposed to the outside, such as the bathroom chair 1.

  According to this, since the fixing mechanism for fixing the front legs 2 and the rear legs 3 of the bathroom chair 1 and the like is provided at a position not exposed to the outside of the bathroom chair 1 and the like, the fixing mechanism has moisture, soap content. In addition, foreign matter such as hair is prevented from adhering. If the fixing mechanism is provided at a position that is exposed to the outside of the bathroom chair 1 or the like, moisture, soap, or other foreign matter such as hair adheres to the fixing mechanism, and the front legs and the rear by the fixing mechanism. There may be a problem of insufficient leg fixation. The bathroom chair 1 of the present embodiment solves the problem that the fixing of the front legs and the rear legs by the fixing mechanism is insufficient. As described above, the bathroom chair 1 and the like can suppress insufficient fixation of the legs by the fixing mechanism.

  For example, the fixing mechanism fixes the rear leg 3 at the predetermined position where the angle formed by the front leg 2 and the rear leg 3 is included in a predetermined angle range.

  According to this, the chair 1 for bathrooms etc. can take the compact stored state with which the front leg 2 and the rear leg 3 closed rather than the use state. This also has the advantage of increasing the spatial margin of the bathroom.

  For example, the fixing mechanism fixes the rear leg 3 at the predetermined position where the angle formed by the front leg 2 and the rear leg 3 is the smallest in the movable range of the rear leg 3 by the rotation mechanism.

  According to this, the bathroom chair 1 and the like can be in the most compact storage state in which the rear leg 3 is closest to the front leg 2. This also has the advantage of further increasing the spatial margin of the bathroom.

  For example, the front leg 2 is connected to the seat plate 4, and the rear leg 3 is connected to the front leg 2 via the rotation mechanism without going through the seat plate 4.

  According to this, even if the bathroom chair 1A is a bathroom chair 1A in which the relative position between the seat plate 4 and the rear leg 3 is changed, the front leg 2 and the rear leg 3 are fixed and the stored state is taken. be able to.

  For example, the fixing mechanism is a concave portion 61 provided on one of the front leg 2 and the rear leg 3 and a convex portion 63 provided on the other side of the front leg 2 and the rear leg 3, and is fitted to the concave portion 61. The projection 63 that fixes the rear leg 3 and the spring 65 that biases one of the recess 61 and the projection 63 in a direction approaching the other are provided.

  According to this, the chair 1 for bathroom etc. can suppress that the fixation of the leg by a fixing mechanism becomes inadequate by the comparatively simple structure of a recessed part, a convex part, and a spring part.

  For example, the front leg 2 is only one of the left and right front legs 2 of the pair of left and right front legs 2 such as the bathroom chair 1, and the rear leg 3 is the pair of left and right rear legs 3 such as the bathroom chair 1. Of these, only one of the left and right rear legs 3 is shown.

  According to this, the bathroom chair 1 or the like has an advantage that it can be manufactured at a lower cost than that provided with fixing mechanisms on both the left and right sides.

(Other)
As mentioned above, although the bathroom chair which concerns on this invention was demonstrated based on the said embodiment, this invention is not limited to said embodiment.

  In addition, it is realized by arbitrarily combining the components and functions in each embodiment without departing from the scope of the present invention, and forms obtained by making various modifications conceived by those skilled in the art to each embodiment. Forms are also included in the present invention.

DESCRIPTION OF SYMBOLS 1, 1A Bathroom chair 2, 2b Front leg 3 Rear leg 4 Seat plate 23, 33, 65 Spring 63 Protrusion part 61, 61A Concavity P Hinge pin R Movable range S Angle range

Claims (6)

A bathroom chair,
A seat plate,
A first leg and a second leg that support the seat plate;
A rotation mechanism for rotating the second leg with respect to the first leg;
A fixing mechanism for fixing the second leg to a predetermined position in which an angle formed by the first leg and the second leg is narrowed by stopping rotation by the rotation mechanism, the exterior of the bathroom chair A bathroom chair provided with a fixing mechanism provided at a position not exposed to the wall. The bathroom chair according to claim 1, wherein the fixing mechanism fixes the second leg at the predetermined position where an angle formed by the first leg and the second leg is included in a predetermined angle range. . The fixing mechanism fixes the second leg to the predetermined position where the angle formed by the first leg and the second leg is the smallest in the movable range of the second leg by the rotation mechanism. The bathroom chair according to claim 1 or 2. The first leg is connected to the seat plate;
The bathroom chair according to any one of claims 1 to 3, wherein the second leg is connected to the first leg via the rotation mechanism without the seat plate. The fixing mechanism is
A recess provided in one of the first leg and the second leg;
A convex portion provided on the other of the first leg and the second leg, the convex portion fixing the second leg by fitting with the concave portion;
The bathroom chair according to any one of claims 1 to 4, further comprising a spring portion that biases one of the concave portion and the convex portion toward the other. The first leg is
Of the pair of left and right front legs of the bathroom chair, the left and right front legs only,
The second leg is
The bathroom chair according to any one of claims 1 to 5, wherein the bathroom chair is only one of the left and right rear legs of the pair of left and right rear legs of the bathroom chair.

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