JP2006000377A - Standing/seating assisting chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a standing/seating assisting chair without giving a user a risk of overturning when the user stands up and without applying a heavy burden to the legs and loins of the user. <P>SOLUTION: The standing/seating assisting chair is characterized by an actuating mechanism for moving up a seat part for supporting the buttocks of the user when the user is seated while the horizontal state of the seat part is retained, and a standing assisting mechanism disposed above the actuating mechanism for tilting the seat part in such a way that the front is low and the rear is high. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an upright seating auxiliary chair that assists standing of a seated person, and more particularly, to an upright seating auxiliary chair that does not cause a user to fall down when standing up.

Various care products have been developed and marketed according to the aging society in recent years. As one of the care products, there is an upright seating support chair for assisting an upright movement from a chair of an elderly person or a long-term hospitalized patient whose leg / muscle strength has weakened.
As a conventional technique, a standing seating auxiliary chair as proposed in Patent Document 1 can be shown.
FIG. 9 shows a standing seating auxiliary chair proposed in Patent Document 1.
As shown in FIG. 9, the conventional standing seating auxiliary chair (C) has a seating surface portion (S) and a lower surface of the seating surface portion (S) that support the buttocks when a user of the standing seating assistance chair (C) is seated. It consists of the elastic member (B) arrange | positioned by. When the user tries to stand up, the elastic member (B) raises the rear of the seat surface portion (S) and tilts the seat surface portion (S) downward from the rear toward the front. Thereby, a user's buttocks are pushed forward and upward, and a user's standing operation is assisted.

Japanese Patent Laid-Open No. 11-226056

However, the standing seating auxiliary chair (C) having the above-described structure has the following problems.
In the sitting state, the knee and the waist are in a bent state. Since the conventional standing-sitting auxiliary chair (C) is for urging only the bent state of the waist to the extended state, the waist is pushed out with the knee bent, and the user of the standing-sitting auxiliary chair (C) is physically There was a risk of losing balance and falling when standing up.
Further, in a normal standing operation, the knee is first extended and then the waist is extended. On the other hand, the conventional standing seating auxiliary chair (C) first extends the waist. It was an extra burden on the legs. Therefore, it is unsuitable for a user who has pain in the legs and legs.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a standing seating auxiliary chair that does not have a risk of falling during a standing motion and does not place an excessive burden on the legs and hips.

According to the first aspect of the present invention, there is provided a starting mechanism that moves upward while maintaining a horizontal state of a seat surface portion that supports a user's buttocks at the time of sitting; A stand-up seating auxiliary chair comprising a stand-up assisting mechanism for lowering the front and tilting the rear higher.
The invention according to claim 2 is characterized in that the starting mechanism includes a first base part, a second base part connected to the first base part via a first link mechanism, and the first base part. The standing assist mechanism comprises a bellows-shaped first airbag that is disposed between the second base parts and connects the central part of the first base part and the central part of the second base part. Is disposed between the second link mechanism connecting the second base portion and the seat surface portion, the second base portion and the seat surface portion, and the rear surface of the two base portions. And a second bellows-shaped airbag that connects the rear surface of the seating surface portion, and the first link mechanism and the first airbag are configured to move the second base portion upward with respect to the first base portion. The second link mechanism and the second airbag may be moved in parallel so that the seat surface portion is inclined so that the rear is higher than the front. A standing sitting auxiliary chair according to claim 1, wherein.

According to a third aspect of the present invention, the first link mechanism includes a pair of first rod bodies rotatably attached to the first base portion side portion, and rotations of upper ends of the pair of first rod bodies. And a pair of second rods that are rotatably connected to the second base, and a third rod that connects the connecting portions of the first rod and the second rod. The standing seating auxiliary chair according to claim 2, wherein
According to a fourth aspect of the present invention, the first link mechanism is rotatably connected to the central portion of the side portion of the first base portion and is rotatably connected to the first half portion of the side portion of the second base portion. And a sixth rod body rotatably connected to the first half portion of the first base portion and rotatably connected to the center portion of the side portion of the second base portion. The fifth rod body and the sixth rod body intersect each other in a substantially X shape, and are joined to each other so as to be rotatable at the intersecting portion, from the first base portion side central portion to the side rear half portion, A first sliding groove is formed to allow the connecting portion between the fifth rod and the first base portion to slide, and the sixth base portion extends from the second base portion side central portion to the side rear half portion. The upright landing according to claim 2, wherein a second sliding groove is formed to allow a connecting portion between the rod body and the second base portion to slide. An auxiliary chair.

According to a fifth aspect of the present invention, the second link mechanism is rotatably connected to a seventh rod body rotatably connected to the front half portion of the second base portion and the upper end portion of the seventh rod body. The standing seating auxiliary chair according to any one of claims 2 to 4, further comprising an eighth rod body rotatably connected to the front half portion of the side surface portion of the seat surface portion.
According to a sixth aspect of the present invention, the second link mechanism is slidably connected to a frame material disposed on both side edges of the second base portion and a slide groove formed in the frame material. , Comprising a ninth rod body rotatably connected to the front half portion of the seat surface portion, and a connection portion between the fifth rod body and the first base portion is rotatably connected to the vicinity of the seat surface front end portion. The stand-up seating auxiliary chair according to any one of claims 2 to 4, characterized in that:

  The invention according to claim 7 is characterized in that the second link mechanism is rotatably connected to the front half portion of the second base portion side and is connected to the rear end portion of the seat surface portion, and the seat surface portion is moved forward. It comprises a flat plate-like first seat surface portion and a flat plate-like second seat surface portion located at the rear, and the first seat surface portion front end portion and the second base portion front end portion are rotatably connected, The standing seating auxiliary chair according to claim 2, wherein the rear end portion of the first seat surface portion and the front end portion of the second seat surface portion are connected to each other via a hinge so as to be rotatable.

The invention according to claim 8 further includes a backrest plate extending vertically upward from the second base portion, and an armrest extending from the seat surface portion and disposed above the seat surface portion. A stand-up seating auxiliary chair according to any one of claims 1 to 7.
The invention according to claim 9 includes a flat pedestal portion disposed below the first base portion and a rod body that is erected from the rear end portion of the pedestal portion and formed in a substantially U-shape. The standing seating auxiliary chair according to any one of claims 1 to 8, further comprising: a grip portion and a moving means including a rolling element disposed on a lower surface of the pedestal portion.
According to a tenth aspect of the present invention, there is provided a backrest plate extending vertically upward from the second base portion, an armrest extending from the seat surface portion and disposed above the seat surface portion, and the first A flat pedestal disposed below the pedestal, a handle erected from a rear end of the pedestal, a bar formed in a substantially U shape, and a lower surface of the pedestal 8. The standing seat according to claim 1, further comprising a moving means including a rolling element provided, wherein a linear guide extending from a back surface of the backrest plate slides on the handle portion. It is an auxiliary chair.
The invention according to claim 11 comprises a first back plate standing up from the rear end of the second base portion and a second back plate standing up from the rear end of the seat surface portion, and the first back plate. The upper portion is formed thicker and the lower portion is thinned, and the second backrest plate is fitted into the thinly formed portion of the first backrest plate before the standing assist mechanism is actuated. 7. The standing seating auxiliary chair according to any one of 7 above.

According to the first aspect of the present invention, the knee is extended by the starting mechanism, and the waist is extended by the standing assist mechanism. Therefore, since the standing motion is assisted without pressing only the waist, the balance of the body is not lost and the body does not fall over during the standing motion.
Further, since the knee extension and the waist extension, which are normal standing movements, are performed, the standing movements can be assisted without forcing an excessive burden on the legs and hips during the standing movements.
According to the second to sixth aspects of the present invention, since the first airbag is used as the starting mechanism and the second airbag is used as the standing-up assist mechanism, the airbag absorbs the impact at the time of sitting, and the seating operation of the user Can assist.

  According to the seventh aspect of the present invention, since the seat surface portion is bent with respect to the first seat surface portion so that the inclination of the second seat surface portion is loosened, the user's waist is not pushed more strongly than necessary. , Preventing the user from tipping forward.

According to invention of Claim 8, since a backrest board and an armrest are provided, a comfortable seating state can be obtained. Further, since the backrest plate does not tilt during the stand-up assisting operation, the backrest plate does not hinder the standing-up operation. Furthermore, since the armrest is tilted as the seat surface portion is tilted, the user can apply the force of the arm to the armrest, and can more easily stand up.
According to the ninth aspect of the present invention, the standing seating auxiliary chair can be easily moved by the moving means.
According to the invention described in claim 10, the operation of the starting mechanism is supported by the linear guide extending from the backrest plate, and a more stable starting operation can be performed.
According to the eleventh aspect of the present invention, since the second backrest plate moves together with the seating surface portion when the standing assist mechanism is operated, the second backrest plate is supported from the user's waist to the buttocks, so that the user can be prevented from falling backward. . Moreover, since the first backrest plate is in a stationary state regardless of the operation of the standing assist mechanism, it does not hinder the user's standing operation.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a standing seating auxiliary chair according to the present invention will be described with reference to the drawings. FIG. 1 is a view showing a first embodiment of a standing seating auxiliary chair according to the present invention. FIG. 1 (a) shows a state in which the standing seating auxiliary chair is folded, FIG. 1 (b) shows a state in which the starting mechanism of the standing seating auxiliary chair is operated, and FIG. 1 (c) shows standing up of the standing seating auxiliary chair. The state which actuated the auxiliary mechanism is shown.
In the state shown in FIG. 1C, the standing seating auxiliary chair (1) according to the present invention includes a starting mechanism (2) that constitutes the lower part of the standing seating auxiliary chair (1) and a standing assistance mechanism (3 that constitutes the upper part). ).

The starting mechanism (2) includes a first base portion (21) and a second base portion (22) disposed above the first base portion (21) in the state shown in FIG. The first link mechanism (23) connecting the first base part (21) and the second base part (22), and between the first base part (21) and the second base part (22) And a first airbag (24) connected to the substantially central surface of both base parts (21, 22).
On the upper surface of the first base portion (21), side frame (211) arranged in a pair of left and right standing auxiliary seats (1) in the width direction is disposed.
The second base portion (22) is a plate-like member and is accommodated between the pair of side frames (211) when the standing seating auxiliary chair (1) is folded (see FIG. 1 (a)). Is done.
The first link mechanism (23) is a link mechanism arranged in a pair of left and right standing seating auxiliary chairs (1) in the width direction, and each side frame (211) and each side part of the second base part (22) Connect each.

The first link mechanism (23) includes a pair of first rods (231) disposed before and after the side frame (211) of the first base (21), and the state shown in FIG. A pair of second rods (232) connected to the front and back of the side surfaces of the first rod (231) and the second base (22), the first rod (231) and the first rod (231). It consists of the 3rd rod (233) which connects the connection parts of 2 rods (232).
The first base (21) and the first rod (231), the first rod (231) and the second rod (232), the second rod (232) and the second base (22) Each is connected rotatably. The pair of first rods (231) are formed to have the same length, and the pair of second rods (232) are also formed to have the same length.

The first airbag (24) has a bellows shape and can be expanded and contracted vertically. In the example shown in FIG. 1, each step portion of the first airbag (24) is formed to have the same diameter, but the central step portion may be formed to have a smaller diameter than the upper and lower step portions. Good. By reducing the diameter of the central step, it is possible to reduce the amount of air inflow required to extend the first airbag (24) and increase the extension speed of the first airbag (24). It becomes.
The 1st airbag (24) has connected the approximate center part of the 1st base part (21) upper surface and the 2nd base part (22) lower surface. The first airbag (24) is provided with an air inlet for allowing air to flow inside and an air outlet for discharging air to the outside (not shown). The air inflow port is connected to an air supply means such as an air pump provided outside via a tube (not shown).
When air is supplied into the first airbag (24) by the air supply means, the first airbag (24) extends upward by the air pressure, and pushes up the second base portion (22) upward. The connecting lengths of the first rod body (231) and the second rod body (232) arranged in a pair of front and rear connecting the first base portion (21) and the second base portion (22) are the same length. Therefore, at this time, the second base portion (22) moves upward while maintaining the horizontal state.

The standing assist mechanism (3) includes a second link mechanism (33) that connects the second base portion (22) and a seat surface portion (4) that supports the user's buttocks when seated, and a second base portion ( 22) and a second airbag (34) disposed between the seat surface portion (4).
The seat surface portion (4) has a protruding portion (41) formed in a rectangular frame shape on the lower surface thereof. The upper surface side of the second base portion (22) is housed in a protruding portion (41) formed in a rectangular frame shape in a state where the standing seating auxiliary chair (1) is folded.
The second link mechanism (33) is a link mechanism that is disposed in a pair of left and right standing seating auxiliary chairs (1) in the width direction, and includes a side surface portion of the second base portion (22) and a lower surface of the seat surface portion (4). Connect each of the side frames of the protrusion (41).

The second link mechanism (33) includes a seventh rod body (331) connected to a front portion of the second base portion (22) from the center in a side view, that is, the front half portion, and the state shown in FIG. And an eighth rod (332) connected to the upper end of the seventh rod (331). The eighth rod (332) is connected to the front side portion, that is, the front half portion of the projecting portion side portion of the lower surface of the seat surface portion (4), as viewed from the side.
The seventh rod (331) and the side frame (221) of the second base (22), the seventh rod (331) and the eighth rod (332), the eighth rod (332) and the seat surface portion Each of the connecting portions with (4) is rotatable.

The second airbag (34) has a bellows shape and is formed with a smaller diameter than the first airbag (24). By forming the second airbag (34) to be smaller in diameter than the first airbag (24), it is possible to increase the extension speed of the second airbag (34) and to assist the user in standing up. It becomes possible to carry out more efficiently. For the purpose of increasing the stability of the seat surface portion (4), the second airbag (34) may be formed to have the same diameter as the first airbag (24). In the example shown in FIG. 1, each step portion of the second airbag (34) is formed with the same diameter, but the central step portion may be formed with a smaller diameter than the upper and lower step portions. By reducing the diameter of the central step, it is possible to reduce the inflow of air required to extend the second airbag (34) and increase the extension speed of the second airbag (34). It becomes.
The lower end surface of the second airbag (34) is the second base portion (22) with respect to the width direction of the upright seating auxiliary chair (1), the center of the upper surface of the second base portion (22), and the front and back direction of the upright seating auxiliary chair (1). The two base parts (22) are connected to positions on the upper surface rear side. The upper end surface of the second airbag (34) has a seat surface portion (4) with respect to the standing seat assisting chair (1) width direction, a seat surface portion (4) center of the lower surface, and a standing seat assisting chair (1) longitudinal direction. ) It is connected to a position slightly behind the lower surface. Therefore, the second airbag (34) can be expanded and contracted in the vertical direction, and can be bent back and forth in the standing seating auxiliary chair (1).
The second airbag (34) is provided with an air inlet for allowing air to flow into the interior and an air outlet for discharging air to the outside (not shown). The air inflow port is connected to an air supply means such as an air pump provided outside via a tube (not shown).
When air is supplied into the second airbag (34) by the air supply means, the second airbag (34) extends upward by the air pressure. Since the second airbag (34) is attached to the front side of the standing seating auxiliary chair (1) as described above, the second airbag (34) is inclined so that the rear side of the seat surface portion (4) is high and the front side is low. Moreover, since the 2nd link mechanism (33) is connected in the front half part of the side part of the 2nd base part (22) and the seating surface part (4), the seating surface part (4) front-end part vicinity is used as the axis | shaft ( 4) Stabilize the movement of the rotational movement.

The standing seating auxiliary chair (1) according to the first embodiment having the above-described structure is first folded as shown in FIG. 1 (a) to form a single flat plate. In this state, the second base part (22) is accommodated between the pair of side frames (211) provided on the upper surface of the first base part (21), and the second base part (22) The upper surface side is covered with a frame-shaped protruding portion (41) formed on the lower surface of the seat surface portion (4).
Between the 1st base part (21) and the 2nd base part (22), the 1st airbag (24) is arranged in the state where it was folded up. Moreover, the 2nd airbag (34) is arrange | positioned in the state folded between the 2nd base part (22) and the seat surface part (4).

As shown in FIG. 1B, when air is supplied into the first airbag (24), the first airbag (24) extends upward. At this time, the first link mechanism (23) supports the vertical extension of the first airbag (24), and the second base (22) connected to the first airbag (24) maintains a horizontal state. Assist the movement to translate upwards.
In this manner, first, the second base portion (22) is lifted upward while maintaining the horizontal state by the operation of the first airbag (24), so that even elderly people whose reflexes are weakened impair body balance. The standing operation can be started without any trouble.

Next, when air is supplied into the second airbag (34), the second airbag (34) extends as shown in FIG. 1 (c). At this time, since the second airbag (34) is positioned on the rear side of the standing seating auxiliary chair (1), the rear side of the seat surface portion (4) is lifted high, and the seat surface portion (4) is lowered downward. Inclined to. At this time, since the second link mechanism (33) connects the second base portion (22) and the seat surface portion (4) on the front side of the standing seating auxiliary chair (1), the vicinity of the front end portion of the seat surface portion (4) Rotating motion of the seat surface part (4) about the axis is performed stably.
During the rotational movement of the seat surface portion (4), the seat surface portion (4) supports the user's buttocks of the standing seating auxiliary chair (1) and lifts upward, so that the user's standing motion is assisted. become.

FIG. 2 shows a second embodiment of the standing seating auxiliary chair (1) of the present invention. The second embodiment is the same as the first embodiment except for the structure of the first link mechanism and the second link mechanism of the first embodiment. FIG. 2 shows a state in which air is sealed in the first airbag (24) and the second airbag (34).
The first link mechanism (23) of the standing seating auxiliary chair (1) according to the second embodiment is rotatable with the central part of the side frame (211) disposed on the upper surface of the first base part (21). The second base part (22) is connected to the front end of the side surface of the second base part (22) so as to be rotatable, and the front end part of the side frame (211) is rotatably connected to the second base part ( 22) and a sixth rod body (235) rotatably connected to the center of the side surface.
The fifth rod body (234) and the sixth rod body (235) intersect with each other in an approximately X shape, and are connected to each other by pins at the intersecting portion. Further, the fifth rod (234) and the sixth rod (235) are formed to have the same length.
A first sliding groove (212) is formed from the center part of the side frame (211) disposed on the upper surface of the first base part (21) to the rear, and air is enclosed in the first airbag (24). In this state, the joint (236) between the fifth rod (234) and the side plate (211) is located at the front end of the first sliding groove (212).
Similarly, in the state in which the second sliding groove (222) is formed from the center of the side surface of the second base portion (22) to the rear and the air is sealed in the first airbag (24), the sixth rod ( 235) and the joint portion (237) of the second base portion (22) are located at the front end portion of the second sliding groove (222).

In such a structure, before the air is supplied into the first airbag (24), the joint portions (236, 237) are located at the rear end of the sliding grooves (212, 222), and the fifth rod ( 234) and the sixth rod (235), the first link mechanism (23) is in a folded state.
When air is supplied into the first airbag (24), the joints (236, 237) slide in the sliding grooves (212, 222), respectively, and the front ends of the sliding grooves (212, 222) Move to. During this process, the first airbag (24) extends upward. Since the fifth rod body (234) and the sixth rod body (235) are formed to have the same length, the second base portion (22) pushed upward by the first airbag (24) maintains a horizontal state. Move upwards in parallel.

The second link mechanism (33) includes a pair of frame members (335) disposed on both side edges of the rear upper surface of the ninth rod body (333) and the second base portion (22). The lower end of the ninth rod (333) is connected to the sliding groove (336) formed in the frame member (335), and the lower end node of the ninth rod (333) slides in the sliding groove (336). To do. The upper end of the ninth rod (333) is rotatably joined to the side of the protrusion (41) formed on the lower surface of the seat surface (4).
As described above, the joint portion (237) is disposed in the sliding groove (222), and the lower end of the ninth rod body (333) is before air is supplied into the first airbag (24). Is located at the rear end of the sliding groove (336), and moves toward the front end of the sliding groove (336) when air is supplied into the first airbag (24). Along with the sliding movement of the lower end of the ninth rod (333), the ninth rod (333) pushes the seat surface (4) upward.
The front end of the seat surface portion (4) is rotatably connected to a joint portion (238) between the fifth rod body (234) and the second base portion (22), and is rotated upward about the joint portion (238). Move.
Thus, even if the link structure of the starting mechanism (2) and the standing assist mechanism (3) is formed, the same operation as in the first embodiment can be obtained.
In the structure as described above, the number of nodes of the first link mechanism (23) and the second link mechanism (33) is reduced, and the structural robustness is excellent.

FIG. 3 shows a third embodiment of the standing seating auxiliary chair (1) of the present invention. In FIG. 3, the starting mechanism (2) of the third embodiment is the starting mechanism (2) having the same structure as the starting mechanism (2) of the standing seating auxiliary chair (1) of the second embodiment. However, the starting mechanism (2) shown in the first embodiment may be used.
The third embodiment differs from the first embodiment and the second embodiment in the structure of the second link mechanism (33) and the seating surface portion (4). Others can be the same as the structure of the first embodiment or the second embodiment.

  The 2nd link mechanism (33) used for a 3rd embodiment consists of a seat surface part support member (334). The seat surface portion support member (334) is connected to the pair of rod bodies extending from both side surfaces of the second base portion (22) and the pair of rod bodies, and along the rear end edge of the lower surface of the seat surface portion (4). And is substantially U-shaped. The seat surface portion support member (334) is rotatably connected to the first half portion of the second base portion (22).

  The seat surface portion (4) is formed of a pair of thin plate-shaped seat surface members, and the seat surface portion (4) disposed in front of the standing seating auxiliary chair (1) is disposed in the first seat surface portion (42) and rearward. The seat surface portion (4) is a second seat surface portion (43). The rear end of the first seat surface portion (42) and the front end of the second seat surface portion (43) are pivotally connected by a hinge (44). Further, the front end of the first seat surface portion (42) is rotatably connected to the front end of the second base portion (22). The second seat surface portion (43) is formed to have a length substantially equal to a rod extending from the side of the second base portion (22) of the seat surface portion support member (334), and the seat surface portion support member (334) is erected. The rod extending in the width direction of the auxiliary chair (1) is disposed along the rear edge of the lower surface of the second seat surface (43).

In the standing seating auxiliary chair (1) having the above structure, when air is supplied to the second airbag (34), the second airbag (34) extends. As the second airbag (34) extends, the seat surface portion (4) rotates upward about the front end of the first seat surface portion (42). Since the seat surface portion support member (334) is connected to the rear edge of the second seat surface portion (43), the seat surface portion support member (334) and the second base portion ( 22) and pivots upward about the connecting portion.
Since the rod of the seat surface portion supporting member (334) extending from the side of the second base portion (22) does not extend, the seat surface portion (4) is hinged (44) when the seat surface portion (4) rotates upward by a certain amount. ) Will bend through. That is, as shown in FIG. 3, the seat surface portion (4) is bent so that the inclination of the second seat surface portion (43) becomes gentler than the inclination of the first seat surface portion (42).
Thus, when the seating surface portion (4) is bendable, when the standing assist mechanism (3) is operated, a force is not applied forward more than necessary, and the standing seating assisting chair (1) is used. The person is prevented from falling forward.

FIG. 4 is a diagram showing a usage pattern of the standing seating auxiliary chair (1) of the present invention. In addition, in the example shown in FIG. 4, 1st Embodiment of the standing seating auxiliary chair (1) of this invention is used. 4A shows a state before supplying air to the first airbag (24), and FIG. 4B shows a state after supplying air to the first airbag (24). (C) shows the state after supplying air to the second airbag (34).
The state shown in FIG. 4A is a state in which a user is seated on a chair, and the standing seating auxiliary chair (1) according to the present invention is installed on the seat surface of the chair.
When air is supplied to the first airbag (24), the seat surface portion (4) pushes up the collar portion upward, and puts the user in an intermediate state between the seating state and the standing state (see FIG. 4B). When air is supplied to the second airbag (34), the rear end portion of the seat surface portion (4) is further pushed upward, and the user is completely raised.
During the above-described series of standing motions, the user extends the knee upwards by the starting mechanism (2), and then the hips are pushed forward by the standing assisting mechanism (3), so that the waist is stretched and is in the standing state. It is said. In this way, the bent state of the knee is set to the extended state, the bent state of the waist is set to the extended state, and the standing motion is assisted, so that the user can perform the standing motion without losing balance of the body. It becomes possible.
Furthermore, first, the start mechanism (2) is operated, so that the user can recognize the operation of the standing seating auxiliary chair (1). At this stage, even if the user cannot sufficiently adjust the balance of the body to the operation of the standing seating auxiliary chair (1), the starting mechanism (2) only pushes the seat surface part (4) upward. There is no risk that the user will fall. The user can adjust the balance of his / her body to be in a standing posture during the operation of the starting mechanism (2), and then the standing motion is assisted by the standing assist mechanism (3). It is a safe standing / sitting assistance chair (1) for elderly people with weak nerves.
In addition, the effect of 1st Embodiment is acquired similarly, even if it uses the standing seat auxiliary chair (1) of 2nd Embodiment.
When the standing seating auxiliary chair (1) of the third embodiment is used, the same effect as that of the first embodiment can be obtained, and the seat surface portion (4) is bent. The risk of falling the user forward is reduced.

The standing seating auxiliary chair (1) according to the present invention is not limited to a usage pattern placed on an existing chair as shown in FIG. 4, and a usage pattern as a seating chair as shown in FIG. 5 is also possible. is there.
FIG. 5 shows a usage form of the standing seating auxiliary chair (1) as a seating chair, FIG. 5 (a) shows a state before air is supplied to the first airbag (24), and FIG. FIG. 5B shows a state after the air is supplied to the first airbag (24), and FIG. 5C shows a state after the air is supplied to the second airbag (34).
In the example shown in FIG. 5, the standing seating auxiliary chair (1) according to the first embodiment is used, but the standing seating auxiliary chair (1) according to the third embodiment is also seated as shown below. It can be used as a chair as well.
As shown in FIG. 5, the standing seating auxiliary chair (1) is placed on the floor (see FIG. 5 (a)). Here, when air is supplied to the first airbag (24) of the standing seating auxiliary chair (1), as shown in FIG. 5 (b), the seat surface portion (4) moves upward while maintaining a horizontal state. To do. And if it raises to the height of a user's knee, operation | movement of a starting mechanism (2) will stop. Thereafter, air is supplied to the second airbag (34), and the user's waist and knees are extended (see FIG. 5 (c)).
Thus, since the starting surface (4) raises the seat surface part (4) while maintaining the horizontal state, even when it is used as a seat chair in which the knee and waist are bent deeply, it can stand up suitably. It can assist the operation.

In the above description, the basic structure of the standing seating auxiliary chair (1) of the present invention is shown, but in addition to this, various modifications can be adopted.
FIG. 6 shows a form in which an armrest and a backrest plate are provided on the standing seating auxiliary chair (1). 6A shows a state in which air is supplied to the first airbag (24), and FIG. 6B shows a state in which air is supplied to the second airbag (34). In addition, in FIG. 6, although the standing seating auxiliary chair (1) which concerns on 3rd Embodiment is shown, the form which provides an armrest and a backrest board is employable also about 1st and 2nd embodiment. is there.
As shown in FIG. 6, the backrest plate (5) is erected upward from the rear end of the second base portion (22) at a right angle. The armrest (6) is disposed on a pair of support members (61) that are erected at a right angle from the upper edge of the seat surface (4). In the illustrated example, the armrest (6) extends from the second seat surface portion (43).
In such a structure, the backrest plate (5) and the armrest (6) move upward in accordance with the operation of the starting mechanism (2). When the standing assist mechanism (3) is operated, the armrest (6) is inclined as the seat surface portion (4) is inclined. On the other hand, the second base portion (22) extends back at a substantially right angle from the second base portion (22) in order to maintain the horizontal state even when the standing assist mechanism (3) operates as described above. The plate (5) is not inclined and is kept upright.
Thereby, the user can perform the standing motion while the elbow is attached to the armrest (6) during the standing motion, and the arm force can be used for the standing motion. Since the inclination angle of the armrest (6) is equal to the inclination angle of the seat surface portion (4), the force from the arm is transmitted to the seat surface portion (4) at a right angle, and the force from the arm directly contributes to the standing motion. .
On the other hand, the backrest plate (5) does not incline regardless of the operation of the standing assist mechanism (3), and thus does not hinder the user's standing operation.
The standing seating auxiliary chair (1) provided with the backrest plate (5) and the armrest (6) as shown in FIG. 6 may be placed on an existing chair or placed directly on the floor surface. May be.

In addition to the modification example shown in FIG. 6, a modification form as shown in FIG. 7 can also be adopted.
The modification shown in FIG. 7 is provided with a moving means (7) for simplifying the movement of the standing seating auxiliary chair (1) in addition to the structure shown in FIG.
The moving means (7) has a flat pedestal (71). The standing seating auxiliary chair (1) is fixed to the upper surface of the pedestal part (71). On the lower surface of the pedestal portion (71), a rolling element (72) that enables rolling on the floor surface is disposed. A roller with a stopper or the like is preferably used for the rolling element (72). A grip portion (73) is erected from the rear end of the upper surface of the pedestal portion (71).
The handle portion (73) is a substantially U-shaped member comprising a pair of rod bodies standing upright from the upper surface of the pedestal portion (71) and a rod body connecting the upper ends of the rod bodies. By holding the handle portion (73) and pushing the moving means (7) from the rear toward the front, the standing seating auxiliary chair (1) can be easily moved.
The part of the stroke length of the starting mechanism (2) of the standing seating auxiliary chair (1) from the lower end of the handle part (71) is perpendicular to the pedestal part (73). The linear guide (53) provided near the lower end of the back of the backrest plate (5) slides on this portion. Thereby, the upward movement by the starting mechanism (2) becomes more stable.
According to such a structure, the standing seating auxiliary chair (1) functions as a seating chair that is easy to move and can perform the standing assistance operation more stably.

  In the example described above, the air supply means for supplying air to the first airbag (24) and the second airbag (34) is disposed at an arbitrary position. For example, it may be installed on a chair for arranging the standing seating auxiliary chair (1), or may be installed on a backrest board (5).

FIG. 8 shows a further modification. FIG. 8A shows a state before air is supplied to the second airbag (34), and FIG. 8B shows a state after air is supplied to the second airbag (34). . In the modified example shown in FIG. 6, the backrest plate (5) is in a stationary state regardless of the operation of the standing assistance mechanism (3). However, in the example shown in FIG. ) Can be divided vertically, and a part of the backrest plate (5) moves in accordance with the operation of the standing assist mechanism (3). The structure other than the backrest plate (5) is the same as the example shown in FIG.
The backrest plate (5) includes a first backrest plate (51) standing from the rear end of the second base portion (22) and a second backrest plate (52) standing from the rear end of the seat surface portion (4). Consists of
The first back plate (51) has a substantially thin plate shape having a different thickness, and the lower portion is formed thinner than the upper portion. Before the standing assist mechanism (3) is actuated (see FIG. 8A), the second backrest plate (52) fits into the thinly formed portion of the first backrest plate (51), and the user's The first backrest plate (51) and the second backrest plate (52) are flush with each other on the surface in contact with the back.
When the standing assist mechanism (3) is activated and air is supplied into the second airbag (34), the seat surface portion (4) is inclined with the rear side raised. Along with the tilting motion of the seat surface portion (4), the second backrest plate (52) extending from the rear end of the seat surface portion (4) moves together with the seat surface portion (4) (see FIG. 8B).
On the other hand, since the first back plate (51) is connected to the second base portion (22) and not to the seat surface portion (4), the first back plate (51) is stationary regardless of the operation of the standing assistance mechanism (3). ing.
Accordingly, the second backrest plate (52) is supported from the waist of the user's back to the buttocks during the standing assist mechanism (3) operation, and the user can be prevented from falling backward. . On the other hand, since the first backrest plate (1) is in a stationary state during the operation of the standing assist mechanism (3), the backrest plate (5) having a height higher than necessary is not inclined and is used. Does not interfere with the person's standing motion.

  In the above, although the form which assists a user's standing motion was demonstrated, the standing seating assistance chair (1) of this invention also assists a user's seating motion. In this invention, the 1st airbag (24) and the 2nd airbag (34) are used for the starting mechanism (2) and the standing assistance mechanism (3). Therefore, when the user is seated, the first airbag (24) and the second airbag (34) absorb the impact at the time of sitting and slowly lower the seat surface portion downward. Therefore, there is no risk that the user may be injured by striking the buttocks or hips when sitting.

In the above example, the first link mechanism (23) connects the side edge of the first base part (21) and the side edge of the second base part (22), but the present invention is limited to this. Instead, the front and rear edges of the first base part (21) may be connected. Even in this way, the second base part (22) can move up and down while maintaining a horizontal state with respect to the first base part (21).
As described above, various examples and modification examples have been described, but the standing seat assisting chair (1) can be appropriately configured by combining them.

  The present invention is preferably applied to an upright seating assisting chair for assisting an elderly person with standing up reflexes.

It is a figure which shows 1st Embodiment of the standing seating auxiliary chair of this invention. (A) shows a state where the standing seating auxiliary chair is folded, (b) shows a state where air is supplied to the first airbag, and (c) shows a state where air is supplied to the second airbag. FIG. It is a figure which shows 2nd Embodiment of the standing seating auxiliary chair of this invention. It is a figure which shows 3rd Embodiment of the standing seating auxiliary chair of this invention. It is a figure which shows the usage type of the standing seating auxiliary chair of this invention. (A) shows the state before supplying air to the first airbag, (b) shows the state after supplying air to the first airbag, and (c) shows the state where air is supplied to the second airbag. The state after being supplied is shown. It is a figure which shows the usage type as a seat chair of a standing seat auxiliary chair (1). (A) shows the state before the air is supplied to the first airbag, (b) shows the state after the air is supplied to the first airbag, and (c) shows the air in the second airbag. The state after being supplied is shown. It is a figure which shows the form which provided the armrest and the backrest board in the standing seating auxiliary chair of this invention. (A) shows a state where air is supplied to the first airbag, and (b) shows a state where air is supplied to the second airbag. It is a figure which shows the form which provided the moving means for making the movement of a standing seating auxiliary chair simple in addition to the structure shown in FIG. It is a figure which shows the change form of the backrest board shown in FIG. (A) shows a state where air is supplied to the first airbag, and (b) shows a state where air is supplied to the second airbag. It is a figure which shows the conventional standing seating auxiliary chair.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Standing seat auxiliary chair 2 ... Starting mechanism 21 ... 1st base part 22 ... 2nd base part 23 ... 1st link mechanism 231 ... First rod body 232 ... second rod body 233 ... third rod body 234 ... fifth rod body 235 ... sixth rod body 24 ... first air bag 3 ... ··· Standing assist mechanism 33 ··· Second link mechanism 331 ··· Seventh rod body 332 ··· eighth rod body 333 ··· ninth rod body 34 ··· second airbag 4 ··· ... Seat surface part 42 ... First seat part 43 ... Second seat part 44 ... Hinge 5 ... Backrest plate 51 ... First backrest plate 52 ... Second back plate 53 ... Linear guide 6 ... Armrest 7 ... Moving means 71 ... Base part 72 ... Rolling body 73 ... Handle Part

Claims (11)

A starting mechanism that moves upward while maintaining the horizontal state of the seat surface portion that supports the user's buttocks when sitting;
A stand-up seating auxiliary chair, which is provided above the start-up mechanism and further comprises a stand-up assisting mechanism that tilts the seat surface portion lower in the front and higher in the rear. The starting mechanism is
A first base,
A second base part connected to the first base part via a first link mechanism;
A bellows-shaped first airbag disposed between the first base portion and the second base portion and connecting the central portion of the first base portion and the central portion of the second base portion. Consists of
The standing assist mechanism is
A second link mechanism connecting the second base portion and the seat surface portion;
The second base portion and the seat surface portion, and a bellows-shaped second airbag connecting the rear surface of the two base portions and the rear surface of the seat surface portion;
The first link mechanism and the first airbag translate the second base portion upward relative to the first base portion;
The standing seating auxiliary chair according to claim 1, wherein the second link mechanism and the second airbag incline the seat surface portion so that the rear side is higher than the front side. The first link mechanism is
A pair of first rods rotatably attached to the side of the first base part;
A pair of second rods rotatably connected to the upper ends of each of the pair of first rods and rotatably connected to the second base,
The standing seating auxiliary chair according to claim 2, comprising a third rod body that connects the connecting portions of the first rod body and the second rod body. The first link mechanism is
A fifth rod body rotatably connected to the side central portion of the first base portion and rotatably connected to the front half portion of the second base portion,
The first base part includes a sixth rod body rotatably connected to the first half of the side part and rotatably connected to a central part of the side part of the second base part,
The fifth rod body and the sixth rod body intersect in a substantially X shape, and are joined to each other so as to be rotatable at the intersection.
A first sliding groove is formed which allows the connecting portion between the fifth rod body and the first base portion to slide from the first base portion side central portion to the side rear half portion,
A second sliding groove that allows the connecting portion between the sixth rod body and the second base portion to slide is formed from the central portion of the second base portion to the rear half of the side portion. The standing seating auxiliary chair according to claim 2, characterized in that: The second link mechanism is
A seventh rod body rotatably connected to the front half portion of the second base portion;
5. The standing body according to claim 2, comprising an eighth rod body rotatably connected to the upper end portion of the seventh rod body and rotatably connected to a front half portion of the side of the seat surface portion. Seating assistance chair. The second link mechanism is
A frame material disposed on both side edges of the second base part;
The slidably connected to the sliding groove formed in the frame material, and comprising a ninth rod body rotatably connected to the front half portion of the side surface portion,
The standing seating auxiliary chair according to any one of claims 2 to 4, wherein a connecting portion between the fifth rod body and the first base portion is rotatably connected to the vicinity of the front end portion of the seating surface. The second link mechanism is
In the first half of the second base part side front half part and rotatably connected, and connected to the seat surface part rear end,
The seat surface portion is composed of a flat plate-like first seat surface portion located on the front side and a flat plate-like second seat surface portion located on the rear side.
The front end of the first seat part and the front end of the second base part are rotatably connected,
The standing seating auxiliary chair according to claim 2, wherein the rear end portion of the first seat surface portion and the front end portion of the second seat surface portion are pivotably connected to each other via a hinge. A backrest plate extending vertically upward from the rear end of the second base portion;
The standing seating auxiliary chair according to any one of claims 1 to 7, further comprising an armrest extending from the seat surface portion and disposed above the seat surface portion. A flat pedestal disposed below the first base,
A handle portion that is erected from the rear end portion of the pedestal portion, and is formed of a rod formed in a substantially U shape,
The standing seating auxiliary chair according to any one of claims 1 to 8, further comprising moving means made of rolling elements disposed on the lower surface of the pedestal portion. A backrest plate extending vertically upward from the second base portion;
An armrest extending from the seat surface portion and disposed above the seat surface portion;
A flat pedestal disposed below the first base,
A handle portion that is erected from the rear end portion of the pedestal portion, and is formed of a rod formed in a substantially U shape,
Moving means comprising rolling elements disposed on the lower surface of the pedestal part,
The standing seating auxiliary chair according to any one of claims 1 to 7, wherein a linear guide extending from a back surface of the backrest plate slides on the handle portion. A first back plate erected from the rear end of the second base part;
A second backrest plate erected from the rear end of the seat surface,
The first back plate is formed to be thick on the top and thin on the bottom,
The standing seating auxiliary chair according to any one of claims 1 to 7, wherein the second backrest plate is fitted into a thin portion of the first backrest plate before the standing assist mechanism is actuated.

Images