CN210019167U - Auxiliary device - Google Patents

Abstract

The utility model provides an auxiliary device, even in the quilt person who is in the posture of sitting a seat does not basically have the upper half body under the circumstances of freedom reliably and stably keep the upper half body. For example, a side frame part (20) which can swing in the vertical direction and can change the rake angle is arranged on the side of the seat part (1a) of the toilet bowl (1). The arm sections (30) are held by the side frame sections (20). In the use position, the arm part (30) is positioned at the front part of the upper half of the body of the person (P) to be assisted sitting on the seat part (1a) to prevent the person from tilting forward. Preferably, the arm part (30) is set to a retreating position retreating from the front face of the person (P) to be assisted. A pair of left and right side frame parts (20) are provided, and the upper end parts of the side frame parts can be connected by a rear frame part (40).

Description

Auxiliary device

Technical Field

The present invention relates to an assisting device for holding an upper body of an assisted person who is in a sitting posture in a stable state.

Background

When an assisted person such as a disabled person or an elderly person cannot maintain a sitting posture by himself/herself while sitting on a toilet stool (a flush toilet), for example, it is desirable to stabilize the upper body of the assisted person. Therefore, patent documents 1 and 2 disclose devices in which an auxiliary tool for stabilizing the upper body is provided around the toilet bowl.

The assist tool described in patent document 1 includes a pair of left and right guide tubes that are positioned on the left and right sides of a person to be assisted sitting on a toilet and extend in the front-rear direction, and a curved grip rod that connects the front end portions of the guide tubes. Patent document 1 also discloses a belt for restricting the waist of an assisted person who sits on a toilet and leans against a back board.

The apparatus described in patent document 2 discloses the following: a pair of left and right armrests (armrests) extending in the front-rear direction and positioned on the left and right sides of a person to be assisted sitting on a toilet are provided, and the armrests are configured to be capable of swinging in the up-down direction, thereby selectively obtaining a use position extending in the front-rear direction or a retracted position extending in the up-down direction. Patent document 2 also discloses a belt for regulating the upper body of an assisted person who sits on a toilet and leans against a backrest plate.

Documents of the prior art

Patent document 1: japanese examined patent publication (Kokoku) No. 6-33919

Patent document 2: japanese patent laid-open No. 2001 and 1699968

SUMMERY OF THE UTILITY MODEL

Problem to be solved by utility model

In the case where the devices described in the above patent documents do not use a belt for restricting the person to be assisted, it is assumed that the person to be assisted is a person to be assisted that can grip an assisting tool or the like, that is, a person to be assisted that can exert a force on the wrist or the fingertip. However, some persons who are assisted cannot grasp an assisting tool or the like cannot maintain the sitting posture with their own force, and even if an assisting tool that can be grasped is present around the persons, the assisting tool cannot be actually used.

Here, in the device of patent document 2, for a person to be assisted who cannot exert force on his/her wrist or finger tip, a belt is used to fix the upper body of the person to be assisted to the backboard. However, the upper body is restrained by the belt, and there are cases in which it is difficult to adopt the belt because the person to be assisted suffers from a great deal of mental pain and also causes ethical problems.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an assisting device capable of reliably and stably holding an upper body without restraint by a strap even when an assisted person sitting on a seat cannot maintain a sitting posture by himself/herself.

In order to achieve the above object, the present invention adopts the following solution. Namely, the apparatus is provided with: a base portion disposed behind a seat portion on which an assisted person sits; a side frame portion which is swingably attached to the base portion via a swing coupling mechanism, which can change a forward tilt angle, and which is positioned on a side of an upper body of an assisted person sitting on the seat portion to prevent the assisted person from rolling; and an arm portion which is held by the side frame portion and receives the front surface portion of the upper body of the person to be assisted seated on the seat portion in a state of extending in the horizontal direction to prevent the person to be assisted from tilting forward.

According to the above-described solution, when the person to be assisted sitting on the seat portion cannot maintain the sitting posture by himself/herself, the upper body that leans forward can be reliably supported by the arm portion, and the upper body that leans sideways can be reliably supported by the side frame portions, so that the upper body of the person to be assisted can be reliably and stably held. Of course, since the belt-based restriction is not performed, the person to be assisted is not mentally painful, and there is no ethical problem.

When the side frame portions are tilted forward from the basic posture state, the assisted person is supported by the arm portions while bending forward. The person to be assisted bends forward, and therefore, the person to be assisted has a posture preferable particularly in promoting defecation, and the person to be assisted can easily clean the buttocks and the like after defecation because a large space is formed behind the upper body of the person to be assisted.

A preferred embodiment on the premise of the above solution is as follows.

The pair of left and right side frame portions may be provided so as to be positioned on left and right sides of an upper body of an assisted person seated on the seat portion. In this case, the roll in the left-right direction can be prevented.

The rear end portions of the pair of left and right side frame portions can be connected to each other by a rear frame portion located behind the person to be assisted seated on the seat portion to prevent the person to be assisted from leaning backward. In this case, the rearward frame portion can prevent the person to be assisted from falling backward. Further, it is preferable that the pair of left and right side frame portions and the rear frame portion are integrated to improve the overall rigidity and stably maintain the posture of the person to be assisted. In addition, only by swinging either one of the left and right side frame portions, the other side frame portion can be swung in conjunction.

The arm portion may be provided only on one or both of the pair of left and right side frame portions. In this case, when the arm portion is provided only in one side frame portion, the number of arm portions is preferably set to one of the minimum number, which simplifies the structure and reduces the cost. In addition, when the arm portion is provided only in one of the left and right side frame portions, the posture of the person to be assisted can be stably maintained by extending the length of the arm portion. On the other hand, when the arm portions are provided on both the left and right pair of side frame portions, the length of each arm portion can be shortened, and the operability is good.

The arm portion is selectively capable of being positioned at a use position extending in a horizontal direction and a retreat position retreating from the front side of the assisted person sitting on the seat portion. In this case, the space formed by the position at the retracted position is also preferable because the person to be assisted can be easily assisted, or the person can be easily separated from or seated on the seat section.

The position of the arm portion in the front-rear direction can be changed. In this case, it is preferable to set the arm at an appropriate position according to the body type of the person to be assisted.

The swing coupling mechanism may include a lock mechanism that restricts at least a forward-downward swing of the side frame portions. In this case, the lock mechanism cannot be swung in the front-down direction in which the restrained posture is easily felt without releasing the lock mechanism, and the lock mechanism can be reliably prevented from being moved in the front-down direction beyond necessity.

The lock mechanism can unlock and allow the side frame portions to swing in the forward and upward direction. In this case, the lock mechanism can be easily swung in the direction of releasing from the restrained posture without operating the lock mechanism, and is preferable in terms of the feeling of releasing the restraint. Further, even when the assisted person is inclined too far forward and thus the assisted person is difficult to maintain a forward stooping posture, the assisted person can quickly return to a desired and preferable forward inclination angle.

The center of swing of the side frame portions that can be swung by the swing coupling mechanism can be set at a position near the waist of the person seated on the seat portion. In this case, it is preferable that the center of body swing of the person to be assisted sitting on the seat portion when bending forward is substantially coincident with the center of swing of the side frame portions, and the person to be assisted can bend forward harmoniously and easily.

An arm lock mechanism may be provided to lock the arm portion at the retracted position in an immovable state. In this case, the arm portion can be reliably positioned at the retracted position. This is preferable because, for example, when the person to be assisted is sitting or unseating on the toilet seat, the arm portion is prevented from unexpectedly moving to the use position and interfering with the movement of the person to be assisted or the person to be assisted. Further, it is also preferable that the assistor or the assistee effectively use the arm portion locked at the retracted position as the armrest.

The utility model has the following effects.

According to the present invention, even when the person to be assisted sitting on the seat portion cannot maintain the sitting posture by himself/herself, the upper body can be stably held by the arm portion and the side frame portion without being restricted by the belt, and thus the sitting posture of the person to be assisted can be maintained. Further, by tilting the side frame portions forward, it is possible to maintain a posture preferable for the person to be assisted to stoop forward and promote defecation, and the person to be assisted can easily clean the buttocks of the person to be assisted after defecation.

Drawings

Fig. 1 is a perspective view showing an embodiment of the present invention, in a state where an arm portion is located at a retracted position extending in a vertical direction.

Fig. 2 is a perspective view showing a state where the arm portion is located at a use position extending in the horizontal direction from the state of fig. 1.

Fig. 3 is a perspective view showing a state in which the side frame portions are tilted forward from the state of fig. 2.

Fig. 4 is a front view showing a state where the auxiliary device in the state shown in fig. 2 is provided with respect to the toilet stool.

Fig. 5 is a side view showing a state where the auxiliary device in the state shown in fig. 2 is provided with respect to the toilet stool.

Fig. 6 is a side view showing a swing link mechanism portion.

Fig. 7 is an enlarged view of a main portion of fig. 6.

Fig. 8 is a main portion perspective view showing a state where the arm portion is set to the retracted position at the front-rear direction intermediate position.

Fig. 9 is a main part perspective view showing a state where the arm portion is set to the use position at the front position.

Fig. 10 is a main portion perspective view showing a state in which the arm portion is set to the use position at the rear position.

Fig. 11 is a front view corresponding to fig. 4, showing a state where the upper body of the person to be assisted sitting on the toilet bowl is stably held.

Fig. 12 is a side view of the toilet bowl in which the upper body of the person to be assisted sitting on the toilet bowl is stably held, and the assisting apparatus is in a forward tilted state.

Fig. 13 is a perspective view showing a second embodiment of the present invention.

Fig. 14 is a perspective view showing a third embodiment of the present invention.

Fig. 15 shows a fourth embodiment of the present invention, and is a side view corresponding to fig. 6.

Fig. 16 is an enlarged view of a main portion of fig. 15.

Fig. 17 is a perspective view showing an attachment portion of the arm portion shown in fig. 15.

Fig. 18 is a sectional view corresponding to the line X18-X18 in fig. 15, and corresponds to the arm portion being located at the use position.

Fig. 19 is a sectional view of the arm portion retracted position from the state of fig. 18.

In the figure:

p-assisted person, K-assisted device, KB-assisted device (fig. 13), R-lock mechanism, 1-toilet, 1a seat portion, 10-base portion, 10B-base portion (fig. 14), 11-vertical rod-like member, 12-horizontal rod-like member, 13-placement plate portion, 20-side frame portion, 20B-side frame portion (fig. 14), 20C-side frame portion (fig. 15), 21-upper frame portion, 22-lower frame portion, 23-cushioning material (fig. 13), 30-arm portion, 30C-arm portion (fig. 15-19), 31-main portion, 31 a-plate portion, 31B-other end portion, 31C-small diameter portion (fig. 17), 31 d-large diameter portion (fig. 17), 32-cushioning material, 32B-cushioning material (fig. 13), 33-holding bracket, 34-notch groove, 35-notch portion, 35 a-notch end surface, 36 a-notch end surface, 37-guide pin, 38-cover member, 40-rear frame portion, 41-cushion material, 41B-cushion material (fig. 13), 50-swing connecting mechanism, 51-connecting bracket, 52-connecting portion (swing center), 53-stopper portion, 54-stopper portion, 55-locking plate, 56-locking hole, 57-guide member, 58-locking pin, 58 a-inclined surface, 58C-locking pin (fig. 15, fig. 16), 59-spring, 60-pin member, 61-operating member, 62-connecting wire, 75-operating member (fig. 15, fig. 16), 76-guide pin (fig. 15, fig. 16), 77-guide hole (fig. 15, fig. 16), 80-arm locking mechanism (fig. 18, fig. 19), 81-guide member (fig. 18, fig. 19), 82-locking pin (fig. 18, fig. 19), 82 a-front end portion (fig. 18, fig. 19), 83-spring (fig. 18, fig. 19), 84-through hole (fig. 18, 19), 85-operation member (fig. 18, 19).

Detailed Description

Fig. 1 to 3 show an example of the auxiliary device K of the present invention, and fig. 4 and 5 show a state in which the auxiliary device K is disposed on the toilet bowl 1. In fig. 1 to 5, the assist device K of the present invention roughly includes a base portion 10, a pair of left and right side frame portions 20, a pair of left and right arm portions 30, a rear frame portion 40, and a swing coupling mechanism 50.

The base part 10 has a pair of left and right vertical rod members 11 extending in the vertical direction, a horizontal rod member 12 extending in the left and right direction and connecting upper end parts of the pair of left and right vertical rod members, and a placement plate part 13 connected to a lower end of the vertical rod member 11, and is formed in a gate shape as a whole. The rear part of the toilet bowl 1 is disposed in a space below the pair of right and left vertical rod members 11, which is the horizontal rod member 12 (see fig. 4 and 5). The base part 10 is provided with a floor-mounted type that does not affect the structure (flush valve, tank) of the toilet bowl 1. The base portion 10 (the plate portion 13) may be fixed to the toilet bowl 1 in advance, or may be fixed to the floor surface in advance.

The side frame portions 20 are provided in a pair on the left and right sides and formed by bending a pipe material. Each side frame portion 20 includes an upper frame portion 21 extending in the front-rear direction, and a lower frame portion 22 extending rearward after extending downward from a front end of the upper frame portion 21. As will be described later, the rear end portion of the lower frame portion 22 is attached to the vertical rod member 11 via a swing coupling mechanism 50 so as to be swingable with respect to the vertical rod member 11.

In the pair of left and right side frame portions 20, rear end portions of the upper frame portion 21 are connected to each other by a rear frame portion 40 extending in the left-right direction in a horizontal state. In the embodiment, the side frame portion 20 and the rear frame portion 40 are integrally formed of the same pipe material. The left and right pair of side frame portions 20 are connected by the rear frame portion 40, so that the rigidity of the entire structure is increased, and by swinging one side frame portion 20, the other side frame portion 20 is also swung in conjunction with this. A tubular cushion material 41 is fitted around the outer periphery of the rear frame portion 40.

The swing coupling mechanism 50 will be described with reference to fig. 6 and 7. First, the swing coupling mechanism 50 includes a coupling bracket 51 fixed to the vertical rod member 11 of the base portion 10. The side frame portions 20 (the rear end portion of the lower frame portion 22) are coupled to the coupling brackets 51 so as to be swingable in the vertical direction via coupling portions 52. The coupling portion 52 is formed of an appropriate mechanism, which may be formed of, for example, a threaded coupling pin and a nut screwed thereto.

A pair of upper and lower plate-shaped stopper portions 53 and 54 are integrally formed on the connecting bracket 51. The stoppers 53 and 54 are set to form an angle of 45 degrees around the coupling portion 52. The side frame portion 20 can change its forward lowering angle (forward tilting angle) by swinging about the connection portion 52. However, the rear end of the lower frame portion 22 abuts on the upper and lower stopper portions 53 and 54, and thereby the swing exceeding the stopper portions 53 and 54 is restricted. Further, in a state where the lower frame portion 22 abuts against the lower stopper portion 53, the upper frame portion 21 is in a basic posture state extending in the front-rear direction in a horizontal state.

In the present embodiment, only one lock mechanism R for restricting the swing of the side frame portion 20 is provided for the side frame portion 20. As shown in fig. 6, the lock mechanism R includes a plate-shaped lock plate 55 integrally formed with the coupling bracket 51. The lock plate 55 is formed in an arc shape centering on the coupling portion 52, and rear end portions of the upper and lower stoppers 53 and 54 are also coupled to each other. The lock plate 55 has a plurality of locking holes 56 formed at 5-degree intervals in the circumferential direction thereof.

A lock pin 58 is slidably held in a rear end portion of the lower frame portion 22 of the side frame portion 20 via a cylindrical guide member 57. The lock pin 58 is biased in a direction protruding from the rear end surface of the lower frame portion 22 by a spring 59 disposed in the guide member 57, and is capable of being fitted into the locking hole 56 of the lock plate 55.

As shown in fig. 7, a surface of the tip end portion of the lock pin 58 facing the lower stopper portion 53 is an inclined surface 58 a. Thus, in a state where the lock pin 58 is inserted into the locking hole 56, the side frame portion 20 is restricted (locked) from swinging counterclockwise in fig. 6 and 7, that is, swinging in a direction in which the forward tilt angle increases.

On the other hand, the side frame portion 20 is not locked in the counterclockwise swing in fig. 6 and 7, that is, the swing in the direction in which the forward tilt angle becomes smaller. That is, when a predetermined or more operating force is applied to the side frame portion 20 in the direction in which the forward tilt angle decreases, the lock pin 58 is disengaged from the locking hole 56 by the inclined surface 58a, and the swing in the direction in which the forward tilt angle decreases is permitted.

An operation member 61 is swingably held via a pin member 60 at a portion of the lower frame portion 22 extending in the vertical direction. A part of the operating member 61 is exposed to the outside from the front side of the lower frame portion 22, and the other part extends within the lower frame portion 22. The operating member 61 is connected to the lock pin 58 via a connecting line 62 provided in the lower frame portion 22.

For example, when the operating member 61 is pressed from the outside, the lock pin 58 is displaced in a direction to come out of the locking hole 56 against the biasing force of the spring 59 via the connecting wire 62, and the lock is released.

Next, the arm 30 will be described with reference to fig. 8 to 10. First, the arm portion 30 has a main body portion 31 formed in an L shape by machining a pipe material, for example. As described below, the one end portion 31a of the body portion 31 is attached to the side frame portion 20 so as to be swingable with respect to (the upper frame portion 21 of) the side frame portion 20. The other end 31b of the body 31 is covered with a cylindrical cushion material 32.

The arm portion 30 selectively takes a use position (see fig. 2 to 5, 6, 9, and 10) where the cushion material 32 (the other end portion 31b of the body portion 31) extends in the horizontal direction and a retracted position (see fig. 1 and 8) where the tip end portion thereof faces upward, in accordance with the swinging movement thereof.

The attachment structure of the arm portion 30 to the side frame portion 20 is as follows. First, the holding bracket 33 is fixed to (the upper frame portion 21 of) the side frame portion 20. The upper portion of the holding bracket 33 is covered with a cover member 38 (see fig. 6, for example) made of synthetic resin, and fig. 8 to 10 are in a state where the cover member 38 is removed. The holding bracket 33 is formed in a cylindrical shape as a whole, and a part of the circumferential direction thereof is cut by a linear notch groove 34 extending in the front-rear direction. Further, notches 35 and 36 are formed at each end of the holding bracket 33 so as to be continuous with the notch groove 34 and cut by about 90 degrees in the circumferential direction. The notch end faces of the notches 35 and 36 are denoted by reference numerals 35a and 36 a.

One end 31a of the body 31 is rotatably and slidably inserted into the holding bracket 33 in the front-rear direction. Further, a guide pin 37 is integrally formed on the one end 31a of the body 31 so as to protrude toward the outer peripheral surface thereof. The guide pin 37 is sized to be slidable in the notch groove 34.

In the state of fig. 8 where the guide pin 37 is positioned in the notch groove 34, the one end 31a of the main body 31 is restricted from rotating relative to the holding bracket 33. That is, the arm 30 is positioned at the retracted position and the swing is restricted.

When the arm portion 30 is displaced forward from the state shown in fig. 8, the guide pin 37 reaches the notch portion 35 on the front side. From this state, the arm 30 can be swung toward the use position, which is shown in fig. 9. The guide pin 37 is brought into contact with the notch end surface 35a of the notch 35, thereby restricting further swinging of the arm 30 from the use position.

When the arm portion 30 is displaced rearward from the state shown in fig. 8, the guide pin 37 reaches the notch portion 36 on the rear side. From this state, the arm 30 can be swung toward the use position, and fig. 10 shows the state in the use position. The guide pin 37 is brought into contact with the notch end face 36a of the notch 36, thereby restricting further swinging of the arm 30 from the use position.

Further, the (one end portion 31a of the) arm portion 30 is restricted from being displaced further forward from the position shown in fig. 9 and further displaced backward from the position shown in fig. 10 by a stopper portion (not shown). The stopper portion can be configured by, for example, forming a pair of front and rear stopper portions in advance (for example, integrally forming a stopper pin in advance) so as to sandwich the holding bracket 33 from the front-rear direction with respect to the outer peripheral surface of (the one end portion 31a of) the arm portion 30. In this case, when the arm portion 30 is displaced forward from the state of fig. 9, the rear convex portion abuts against the rear end surface of the holding bracket 33 to restrict the displacement. Similarly, when the arm portion 30 is displaced further rearward from the state of fig. 10, the front convex portion abuts on the front end surface of the holding bracket 33 to restrict the displacement.

The displacement of the arm portion 30 in the forward or rearward direction by a predetermined amount or more can be regulated by an appropriate method other than the above, for example, by forming the notch portions 35 and 36 in a groove shape in the circumferential direction continuing from the respective ends of the notch groove 34 and bringing the guide pin 37 into contact with the respective ends of the groove shape, thereby regulating the displacement of the arm portion 30 in the forward or rearward direction by a predetermined amount or more.

The auxiliary device K having the above structure is disposed in the toilet bowl 1 as shown in fig. 4 and 5. Fig. 11 and 12 show a state in which the person P to be assisted sits on the seat 1a of the toilet bowl 1.

First, the base part 10 is located at the rear part of the toilet 1, the vertical rod member 11 thereof is located at the side of the rear part of the toilet 1, and the rear frame part 40 is located above the rear part of the toilet 1.

Next, a method of using the auxiliary device K provided to the toilet bowl 1 will be described. First, in the state before use, the arm 30 is located at the retracted position, and the front of the toilet bowl 1 is largely opened. Then, the side frame portion 20 is in a forward tilting or basic posture state (for example, a state shown in fig. 1 and 2). In this state, the person P to be assisted obtains assistance of the assistor and sits on the seat portion 1a of the toilet bowl 1.

When the person P is seated on the seat 1a, the arm portions 30 are located at the use position. Since (the cushioning material 32 of) the arm portion 30 is located at a position near the front of the upper body of the person P to be assisted (see fig. 11), the arm portion 30 supports the person P to be assisted when the upper body of the person P is about to lean forward, thereby preventing the person P to be assisted from leaning forward.

When the upper body of the person P seated on the seat 1a tries to fall backward, the upper body is supported by the rear frame portion 40, and the upper body is prevented from falling backward. The left and right pair of side frame portions 20 prevents the assisted person P sitting on the seat 1a from rolling.

In order to promote defecation (particularly, defecation), the person P to be assisted is preferably in a state of largely bending forward. At this time, the assistant operator may operate the operation member 61 to unlock the lock mechanism R and tilt the side frame portion 20 (and the arm portion 30 and the rear frame portion 40 integrated therewith) forward to a desired tilt angle. After the desired forward tilt angle is achieved, the operation of the operation member 61 is released, and the swing of the side frame portion 20 is restricted at that position.

Fig. 12 shows a state in which the side frame portions 20 are tilted forward to 20 degrees left and right from the basic posture state. The person P to be assisted is supported by the arm 30 in a state of bending forward. The person P to be assisted bends forward to have a posture preferable particularly in promoting defecation, and a large space is formed behind the upper body of the person P to be assisted, so that the person P can easily clean the buttocks and the like after defecation.

The front-rear position of the arm 30 can be determined according to the body shape of the person P to be assisted. That is, when the person to be assisted P is large (when the chest is thick), the arm 30 may be set to the front position, and the distance between (the cushion material 31 of) the arm 30 and (the cushion material 41 of) the rear frame portion 40 may be increased. Conversely, when the body size of the person P to be assisted is small, the arm 30 may be positioned rearward.

The swing of the arm 30 toward the retracted position at the use position is not locked, and the assistor or the assistee P having a free arm can smoothly position the arm 30 at the retracted position. In particular, when the person P can use the arm, it is preferable to smoothly swing the arm 30 to the retracted position according to the intention of the person P, and to prevent or suppress the feeling of restriction from being felt by the person P.

When the side frame portion 20 is tilted forward as shown in fig. 12, the person P to be assisted leans on the rear frame portion 40 according to his or her intention, and the lock of the lock mechanism R (the action of the inclined surface 58a of the lock pin 58) is automatically released, and the side frame portion 20 can be moved in the direction of reducing the forward tilt angle, and can be returned to the basic posture state shown in fig. 5. It is also preferable that the forward tilt angle of the side frame portions 20 be easily reduced based on the meaning of the person P to be assisted, and the feeling of restriction of the person P to be assisted can be prevented or suppressed. Further, even when the assisted person P is inclined too far forward and thus it is difficult for the assisted person P to maintain a forward stooping posture, the assisted person P can quickly return to a desired and preferable forward inclination angle.

After the defecation is finished, the side frame portion 20 is in a basic posture state (for example, a state shown in fig. 2) not tilting forward, and the arm portion 30 is located at the retreat position (for example, a state shown in fig. 1). Thereafter, the person P is assisted by the assistor and leaves the toilet 1.

Fig. 13 shows a second embodiment of the present invention, and the same components as those in the above-described embodiment are denoted by the same reference numerals and their description is omitted (this is the same also after the third embodiment described below). In the assisting apparatus KB of the present embodiment, the cushion 32B (corresponding to the cushion 32) provided in the arm portion 30 has a flat surface (rectangular surface in the embodiment) having a large area as a surface facing the person P to be assisted. Similarly, the cushion material 41B (corresponding to the cushion material 41) provided in the rear arm portion 40 is also formed in the same shape as the cushion material 32B. In the present embodiment, a cushion material 23B having the same shape as the cushion material 32B is also attached to the inner surface side of the side frame portion 20.

Fig. 14 shows a third embodiment of the present invention. In the present embodiment, the base portion 10B (corresponding to the base portion 10) has a plate shape extending in the vertical direction. The rear end of the coupling bracket 51 of the swing coupling mechanism 50 is fixed to the plate surface of the base portion 10B by welding or the like. The base portion 10B has a plurality of attachment holes 10 a. The base portion 10B is fixed to a wall surface located behind the toilet bowl by a fastener such as a bolt inserted into the mounting hole 10 a.

The side frame portion 20B (corresponding to the side frame portion 20) is long in the front-rear direction. Further, as in the above-described embodiment, the rear end portion of the lower frame portion 22 is coupled to the coupling bracket 51 via the coupling portion 52 so as to be swingable in the vertical direction with respect to the coupling bracket 51. The rear end of the upper frame portion 21 extends substantially parallel to the rear end of the lower frame portion 22, and the rear end thereof can abut against the plate surface of the base portion 10B. Fig. 14 shows a state in which the rear end of the upper frame portion 21 abuts against the plate surface of the base portion 10B, and this abutting state is a basic posture state extending in the front-rear direction in a horizontal state. The swing coupling mechanism 50 is configured with a lock mechanism R (not shown in fig. 14) in the same manner as in the above-described embodiment. Therefore, by unlocking the lock mechanism R by operating the operating member 61, the side frame portion 20B can be tilted forward at a desired forward tilt angle with the connecting portion 52 as the swing center. Further, the side frame portion 20B tilted forward can be swung toward the basic posture state without separately performing an operation of releasing the lock of the lock mechanism R.

The upper frame portion 21 and the lower frame portion 22 are coupled to each other at a position slightly forward of the coupling portion 52 by a coupling arm portion 24 extending in the vertical direction, thereby sufficiently securing the rigidity of the side frame portions 20B.

In the present embodiment, the base portion 10B can be made extremely small and simple in structure. Fig. 14 shows the side frame portion 20B disposed on the right side of the toilet bowl, and the side frame portion disposed on the left side of the toilet bowl is configured to have a bilaterally symmetrical structure to the structure shown in fig. 14.

Fig. 15 to 19 show a fourth embodiment of the present invention. In the present embodiment, the lock mechanism RC (corresponding to the lock mechanism R) that locks the swing of the side frame portion 20C (corresponding to the side frame portion 20) also locks in the direction in which the side frame portion 20C swings upward forward. That is, as shown in fig. 15 and 16, the lock mechanism RC is configured such that the lock pin 58C (corresponding to the lock pin 58) does not have the inclined surface 58a (see fig. 7). Thus, when the lock pin 58C is fitted (locked) in the locking hole 56, the side frame portion 20C is restricted from swinging in the front-down direction and also restricted from swinging in the front-up direction.

In the present embodiment, the operation member 75 (corresponding to the operation member 61) for unlocking the lock mechanism RC is of a slide type moving in the vertical direction. That is, the operation member 75 includes a tube portion 75a that is slidably fitted to a portion extending in the vertical direction in the side frame portion 20C, and an operation portion 75b that is integrally formed with the tube portion 75 a. The guide pin 76 formed integrally with the tube portion 75a is slidably fitted into a guide hole 77 formed in the side frame portion 20C and extending short in the vertical direction. One end of the connecting wire 62 is engaged with the guide pin 76. Thus, the operation portion 75b is operated upward from the locked state of the side frame portion 20C shown in fig. 15, thereby releasing the lock.

In the present embodiment, the movement of the arm portion 30C in the front-rear direction is restricted. This is explained with reference to fig. 17, and fig. 17 shows a state where the cover member 38 and the cushioning material 23 are removed. In the present embodiment, the holding bracket 33 has a left-right halved structure (see fig. 18 and 19), and the holding bracket 33 is coupled by the fixing member 74 (see fig. 15 and 17) made of a bolt or a nut while (the upper frame portion 21 of) the main body side frame portion 20C is sandwiched from the left and right. The holding bracket 33 and the cushioning material 23 are fixed to the side frame portion 20C by the fixing member 90 made of a bolt and a nut (the bolt of the fixing member 90 does not penetrate the holding bracket 33 and the side frame portion 20C).

First, in (one end 31a of) the body portion 31 of the arm portion 30C, a portion which is swingably fitted to the holding bracket 33 is formed as a small diameter portion 31C, and on the other hand, both axial end portions of the small diameter portion 31C are formed as stepped portions 31 d. The pair of stepped portions 31d abuts on the holding bracket 33 to regulate the movement of the arm portion 30C in the front-rear direction. A pair of guide pins 37 fixed to the body 31 are provided with a gap in the longitudinal direction. The pair of guide pins 37 is formed by, for example, bolts, and sandwiches the holding bracket 33 from the longitudinal direction thereof. This further firmly restricts the movement of the arm portion 30C in the front-rear direction with respect to the holding bracket 33 (i.e., the side frame portion 20C) as the fixing member (particularly, firmly restricts the movement of the arm portion 30C in the front-rear direction in a state of swinging from the retracted position to the use position).

In the present embodiment, the arm lock mechanism 80 is provided for restricting the swing of the arm portion 30C (corresponding to the arm portion 30) located at the retracted position to be in the stationary state. The arm lock mechanism 80 will be described in detail with reference to fig. 18 and 19. First, the cylindrical guide member 81 is fixed and held to (the one end 31a of) the main body 31. The guide member 81 extends in the radial direction of the body portion 31, and both ends thereof open to the outside of the body portion 31.

The guide member 81 is slidably fitted with and holds a lock pin 82. The lock pin 82 is biased by a spring 83 in a direction in which a tip end portion 82a protrudes outward from one end side of the guide member 81.

On the other hand, the tip end portion 82a of the lock pin 82 can be fitted into the notch groove 34 of the holding bracket 33 as a fixed member. The positional relationship between the tip portion 82a of the lock pin 82 and the notch groove 34 is such that the tip portion 82a of the lock pin 82 is fitted into the notch groove 34 when the arm portion 30C is at the retracted position. The state in which the tip portion 82a of the lock pin 82 is fitted in the notch groove 34 is locked in the state in which the arm portion 30C is located at the retracted position (corresponding to fig. 19).

In order to unlock the arm portion 30C, the operation member 85 is held by the holding bracket 33. That is, the operating member 85 is slidably fitted in the notch groove 34, and one end (upper end) thereof penetrates through the through hole 84 formed in the cover member 38 covering the upper surface thereof and projects upward (see also fig. 15 and 17). The operating member 85 is restricted from being removed upward by the cover member 38.

In the locked state in which the distal end portion 82a of the lock pin 82 is fitted in the notch groove 34, by pressing the operating member 85 downward, the distal end portion 82a of the lock pin 82 can be pulled out from the notch groove 34, and the arm portion 30C can be swung toward the use position. Fig. 18 shows the positional relationship of the locking pin 82 with the notch groove 34 in the use position.

As described above, the arm portion 30C is locked at the retracted position by the arm lock mechanism 80 and maintains the posture state of the retracted position. The arm portion 30C locked at the retracted position is in a posture extending in the vertical direction with the distal end portion thereof directed upward. Therefore, for example, when the person to be assisted is going to sit or leave the seat with respect to the toilet, the arm portion 30C that is in the stationary state in the posture state extending in the up-down direction can be suitably used as the armrest by the person to be assisted or the person to be assisted.

The embodiments have been described above, but the present invention is not limited to the embodiments, and can be modified as appropriate within the scope of the claims. The arm portion 30 may be configured to swing (swing in a horizontal plane) about an axis extending in the vertical direction, and to change the position between the use position and the retracted position. It is preferable that the arm 30(30C) located at the retracted position takes a posture state extending in the vertical direction or a posture state extending in the horizontal direction toward the front and outer sides of the seat, for example, and locks the arm 30(30C) at the retracted position, in order that the assistor or the person to be assisted can use the arm 30(30C) located at the retracted position as the armrest. The arm portion 30(30C) located at the use position is restricted from swinging downward or forward when receiving a load from the person to be assisted, and can be also locked by, for example, the arm lock mechanism 80 instead of the stopper mechanism (for example, constituted by the guide pin 37 and the cutout end surfaces 35a, 36 a) (particularly, automatic locking that automatically locks when located at the use position is preferable). The arm portion 30 may be provided only on one side frame portion 20 of the pair of left and right side frame portions 20. The arm 30 may be fixed and always located at the use position.

Instead of providing the pair of left and right side frame portions 20 (the same applies to 20B and 20C), only one of the left and right side frame portions may be provided. The side frame portion 20 (the same applies to the side frame portions 20B and 20C) and the rear frame portion 40 can have an appropriate structure, and can be configured to have a surface (formed in a planar shape), for example. When the forming surface is formed, the forming surface may be formed of only a plate material, or may be formed of a combination of a plate material and a pipe material. As the plate material to be used, a metal plate, a plastic plate (particularly, a fiber-reinforced plastic plate), or a porous plate may be used.

The device having the seat part to which the present invention is applied is not limited to the toilet bowl, and includes, for example, a suitable device such as a stationary chair for rest and a stationary chair located at an ornamental position. The swing coupling mechanism 50 is not limited to the structure of the embodiment and can have an appropriate structure, and similarly, the lock mechanism R and the arm lock mechanism 80 are not limited to the structure of the embodiment and can have an appropriate structure. Of course, the object of the present invention is not limited to the described object, and actually implicitly includes the object of providing preference or expressing as an advantage.

Industrial applicability of the invention

The utility model is suitable for disabled persons and old people who cannot maintain sitting postures.

Claims (10)

1. An assist device is characterized by comprising:

a base portion disposed behind a seat portion on which an assisted person sits;

a side frame portion which is swingably attached to the base portion via a swing coupling mechanism, which can change a forward tilt angle, and which is positioned on a side of an upper body of an assisted person sitting on the seat portion to prevent the assisted person from rolling; and

and an arm portion which is held by the side frame portion and receives the front surface portion of the upper body of the person to be assisted seated on the seat portion in a state of extending in the horizontal direction to prevent the person to be assisted from tilting forward.

2. Auxiliary device according to claim 1,

the pair of side frame portions are provided on the left and right sides of the upper body of the person seated on the seat portion.

3. Auxiliary device according to claim 2,

the rear end portions of the pair of left and right side frame portions are connected to each other by a rear frame portion located behind the person to be assisted seated on the seat portion to prevent the person to be assisted from leaning backward.

4. Auxiliary device according to claim 2 or 3,

the arm portion is provided only on one or both of the pair of left and right side frame portions.

5. An auxiliary device according to any one of claims 1 to 3,

the arm portion is selectively located at a use position extending in a horizontal direction and a retracted position retracted from a front side of an assisted person sitting on the seat portion.

6. An auxiliary device according to any one of claims 1 to 3,

the position of the arm portion in the front-rear direction can be changed.

7. An auxiliary device according to any one of claims 1 to 3,

the swing coupling mechanism includes a lock mechanism that restricts at least a vertical swing of the side frame portions.

8. Auxiliary device according to claim 7,

the lock mechanism is unlocked to allow the side frame portions to swing in the forward and upward direction.

9. An auxiliary device according to any one of claims 1 to 3,

the center of swing of the side frame portions that can be swung by the swing coupling mechanism is set at a position near the waist of the person seated on the seat portion.

10. Auxiliary device according to claim 5,

an arm locking mechanism is provided for locking the arm portion at the retracted position in an immovable state.

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