JP2018023752A - Chair for nursing care - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair for nursing care which can easily transfer a care-receiver.SOLUTION: A chair 2 for nursing care includes: a body part 6; front wheels 28 and rear wheels 32; a left-side seat 8a and a right-side seat 8b each supported by the body part 6 so as to be independently movable; and a left-side footrest 10a and a right-side footrest 10b each supported by the body part 6 so as to independently move up and down. The left-side seat 8a is movable between a first support position where the hip part of a care-receiver 4 is supported and a first non-support position where the hip part of the care-receiver 4 is not supported, in a state where the left-side footrest 10a is located upper than the right-side footrest 10b. The right-side seat 8b is movable between a second support position where the hip part of the care-receiver 4 is supported and a second non-support position where the hip part of the care-receiver 4 is not supported, in a state where the right-side footrest 10b is located upper than the left-side footrest 10a.SELECTED DRAWING: Figure 10D

Description

  The present invention relates to a care chair for a care recipient to sit on.

  For example, there is known a chair for care for a person who needs care (hereinafter referred to as “care recipient”) such as a physically handicapped person, an elderly person, or an injured person (for example, see Patent Document 1). A conventional care chair includes a main body, a seat supported by the main body, and a plurality of wheels for moving the main body. In the state where the cared person is seated on the seat, the cared person can move from the bed to the toilet, for example, by walking while pushing the care chair forward.

JP 2014-91029 A

  However, in the above-described conventional care chair, when the care recipient is transferred from the bed to the care chair, for example, the caregiver needs to sit on the seat while holding the caregiver. There is a problem that the physical burden is large.

  This invention is made | formed in view of such a subject, and it aims at providing the care chair which can transfer a care receiver easily.

  In order to solve the above problems, a nursing chair according to one aspect of the present invention is a nursing chair for a care recipient to sit on, and a main body and wheels for moving the main body, The left and right seats are supported by the main body so as to be independently movable, and the left and right seats are arranged respectively on the left and right sides. A left footrest and a right footrest, wherein the left seat is in a state where the left footrest is located above the right footrest, and a first support position for supporting the care receiver's buttocks, It is movable between a first non-supporting position that does not support the buttocks of the cared person, and the right seat is in a state where the right footrest is positioned above the left footrest, A second support position for supporting the buttocks of a caregiver, the is movable between a second non-supporting position without supporting the buttocks of the care-receiver.

  According to the care chair according to one embodiment of the present invention, a cared person can be easily transferred.

1 is a perspective view showing an appearance of a care chair according to Embodiment 1. FIG. It is a perspective view which shows the use condition of the chair for care which concerns on Embodiment 1. FIG. It is a perspective view which expands and shows the left footrest which concerns on Embodiment 1, and a 1st raising / lowering mechanism. It is a perspective view which expands and shows the left footrest and the 1st raising / lowering mechanism which concern on Embodiment 1 from the angle different from FIG. FIG. 3 is an enlarged perspective view showing a part of a right armrest according to the first embodiment. FIG. 6 is a cross-sectional perspective view taken along line VI-VI in FIG. 5. FIG. 7 is a cross-sectional perspective view taken along line VII-VII in FIG. 5. FIG. 3 is an enlarged perspective view illustrating a left backrest portion according to the first embodiment. FIG. 9 is a cross-sectional perspective view taken along line IX-IX in FIG. 8. 3 is a perspective view for explaining an example of a method of using the care chair according to Embodiment 1. FIG. 3 is a perspective view for explaining an example of a method of using the care chair according to Embodiment 1. FIG. 3 is a perspective view for explaining an example of a method of using the care chair according to Embodiment 1. FIG. 3 is a perspective view for explaining an example of a method of using the care chair according to Embodiment 1. FIG. 3 is a perspective view for explaining an example of a method of using the care chair according to Embodiment 1. FIG. It is a perspective view for demonstrating the other example of the usage method of the care chair which concerns on Embodiment 1. FIG. 6 is a perspective view showing an appearance of a care chair according to Embodiment 2. FIG. It is a perspective view which expands and shows the left side seat part and right side seat part which concern on Embodiment 2. FIG. 10 is a plan view showing a care chair according to Embodiment 3. FIG. It is a figure which shows simply the structure of the chair for care which concerns on Embodiment 4. FIG. It is a figure which shows the usage example of the chair for care which concerns on Embodiment 4. FIG. It is a figure which shows simply the structure of the chair for care which concerns on Embodiment 5. FIG. It is a figure which shows simply the structure of the chair for care which concerns on Embodiment 6. FIG. It is a figure which shows simply the structure of the chair for care which concerns on Embodiment 6. FIG. FIG. 10 is a perspective view showing an appearance of a care chair according to Embodiment 7. It is a figure for demonstrating the function of the 1st elastic member of the chair for care which concerns on Embodiment 7. FIG. FIG. 20 is a diagram for describing a function of a first elastic member of a care chair according to an eighth embodiment. FIG. 20 is a perspective view showing the appearance of a care chair according to Embodiment 9.

  Embodiments of the present invention will be described below. Note that each of the embodiments described below shows a preferred specific example of the present invention. Therefore, numerical values, shapes, materials, components, arrangement positions and connection forms of the components, 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 mimetic diagram and is not necessarily illustrated strictly. In each figure, substantially the same configuration is denoted by the same reference numeral, and redundant description is omitted or simplified.

(Embodiment 1)
Hereinafter, the nursing chair according to Embodiment 1 will be described.

[1-1. Overall structure of nursing chair]
First, the overall configuration of the care chair 2 according to Embodiment 1 will be described with reference to FIG. FIG. 1 is a perspective view showing an appearance of a care chair 2 according to Embodiment 1. FIG.

  The care chair 2 according to Embodiment 1 is a mobile chair used by a cared person 4 (see FIG. 10A described later) in, for example, a hospital, a care facility, or a general household. A care recipient (not shown) walks while pushing the care chair 2 forward (or pulling forward), so that the cared person 4 can move while sitting on the care chair 2.

  As shown in FIG. 1, the care chair 2 includes a main body 6, a left seat 8a and a right seat 8b, a left footrest 10a and a right footrest 10b, a left armrest 12a and a right armrest 12b, and a left backrest. 14a and a right backrest part 14b. Hereinafter, each component of the care chair 2 will be described in detail.

  In the present specification, the “left side” means the left side (the positive side of the X axis) as viewed from the care receiver 4 sitting on the care chair 2. The “right side” means the right side (minus side of the X axis) when viewed from the care receiver 4 sitting on the care chair 2.

[1-2. Main unit]
Next, the main body 6 will be described with reference to FIG. The main body 6 is formed of a metal pipe or the like, for example, and functions as a frame of the care chair 2.

  As shown in FIG. 1, the main body 6 has a first frame 16, a second frame 18, a third frame 20, a fourth frame 22, and a fifth frame 24. Yes.

  The first frame 16 is formed in a substantially U shape and is disposed on the front side of the care chair 2. The first frame 16 includes a horizontal portion 16a extending substantially horizontally, a left vertical portion 16b extending substantially vertically upward (plus side of the Z axis) from the left end portion of the horizontal portion 16a, and a right side of the horizontal portion 16a. A right vertical portion 16c extending substantially vertically upward from the end portion. A pair of support plates 26 are fixed to both ends of the horizontal portion 16a. A pair of front wheels 28 (an example of wheels) for moving the care chair 2 are supported on the lower surfaces of the pair of support plates 26, respectively. Each of the pair of front wheels 28 is a free caster, for example.

  The second frame 18 is formed in a straight line shape, and extends substantially horizontally from the upper end of the right vertical portion 16c of the first frame 16 toward the rear of the care chair 2 (the positive side of the Y axis). Yes. As shown in FIG. 6 described later, one end of the second frame 18 is fixed to the upper end of the right vertical portion 16 c of the first frame 16 with a screw 30.

  The third frame 20 is formed in a straight line shape, and extends substantially horizontally from the upper end portion of the left vertical portion 16 b of the first frame 16 toward the rear of the care chair 2. As described above, one end portion of the third frame 20 is fixed to the upper end portion of the left vertical portion 16b of the first frame 16 with a screw (not shown).

  The fourth frame 22 is formed in an approximately L shape, extends substantially vertically downward from one end of the second frame 18, and then extends substantially horizontally toward the rear of the care chair 2. ing. As shown in FIG. 6 described later, one end of the fourth frame 22 is fixed to one end of the second frame 18 with a screw 30. The other end of the fourth frame 22 supports a plurality of rear wheels 32 (an example of wheels) for moving the care chair 2. Each of the plurality of rear wheels 32 is a fixed caster, for example.

  The fifth frame 24 is formed in an approximately L shape, extends substantially vertically downward from one end of the third frame 20, and then extends substantially horizontally toward the rear of the care chair 2. ing. As described above, one end of the fifth frame 24 is fixed to one end of the third frame 20 with a screw (not shown). The other end of the fifth frame 24 supports a plurality of rear wheels 32 (an example of wheels) for moving the care chair 2.

[1-3. Left side seat and right side seat]
Next, the left seat portion 8a and the right seat portion 8b will be described with reference to FIGS. FIG. 2 is a perspective view showing a use state of the care chair 2 according to the first embodiment.

  As shown in FIG. 1, the left seat portion 8 a and the right seat portion 8 b are for supporting (mounting) the buttocks of the cared person 4 who is seated, and are respectively disposed on the left and right.

  The left seat 8a is formed in a plate shape, and is supported by the third frame 20 via a pair of substantially L-shaped links 34 so as to be able to turn (an example of movement). A pair of groove portions 38 (only one groove portion 38 is shown in FIGS. 1 and 2) are formed on both side portions in the front-rear direction (Y-axis direction) of the left seat portion 8a. Each of the pair of groove portions 38 extends in a long shape in a direction substantially perpendicular to the thickness direction of the left seat portion 8a. The pair of links 34 are arranged at an interval in the longitudinal direction of the third frame 20 and are rotatably supported by the third frame 20. As shown in FIG. 2, a pair of protrusions 36 projecting toward the pair of groove portions 38 are formed at the distal ends of the pair of links 34. The protrusion 36 is movably inserted into the groove 38.

  When the protrusion 36 moves along the longitudinal direction of the groove 38 with respect to the groove 38, the left seat 8a has a first support position (see FIG. 1) and a first non-support position (see FIG. 2). Swivel between. As shown in FIG. 1, the first support position is a position where the left seat portion 8 a is in a substantially horizontal posture between the second frame 18 and the third frame 20. On the other hand, as shown in FIG. 2, the first non-supporting position is a position where the left seat portion 8 a is in a substantially vertical posture outside the third frame 20. Therefore, the left seat portion 8a supports the buttocks of the cared person 4 at the first support position and does not support the buttocks of the cared person 4 at the first non-supporting position. The left seat 8a is provided with a stopper mechanism (not shown) for fixing the left seat 8a at the first non-supporting position.

  The right seat 8b is formed in a plate shape, and is supported by the second frame 18 via a pair of substantially L-shaped links 40 so as to be able to turn (an example of movement). A pair of groove portions 44 (only one groove portion 44 is shown in FIGS. 1 and 2) is formed on both side portions in the front-rear direction (Y-axis direction) of the right seat portion 8b. Each of the pair of groove portions 44 extends in a long shape in a direction substantially perpendicular to the thickness direction of the right seat portion 8b. The pair of links 40 are arranged at intervals in the longitudinal direction of the second frame 18 and are rotatably supported by the second frame 18. A pair of protrusions 42 are formed at the distal ends of the pair of links 40 so as to protrude toward the pair of grooves 44. The protrusion 42 is movably inserted into the groove 44.

  As the protrusion 42 moves along the longitudinal direction of the groove 44 with respect to the groove 44, the right seat 8 b has the second support position (see FIGS. 1 and 2) and the first position similar to the left seat 8 a. It turns between two non-supporting positions (see FIG. 10A described later). As shown in FIGS. 1 and 2, the second support position is a position where the right seat portion 8 b is in a substantially horizontal posture between the second frame 18 and the third frame 20. On the other hand, as shown in FIG. 10A to be described later, the second non-supporting position is a position where the right seat 8b is in a substantially vertical posture outside the second frame 18. Therefore, the right seat portion 8b supports the buttocks of the cared person 4 at the second support position and does not support the buttocks of the cared person 4 at the second non-supporting position. The right seat 8b is provided with a stopper mechanism (not shown) for fixing the right seat 8b in the second non-supporting position.

  The left seat part 8a and the right seat part 8b can each turn independently. When the cared person 4 sits on the left seat 8a and the right seat 8b, the left seat 8a and the right seat 8b are positioned at the first support position and the second support position, respectively. On the other hand, when the cared person 4 does not sit on the left seat 8a and the right seat 8b, the left seat 8a and the right seat 8b are positioned at the first non-support position and the second non-support position, respectively. .

  A first recess 46 is formed at a position facing the right seat 8b of the left seat 8a. Moreover, the 2nd recessed part 48 is formed in the position facing the left side seat part 8a of the right side seat part 8b. As shown in FIG. 11 to be described later, the first recess 46 and the second recess 48 are configured such that the left seat portion 8a and the right seat portion 8b are on the toilet seat 52 of the western-style toilet 50, respectively. When positioned at the support position, the opening 52a of the toilet seat 52 is exposed.

[1-4. Left footrest and right footrest]
Next, the left footrest 10a and the right footrest 10b will be described with reference to FIGS. 3 is an enlarged perspective view showing the left footrest 10a and the first elevating mechanism 54 according to the first embodiment. 4 is an enlarged perspective view showing the left footrest 10a and the first lifting mechanism 54 according to the first embodiment from an angle different from that in FIG.

  As shown in FIGS. 1 and 2, the left footrest 10a and the right footrest 10b are respectively for supporting (mounting) the left foot and the right foot of the cared person 4 seated, and are respectively disposed on the left and right. .

  The left footrest 10a is formed in a plate shape, and the main body 6 is interposed between the lower limit position (see FIG. 1) and the upper limit position (see FIG. 2 and FIG. 10D described later) via the first lifting mechanism 54. It is supported so that it can be raised and lowered. The right footrest 10b is supported by the main body 6 via the second lifting mechanism 56 so as to be movable between a lower limit position (see FIG. 1) and an upper limit position (see FIG. 10E described later).

  The first elevating mechanism 54 and the second elevating mechanism 56 are mechanisms for raising and lowering the left footrest 10 a and the right footrest 10 b, respectively, and are supported on the upper surfaces of the pair of support plates 26. Since the first lifting mechanism 54 and the second lifting mechanism 56 operate independently, the left footrest 10a and the right footrest 10b can be lifted and lowered independently. Each of the left footrest 10a and the right footrest 10b moves up and down between the lower limit position and the upper limit position while maintaining a substantially horizontal posture (a posture substantially parallel to the horizontal direction). Since the configuration and operation of each of the first elevating mechanism 54 and the second elevating mechanism 56 are the same (or symmetrical), only the configuration and operation of the first elevating mechanism 54 will be described below.

  As shown in FIGS. 3 and 4, the first elevating mechanism 54 includes a column 58, a lower plate 60, an upper plate 62, a pair of pulleys 64 and 66, a drive chain 68, and a first guide. A post 70, a foot lever 72, a second guide post 74, and an elevating plate 76 are provided.

  The support column 58 is fixed to the upper surface of the support plate 26 and extends substantially vertically upward from the upper surface of the support plate 26. The lower plate 60 and the upper plate 62 are fixed to the lower end and the upper end of the column 58, respectively. The lower plate 60 and the upper plate 62 are disposed at positions facing each other.

  The pair of pulleys 64 and 66 are rotatably supported near the upper end portion and the lower end portion of the column 58, respectively. The drive chain 68 is rotatably wound around a pair of pulleys 64 and 66. Instead of the drive chain 68, a wire may be rotatably wound around the pair of pulleys 64 and 66.

  The first guide post 70 is fixed between the lower plate 60 and the upper plate 62 and extends substantially vertically. The foot lever 72 is for operating the left footrest 10a to move up and down, and is supported by the first guide post 70 through the linear bush 78 so as to be able to move up and down. The foot lever 72 is connected to a part of the drive chain 68.

  The second guide post 74 is fixed between the lower plate 60 and the upper plate 62 and extends substantially vertically. The elevating plate 76 is for elevating the left footrest 10a, and is supported by the second guide post 74 via the linear bush 80 so as to be elevable. The elevating plate 76 is connected to a part of the drive chain 68.

  A left footrest 10a is rotatably supported on the lifting plate 76. Thus, the left footrest 10a rotates between a substantially horizontal posture (see FIG. 1) and a substantially vertical posture (see FIG. 10A described later) around a turning shaft (not shown) extending in the Y-axis direction. can do. When the cared person 4 sits on the care chair 2, the left footrest 10 a is rotated from a substantially vertical position to a substantially horizontal position. On the other hand, when the cared person 4 does not sit on the care chair 2, the left footrest 10 a is rotated from a substantially horizontal posture to a substantially vertical posture.

  Next, the operation of the first lifting mechanism 54 will be described. As shown in FIG. 3, for example, when a caregiver steps on the foot lever 72 with his / her foot from a state where the foot lever 72 is positioned above the left footrest 10 a, the foot lever 72 moves along the first guide post 70. Descend. Along with this, the drive chain 68 rotates in a predetermined direction (counterclockwise in FIG. 3), so that the elevating plate 76 rises along the second guide post 74 while being pulled upward by the drive chain 68. . As a result, as shown in FIG. 2, the left footrest 10 a is positioned above the foot lever 72.

  On the other hand, from a state where the foot lever 72 is positioned below the left footrest 10a, for example, when the caregiver lifts the foot lever 72 with his / her foot, the foot lever 72 rises along the first guide post 70. Along with this, the drive chain 68 rotates in the direction opposite to the predetermined direction (clockwise in FIG. 3), so that the elevating plate 76 is pulled along the second guide post 74 while being pulled downward by the drive chain 68. And descend. As a result, as shown in FIG. 1, the left footrest 10 a is positioned below the foot lever 72.

[1-5. Left armrest and right armrest]
Next, the left armrest 12a and the right armrest 12b will be described with reference to FIGS. 1, 2, and 5 to 7. FIG. FIG. 5 is an enlarged perspective view showing a part of the right armrest 12b according to the first embodiment. 6 is a cross-sectional perspective view taken along line VI-VI in FIG. 7 is a cross-sectional perspective view taken along line VII-VII in FIG.

  As shown in FIGS. 1 and 2, the left armrest 12a and the right armrest 12b are for supporting the left arm and the right arm of the cared person 4 seated, respectively, and are arranged on the left and right.

  The left armrest 12a is supported by the third frame 20 so as to be tiltable. The right armrest 12b is supported by the second frame 18 so as to be tiltable. The left armrest 12a and the right armrest 12b can be tilted independently. The maximum angle θ (see FIG. 2) at which each of the left armrest 12a and the right armrest 12b tilts is, for example, about 30 °.

  As shown in FIGS. 1 and 2, the right armrest 12 b includes a support frame 82 (an example of a right support frame) and a cushion member 84.

  The support frame 82 is formed of, for example, a metal pipe or the like, and has a pair of rotating parts 82a and 82b and a support part 82c. The pair of rotating portions 82a and 82b respectively extend substantially in parallel with each other from both end portions of the second frame 18. As shown in FIGS. 5 and 6, one end portion of one rotating portion 82 a is rotatably supported by one end portion of the second frame 18. As shown in FIGS. 5 and 7, one end portion of the other rotation portion 82 b is rotatably supported by the other end portion of the second frame 18. As shown in FIG. 7, a torsion coil spring 86 is disposed between one end of the other rotating portion 82 b and the other end of the second frame 18. The support part 82c is formed in a horizontally long substantially rectangular shape, and extends substantially horizontally from the other end of the other rotating part 82b toward the front of the care chair 2 (minus side of the Y axis).

  The cushion member 84 is supported by the support portion 82 c of the support frame 82. The cushion member 84 is formed in a substantially rectangular flat plate shape having a thickness of about several centimeters, for example. The cushion member 84 is formed of a flexible material.

  As each of the pair of rotating portions 82a and 82b rotates around the second frame 18, the right armrest 12b moves between a substantially vertical posture (see FIG. 1) and an inclined posture (see FIG. 2). Tilt. As shown in FIG. 1, the right armrest 12b extends substantially vertically upward from the second frame 18 in a substantially vertical posture. On the other hand, as shown in FIG. 2, the right armrest 12 b extends obliquely upward outward from the second frame 18 in the inclined posture. Note that the right armrest 12b is biased from an inclined posture toward a substantially vertical posture by the elastic restoring force of the torsion coil spring 86.

  Further, as shown in FIG. 6, a lock mechanism 88 for fixing the right armrest 12b in a substantially vertical posture is provided at one end of the one rotation portion 82a. The lock mechanism 88 includes a lock lever 88a, a lock pin 88b provided on the lock lever 88a, and a coil spring 88c that urges the lock lever 88a. The lock pin 88b is urged to be inserted into the hole 90 formed at one end of the one rotation portion 82a by the elastic restoring force of the coil spring 88c.

  By inserting the lock pin 88b into the hole 90, the lock mechanism 88 is locked. In this locked state, the right armrest 12b is fixed in a substantially vertical posture, and the tilting operation of the right armrest 12b is locked. On the other hand, when the lock pin 88b is pulled out from the hole 90 by operating the lock lever 88a, the lock mechanism 88 is released. In this released state, the tilting operation of the right armrest 12b is allowed.

  As shown in FIGS. 1 and 2, the left armrest 12 a includes a support frame 92 (an example of a left support frame) and a cushion member 94.

  The support frame 92 is formed of, for example, a metal pipe or the like, and has a pair of rotating portions 92a and 92b and a support portion 92c. The pair of rotating portions 92 a and 92 b extend substantially in parallel with each other from both ends of the third frame 20. One end portion of one rotating portion 92a is rotatably supported by one end portion of the third frame 20. In addition, one end portion of the other rotation portion 92 b is rotatably supported by the other end portion of the third frame 20. A torsion coil spring (not shown) is disposed between one end of the other rotating portion 92b and the other end of the third frame 20. The support portion 92c is formed in a horizontally long substantially rectangular shape, and extends substantially horizontally from the other end portion of the other rotating portion 92b toward the front of the care chair 2.

  The cushion member 94 is supported by the support portion 92 c of the support frame 92. The cushion member 94 is formed in a substantially rectangular flat plate shape having a thickness of about several centimeters, for example. The cushion member 94 is formed of a flexible material.

  As each of the pair of rotating portions 92a and 92b rotates around the third frame 20, the left armrest 12a has a substantially vertical posture (see FIG. 1) and an inclined posture (see FIG. 10E described later). Tilt between. As shown in FIG. 1, the left armrest 12a extends substantially vertically upward from the third frame 20 in a substantially vertical posture. On the other hand, as shown in FIG. 10E to be described later, the left armrest 12a extends obliquely upward to the outside of the third frame 20 in the inclined posture. Note that the left armrest 12a is biased from an inclined posture toward a substantially vertical posture by an elastic restoring force of a torsion coil spring.

  Further, as shown in FIG. 1, a lock mechanism 96 for fixing the left armrest 12a in a substantially vertical posture is provided at one end of the one rotation portion 92a. Since the configuration of the lock mechanism 96 is the same as the configuration of the lock mechanism 88 described above, the description thereof is omitted.

  As shown in FIG. 1, a substantially U-shaped left handle 98a is connected between the other end portion of the one rotation portion 92a and the support portion 92c. In addition, a substantially U-shaped right handle 98b is connected between the other end portion of the one rotation portion 82a and the support portion 82c. The left side handle 98a and the right side handle 98b are used by the caregiver or the seated person 4 to be gripped by hand. The left handle 98a and the right handle 98b protrude from the left armrest 12a and the right armrest 12b to the front of the care chair 2, respectively.

[1-6. Left backrest and right backrest]
Next, the left backrest portion 14a and the right backrest portion 14b will be described with reference to FIGS. 1, 8, and 9. FIG. FIG. 8 is an enlarged perspective view of the left backrest portion 14a according to the first embodiment. 9 is a cross-sectional perspective view taken along line IX-IX in FIG.

  As shown in FIG. 1, the left back portion 14 a and the right back portion 14 b are for supporting the back of the cared person 4 who is seated, and are arranged on the left and right.

  As shown in FIGS. 8 and 9, the left backrest part 14a is rotatably supported by the main body part 6 via the left armrest 12a. Specifically, the left backrest portion 14a is rotatably supported by the support portion 92c of the left armrest 12a. The left backrest 14a rotates between a substantially horizontal posture (indicated by a solid line in FIG. 1) and a substantially vertical posture (indicated by a two-dot chain line in FIG. 1). As shown by a solid line in FIG. 1, the left backrest portion 14a extends substantially horizontally from the left armrest 12a in a substantially vertical posture in a substantially horizontal posture. On the other hand, as shown by a two-dot chain line in FIG. 1, the left backrest portion 14 a extends substantially vertically upward from the left armrest 12 a in the substantially vertical posture in the substantially vertical posture.

  Moreover, the right backrest part 14b is rotatably supported by the main-body part 6 via the right armrest 12b. Specifically, the right backrest portion 14b is rotatably supported by the support portion 82c of the right armrest 12b. The right backrest part 14b rotates between a substantially horizontal posture (indicated by a solid line in FIG. 1) and a substantially vertical posture (indicated by a two-dot chain line in FIG. 1). As shown by a solid line in FIG. 1, the right backrest portion 14b extends substantially horizontally from the left armrest 12a in a substantially vertical posture in a substantially horizontal posture. On the other hand, as indicated by a two-dot chain line in FIG. 1, the right backrest portion 14b extends substantially vertically upward from the right armrest 12b in the substantially vertical posture in the substantially vertical posture.

  The left backrest portion 14a and the right backrest portion 14b can be independently rotated. When the cared person 4 sits on the care chair 2, each of the left backrest portion 14a and the right backrest portion 14b is rotated from a substantially vertical posture to a substantially horizontal posture. In this state, the left backrest portion 14a and the right backrest portion 14b are arranged to face each other. On the other hand, when the cared person 4 does not sit on the care chair 2, each of the left backrest portion 14a and the right backrest portion 14b is rotated from a substantially horizontal posture to a substantially vertical posture.

  As shown in FIG. 2, when the left armrest 12a and the right armrest 12b are tilted, the left backrest portion 14a and the right backrest portion 14b are tilted integrally with the left armrest 12a and the right armrest 12b, respectively.

[1-7. How to use a care chair]
Next, the usage method of the care chair 2 which concerns on Embodiment 1 is demonstrated, referring FIG. 10A-FIG. 10E and FIG. Each of FIG. 10A to FIG. 10E is a perspective view for explaining an example of a method of using the care chair 2 according to Embodiment 1. FIG. 11 is a perspective view for explaining another example of how to use the care chair 2 according to Embodiment 1. FIG.

  Hereinafter, the case where a caregiver transfers the care receiver 4 from the bed 100 to the care chair 2 will be described as an example of a method of using the care chair 2.

  First, as shown in FIG. 10A, the caregiver causes the care receiver 4 to take a sitting posture at the end of the bed 100. Thereafter, as shown in FIG. 10B, the caregiver brings the care chair 2 close to the end of the bed 100. Thereby, the other end of each of the fourth frame 22 and the fifth frame 24 is inserted between the bed 100 and the floor surface 102. Further, the left armrest 12a and the right armrest 12b are positioned on the left side and the right side of the care receiver 4 above the bed 100, respectively.

  In the state shown in FIGS. 10A and 10B, the left seat 8a and the right seat 8b are located at the first non-support position and the second non-support position, respectively. Each of the left footrest 10 a and the right footrest 10 b takes a substantially vertical posture and is positioned at a lower limit position below the foot lever 72. Each of the left armrest 12a and the right armrest 12b has a substantially vertical posture. At this time, since each of the lock mechanisms 88 and 96 is in the locked state, each of the left armrest 12a and the right armrest 12b is fixed in a substantially vertical posture. In addition, each of the left backrest portion 14a and the right backrest portion 14b has a substantially vertical posture. 10B, when the care chair 2 is brought close to the end of the bed 100, each component of the care chair 2 does not hit the care receiver 4.

  Thereafter, as shown in FIG. 10C, the caregiver rotates each of the left backrest portion 14a and the right backrest portion 14b from a substantially vertical posture to a substantially horizontal posture, and each of the left footrest 10a and the right footrest 10b is substantially omitted. It is rotated from a vertical posture to a substantially horizontal posture. Thereafter, the caregiver places the left foot and the right foot of the cared person 4 on the left footrest 10a and the right footrest 10b, respectively.

  Thereafter, as shown in FIG. 10D, the caregiver raises the left footrest 10a from the lower limit position to the upper limit position by stepping on the foot lever 72 of the first elevating mechanism 54 with his / her foot. Thereby, since the left footrest 10a is located above the right footrest 10b, the left foot of the cared person 4 is located above the right foot.

  Thereafter, as shown in FIG. 10D, the caregiver turns the lock mechanism 88 to the released state, and then places the upper body of the cared person 4 on the right side with the right armrest 12 b sandwiched between the right armpit of the cared person 4. Tilt. Thereby, the right armrest 12b tilts from the substantially vertical posture to the inclined posture together with the upper body of the care recipient 4. At this time, the cushion member 84 of the right armrest 12b supports a part from the right axillary part to the lower right buttocks of the care recipient 4 (or from the right axillary part to the right chest).

  Thus, in the state where the upper half of the cared person 4 is tilted to the right and the left leg of the cared person 4 is positioned above the right leg, the left half of the buttocks of the cared person 4 is from the upper surface of the bed 100. Comes to float. In this state, as shown in FIG. 10D, the caregiver turns the left seat 8a from the first non-supporting position to the first supporting position. As a result, the left seat 8 a is inserted between the left half of the buttocks of the cared person 4 and the upper surface of the bed 100. Thereafter, the caregiver returns the upper body of the cared person 4 straight and puts the lock mechanism 88 in the locked state.

  Thereafter, as shown in FIG. 10E, the caregiver lowers the left footrest 10a from the upper limit position to the lower limit position by lifting the foot lever 72 of the first elevating mechanism 54 with the foot. The caregiver raises the right footrest 10b from the lower limit position to the upper limit position by stepping on the foot lever 72 of the second lifting mechanism 56 with his / her foot. Thereby, since the right footrest 10b is located above the left footrest 10a, the right foot of the cared person 4 is located above the left foot.

  Thereafter, as shown in FIG. 10E, the caregiver puts the lock mechanism 96 in the released state, and then places the upper body of the cared person 4 on the left side with the left armrest 12 a sandwiched between the left armpit of the cared person 4. Tilt. Thereby, the left armrest 12a tilts from the substantially vertical posture to the inclined posture together with the upper body of the care receiver 4. At this time, the cushion member 94 of the left armrest 12a supports a part from the left axillary part to the lower left buttocks of the care recipient 4 (or from the left axillary part to the left chest).

  Thus, in the state where the upper half of the cared person 4 tilts to the left and the right leg of the cared person 4 is positioned above the left leg, the right half of the buttocks of the cared person 4 extends from the upper surface of the bed 100. Comes to float. In this state, as shown in FIG. 10E, the caregiver turns the right seat 8b from the second non-supporting position to the second supporting position. Thereby, the right seat 8b is inserted between the right half of the buttocks of the cared person 4 and the upper surface of the bed 100.

  Thereafter, the caregiver returns the upper body of the cared person 4 straight and puts the lock mechanism 96 in the locked state. Thereafter, the caregiver lowers the right footrest 10b from the upper limit position to the lower limit position by lifting the foot lever 72 of the second lifting mechanism 56 with his / her foot. Thereby, the cared person 4 comes to take the posture seated on the left side seat portion 8a and the right side seat portion 8b.

  As described above, the cared person 4 can be transferred from the bed 100 to the care chair 2. Thereafter, the care giver can move the care receiver 4 by holding the left handle 98a and the right handle 98b with both hands and walking while pushing the care chair 2 forward (or pulling forward). it can. At this time, the cared person 4 may hold the left handle 98a and the right handle 98b with both hands.

  For example, when the cared person 4 is moved from the bed 100 to the toilet, the left seat portion 8a and the right seat portion 8b are each in the first support position on the toilet seat 52 of the western-style toilet 50, as shown in FIG. And it comes to be located in the 2nd support position. At this time, since the first recess 46 and the second recess 48 expose the opening 52a of the toilet seat 52, the cared person 4 adds his / her use while sitting on the left seat 8a and the right seat 8b. Can do.

  When the caregiver undresses or wears the pants or the like of the cared person 4, the upper body of the cared person 4 tilts to the right (or left side) and the left foot of the cared person 4, as described above. May be positioned above the right foot (or the right foot is above the left foot). Thereby, since the buttocks of the cared person 4 is lifted from the left side seat part 8a and the right side seat part 8b, the cared person's 4 pants etc. can be removed or put on easily.

  In addition, what is necessary is just to perform operation | movement contrary to operation | movement of FIG. 10A-FIG. 10E mentioned above, when transferring the care receiver 4 from the care chair 2 to the bed 100.

[1-8. effect]
As described above, the care chair 2 of the present embodiment is a care chair for the care receiver 4 to sit on. The care chair 2 is a left-side seat that is supported by the main body 6, the front wheel 28 and the rear wheel 32 for moving the main body 6, and the main body 6 so as to be independently movable. A left side footrest 10a and a right side footrest 10b that are respectively supported by the main body 6 so as to be able to move up and down independently and arranged on the left and right sides, respectively. The left seat 8a has a first support position that supports the buttocks of the cared person 4 and a first that does not support the buttocks of the cared person 4 with the left footrest 10a positioned above the right footrest 10b. It can move between unsupported positions. The right seat 8b has a second support position that supports the buttocks of the cared person 4 and a second that does not support the buttocks of the cared person 4 with the right footrest 10b positioned above the left footrest 10a. It can move between unsupported positions.

  According to this, in the state where the left footrest 10a is positioned above the right footrest 10b, the left foot of the cared person 4 is positioned above the right foot, for example, sitting on the end of the bed 100 or the like. The left half of the buttocks of the cared person 4 comes to rise. In this state, the left seat portion 8a is moved from the first non-support position to the first support position (or from the first support position to the first non-support position), so that the left seat portion 8a is covered. It can be easily inserted into the lower side of the buttocks of the caregiver 4 (or easily removed from the lower side of the buttocks of the cared person 4).

  Similarly, in the state where the right footrest 10b is positioned above the left footrest 10a, the right foot of the care receiver 4 is positioned above the left foot, so that the cared person sitting on the end of the bed 100, for example, The right half of the buttocks of Person 4 comes to rise. In this state, the right seat 8b is moved from the second non-supporting position to the second supporting position (or from the second supporting position to the second non-supporting position), so that the right seat 8b is covered. It can be easily inserted into the lower side of the buttocks of the caregiver 4 (or easily removed from the lower side of the buttocks of the cared person 4).

  Accordingly, the care giver can easily transfer the care receiver 4 between the bed 100 and the care chair 2 while the care receiver 4 is seated on the end of the bed 100, for example. As a result, the physical burden on the caregiver can be greatly reduced.

  Furthermore, the care chair 2 includes a left armrest 12a and a right armrest 12b, which are supported by the main body 6 so as to be independently tiltable, and are respectively arranged on the left and right. The left armrest 12a can tilt outward from the main body 6 with the right footrest 10b positioned above the left footrest 10a. The right armrest 12b can tilt outward from the main body 6 in a state where the left footrest 10a is positioned above the right footrest 10b.

  According to this, the left armrest 12a tilts outward from the main body 6 and the right footrest 10b is positioned above the left footrest 10a, so that the seat rests on the end of the bed 100, for example. The right half of the buttocks of the caregiver 4 can be lifted more easily. The right armrest 12b tilts outward from the main body 6 and the left footrest 10a is positioned above the right footrest 10b, so that the cared person 4 sitting on the end of the bed 100 or the like, for example. The left half of the buttocks can be raised more easily.

  Furthermore, the care chair 2 includes a left handle 98a protruding forward from the left armrest 12a and a right handle 98b protruding forward from the right armrest 12b.

  According to this, the caregiver can easily move the care chair 2 by holding the left handle 98a and the right handle 98b with both hands. Further, when the cared person 4 moves while sitting on the care chair 2, the user 4 can stabilize the sitting posture by holding the left handle 98 a and the right handle 98 b with both hands.

  Furthermore, the left armrest 12a supports at least the left axilla portion of the cared person 4 sitting when tilted outward from the main body portion 6. The right armrest 12b supports at least the right axillary portion of the cared person 4 sitting when tilted outward from the main body portion 6.

  According to this, since the left armrest 12a supports at least the left axilla of the cared person 4, when the cared person 4 tilts to the left side with the left armrest 12a, the posture of the cared person 4 can be stabilized. it can. Moreover, since the right armrest 12b supports at least the right axilla of the cared person 4, when the cared person 4 tilts to the right side together with the right armrest 12b, the position of the cared person 4 can be stabilized.

  Furthermore, the care chair 2 includes a left backrest portion 14a and a right backrest portion 14b that are rotatably supported by the main body portion 6 and arranged on the left and right, respectively. The left backrest portion 14a and the right backrest portion 14b tilt together with the left armrest 12a and the right armrest 12b, respectively.

  According to this, since the left back part 14a and the right back part 14b are rotatably supported by the main body part 6, the back of the cared person 4 seated is supported by the left back part 14a and the right back part 14b. Can be supported. Further, when the care receiver 4 is transferred, the left back portion 14a and the right back portion 14b are prevented from colliding with the care receiver 4 by rotating the left back portion 14a and the right back portion 14b. Can do.

  Further, the left seat 8a turns from the substantially horizontal posture to the substantially vertical posture by moving from the first support position to the first non-support position. The right seat 8b turns from a substantially horizontal posture to a substantially vertical posture by moving from the second support position to the second non-support position.

  According to this, the left seat portion 8a and the right seat portion 8b take a substantially vertical posture when positioned at the first non-support position and the second non-support position, respectively. The part 8b can be arranged compactly.

  Further, the left seat portion 8a has a first recess 46 formed at a position facing the right seat portion 8b. The right seat portion 8b has a second recess 48 formed at a position facing the left seat portion 8a. The first recess 46 and the second recess 48 are provided when the left seat portion 8a and the right seat portion 8b are positioned at the first support position and the second support position on the toilet seat 52 of the western-style toilet 50, respectively. The opening 52a of 52 is exposed.

  According to this, since the first recess 46 and the second recess 48 expose the opening 52a of the toilet seat 52, the cared person 4 is used in a state of being seated on the left seat 8a and the right seat 8b. Can be added.

(Embodiment 2)
Next, a nursing chair according to Embodiment 2 will be described. In the following embodiments, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

[2-1. Composition of care chair]
The configuration of the care chair 2A according to Embodiment 2 will be described with reference to FIGS. 12 and 13. FIG. 12 is a perspective view showing an appearance of a care chair 2A according to the second embodiment. FIG. 13 is an enlarged perspective view showing the left seat 8Aa and the right seat 8Ab according to the second embodiment. For convenience of explanation, in FIG. 12 and FIG. 13, some components of the care chair 2 </ b> A are omitted or simplified for illustration.

  As shown in FIG. 12, the care chair 2 </ b> A according to the second embodiment includes a handlebar 104 in addition to the configuration requirements described in the first embodiment. The handle bar 104 is formed in a substantially U shape and is rotatably supported by the main body 6. The handle bar 104 rotates between a use position (indicated by a solid line in FIG. 12) extending upward from the main body 6 and a non-use position (indicated by a dashed line in FIG. 12) extending downward from the main body 6. .

  For example, when the care receiver 4 (see FIG. 10A) is transferred from the bed 100 (see FIG. 10A) to the care chair 2A, the handle bar 104 is positioned at the non-use position. Thereby, the handle bar 104 does not interfere with the cared person's 4 transfer operation.

  For example, when the care receiver 4 is moved by the care chair 2A, the handle bar 104 is positioned at the use position. Thus, the caregiver can walk while pushing the care chair 2A forward (or pulling forward) while holding the handle bar 104 with both hands.

  As shown in FIG. 12, in the care chair 2A according to the second embodiment, the shapes of the left handle 98Aa and the right handle 98Ab are different from those of the first embodiment. Each of the left handle 98Aa and the right handle 98Ab is formed in a straight line.

  Moreover, as shown in FIG. 13, in the care chair 2A according to the second embodiment, the mechanism for independently moving the left seat portion 8Aa and the right seat portion 8Ab is different from that of the first embodiment. .

  The left seat 8Aa is supported by the main body 6 through a linear link 106a so as to be slidable. One end of the link 106a is rotatably supported by the main body 6 via a rotation shaft 108a. The other end of the link 106a is rotatably supported by the left seat 8Aa via the rotation shaft 110a. Thereby, the left seat portion 8Aa slides between the first support position (see FIG. 12) and the first non-support position (see FIG. 13) while maintaining a substantially horizontal posture. The first non-supporting position is a position on the left outside of the main body 6.

  The right seat 8Ab is supported by the main body 6 so as to be slidable via a linear link 106b. One end of the link 106b is rotatably supported by the main body 6 via a rotation shaft 108b. The other end of the link 106b is rotatably supported by the right seat 8Ab via the rotation shaft 110b. As a result, the right seat 8Ab slides between the second support position (see FIGS. 12 and 13) and the second non-support position (not shown) while maintaining a substantially horizontal posture. . The second non-supporting position is a position on the right outside of the main body 6 and is substantially symmetrical with respect to the main non-supporting position.

  As shown in FIG. 13, the care chair 2 </ b> A according to Embodiment 2 includes a fixing portion for fixing the left seat portion 8 </ b> Aa and the right seat portion 8 </ b> Ab to the first support position and the second support position, respectively. 112 is provided. The fixed portion 112 has a protrusion 112a provided on the left seat 8Aa and a recess 112b provided on the right seat 8Ab. As shown in FIG. 12, when the left seat 8Aa and the right seat 8Ab are positioned at the first support position and the second support position, respectively, the protrusion 112a is detachably engaged with the recess 112b. Thereby, the left seat portion 8Aa and the right seat portion 8Ab are fixed to the first support position and the second support position, respectively.

[2-2. effect]
As described above, the care chair 2A of the present embodiment further includes the fixing portion 112 that fixes the left seat portion 8Aa and the right seat portion 8Ab to the first support position and the second support position, respectively.

  According to this, the cared person 4 is stabilized in the left seat portion 8Aa and the right seat portion 8Ab by fixing the left seat portion 8Aa and the right seat portion 8Ab to the first support position and the second support position, respectively. And can sit down.

  Furthermore, the left seat 8Aa slides between the first support position and the first non-support position while maintaining a substantially horizontal posture. The right seat 8Ab slides between the second supporting position and the second non-supporting position while maintaining a substantially horizontal posture.

  According to this, each movement of left seat part 8Aa and right seat part 8Ab can be performed easily.

(Embodiment 3)
Next, the configuration of the care chair 2B according to Embodiment 3 will be described with reference to FIG. FIG. 14 is a plan view showing the care chair 2B according to the third embodiment. For convenience of explanation, in FIG. 14, some of the components of the care chair 2B are omitted or simplified.

  As shown in FIG. 14, in the care chair 2B according to the third embodiment, a connecting portion 114 is provided at the central portion on the front side of the main body portion 6B. The main body 6 </ b> B can be opened and closed left and right around the connecting portion 114.

  Hereinafter, a method of using the care chair 2B according to Embodiment 3 will be briefly described. The caregiver causes the cared person 4 (see FIG. 10A) to take a sitting posture at the end of the bed 100 (see FIG. 10A), and then opens the main body 6B to the left and right as shown in FIG. In this state, the care chair 2 </ b> B is brought close to the end of the bed 100.

  Thereafter, the caregiver can insert the left seat portion 8a and the right seat portion 8b between the buttocks of the care recipient 4 and the bed 100 by closing the main body portion 6B as shown in FIG. it can.

(Embodiment 4)
[4-1. Composition of care chair]
Next, the configuration of the care chair 2C according to Embodiment 4 will be described with reference to FIGS. 15 and 16. FIG. 15 is a diagram simply showing a configuration of a care chair 2C according to the fourth embodiment. FIG. 16 is a diagram illustrating a usage example of the care chair 2 </ b> C according to the fourth embodiment. (A) of FIG. 16 is a figure which shows the usage example of the nursing chair 2 'which concerns on a comparative example, (b) of FIG. 16 is a figure which shows the usage example of the nursing chair 2C which concerns on Embodiment 4. FIG. It is.

  As shown in FIG. 15, in the care chair 2C according to the fourth embodiment, the configurations of the left footrest 10Ca and the right footrest 10Cb are different from those of the first embodiment. Specifically, each of the left footrest 10Ca and the right footrest 10Cb tilts from a substantially horizontal posture to an inclined posture in a state where the left footrest 10Ca and the right footrest 10Cb are raised from the lower limit position toward the upper limit position (that is, during the rise). Thereby, each of the left footrest 10Ca and the right footrest 10Cb assumes a substantially horizontal posture when positioned at the lower limit position, and assumes an inclined posture when positioned at the upper limit position.

  In the inclined posture, the left footrest 10Ca is inclined downward with respect to the horizontal direction (X-axis direction) and toward the right footrest 10Cb. In the inclined posture, the right footrest 10Cb is inclined downward with respect to the horizontal direction and toward the left footrest 10Ca.

  Next, the tilting mechanism 116a for tilting the left footrest 10Ca will be described. The tilt mechanism 116 a includes a motor 118, a motor side gear 120, a position detection sensor (not shown), a control unit (not shown), and a footrest side gear 122.

  The motor 118 is attached to the left footrest 10Ca and has an output shaft that can rotate in the forward and reverse directions. The motor side gear 120 is fixed to the output shaft of the motor 118. The position detection sensor detects the height position (position in the Z-axis direction) of the left footrest 10Ca. The control unit rotates the output shaft of the motor 118 in the forward direction or the reverse direction based on the detection signal from the position detection sensor. At this time, the control unit synchronizes the height position of the left footrest 10Ca and the rotational speed of the output shaft of the motor 118. The footrest side gear 122 is fixed to the left footrest 10Ca and meshed with the motor side gear 120.

  When the left footrest 10Ca starts to rise from the lower limit position toward the upper limit position, the control unit moves the output shaft of the motor 118 in the forward direction (indicated by an arrow P in FIG. 15) based on the detection signal from the position detection sensor. Rotate in the direction shown). As a result, the rotation of the output shaft of the motor 118 is transmitted to the left footrest 10Ca via the motor side gear 120 and the footrest side gear 122, whereby the left footrest 10Ca starts to tilt from a substantially horizontal posture to an inclined posture. To do.

  On the other hand, when the left footrest 10Ca starts to descend from the upper limit position toward the lower limit position, the control unit turns the output shaft of the motor 118 in the reverse direction (arrow in FIG. 15) based on the detection signal from the position detection sensor. Rotate in the direction indicated by Q). Thereby, the rotation of the output shaft of the motor 118 is transmitted to the left footrest 10Ca via the motor side gear 120 and the footrest side gear 122, so that the left footrest 10Ca starts to tilt from the tilted posture toward the substantially horizontal posture. To do.

  In addition, since the structure of the tilting mechanism 116b for tilting the right footrest 10Cb is the same as the structure of the tilting mechanism 116a described above, the description thereof is omitted.

  Hereinafter, a method of using the care chair 2C according to Embodiment 4 will be briefly described. As shown in FIG. 16 (a), in the care chair 2 'according to the comparative example, each of the left footrest 10a and the right footrest 10b moves up and down while maintaining a substantially horizontal posture. Therefore, for example, when the left knee of the cared person 4 opens outward while the left footrest 10a is rising from the lower limit position toward the upper limit position, the upper body of the cared person 4 is less likely to tilt to the right side. As a result, it is difficult for the left half of the buttocks of the cared person 4 to lift from the upper surface of the bed or the like (not shown), and it is difficult to insert the left side seat (not shown) into the lower side of the buttocks of the cared person 4. There is.

  On the other hand, as shown in FIG. 16B, in the care chair 2C according to Embodiment 4, each of the left footrest 10Ca and the right footrest 10Cb rises from the lower limit position toward the upper limit position. In this state, it tilts from a substantially horizontal posture to an inclined posture. Therefore, for example, when the left footrest 10Ca is rising from the lower limit position toward the upper limit position, the left knee of the cared person 4 naturally closes inward, so the upper body of the cared person 4 is on the right side. It becomes easy to tilt. As a result, the left half of the buttocks of the cared person 4 can easily lift from the upper surface of the bed or the like (not shown), and the left side seat part (not shown) can be easily inserted into the lower side of the buttocks of the cared person 4. Can do.

  Similarly, when the right footrest 10Cb is rising from the lower limit position toward the upper limit position, the right knee of the cared person 4 naturally closes inward, so the upper body of the cared person 4 is on the left side. It becomes easy to tilt. As a result, the right half of the buttocks of the cared person 4 is easily lifted from the upper surface of the bed or the like, and the right seat (not shown) can be easily inserted under the buttocks of the cared person 4.

  In addition, it is preferable that the inclination | tilt angle (phi) (refer FIG. 15) with respect to the horizontal direction of each of left footrest 10Ca and right footrest 10Cb is 10 degrees-30 degrees. When the inclination angle φ exceeds 30 °, when the left knee (right knee) of the cared person 4 is closed inward, the upper body of the cared person 4 falls too far to the right (left side), and the cared person There is a possibility that the balance of the body of the person 4 may be lost. On the other hand, when the inclination angle φ is smaller than 10 °, it is difficult to effectively close the left knee (right knee) of the cared person 4 inward.

[4-2. effect]
As described above, in the care chair 2C of the present embodiment, each of the left footrest 10Ca and the right footrest 10Cb can be moved up and down independently between the lower limit position and the upper limit position. When the left footrest 10Ca is positioned at the lower limit position, the left footrest 10Ca has a substantially horizontal posture substantially parallel to the horizontal direction, and when positioned at the upper limit position, the left footrest 10Ca is inclined downward with respect to the horizontal direction and toward the right footrest 10Cb. It becomes the inclination posture to do. When the right footrest 10Cb is located at the lower limit position, the right footrest 10Cb is in a substantially horizontal posture substantially parallel to the horizontal direction, and when it is located at the upper limit position, the right footrest 10Cb is inclined downward with respect to the horizontal direction and toward the left footrest 10Ca. It becomes the inclination posture to do.

  According to this, when the left footrest 10Ca is positioned at the upper limit position, the left knee of the cared person 4 naturally closes inward, so that the upper body of the cared person 4 easily tilts to the right side. As a result, the left half of the buttocks of the cared person 4 can be easily lifted from the upper surface of the bed or the like, and the left side seat part can be easily inserted into the lower side of the buttocks of the cared person 4. Similarly, when the right footrest 10Cb is positioned at the upper limit position, the right knee of the cared person 4 naturally closes inward, so that the upper body of the cared person 4 is easily tilted to the left side. As a result, the right half of the buttocks of the cared person 4 can be easily lifted from the upper surface of the bed or the like, and the right side seat part can be easily inserted under the buttocks of the cared person 4.

  Further, each of the left footrest 10Ca and the right footrest 10Cb tilts from a substantially horizontal posture to an inclined posture in a state where the left footrest 10Ca and the right footrest 10Cb are elevated from the lower limit position to the upper limit position.

  According to this, in conjunction with the rise of the left footrest 10Ca (right footrest 10Cb), the left knee (right knee) of the cared person 4 can be gradually closed inward, giving the cared person 4 a sense of incongruity. Can be suppressed.

  Note that each of the left footrest 10Ca and the right footrest 10Cb may be configured to tilt from a substantially horizontal posture to an inclined posture in a state of being located at the upper limit position.

  At this time, each of the left footrest 10Ca and the right footrest 10Cb maintains a substantially horizontal posture in a state in which the left footrest 10Ca and the right footrest 10Cb are raised from the lower limit position toward the upper limit position. Tilt. In addition, as the mechanism for tilting each of the left footrest 10Ca and the right footrest 10Cb, for example, the tilt mechanisms 116a and 116b described above can be used.

  Furthermore, each of the left footrest 10Ca and the right footrest 10Cb is disposed to be inclined at an angle of 10 ° to 30 ° with respect to the horizontal direction in the inclined posture.

  According to this, when the left footrest 10Ca (right footrest 10Cb) is positioned at the upper limit position, the left knee (right knee) of the cared person 4 is effectively inward while maintaining the balance of the body of the cared person 4. Can be closed.

(Embodiment 5)
Next, the configuration of the care chair 2D according to Embodiment 5 will be described with reference to FIG. FIG. 17 is a diagram simply illustrating a configuration of a care chair 2D according to the fifth embodiment. For convenience of explanation, in FIG. 17, illustration of the configuration relating to the left footrest is omitted.

  As shown in FIG. 17, in the care chair 2D according to the fifth embodiment, the configuration of the tilt mechanism 116Db for tilting the right footrest 10Db is different from that of the fourth embodiment. Specifically, the tilt mechanism 116Db includes a motor 124, a tilt bolt 126, a nut 128, a position detection sensor (not shown), and a control unit (not shown).

  The motor 124 is attached to the main body 6 and has an output shaft that can rotate in the forward and reverse directions. The inclined bolt 126 is fixed to the output shaft of the motor 124 and is rotatably supported by the main body 6. The position detection sensor detects the height position (position in the Z-axis direction) of the right footrest 10Db. The control unit rotates the output shaft of the motor 124 in the forward direction or the reverse direction based on the detection signal from the position detection sensor. At this time, the control unit synchronizes the height position of the right footrest 10Db and the rotation speed of the output shaft of the motor 124. The nut 128 is disposed so as to penetrate the right footrest 10Db in the thickness direction. An inclination bolt 126 is rotatably screwed into the nut 128.

  When the right footrest 10Db starts to rise from the lower limit position toward the upper limit position, the control unit sets the output shaft of the motor 118 in the forward direction (indicated by an arrow R in FIG. 17) based on the detection signal from the position detection sensor. Rotate in the direction shown). Accordingly, the right footrest 10Db starts to tilt from the substantially horizontal posture to the inclined posture by the tilt bolt 126 rotating in the positive direction with respect to the nut 128. At this time, the inclination angle of the right footrest 10Db is determined from the relationship between the thread pitch of the inclination bolt 126 and the rotational speed of the output shaft of the motor 124.

  On the other hand, when the right footrest 10Db starts to descend from the upper limit position toward the lower limit position, the control unit turns the output shaft of the motor 124 in the reverse direction (indicated by the arrow in FIG. 17) based on the detection signal from the position detection sensor. In the direction indicated by S). As a result, the tilt bolt 126 rotates in the opposite direction with respect to the nut 128, and the right footrest 10Db starts tilting from the tilting posture toward the substantially horizontal posture.

  Note that the configuration of a tilt mechanism (not shown) for tilting the left footrest (not shown) is the same as the configuration of the tilt mechanism 116Db described above, and a description thereof will be omitted.

  Therefore, also in the present embodiment, the same effect as in the fourth embodiment can be obtained.

(Embodiment 6)
Next, the configuration of the care chair 2E according to Embodiment 6 will be described with reference to FIGS. 18A and 18B. 18A and 18B are diagrams schematically showing a configuration of a care chair 2E according to Embodiment 6. FIG. For convenience of explanation, in FIG. 18A and FIG. 18B, illustration of the configuration relating to the left footrest is omitted.

  As shown in FIGS. 18A and 18B, in the care chair 2E according to the sixth embodiment, the configuration of the tilt mechanism 116Eb for tilting the right footrest 10Eb is different from that of the fifth embodiment. Specifically, in the fifth embodiment, the tilt bolt 126 is rotated by the motor 124 (see FIG. 17), but in the present embodiment, the rotation of the pulley 66 of the second lifting mechanism 56 is used. The inclined bolt 126 is rotated.

  The tilt mechanism 116Eb includes a pulley side bevel gear 130 and a tilt bolt side bevel gear 132 instead of the motor 124 described in the fifth embodiment. The pulley side bevel gear 130 is fixed to the rotation shaft of the pulley 66 of the second lifting mechanism 56. The inclined bolt side bevel gear 132 is fixed to the lower end portion of the inclined bolt 126 and meshed with the pulley side bevel gear 130.

  As shown in FIG. 8A, from the state where the foot lever 72 is positioned above the right footrest 10Eb, for example, when the caregiver steps on the foot lever 72 with his / her foot, the right footrest 10Eb rises from the lower limit position toward the upper limit position. To start. At this time, as the drive chain 68 rotates between the pair of pulleys 64 and 66, each of the pair of pulleys 64 and 66 rotates. As shown in FIG. 18B, the rotation of the pulley 66 is transmitted to the inclined bolt 126 via the pulley-side bevel gear 130 and the inclined bolt-side bevel gear 132, whereby the inclined bolt 126 is moved in the forward direction (indicated by an arrow R in FIG. 18B). Rotate in the direction shown). As a result, as described in the fifth embodiment, the right footrest 10Eb tilts from the substantially horizontal posture toward the inclined posture as the inclined bolt 126 rotates in the positive direction with respect to the nut (not shown). To start.

  On the other hand, from the state where the foot lever 72 is positioned below the right footrest 10Eb, for example, when the caregiver lifts the foot lever 72 with his / her foot, the right footrest 10Eb starts to descend from the upper limit position toward the lower limit position. At this time, as the drive chain 68 rotates between the pair of pulleys 64 and 66, each of the pair of pulleys 64 and 66 rotates. As shown in FIG. 18B, the rotation of the pulley 66 is transmitted to the inclined bolt 126 via the pulley side bevel gear 130 and the inclined bolt side bevel gear 132, whereby the inclined bolt 126 is moved in the reverse direction (in FIG. Rotate in the direction shown). As a result, as described in the fifth embodiment, the right footrest 10Eb starts to tilt from the tilted posture to the substantially horizontal posture as the tilted bolt 126 rotates in the opposite direction with respect to the nut.

  Note that the configuration of the tilt mechanism (not shown) for tilting the left footrest (not shown) is the same as the configuration of the tilt mechanism 116Eb described above, and therefore the description thereof is omitted.

  Therefore, also in the present embodiment, the same effect as in the fourth embodiment can be obtained.

(Embodiment 7)
[7-1. Composition of care chair]
Next, the configuration of the care chair 2F according to Embodiment 7 will be described with reference to FIGS. 19 and 20. FIG. 19 is a perspective view showing an appearance of a care chair 2F according to the seventh embodiment. FIG. 20 is a diagram for explaining the function of the first elastic member 140a of the care chair 2F according to the seventh embodiment.

  As shown in FIG. 19, in the care chair 2F according to the seventh embodiment, the configurations of the left armrest 12Fa and the right armrest 12Fb are different from those of the first embodiment. Specifically, a connection pin 134 a is formed on the rotating portion 92 b of the support frame 92 of the left armrest 12 Fa, and a connection portion 136 a is formed on the third frame 20 of the main body 6. The connection portion 136a extends in the Z-axis direction, and a connection pin 138a is formed at the upper end portion thereof. A first elastic member 140a is connected between the pair of connection pins 134a and 138a. The first elastic member 140a is configured by a coil spring, and is arranged to be extendable and contractable along the longitudinal direction of the rotating portion 92b of the support frame 92.

  A connecting pin 134b is formed on the rotating portion 82b of the support frame 82 of the right armrest 12Fb, and a connecting portion 136b is formed on the second frame 18 of the main body 6. The connecting portion 136b extends in the Z-axis direction, and a connecting pin 138b is formed at the upper end portion thereof. A second elastic member 140b is connected between the pair of connection pins 134b and 138b. The second elastic member 140b is formed of a coil spring and is arranged to be extendable and contractable along the longitudinal direction of the rotating portion 82b of the support frame 82.

  Hereinafter, the function of the first elastic member 140a will be described. As shown in FIG. 20A, when the left armrest 12Fa is in a substantially vertical posture, the first elastic member 140a has a natural length. As shown in FIG. 20B, when the left armrest 12Fa tilts from a substantially vertical posture to an inclined posture (that is, outward from the main body 6), the first elastic member 140a extends from the natural length. To do. Thereby, the left armrest 12Fa is urged by the first elastic member 140a from the inclined posture to the substantially vertical posture (that is, toward the inside of the main body 6).

  When the cared person (not shown) tilts the upper body to the left with the left armrest 12Fa sandwiched between the left armpit and the left armrest 12Fa, the left armrest 12Fa receives the biasing force of the first elastic member 140a. Tilt from a substantially vertical posture to an inclined posture together with the upper body of the care recipient. Thereby, it can suppress that left armrest 12Fa tilts rapidly from a substantially vertical attitude | position to an inclination attitude | position. Further, when the upper half of the care receiver is returned straight, the left armrest 12Fa can be returned from the inclined posture to the substantially vertical posture by the biasing force of the first elastic member 140a.

  The function of the second elastic member 140b is the same as the function of the first elastic member 140a described above. That is, when the right armrest 12Fb tilts from the substantially vertical posture to the inclined posture, the second elastic member 140b biases the right armrest 12Fb from the inclined posture to the substantially vertical posture.

  In the present embodiment, each of the first elastic member 140a and the second elastic member 140b is configured by a coil spring, but is not limited thereto, and may be configured by, for example, a stretchable rubber.

[7-2. effect]
As described above, the care chair 2F of the present embodiment further biases the left armrest 12Fa toward the inside of the main body 6 when the left armrest 12Fa tilts outward from the main body 6. 1 elastic member 140a and a second elastic member 140b that urges the right armrest 12Fb toward the inside of the main body 6 when the right armrest 12Fb tilts outward from the main body 6.

  According to this, when the upper body of the cared person is tilted to the left side, the left armrest 12Fa can be prevented from abruptly tilting to the outside of the main body 6 due to the biasing force of the first elastic member 140a. . Further, when returning the upper half of the cared person straight, the left armrest 12Fa can be returned to the original substantially vertical posture by the biasing force of the first elastic member 140a.

  Similarly, when the upper body of the cared person is tilted to the right side, the right armrest 12Fb can be prevented from tilting suddenly to the outside of the main body 6 by the biasing force of the second elastic member 140b. Further, when the upper half of the cared person is returned straight, the right armrest 12Fb can be returned to the original substantially vertical posture by the urging force of the second elastic member 140b.

  Further, the left armrest 12Fa has a support frame 92 supported by the main body portion 6 so as to be tiltable. The right armrest 12Fb has a support frame 82 supported by the main body 6 so as to be tiltable. The first elastic member 140 a is configured by a coil spring and is arranged to be extendable along the support frame 92. The second elastic member 140 b is configured by a coil spring and is disposed so as to be extendable and contractable along the support frame 82.

  According to this, space saving of the 1st elastic member 140a and the 2nd elastic member 140b can be achieved.

(Embodiment 8)
[8-1. Composition of care chair]
Next, the configuration of the care chair 2G according to Embodiment 8 will be described with reference to FIG. FIG. 21 is a diagram for explaining the function of the first elastic member 140a of the care chair 2G according to the eighth embodiment.

  As shown in FIG. 21, in the care chair 2G according to the eighth embodiment, the arrangement of the first elastic member 140a and the second elastic member (not shown) is different from that of the seventh embodiment.

  The length of the connecting portion 136Ga is longer than the length of the connecting portion 136a (see FIG. 20) of the seventh embodiment, and the tip thereof is disposed in the vicinity of the connecting pin 134a. Thereby, the 1st elastic member 140a is arrange | positioned so that expansion-contraction is possible along a horizontal direction (X-axis direction).

  Note that the arrangement of the second elastic member 140b is the same as the arrangement of the first elastic member 140a, and a description thereof will be omitted.

[8-2. effect]
As described above, in the care chair 2G of the present embodiment, each of the first elastic member 140a and the second elastic member 140b is configured by a coil spring and is arranged to be extendable and contractable along the horizontal direction. .

  According to this, the amount of expansion / contraction of each of the first elastic member 140a and the second elastic member 140b can be increased.

(Embodiment 9)
[9-1. Composition of care chair]
Next, the configuration of the care chair 2H according to Embodiment 9 will be described with reference to FIG. FIG. 22 is a perspective view showing an appearance of a care chair 2H according to the ninth embodiment.

  As shown in FIG. 22, the care chair 2 </ b> H according to the ninth embodiment includes a pair of auxiliary wheels 142 in addition to the configuration requirements described in the first embodiment. Each of the pair of auxiliary wheels 142 is disposed on the left and right outer sides of the main body 6 and is supported by the main body 6 so as to be movable up and down. The position of the pair of auxiliary wheels 142 in the front-rear direction (Y-axis direction) may be an arbitrary position such as a position corresponding to the center of gravity of the care chair 2H. The ascending / descending operation of the pair of auxiliary wheels 142 is performed manually or automatically. Each of the pair of auxiliary wheels 142 is a fixed caster, for example, and has a larger diameter than the front wheel 28 and the rear wheel 32.

  For example, when a care receiver (not shown) is transferred from a bed (not shown) to the care chair 2H, each of the pair of auxiliary wheels 142 is raised as shown by a two-dot chain line in FIG. Float from the floor. Thereby, since the care chair 2H is moved by the pair of relatively small diameter front wheels 28 and the plurality of rear wheels 32, the moving direction of the care chair 2H can be finely adjusted.

  Further, when the care recipient is moved in a state of being placed on the care chair 2H, as shown by a solid line in FIG. 22, each of the pair of auxiliary wheels 142 is lowered and brought into contact with the floor surface. As a result, the care chair 2H is moved by the pair of relatively small diameter front wheels 28 and the plurality of rear wheels 32 and the pair of relatively large diameter auxiliary wheels 142. Even in this case, the care chair 2H can be moved smoothly.

  The care chair 2H may be used as an electric wheelchair by rotating each of the pair of auxiliary wheels 142 with a motor or the like.

[9-2. effect]
As described above, the care chair 2 </ b> H of the present embodiment is further supported by the main body 6 so as to be able to be raised and lowered, and includes the auxiliary wheel 142 having a larger diameter than the front wheel 28 and the rear wheel 32.

  According to this, the care chair 2H can be moved smoothly.

(Modifications, etc.)
As mentioned above, although this invention was demonstrated based on Embodiment 1-9, this invention is not limited to said Embodiment 1-9.

  For example, the care chair 2 (2A, 2B, 2C, 2D, 2E, 2F, 2G, 2H) links the tilting motion of the right armrest 12b (12Fb) and the lifting motion of the left footrest 10a (10Ca), and Further, an interlocking mechanism that interlocks the tilting operation of the left armrest 12a (12Fa, 12Ga) and the lifting operation of the right footrest 10b (10Cb, 10Db, 10Eb) may be provided.

  In this case, the interlocking mechanism includes, for example, a sensor that detects each tilting motion of the left armrest 12a (12Fa, 12Ga) and the right armrest 12b (12Fb), and a left footrest 10a (10Ca) and a right side based on a detection signal from the sensor. And an actuator for raising and lowering each of the footrests 10b (10Cb, 10Db, 10Eb).

  When the sensor detects the movement of the right armrest 12b (12Fb) from the substantially vertical posture to the inclined posture (or the movement from the inclined posture to the substantially vertical posture), the actuator detects the left footrest based on the detection signal from the sensor. 10a (10Ca) is automatically raised (or lowered). Further, when the sensor detects the movement of the left armrest 12a (12Fa, 12Ga) from the substantially vertical posture to the inclined posture (or the operation from the inclined posture to the substantially vertical posture), the actuator outputs a detection signal from the sensor. Based on this, the right footrest 10b (10Cb, 10Db, 10Eb) is automatically raised (or lowered).

  According to this, the transfer work of the cared person 4 can be performed more efficiently. The interlocking mechanism is not limited to the case of electrically interlocking as described above, and may be mechanically interlocked.

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

2, 2 ', 2A, 2B, 2C, 2D, 2E, 2F, 2G, 2H Care-care chair 4 Cared person 6 Body part 8a, 8Aa Left side seat part 8b, 8Ab Right side seat part 10a, 10Ca Left footrest 10b, 10Cb , 10Db, 10Eb Right footrest 12a, 12Fa, 12Ga Left armrest 12b, 12Fb Right armrest 14a Left backrest 14b Right backrest 28 Front wheel (wheel)
32 Rear wheel
46 first recess 48 second recess 50 toilet 52 toilet seat 52a opening 82 support frame (right support frame)
92 Support frame (left support frame)
98a, 98Aa Left side handle 98b, 98Ab Right side handle 112 Fixed portion 140a First elastic member 140b Second elastic member 142 Auxiliary wheel

Claims (18)

A care chair for a care recipient to sit,
The main body,
Wheels for moving the main body,
A left seat and a right seat, each of which is supported by the main body so as to be independently movable and arranged on the left and right sides,
Each of the main body part is supported so as to be able to move up and down independently, and includes a left footrest and a right footrest arranged on the left and right, respectively.
The left seat has a first support position for supporting the cared person's buttocks with the left footrest positioned above the right footrest, and a first not supporting the cared person's buttocks. Between the unsupported positions of
The right seat has a second support position that supports the buttocks of the cared person in a state where the right footrest is positioned above the left footrest, and a second support position that does not support the buttocks of the cared person. A care chair that is movable between two unsupported positions. The care chair further includes a left armrest and a right armrest that are supported by the main body so as to be independently tiltable and arranged on the left and right, respectively.
The left armrest is tiltable outward from the main body in a state where the right footrest is positioned above the left footrest.
The care chair according to claim 1, wherein the right armrest is tiltable outward from the main body in a state where the left footrest is positioned above the right footrest. The care chair further includes an interlocking mechanism that interlocks the tilting motion of the right armrest and the lifting motion of the left footrest, and interlocks the tilting motion of the left armrest and the lifting motion of the right footrest. Item 3. The care chair according to Item 2. The care chair further includes:
A left handle protruding forward from the left armrest;
The care chair according to claim 2, further comprising a right handle protruding forward from the right armrest. The left armrest supports at least the left axilla of the cared person sitting when tilted outward from the main body,
The care chair according to any one of claims 2 to 4, wherein the right armrest supports at least a right axillary part of the care receiver who is seated when tilted outward from the main body part. The care chair further includes a left backrest portion and a right backrest portion that are rotatably supported by the main body and are arranged on the left and right, respectively.
The care chair according to any one of claims 2 to 5, wherein the left backrest and the right backrest are tilted integrally with the left armrest and the right armrest, respectively. The care chair further includes:
A first elastic member that biases the left armrest toward the inside of the main body when the left armrest tilts outward from the main body;
7. A second elastic member that biases the right armrest toward the inside of the main body when the right armrest tilts outward from the main body. 7. The nursing chair described in 1. The left armrest has a left support frame that is tiltably supported by the main body,
The right armrest has a right support frame that is tiltably supported by the main body,
The first elastic member is composed of a coil spring, and is arranged to be extendable and contractable along the left support frame.
The care chair according to claim 7, wherein the second elastic member is configured by a coil spring and is arranged to be stretchable along the right support frame. The care chair according to claim 7, wherein each of the first elastic member and the second elastic member is configured by a coil spring and is arranged to be extendable and contractable along a horizontal direction. The said care chair is further provided with the fixing | fixed part which fixes the said left side seat part and the said right side seat part to a said 1st support position and a said 2nd support position, respectively. The care chair described. The left seat portion is swung from a substantially horizontal posture to a substantially vertical posture by moving from the first support position to the first non-support position,
The care of any one of claims 1 to 10, wherein the right seat portion turns from a substantially horizontal posture to a substantially vertical posture by moving from the second support position to the second non-support position. Chair. The left side seat slides between the first support position and the first non-support position while maintaining a substantially horizontal posture,
The caregiver according to any one of claims 1 to 10, wherein the right seat portion slides between the second support position and the second non-support position while maintaining a substantially horizontal posture. Chair. The left side seat has a first recess formed at a position facing the right side seat,
The right seat has a second recess formed at a position facing the left seat,
The first concave portion and the second concave portion are formed when the left seat portion and the right seat portion are positioned at the first support position and the second support position, respectively, on a toilet seat of a Western-style toilet. The chair for care according to any one of claims 1 to 12, wherein an opening of the toilet seat is exposed. Each of the left footrest and the right footrest can be moved up and down independently between a lower limit position and an upper limit position,
When the left footrest is positioned at the lower limit position, the left footrest is in a substantially horizontal posture substantially parallel to the horizontal direction, and when the left footrest is positioned at the upper limit position, the left footrest is directed to the horizontal direction and toward the right footrest. It becomes a tilt posture that tilts down,
When the right footrest is positioned at the lower limit position, the right footrest is in a substantially horizontal posture substantially parallel to the horizontal direction, and when the right footrest is positioned at the upper limit position, the right footrest is positioned in the horizontal direction and on the left footrest. The care chair according to any one of claims 1 to 13, wherein the care chair is inclined to be inclined downward. The care chair according to claim 14, wherein each of the left footrest and the right footrest tilts from a substantially horizontal posture to an inclined posture in a state where the left footrest and the right footrest are raised from the lower limit position to the upper limit position. The care chair according to claim 14, wherein each of the left footrest and the right footrest tilts from a substantially horizontal posture to an inclined posture while being positioned at the upper limit position. The care chair according to any one of claims 14 to 16, wherein each of the left footrest and the right footrest is disposed at an angle of 10 ° to 30 ° with respect to the horizontal direction in an inclined posture. . The care chair according to any one of claims 1 to 17, further comprising an auxiliary wheel that is supported by the main body portion so as to be movable up and down and has a diameter larger than that of the wheel.

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