JP5043986B2 - Folding chair and shower chair - Google Patents

Description

  The present invention relates to a folding chair and a shower chair, and more particularly, to a folding chair and a shower chair used by care recipients and elderly people when taking a bath.

  Conventionally, various chairs on which a cared person, an elderly person and the like sit down during bathing have been proposed (see, for example, Patent Document 1). This Patent Document 1 discloses a folding chair for a bathroom in which the seat is supported in a horizontal state when the front legs and the rear legs are opened, while the seat is stored in a substantially vertical state when the front legs and the rear legs are closed. ing.

JP 2007-37608 A

  In the folding chair for bathroom of the said patent document 1, a seat surface rotates by holding | griping and lifting the front-end part of a seat surface, and a chair will be folded in a substantially perpendicular state. That is, when folding the folding chair for bathrooms disclosed in Patent Document 1, the operator must bend his waist and operate the seat. In particular, in a narrow space such as a bathroom, it is a very heavy burden for an operator who bends his back to support a cared person and an elderly person with one hand while folding a chair with the other hand.

  Then, the objective of this invention is providing the folding chair and shower chair which can reduce the burden on an operator.

  The folding chair according to the first aspect includes a leg portion, a back surface portion having a backrest portion, and a seat portion that rotates by lifting the backrest portion.

In this case, by lifting the backrest part, the seat part rotates and the chair is folded. That is, the operation position at the time of folding becomes the height of the backrest portion, and the operator can fold the chair in an upright posture. As a result, the burden on the operator's waist is reduced.
In addition, the chair can be folded by a simple operation of lifting the backrest with one hand. As a result, the folding chair can be stored with the other hand while supporting the care recipient and the elderly with one hand, so that the burden on the worker can be reduced. In particular, in the present invention, since it is possible to support a cared person and an elderly person in an upright posture and to fold a chair, compared to the case where both work is performed with the waist bent, the burden imposed on the worker is increased. It is greatly reduced.
Moreover, since the work of lifting the backrest can be performed even from the front of the chair, the work in a narrow work space such as a bathroom becomes easy.

  In the folding chair, the back surface portion is slidably connected to the leg portion, and the seat portion is pivotally supported on each of the leg portion and the back surface portion. When the backrest is lifted, as the back surface slides upward, the rear of the seat rises and the front of the seat rotates downward and rearward.

  In this case, the back part slides and moves by simply lifting the backrest part, the seat part rotates and the chair is folded. That is, the seat is rotated and the chair is folded by a simple operation of lifting the backrest with one hand.

  In the folding chair, the connecting portion between the leg portion and the back surface portion is a double cylinder.

In this case, the sliding movement of the back surface portion with respect to the leg portion can be realized with a simple configuration of a double cylinder.
In addition, by adopting a structure in which one of the legs and the back part enters the other, the structure of the slide can be suppressed as a structure that realizes the sliding movement, and the chair structure can be suppressed. Compactness can be achieved.

  In the folding chair, the leg portion includes a front leg and a rear leg that are arranged so as to cross in an X shape in a side view, and the front leg and the rear leg are rotatably connected at the crossed portion, and the back portion is The seat is slidable relative to the front leg, and the seat is pivotally supported by the rear leg.

  In this case, the back part slides and moves only by lifting the backrest part, the seat part rotates, the front leg and the rear leg rotate, and the chair is folded. That is, the chair including the seat and the leg can be folded by a simple operation of lifting the backrest with one hand. As a result, the folding chair can be stored more compactly when not in use.

  The folding chair further includes a lock mechanism that restricts movement of the backrest portion with respect to the leg portion, and the lock release portion of the lock mechanism is provided on the backrest portion.

In this case, simply by grasping and lifting the backrest part, the unlocking of the sliding movement of the back surface part and the sliding movement of the back surface part can be performed simultaneously.
Further, by providing the lock release portion on the backrest portion, the operation position at the time of unlocking the slide movement becomes the height of the backrest portion, and the burden on the operator's waist can be reduced.

  In the folding chair, a handle opening is provided in a portion different from the portion where the unlocking portion of the backrest portion is provided.

  In this case, since the opening for the handle and the unlocking portion are provided apart from each other, it is possible to prevent the folding release chair from being folded when the chair is carried and the folding chair is erroneously operated and the folding chair is not intended by the operator. .

  The folding chair further includes an armrest portion that is folded in conjunction with the movement of the backrest portion.

  In this case, since the armrest is folded in conjunction with the sliding movement of the back surface, the chair can be folded including not only the seat and the leg but also the armrest by a simple operation of pulling up the back surface with one hand. . As a result, the folding chair can be stored more compactly when not in use.

  In the folding chair, one end of the armrest portion is detachable from the seat portion.

  In this case, it is possible to remove the armrest portion that hinders the lateral movement from the seat portion from the seat portion. Thereby, a cared person, an elderly person, etc. can move to a horizontal direction with the state sitting on the seat.

  The shower chair according to the second aspect is a folding chair according to any one of the above items used in a bathroom.

In this case, by lifting the backrest part, the seat part rotates and the shower chair is folded. That is, the operation position at the time of folding becomes the height of the backrest portion, and the operator can fold the chair in an upright posture. As a result, the burden on the operator's waist is reduced.
Moreover, the shower chair can be folded by a simple operation of lifting the backrest with one hand. As a result, since the shower chair can be stored with the other hand while caring for the cared person and the elderly with one hand, the burden on the operator can be reduced. In particular, in the present invention, the burden on the operator can be compared with the case where both work is performed with the waist bent because the caregiver and the elderly can be supported and the shower chair can be folded in an upright posture. Is greatly reduced.
In addition, the work of lifting the backrest can be performed from the front of the shower chair, so that the work in a narrow work space such as a bathroom becomes easy.

  By using the folding chair and shower chair according to the present invention, the burden on the operator can be reduced.

It is a perspective view of the folding chair which concerns on one Embodiment of this invention. It is a side view of the folding chair shown in FIG. It is a front view of the folding chair shown in FIG. It is a rear view of the folding chair shown in FIG. It is sectional drawing which showed the internal structure of the connection part of a back part and a leg part. It is a schematic diagram for demonstrating the fixing structure of an armrest part. It is a figure for demonstrating folding operation | movement of the folding chair shown in FIG. It is a figure for demonstrating the accommodation method of the armrest part of the folding chair shown in FIG. It is a figure for demonstrating the accommodation method of the armrest part of the folding chair shown in FIG.

(Overall configuration of folding chair)
A folding chair (hereinafter abbreviated as “chair” as appropriate) 100 according to the present embodiment is a shower chair that is used in a bathroom by a cared person and an elderly person (hereinafter referred to as a cared person). This is a folding chair that can be folded substantially planar when not in use. As shown in FIG. 1, the folding chair 100 of this embodiment includes a leg part 200, a back part 300 having a backrest part 310, a seat part 400, an armrest part 500, and a lock mechanism 600. Hereinafter, details of the folding chair 100 will be described.

(leg)
As shown in FIG.1 and FIG.2, the leg part 200 supports the chair 100 in the front (arrow Y1 direction) of the chair 100, and the front leg 210 which supports the chair 100 in the back (arrow Y2 direction). And a rear leg 220. As shown in FIG. 2, in a side view, the front leg 210 and the rear leg 220 are arranged so as to intersect in an X shape, and the front leg 210 and the rear leg 220 are rotatably connected at the intersecting portion. ing.

(Front leg)
As shown in FIGS. 1 and 2, the front leg 210 includes a pair of left and right front leg frames 211, a leg rubber 212 attached to each lower end of the front leg frame 211, and a connecting portion provided between the pair of front leg frames 211. 213. As shown in FIG. 2, the front leg frame 211 is a metal pipe bent in a substantially S shape (for example, a stainless steel pipe excellent in water resistance, corrosion resistance, and mold resistance), and has an installation surface. A horizontal pipe portion 214 extending substantially parallel to S, a front pipe portion 215 extending downward (installation surface S) from the front end of the horizontal pipe portion 214, and an upper portion (installation surface S) from the rear end of the horizontal pipe portion 214. A rear pipe portion 216 extending in a direction away from the rear pipe portion 216. A leg rubber 212 provided at the lower end of the front pipe portion 215 is attached to prevent the chair 100 from sliding with water in the bathroom. As shown in FIG. 3, the connecting portion 213 is joined by welding so as to be orthogonal to each of the front leg frames 211 in a front view.

(Back leg)
As shown in FIGS. 1 and 2, the rear leg 220 is provided across the pair of left and right rear leg frames 221, leg rubbers 222 attached to the lower ends of the rear leg frames 221, and the pair of rear leg frames 221. Connected portion 223. The pair of rear leg frames 221 are respectively arranged outside the pair of front leg frames 211 described above. As shown in FIG. 2, the rear leg frame 221 is a metal pipe bent in a substantially S shape (for example, a stainless steel pipe excellent in water resistance, corrosion resistance, and mold resistance). The horizontal pipe part 224 extending substantially parallel to the installation surface S, the rear pipe part 225 extending downward (installation surface S) from the rear end of the horizontal pipe part 224, and the upper side from the front end of the horizontal pipe part 224 ( And a front pipe portion 226 extending in a direction away from the installation surface S). The front leg frame 211 and the rear leg frame 221 are connected to each other at the horizontal pipe portions 214 and 224 so as to be rotatable. The leg rubber 222 provided at the lower end of the rear pipe portion 225 is attached to prevent the chair 100 from sliding with water in the bathroom, like the leg rubber 212 described above. As shown in FIG. 4, the connecting portion 223 is joined by welding so as to be orthogonal to each of the rear leg frames 221 in a rear view.

  As shown in FIG. 3, the rear leg 220 of the present embodiment includes a rotation shaft 227 provided on the upper part (front pipe portion 226) of the pair of rear leg frames 221. The rotation shaft 227 is attached so as to be orthogonal to each of the rear leg frames 221 in a front view. The rotating shaft 227 is rotatably supported by a bearing portion 420 of a seat portion 400 described later.

(Back)
As shown in FIGS. 1 to 3, the back surface portion 300 includes a backrest portion 310 that supports the back of the user sitting on the chair 100 and a back frame 320 to which the backrest portion 310 is attached. The back surface portion 300 is slidably connected to the front leg 210 described above, and when the chair 100 is folded, the back portion 300 is lifted above the front leg 210 (the installation surface S) by lifting the backrest portion 310. Slide in the direction away from As shown in FIG. 4, a rubber material having excellent cushioning properties is provided on the surface of the backrest portion 310. This rubber material is preferably a material excellent in water resistance, corrosion resistance, and mold resistance. Further, the back frame 320 is a metal pipe bent in a substantially inverted U shape when viewed from the back, and is an upper part connecting the pair of left and right side pipe parts 321 and the upper ends of the pair of side pipe parts 321. A pipe portion 322. As shown in FIG. 5, the inner diameter R <b> 1 of the side pipe portion 321 is designed to be larger than the outer diameter R <b> 2 of the rear pipe portion 216 of the front leg frame 211 described above, and the rear pipe 216 is placed inside the side pipe portion 321. It is possible to enter. That is, in this embodiment, the connection part of the front leg 210 and the back surface part 300 has a double cylinder structure. As a result, the side pipe portion 321 moves along the rear pipe portion 216 that has entered the inside (in the direction of the arrow L1), so that the back surface portion 300 can be slid relative to the front leg 210. Here, an example in which the rear pipe portion 216 enters the inside of the side pipe portion 321 has been described, but naturally, a structure in which the side pipe portion 321 enters the inside of the rear pipe portion 216 may be used.

  As shown in FIG. 4, a lock mechanism 600 described later is provided below the backrest portion 310. Details of the lock mechanism 600 will be described later. In addition, a handle opening 311 is formed in a portion inside the outer edge of the backrest 310. The opening 311 for the handle is an opening for an operator to hold when the chair 100 is carried.

  Further, as shown in FIG. 4, the back surface portion 300 includes a rotating shaft 330 provided at a lower portion of the back frame 320. The rotary shaft 330 is joined by welding so as to be orthogonal to each of the pair of side pipe portions 321 in the rear view. The rotation shaft 330 is rotatably supported by a bearing portion 430 of a seat portion 400 described later.

(Seat)
As shown in FIG. 2, the seat 400 includes a main body 410 on which a user sits, and bearings 420 and 430 provided on the back surface of the main body 410. A rubber material having excellent cushioning properties is provided on the surface of the main body 410. This rubber material is preferably a material excellent in water resistance, corrosion resistance, and mold resistance. Further, the bearing portion 420 is provided to rotatably support the rotating shaft 227 of the rear leg 220. Moreover, the bearing part 430 is provided in order to pivotally support the rotating shaft 330 of the back surface part 300 so that rotation is possible. This bearing portion 420 is provided on the front side (arrow Y1 direction side) from the center of the main body portion 410 in the front-rear direction (arrow Y1 direction and arrow Y2 direction). It is provided on the rear side (arrow Y2 direction side) from the center in the Y1 direction and the arrow Y2 direction.

  As shown in FIGS. 1 and 2, the seat 400 according to the present embodiment includes arm fixing portions 440R and 440L for fixing an armrest portion 500 (right arm 500R and left arm 500L) described later. Yes. Each of the arm fixing portions 440R and 440L is rotatably attached to the outside of the bearing portion 420 described above.

(Armrest)
The armrest portion 500 includes a right arm 500R that supports the right elbow of the user sitting on the chair 100 and a left arm 500L that supports the left elbow of the user. Since the right arm 500R and the left arm 500L have the same configuration, the right arm 500R will be described here, and the description of the left arm 500L will be omitted as appropriate. It should be noted that the part corresponding to the right arm 500R of the left arm 500L is denoted by “L” instead of “R”.

  As shown in FIG. 2, the light arm 500R has a plastic arm portion 510R and a metal pipe arm portion 520R, and the arm portion 510R and the arm portion 520R are connected to each other so as to be rotatable. Yes. The arm portion 510R is arranged along the front-rear direction of the chair 100 (arrow Y1 direction and arrow Y2 direction), and the arm portion 520R is along the height direction of the chair 100 (arrow Z1 direction and arrow Z2 direction). Be placed. One end of the arm portion 510R is rotatably supported by the back frame 320 of the back surface portion 300, and the other end of the arm portion 510R is rotatably supported by one end of the arm portion 520R. Also, one end of the arm portion 520R is rotatably supported by the other end of the arm portion 510R, and the other end of the arm portion 520R is fixed to the arm fixing portion 440R. In the present embodiment, the other end of the arm portion 520R is configured to be detachable from the arm fixing portion 440R.

(Fixing structure between armrest and seat)
Here, with reference to FIG. 6, the fixing structure of the armrest portion 500 (the other end of the arm portion 520R) and the seat portion 400 (the arm fixing portion 440R) will be described in detail. As shown in FIG. 6, the arm fixing portion 440R is rotatably attached to the bearing portion 420 of the seat portion 400, and includes a main body portion 441R, a protruding portion 442R protruding upward from the main body portion 441R, And a fitting pin 443R that is biased toward the outside of the protrusion 442R by a biasing member such as a leaf spring. Also, a resin cap 530R is attached to the other end of the arm portion 520R. The cap 530R has a cylindrical shape into which the protruding portion 442R enters, and a fitting hole 531R into which the fitting pin 443R is fitted is formed on the side surface thereof. With the above configuration, the armrest portion 500 and the seat portion 400 are fixed by fitting the fitting pin 443R of the arm fixing portion 440R into the fitting hole 531R of the cap 530R. Note that the brackets in FIG. 6 indicate the correspondence between the right arm 500R and the left arm 500L.

(Lock mechanism)
Next, the lock mechanism 600 for restricting the sliding movement of the back surface portion 300 will be described. As shown in FIG. 4, the lock mechanism 600 includes a lock release button 610 that releases the restriction on the sliding movement of the back surface portion 300. The lock release button 610 is provided at the lower end of the center of the backrest 310 in the width direction, and is pushed down by grasping the backrest 310 from below to release the restriction of the slide movement.

(Folding operation of the folding chair 100)
Next, the folding operation of the folding chair 100 of the present embodiment will be described with reference to FIG. The folding chair 100 of this embodiment can be folded substantially planarly so that it can be accommodated compactly when not in use.

  As an operation performed by the operator, it is only necessary to grip the backrest 310 from below and lift it upward (in the direction of arrow Z1). By the above operation, the lock release button 610 (see FIG. 1) provided at the lower end portion of the backrest portion 310 is pushed down, and the restriction on the sliding movement of the back surface portion 300 relative to the front leg 210 is released. Thereby, as shown in FIG. 7, the back surface part 300 slides along the direction (arrow L1 direction) in which the rear pipe part 216 of the front leg 210 extends. At this time, the rotation shaft 330 of the back surface portion 300 slides to lift the bearing portion 430 that supports the rotation shaft 330. As a result, the rear of the seat 400 is lifted in the direction of the arrow L1, and the front of the seat 400 is rotated downward and rearward (in the direction of the arrow L2) about the rotation shaft 330. As a result, the back surface portion 300 and the seat portion 400 are arranged in a substantially planar manner.

  Focusing on the armrest portion 500 (light arm 500R) while the slide movement of the back portion 300 and the rotation of the seat portion 400 are performed, one end of the arm portion 510R of the armrest portion 500 is attached to the back frame 320. Therefore, as the rear part 300 slides, it moves in the arrow L1 direction. On the other hand, since the other end of the arm portion 520R is fixed to the arm fixing portion 440R, the arm portion 520R moves in the arrow L2 direction as the seat portion 400 rotates. Thus, the armrest portion 500 having the arm portions 510R and 520R that are connected substantially vertically in a side view is folded substantially linearly in conjunction with the sliding movement of the back surface portion 300. Although the right arm 500R has been described here, the left arm 500L is naturally folded substantially linearly in conjunction with the sliding movement of the back surface portion 300.

  Further, when the above-described slide movement of the back surface portion 300 and the rotation of the seat portion 400 are performed, when attention is paid to the leg portion 200, the rear leg 220 is accompanied by the rotation of the seat portion 400 in the lower rear direction (arrow L2 direction). The front pipe portion 226 rotates rearward and upward (in the direction of arrow L3), and the rear pipe portion 225 of the rear leg 220 rotates downward and forward (in the direction of arrow L4). As a result, the front leg 210 and the rear leg 220 arranged in a substantially X shape are rotated and folded so as to approach each other.

  As described above, by simply grasping the backrest 310 from below and lifting it upward (in the direction of arrow Z1), the seat 400 rotates in conjunction with the sliding movement of the back surface 300, and the front leg 210 and As the rear legs 220 rotate so as to approach each other, and the armrest portion 500 extends substantially linearly, the folding chair 100 is folded substantially planarly.

(How to store the armrest 500)
Next, with reference to FIG. 6, FIG. 8 and FIG. 9, a method for storing the armrest portion 500 of the folding chair 100 of the present embodiment will be described. The armrest portion 500 functions as an armrest for a cared person or the like sitting on the seat 400, but when the cared person or the like is moved to a bathtub, the cared person or the like is moved laterally from the folding chair 100 (in the direction of the arrow X1). In the case of moving in the direction of arrow X2), the armrest portion 500 hinders movement in the lateral direction. Therefore, in the present embodiment, the armrest portion 500 is configured to be retractable, and the folded armrest portion 500 is retracted from the side of the cared person or the like, so that the cared person or the like can move in the lateral direction. I have to.

  Here, the storage method of the right arm 500R will be described, and the description of the left arm 500L will be omitted. As shown in FIG. 8 (a), from the state where the other end of the armrest portion 500 is fixed to the seat portion 400, the operator first holds the other end of the arm portion 520R as shown in FIG. 8 (b). Remove from the arm fixing portion 440R. Specifically, as shown in FIG. 6A, from the state where the cap 530R attached to the other end of the arm portion 520R is fixed to the arm fixing portion 440R, as shown in FIG. The person pushes down the fitting pin 443R of the arm fixing portion 440R to release the fixation between the cap 530R and the arm fixing portion 440R.

  Next, as shown in FIG. 8C, the arm portion 520R is rotated in the arrow D1 direction so as to approach the arm portion 510R. Accordingly, as shown in FIG. 9D, the arm portion 510R and the arm portion 520R are folded so as to overlap each other. Then, as shown in FIG. 9E, the folded arm portion 510R and arm portion 520R are rotated toward the back frame 320 (in the direction of arrow D2). As a result, the armrest portion 500 that obstructs the lateral movement of the cared person sitting on the seat 400 is retracted to a position that does not interfere with the movement.

(Effect in this embodiment)
In the present embodiment, as described above, the chair 100 is folded only by lifting the backrest portion 310. That is, the operation position when folded is the height of the backrest 310. This eliminates the need for the operator to bend and fold the seat as in the conventional case, so that the chair 100 can be folded in an upright position, thereby reducing the burden on the operator's waist. The

  In the present embodiment, the chair 100 can be folded by a simple operation of lifting the backrest 310 with one hand. As a result, since the folding chair 100 can be stored with the other hand while caring for the care recipient with one hand, the burden on the worker can be reduced. In particular, in this embodiment, since the care recipient and the like can be folded and the chair 100 can be folded in an upright posture, the burden on the worker is significantly greater than when both operations are performed with the waist bent. To be reduced.

  Further, in the present embodiment, the work of lifting the backrest part 310 can be performed even from the front of the chair 100, so that the work in a limited work space such as a bathroom becomes easy.

  Further, in the present embodiment, a simple structure of a double cylinder is obtained by using a double cylinder (a structure in which the rear pipe 216 enters the inside of the side pipe part 321) as a connecting portion between the leg part 200 and the back surface part 300. Thus, the sliding movement of the back surface portion 300 with respect to the leg portion 200 can be realized.

  Further, in the present embodiment, by adopting a structure in which one of the legs 200 and the back surface 300 is inserted into the other, the structure of the chair 100 can be prevented from becoming complicated, and the chair 100 Compactness can be achieved.

  Further, in the present embodiment, the front leg 210 and the rear leg 220 are arranged so as to intersect in an X shape in a side view, and the front leg 210 and the rear leg 220 are rotatably connected at the intersecting portion. By simply lifting the backrest part 310, the back part 300 slides, the seat part 400 rotates, the front leg 210 and the rear leg 220 rotate, and the chair 100 is folded. That is, the chair 100 including the seat 400 and the leg 200 can be folded by a simple operation of lifting the backrest 310 with one hand. As a result, the chair 100 can be stored more compactly when not in use.

  Further, in the present embodiment, by providing the lock release button 610 of the lock mechanism 600 on the backrest part 310, simply by grasping and lifting the backrest part 310, the unlocking of the slide movement of the back part 300 and the back part 300 of the back part 300 can be performed. Slide movement can be performed simultaneously.

  In this embodiment, by providing the lock release button 610 on the backrest 310, the operation position when unlocking the slide movement becomes the height of the backrest 310, and the burden on the operator's waist can be reduced. it can.

  In the present embodiment, since the opening 311 for the handle and the unlock button 610 are provided apart from each other, the lock release button 610 is erroneously operated when the chair 100 is carried, and the folding chair 100 is not intended by the operator. It can be prevented from being folded.

  Moreover, in this embodiment, since the armrest part 500 is folded in conjunction with the sliding movement of the back surface part 300, the armrest part is not only the seat part 400 and the leg part 200 but also the armrest part by a simple operation of pulling up the back surface part 300 with one hand. The chair 100 including 500 can be folded. As a result, the folding chair can be folded substantially planar when not in use, and can be stored more compactly.

  In the present embodiment, the arm portions 510R and 520R of the light arm 500R are rotatably connected to each other, the arm portion 510R is rotatably supported on the back surface portion 300, and the arm portion 520R is attached to and detached from the seat portion 400. By being able to be configured, the armrest portion 500 that hinders lateral movement from the seat portion 400 can be stored in a compact manner. As a result, the cared person or the like can move in the horizontal direction while sitting on the seat 400. The same effect can be achieved with the left arm 500L.

(Correspondence between each component of claims and each part of the embodiment)
In the above embodiment, the folding chair 100 corresponds to a “folding chair” and a “shower chair”, the leg portion 200 corresponds to a “leg portion”, the front leg 210 corresponds to a “front leg”, and the rear leg 220 corresponds to “ The back portion 300 corresponds to the “back portion”, the back portion 310 corresponds to the “back portion”, the opening 311 for the handle corresponds to the “opening portion for the handle”, and the seat The portion 400 corresponds to a “seat portion”, the armrest portion 500 corresponds to an “armrest portion”, the lock mechanism 600 corresponds to a “lock mechanism”, and the lock release button 610 corresponds to a “lock release portion”.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is indicated not only by the above description of the embodiments but also by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

(Modification)
In the above-described embodiment, the example in which the connecting portion between the back surface portion 300 and the leg portion 200 has a double cylinder structure has been described. May be configured to be slidable relative to the leg part 200.

  Moreover, although the said embodiment demonstrated the example which comprises the back part 300 so that a slide movement was possible with respect to the front leg 210 of the leg part 200 arrange | positioned in X shape in side view, this invention is not limited to this, As long as the back surface portion 300 is slidable relative to the leg portion 200, the back surface portion 300 may be slidable relative to the rear leg 220.

  In the above embodiment, an example in which the lock release button 610 is provided at the lower end of the backrest 310 has been described. However, the present invention is not limited to this, and the lock release button 610 may be provided in the opening 311 for the handle. good.

DESCRIPTION OF SYMBOLS 100 Folding chair 200 Leg part 210 Front leg 220 Rear leg 300 Back surface part 310 Backrest part 311 Opening part for a handle 400 Seat part 500 Armrest part 600 Lock mechanism 610 Lock release button

Claims (4)

Legs,
A back portion having a backrest portion;
A seat that rotates by lifting the backrest ;
A lock mechanism that regulates movement of the backrest relative to the leg;
An opening for a handle provided in a portion inside the outer edge of the backrest,
A lock release portion of the lock mechanism provided at the lower end of the outer edge at the center in the width direction of the backrest portion,
The back portion is slidably connected to the leg portion, and
The seat portion is pivotally supported on each of the leg portion and the rear portion so as to be rotatable,
When unlocking is performed by the unlocking part and the backrest part is lifted, the back part slides upward due to the configuration of a double cylinder that is a connecting part with the leg part, A folding chair characterized in that the rear part of the seat part is lifted and the front part of the seat part is rotationally moved downward and rearward . The leg portion includes a front leg and a rear leg that are arranged so as to intersect in an X shape in a side view, and the front leg and the rear leg are rotatably connected at the intersecting portion,
The folding chair according to claim 1, wherein the back portion is slidable with respect to the front leg, and the seat portion is pivotally supported by the rear leg .   Further comprising an armrest that is folded in conjunction with the movement of the backrest,
  The folding chair according to claim 1 or 2, wherein one end of the armrest portion is detachable from the seat portion. The folding chair of any one of Claims 1-3 is used in a bathroom, The shower chair characterized by the above-mentioned.