JP5607908B2 - Bathroom chair - Google Patents

Description

  The present invention relates to a chair used in a bathroom.

  When taking a bath, it is convenient for a sick person, an elderly person, a disabled person, etc. to sit on a chair with a backrest and wash their bodies. Such a chair is formed with a seat on which a person sits, a backrest on which a person rests, and legs that support these seats and the backrest. For this, it is desirable that it can be folded and compact when not in use.

  For this reason, in addition to enabling the leg to be folded, the seat can be pivoted upward so that the seat can be rotated and folded when the leg is folded. Making it compact is performed (for example, refer patent document 1 etc.).

  In the bathroom chair that can be folded and rotated in this manner, the seat can be held in a state where it can be seated by lying down horizontally, so that it can sit on the seat stably. In order to achieve this, a device provided with a lock device that holds the seat in this horizontal state has been proposed (see Patent Document 2).

  As shown in FIG. 13, the chair according to Patent Document 2 includes a leg portion 1 formed by connecting a front leg 8 and a rear leg 9 so as to be rotatable, and a backrest column 11 formed by extending the front leg 8. The backrest 3 is provided, and the seat 2 is attached to the leg 1 so as to be pivotable up and down. As shown in FIG. 13A, a recess 20 is formed in the rear end edge of the seat portion 2, and a lock device 21 is provided in the recess 20. The locking device 21 is formed with a handle 23 pivotally supported by a shaft 22, an engaging claw 24 is provided at the lower portion of the handle 23, and a release operation tool 25 is provided at the rear end portion of the handle 23. The handle 23 is urged to rotate downward by a spring 26.

  The leg portion 1 is provided with a lock bar 27, and when the seat portion 2 is rotated to be in a horizontal state, the engaging claw 24 of the handle 23 is engaged with the lock bar 27 as shown in FIG. The seat 2 is maintained in this horizontal state. Therefore, even when sitting on the front end portion of the seat portion 2, the seat portion 2 can be stably seated without causing the seat portion 2 to rotate carelessly.

  When the chair is folded, the release operation tool 25 at the rear end of the handle 23 is pulled upward to rotate the handle 23 upward against the spring 26, so that the engagement claw 24 with respect to the lock bar 27 is engaged. The engagement can be released. By releasing the engagement by the lock device 21 in this way, the seat portion 2 can be rotated upward, and the chair can be folded as shown in FIG.

Japanese Patent Laid-Open No. 2007-037608 JP 2008-259807 A

  As described above, in the chair of Patent Document 2, the operation of rotating the handle 23 to release the engagement by the lock device 21 is performed by pulling up the release operation tool 25 of the handle 23. The operation of the release operation tool 25 needs to be performed by inserting a hand up to the rear end portion of the seat portion 2 on the lower side of the backrest portion 3 (see an arrow in FIG. 13A).

  However, the seat portion 2 is at a low position of the chair, and in order to insert a hand up to the rear end portion of the seat portion 2, it is necessary to operate in a deeply crouched posture, and the release operation tool 25 is operated. Thus, there has been a problem that the operation of disengaging the lock device 21 cannot be easily performed.

  The present invention has been made in view of the above points, and can operate the release operation tool in an easy posture without the need to bend and easily perform the operation of disengaging the seat portion by the lock device. An object of the present invention is to provide a bathroom chair that can be used.

The bathroom chair according to the present invention is formed with a leg portion 1, a seat portion 2, and a backrest portion 3, and the seat portion 2 is between a horizontal state and a state in which the seat portion 2 is rotated and folded upward. It is a bathroom chair attached to the leg 1 so as to be rotatable, and includes a lock device 4 that engages the leg 1 with the horizontally rotated seat 2 and holds it in a horizontal state. A release operation tool 5 for releasing the engagement is provided on the backrest portion 3, and the release operation tool 5 has a lever piece 66 for catching a hand. A through-hole 14 to be inserted is provided, and the engagement by the lock device 4 is released by grasping the backrest part 3 and the release operation tool 5 with one hand.

According to the present invention, the operation of disengaging the seat portion 2 by the locking device 4 can be performed by the release operation tool 5 provided on the backrest portion 3, and the backrest portion 3 at a high position of the chair can be operated. The provided release operating tool 5 can be operated in a standing and easy posture without the need to bend down, and the operation of disengaging is facilitated. Further, by adjusting the length of the finger inserted into the through hole 14, the overhanging portion 13 and the release operation tool 5 can be easily grasped with one hand regardless of the size of the palm.

  The present invention also includes a release wire 6 for remotely transmitting the operation of the release operation tool 5 to the lock device 4 between the lock device 4 provided on the seat portion 2 and the release operation tool 5 provided on the backrest portion 3. It is characterized by this.

  According to the present invention, even if the release operation tool 5 of the backrest 3 is separated from the lock device 4 of the seat 2, the release device 5 can be used to remotely connect the lock device 4 via the release wire 6. It can be operated.

  Further, the present invention is characterized in that a spring 7 is provided that urges the seat 2 to rotate upward.

  According to the present invention, when the seat 2 is disengaged by the locking device 4, the seat 2 is automatically rotated upward by the spring 7, and the seat 2 can be folded by one-hand operation. Is possible.

Further, according to the present invention, the leg portion 1 is formed such that the front leg 8 and the rear leg 9 are pivotally connected to each other so that the leg 1 can be folded and opened, and the front leg 8 and the rear leg 9 are folded in the direction of folding. A connecting tool 10 that interlocks the rotation in the direction in which the front leg 8 and the rear leg 9 are opened and the downward rotation of the seat 2 is connected to the leg 1 and the seat 2. It is characterized by being provided between.

  According to this invention, when the seat part 2 is rotated upward and folded, the leg part 1 can be folded in conjunction with the seat part 2 and the seat part 2 can be turned downward and can be seated. In this case, the leg portion 1 can be opened in conjunction with this, and the seat portion 2 and the leg portion 1 can be simultaneously opened and closed by one operation. In particular, when the seat 2 is urged to rotate upward by the spring 7 as described above, the engagement of the seat 2 by the locking device 4 is released and the seat 2 is automatically rotated upward by the spring 7. The leg 1 is also folded at the same time as it is moved, so that the chair can be folded by one-handed operation.

Further, the present invention forms a backrest column 11 by extending the upper part of the front leg 8 from the rear support 9 pivotally connected to the rear leg 9 so as to be back and upward, and providing the backrest 3 with the backrest 11. An overhanging portion 13 is formed on the upper end of the backrest portion 3 so as to project to the back side.

  According to the present invention, when the leg portion 1 is opened from the folded state, the protruding portion 13 at the upper end of the backrest portion 3 is pressed downward with the front leg 8 floating from the floor and the rear leg 9 grounded to the floor. The backrest 11 is pivoted downward with the pivot 12 as a fulcrum, and at the same time the front leg 8 is pivoted upward, and the front leg 8 can be pivoted away from the rear leg 9 and opened with one hand. The leg portion 1 can be easily opened by simply pressing the overhanging portion 13. In particular, when the opening / closing of the leg portion 1 and the rotation of the seat portion 2 are interlocked as described above, the seat portion 2 is horizontally moved simultaneously when the overhanging portion 13 is pressed with one hand to open the leg portion 1. The operation of opening the chair so that it can be seated on the seat 2 can be performed with one-hand operation.

  Further, in the present invention, the release operation tool 5 is formed so as to be disengaged by rotating upward, and the release operation tool 5 is placed at a position where the overhanging portion 13 and the release operation tool 5 can be grasped simultaneously with one hand. It is characterized by being arranged on the back surface of the backrest 3.

  According to this invention, the release operation tool 5 is lifted and rotated by grasping and grasping the overhanging portion 13 at the upper end of the backrest portion 3 and the release operation tool 5 with one hand, and the locking device 4 engages the seat 2. In this case, the disengagement operation can be performed with one hand while supporting the upper end of the backrest 3 with one hand.

Or the present invention, the overhang portion 13 can be opened by pressing downwardly, characterized in that it can be folded by operating the release operation member 5.

  According to the present invention, the operation of disengaging the seat portion 2 by the locking device 4 can be performed by the release operation tool 5 provided on the backrest portion 3, and the backrest portion 3 located at a high position of the chair. The provided release operating tool 5 can be operated in a standing and easy posture without the need to bend down, and the operation of releasing the engagement is facilitated.

It is a perspective view which shows an example of embodiment of this invention. An example of embodiment of this invention is shown and it is the II sectional view taken on the line of FIG.3 (b). An example of embodiment of this invention is shown, (a) is a front view, (b) is a rear view. FIG. 3 shows an example of an embodiment of the present invention, where (a) is a cross-sectional view taken along the line of FIG. 3 (a ) , (b) is an enlarged view of a section C of FIG. 4 (a), and ( c ). FIG. 5 is an enlarged perspective view of a portion C in FIG. An example of embodiment of this invention is shown and it is a perspective view of a seat part. An example of embodiment of this invention is shown, (a) is a bottom view of a seat part, (b) is a side view of a seat part. An example of embodiment of this invention is shown and it is a perspective view of a backrest part. BRIEF DESCRIPTION OF THE DRAWINGS An example of embodiment of this invention is shown, (a) is a rear view of a backrest part, (b) is a top view of a backrest part, (c) is a side view of a backrest part. An example of embodiment of this invention is shown, (a) is sectional drawing of a seat part, (b) is sectional drawing of a backrest part. It shows an example of embodiment of this invention and is a front view of the folded state. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an example of an embodiment of the present invention, and (a) to (c) are schematic views showing operations of engagement / release of a locking device of a locking device. An example of embodiment of this invention is shown and it is a front view which shows operation which opens the chair for bathrooms. A conventional example is shown, and (a) and (b) are side views, respectively.

  Embodiments of the present invention will be described below.

  As shown in FIG. 1, the leg 1 of the bathroom chair is composed of a pair of front legs 8 and a pair of rear legs 9. The front legs 8 and the rear legs 9 are hollow. It is formed with a pipe. The upper part of the front leg 8 is a horizontal part 30 extending horizontally toward the rear, and a backrest column 11 is extended from the rear end part of the horizontal part 30 further upward. The upper ends of the backrest columns 11 of the pair of front legs 8 are integrally connected by a backrest attachment portion 31. Therefore, the pair of front legs 8 can be integrally formed by bending a single pipe. The upper portions of the pair of rear legs 9 are formed as horizontal portions 32 extending forward.

  A front hinge 33 is attached to the horizontal portion 30 of each front leg 8 and a rear hinge 34 is attached to the horizontal portion 32 of each rear leg 9. Then, the rear hinges 34 of the rear legs 9 are arranged below the front hinges 33 of the front legs 8, and the front hinges 33 and the rear hinges 34 are pivotally attached to the pivotal support portions 12 including shaft pins so as to be pivotable up and down. The leg portion 1 in which the front leg 8 and the rear leg 9 are rotatably connected can be formed. The front leg 8 and the rear leg 9 can be folded and opened and closed between a state where the front leg 8 and the rear leg 9 are close to each other and a state where the lower ends of the front leg 8 and the rear leg 9 are close to each other.

  Here, pipe-shaped front telescopic legs 41 and rear telescopic legs 42 are slidably attached to the outer periphery of the lower portions of the front legs 8 and the rear legs 9 so that the front legs 8 and the rear legs 9 Length adjustment (height adjustment) can be performed. That is, the front telescopic leg portion 41 and the rear telescopic leg portion 42 are provided with a large number of positioning holes 43 at regular intervals in the vertical direction, and the positioning pins 44 urged by the springs 46 in the front leg 8 and the rear leg 9. The front telescopic leg portion 41 and the rear telescopic leg portion 42 are fixed in a state of being expanded and contracted to an arbitrary length by fitting the positioning pin 44 into the arbitrary positioning hole 43 ( (See FIG. 10). Further, leg rubbers 45 for preventing the bathroom floor from being damaged or slipping are attached to the lower ends of the front and rear extendable legs 41 and the rear extendable legs 42. The pivot 12 that pivotally attaches the front leg 8 and the rear leg 9 is set so as to be positioned at the apex of an isosceles triangle with the base connecting the leg rubber 45 at the lower end of the front leg 8 and the rear leg 9. ing.

  Further, an engagement rod 37 is attached between the upper ends of the pair of front legs 8, and a pivot rod 39 is attached between the horizontal portions 30 of the pair of front legs 8. Further, a connecting rod 38 is attached between the upper ends of the pair of rear legs 9, and each rear leg 9 is integrated via the connecting rod 38. The engaging rod 37, the connecting rod 38, and the pivot support rod 39 have a function of reinforcing the leg portion 1.

As shown in FIG. 2, the seat 2 is formed by attaching a seat cushion 48 made of a soft foam resin to the upper surface of a hard synthetic resin seat body 47, and is located near the rear portion of the lower surface of the seat body 47. A pivot tube portion 49 is projected. The seat portion 2 is attached to the leg portion 1 by inserting the pivot support rod 39 into a hole 49a provided through the pivot support tube portion 49 in the left and right direction. The seat 2 is pivoted up and down with the pivot 39 as a pivot center, and a ridge 40 provided across the width direction on the lower surface of the seat 2 is placed on the engagement rod 37. It is rotated between a horizontal position where it is placed and a position where the front end of the seat 2 rises upward. Further, on one side of the rear end portion of the seat portion 2, one end portion of the connecting tool 10 is pivotally attached by a shaft pin 50 so as to be rotatable in the vertical direction. It is connected to the connecting rod 38 so as to be rotatable in the vertical direction. As described above, the rear end portion of the seat portion 2 is connected to the rear leg 9 of the leg portion 1 by the connecting tool 10.

  As shown in FIG. 2, the backrest 3 is formed by attaching a back cushion 53 made of a soft foam resin to the front surface side of a back body 52 made of hard synthetic resin. Then, the backrest 3 is arranged on the front side of the backrest support 31 of the upper portion of the leg 1, the mounting tool 54 is screwed to the backrest main body 52, and the backrest is placed between the backrest main body 52 and the mounting tool 54. The backrest 3 is attached to the upper end of the backrest column 11 by sandwiching the attachment 31. Reference numeral 84 denotes a gripping hole provided in the backrest portion 3 so that a hand can be inserted when carrying the chair.

  In the present invention, a locking device 4 is attached to the lower surface of the seat 2 as shown in FIGS. As shown in FIGS. 2 and 9A, the lock device 4 is formed to include a lock tool 57 and a casing 58 that covers the lock tool 57. The locking device 57 is formed by providing a pivot shaft 59 on both sides of the upper end of the front portion, a wire connecting portion 60 on the lower end of the rear portion, and an engaging recess 61 on the lower surface at a position between the pivot shaft 59 and the wire connecting portion 60. As shown in FIG. 9A, the pivot shaft 59 is pivotally attached to the shaft hole of the pivot support portion 62 projecting from the lower surface of the seat portion 2, so that the pivot shaft 59 can be rotated in the vertical direction. It is attached. The casing 58 is formed in a box shape having an upper surface and a front surface that are open. With the engagement recess 61 of the lock device 57 exposed from the front surface opening of the casing 58, the lock device 57 is covered from below and the seat portion 2 is covered. It is attached to the lower surface of the bolt with bolts. A spring 63 is attached to the upper surface of the locking device 57 and is urged by the spring 63 in a direction to rotate the locking device 57 downward, and the lower surface of the locking device 57 abuts against the upper surface of the casing 58. Thus, the locking device 57 is prevented from rotating downward.

In the present invention, a release operation tool 5 is attached to the back of the backrest 3 as shown in FIGS. As shown in FIGS. 2 and 9B, the release operating tool 5 has a lever piece 66 extending from a pivotal support portion 65 provided with a shaft hole 64 and a stopper piece 67 protruding downward from the base portion of the lever piece 66. The lever piece 66 is formed with a through hole 14 that opens up and down. The release operation tool 5 is attached to the back surface of the backrest portion 3 through the attachment tool 54 by inserting the pin 68 attached to the attachment tool 54 into the shaft hole 64. The release operation tool 5 is rotatable up and down between the state shown in FIG. 2 where the stopper piece 67 contacts the outer surface of the fixture 54 and the state where the lever piece 66 is lifted obliquely upward.

A release wire 6 is attached between the locking device 57 of the locking device 4 and the release operation device 5. The release wire 6 is formed by inserting a wire 71 into a flexible tube 70. That is, at one end of the release wire 6, the wire 71 protruding from the tube 70 is connected and fixed to the wire connecting portion 60 of the lock tool 57 as shown in FIG. The release wire 6 is led out from the casing 58 through the release lead-out opening 72 at the rear end of the casing 58, and the middle part of the release wire 6 is fixed to the lower surface of the seat portion 2 as shown in FIGS. The release wire 6 is inserted into the pipe of the front leg 8. The release wire 6 is passed through the pipe of the backrest column 11, the other end of the release wire 6 is led out, and the wire 71 protruding from the tube 70 is connected and fixed to the release operation tool 5 as shown in FIG. is there.

  A spring 7 is attached between the front leg 8 and the rear leg 9 of the leg 1 as shown in FIG. The spring 7 is formed as a torsion coil spring composed of locking wire portions 7a and 7b at both ends and a coil portion 7c therebetween, and the coil portion 7c is a shaft for pivotally connecting the front leg 8 and the rear leg 9 to each other. While being fitted to the outer periphery of the pivotal support portion 12 made of a pin, one locking wire portion 7a is wound around the rear spring receiving portion 73 projecting from the rear hinge 34 of the rear leg 9 and locked, and the other locking wire portion 7b is hooked and locked to a front spring receiving portion 74 provided to protrude from the front hinge 33 of the front leg. Accordingly, the elastic force of the spring 7 is rotated in the direction of bringing the front leg 8 and the rear leg 9 close to the front leg 8 and the rear leg 9 through the hinges 33 and 34 around the pivot 12 in the center. It acts as a force.

  Furthermore, armrests 76 are attached to the backrest columns 11 on both sides of the backrest 3. The armrest 76 is pivotally supported at its base portion by a shaft pin 77 so that it can be turned up and down between a horizontal state and a state in which it is flipped upward. This armrest 76 is not always necessary.

In the bathroom chair according to the present invention formed as described above, it is used by sitting on the seat portion 2 in a state where the leg portion 1 is opened and the seat portion 2 is horizontally rotated. is there. In this way, when the seat portion 2 is in a horizontal state, the ridge portion 40 provided on the lower surface of the seat portion 2 is placed on the engagement rod 37 provided between the front legs 8. A recess 79 is provided in the width direction of the seat 2, and an engagement rod 37 is fitted into the recess 79 so that the seat 2 is positioned with respect to the leg 1. . Then, when the seat portion 2 is pivoted downward to the horizontal state in this way, first, the locking tool 57 of the locking device 4 gets on the engagement rod 37 as shown in FIG. A guide inclined surface 80 is formed on the lower surface of the lock device 57. When the seat 2 is further rotated downward and the guide inclined surface 80 is pressed against the engagement rod 37, the lock device 57 is The lock tool 57 is rotated downwardly as indicated by the arrow b by the elastic force of the spring 63, and is rotated downwardly as indicated by the arrow b. As shown in FIG. 11 (b), the engaging recess 61 of the locking device 57 is engaged with the engaging rod 37.

  In this way, the engaging recess 61 of the locking device 57 provided on the locking device 4 is engaged with the engaging rod 37 provided on the leg 1, whereby the seat 2 is engaged with the leg 1. The seat portion 2 can be fixed in a horizontal state. Therefore, it is possible to prevent an accident such as the seat 2 being inadvertently rotated upward and falling.

  Next, when the bathroom chair is folded, first, the engagement of the lock tool 57 of the lock device 4 with respect to the engagement rod 37 is released. This disengagement can be performed by operating a release operation tool 5 provided on the backrest 3. That is, when the lever piece 66 of the release operation tool 5 is rotated upward about the pin 68 as indicated by the arrow α in FIG. 9B, one end of the wire 71 of the release wire 6 connected to the release operation tool 5. Is pulled. When the wire 71 of the release wire 6 is pulled in this way, the locking device 57 is pulled at the other end of the wire 71 as shown by an arrow e in FIG. 11C, and as shown in FIG. 57 is rotated upward against the spring 63 as indicated by an arrow c, and the engagement of the engagement recess 61 with the engagement rod 37 is released.

Thus, when releasing the engagement of the lock device 4 with respect to the engagement rod 37 and releasing the engagement and fixation of the seat portion 2 with respect to the leg portion 1, the release operation tool provided on the backrest portion 3 as described above. This can be done by operating 5. Since the release operation tool 5 is thus located at the highest position of the chair, that is, the backrest portion 3, it is possible to operate the release operation tool 5 in an easy standing posture without having to bend down. Yes, the operation of releasing the engagement of the lock device 4 can be easily performed. In addition, since the operation can be performed by pulling up the lever piece 66 of the release operation tool 5 and rotating it upward, the release operation tool can be operated by lowering the arm while standing and holding the lever piece 66 on the finger. The operation of rotating 5 can be easily performed.

  Here, as a result of providing the release operation tool 5 on the backrest portion 3 so that the operation of the release operation tool 5 can be easily performed, the space between the lock device 4 on the lower surface of the seat portion 2 and the release operation tool 5 is reduced. Although the distance increases, since the release wire 6 is provided between the lock device 4 and the release operation tool 5, the lock device 4 can be remotely operated by the release operation tool 5 with a simple mechanism called the release wire 6. Is.

  In addition, the central portion of the upper end of the backrest portion 3 is provided with a protruding portion 13 having a flat upper surface protruding rearward, and the release operation tool 5 is positioned immediately below the protruding portion 13 as shown in FIG. It is arranged in. Further, the release operation tool 5 is arranged at a position close to the overhang part 13 so that the overhang part 13 and the release operation tool 5 can be grasped simultaneously with one hand. For example, it is preferable to set the distance between the upper surface of the overhanging portion 13 and the lower surface of the lever piece 66 of the release operation tool 5 to be about 6 to 9 cm. Therefore, for example, with the thumb of one hand placed on the overhanging portion 13, the index finger or the middle finger of the same one hand is hooked on the lower side of the lever piece 66 of the release operation tool 5 and the one hand is held. Thus, the operation of pulling up the release operation tool 5 can be performed, and the engagement of the lock device 4 can be released with a strong force and an operation with only one hand.

  Here, since the lever piece 66 is formed with the through-hole 14 that opens up and down as described above, by inserting a fingertip such as an index finger or a middle finger into the through-hole 14 from below, the release operation tool 5 is provided. The operation of pulling up the lever piece 66 becomes easier. Further, by adjusting the length of the finger inserted into the through hole 14, the overhanging portion 13 and the release operation tool 5 can be easily grasped with one hand regardless of the size of the palm.

To release the engagement of the locking device 4 by operating the release operation member 5 as described above, when disengaged fixed state of the seat 2 with respect to the leg 1, pivot the front legs 8 and the rear leg 9 closing direction Since the spring 7 to be urged is provided on the leg portion 1 as described above, the front leg 8 and the rear leg 9 are automatically rotated in the closing direction around the pivot portion 12 by the force of the spring 7. Then, when the front leg 8 and the rear leg 9 are rotated in the closing direction, that is, when the rear leg 9 is rotated in the direction approaching the front leg 8 (a arrow in FIG. 4A), the rear leg 9 is moved. The rear end of the seat 2 connected by the connector 10 is pulled downward and pivots downward (arrow b in FIG. 4A), and upward so that the front end of the seat 2 rises. As shown in FIG. 10, the leg portion 1 can be folded and the seat portion 2 can be raised and folded, so that the bathroom chair can be folded.

  Here, the operation of the release operation tool 5 for releasing the engagement of the lock device 4 as described above can be performed with one hand, and when the engagement of the lock device 4 is released, the leg portion is operated by the action of the spring 7. Since the folding of 1 and the folding of the seat 2 are automatically performed, the bathroom chair can be folded with only one hand.

  When folding the bathroom chair in this manner, as described above, the pivotal support portion 12 that pivotally attaches the front leg 8 and the rear leg 9 is an apex of an isosceles triangle with the lower ends of the front leg 8 and the rear leg 9 as the bottom. 10 so that the front leg 8 and the rear leg 9 can be folded and narrowed as shown in FIG. 10 without having to lean against the wall. It can be stored.

Next, when opening the bathroom chair for use in this manner, as shown in FIG. 12, the leg rubber 45 at the lower end of the rear leg 9 is in contact with the floor surface 82 such as a bathroom washroom. In this state, the lower end of the front leg 8 is lifted from the floor 82, and the protruding portion 13 at the upper end of the backrest 3 is pressed downward. That is, when the upper surface of the overhanging portion 13 is pressed downward as indicated by an arrow a, the backrest column 11 is rotated downward about the pivotal support portion 12 and the front leg 8 is rotated upward as indicated by an arrow b. , front legs 8 are rotated in a direction away from the rear leg 9, the leg portion 1 is opened. And since the seat part 2 is connected with the rear leg 9 via the connection tool 10, when the front leg 8 and the rear leg 9 are rotated so as to open in this way, the seat part 2 moves in the direction of the arrow c in conjunction with this. The bathroom chair can be opened in a use state by rotating so as to fall horizontally and opening the leg portion 1 and the seat portion 2.

  At this time, the overhanging portion 13 of the backrest portion 3 is grasped with one hand so that the lower end of the rear leg 9 is grounded to the floor surface 82 and the lower end of the front leg 8 is floated from the floor surface 82 as shown in FIG. By pressing the overhanging portion 13 downward, the bathroom chair can be opened as described above, and the operation of opening the bathroom chair can be easily performed with only one hand.

DESCRIPTION OF SYMBOLS 1 Leg part 2 Seat part 3 Back part 4 Locking device 5 Release operation tool 6 Release wire 7 Spring 8 Front leg 9 Rear leg 10 Connecting tool 11 Backrest column 12 Pivoting part 13 Overhang part 14 Through-hole

Claims (7)

A bathroom chair formed with a leg portion, a seat portion, and a backrest portion, and attached to the leg portion so that the seat portion can be rotated between a horizontal state and a state in which the seat portion is folded upward. And a locking device for holding the horizontally rotated seat portion in the leg portion and holding it in a horizontal state, and a release operation tool for performing an operation of releasing the engagement by the locking device is provided in the backrest portion, The release operation tool has a lever piece for catching a hand, and the lever piece is provided with a through hole that opens up and down and into which a finger is inserted, and the lock device is obtained by grasping the backrest part and the release operation tool with one hand. The bathroom chair is characterized in that the engagement by is released.   The bathroom according to claim 1, further comprising a release wire for remotely transmitting the operation of the release operation tool to the lock device between the lock device provided on the seat and the release operation tool provided on the backrest. Chair.   The bathroom chair according to claim 1, further comprising a spring that urges the seat in a direction to rotate the seat upward.   The leg part is formed so that the front leg and the rear leg can be pivotally connected to each other so that the leg can be folded open and closed. 4. A coupling device that interlocks the rotation in the direction in which the rear leg is opened and the downward rotation of the seat portion is provided between the leg portion and the seat portion. The bathroom chair according to any one of the above.   The upper part of the pivot is connected to the rear leg of the front leg so that it can rotate. The bathroom chair according to claim 4, wherein the bathroom chair is formed. The release operation tool is formed so as to be disengaged by rotating upward, and the release operation tool is disposed on the back of the backrest portion at a position where the overhanging portion and the release operation tool can be simultaneously grasped with one hand. The bathroom chair according to claim 5 . The bathroom chair according to claim 5 or 6, characterized in that the bathroom chair can be opened by pressing the projecting portion downward and can be folded by operating the release operation tool.

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