JP2009148371A - Wheelchair for nursing care - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wheelchair for nursing care which enables an adjustment of a shape of the backrest to conform to a curved state of the spine of a person in need of nursing care and makes the person in need of nursing care seated stably. <P>SOLUTION: The wheelchair for nursing care is equipped with a travelling vehicle body 12 equipped with pairs of right and left front wheels 12b and rear wheels 12c and a seat part 14 for seating on the travelling vehicle body 12. The wheelchair is equipped with the lower backrest part 16 for supporting the lower part of the back of the seated person 30 in need of nursing care and the upper backrest part 18 for supporting the upper part of the back and the head part. The wheelchair is equipped with a rotating shaft 20 and a fixing member 20a which are members for adjusting an angle and where each of the backrest parts 16, 18 is connected and fixed in a manner to alter the angle. The wheelchair is equipped with a mechanism 22 for altering an angle of the lower back surface for adjusting an angle to mount the lower backrest part 16 relative to the seat part 14. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a nursing wheelchair that is used indoors or outdoors by elderly people, physically challenged people, and the like, and relates to a nursing wheelchair that can be adjusted in shape according to the physique and shape of the care recipient.

  Generally, the backrest of a wheelchair forms a backrest by stretching a cloth or the like between a pair of opposed frames of a rectangular frame. However, even if the fabric fiber itself is soft, it is stretched with a predetermined tension, so if the cared person has a pronounced back with a curved spine due to age or disease, the entire back is wrapped. I can't support you. Therefore, it is possible to wrap the entire back of the cared person by supporting the cloth on the back with a gentle tension, so that the cared person can wrap and support the entire back. The whole swayed in an unstable manner, making it uncomfortable to sit down.

  On the other hand, wheelchairs in which elastic cushion materials such as feathers and sponges are attached to the backrest are also used. As an improvement measure for the above problems, the gap between the care receiver's back and the backrest portion is filled with the cushion material. However, since the degree of curvature of the spine is not constant depending on the cared person, if the cushion material is set to a thin thickness, it is insufficient for the cared person who has a pronounced degree of curvature of the circular spine. Then, a caregiver who has a slight curvature of the back of the circle is forced to have a cramped posture. Therefore, the measure for attaching the cushion material is not a measure that can realize a highly versatile wheelchair that can be used for various care recipients.

  Therefore, a wheelchair that can adjust the shape of the wheelchair according to the physique of the individual cared person has been proposed in order to always provide good comfort regardless of the difference in the physique of the cared person using the wheelchair. Yes.

  For example, the unit type wheelchair disclosed in Patent Document 1 is a unit type wheelchair in which the shape of each part of the wheelchair can be adjusted. Specifically, in order to be able to adjust the width of the wheelchair, the position and angle of the wheel, the angle of the backrest, etc., various frames are provided with construction hardware such as brackets and plates, and the screwing positions of the screws of these members Can be adjusted.

Moreover, the wheelchair for hair washing currently disclosed by patent document 2 is a wheelchair comprised so that an elderly person, a physically handicapped person, etc. could wash hair. Specifically, a backrest is provided at the rear of the wheelchair seat so that it can be freely rotated, and a occipital head support is provided at the upper end of the backrest so that it can be folded or removed. The wheelchair guides the cared person to a position where the hair can be washed by folding or removing the support part and then attaching a hair washing container to the head part.
JP 2005-28095 A JP 2002-233556 A

  Supports the back and head and supports a stable posture for carers who have difficulty walking due to diseases such as back pain and visceral pressure disorder due to increased curvature of the spine and round or stooped back. It is not easy to get a comfortable wheelchair, and in that case, a dedicated wheelchair must be manufactured according to the physique and shape of the person, and it cannot be shared by multiple people, There was a problem that the price became expensive.

  Moreover, since the backrest of the unit type wheelchair of Patent Document 1 is formed in a flat shape, it is possible to support the portion from the top of the back to the head, particularly in the case of a cared person with a noticeable back. However, it was unstable in terms of posture maintenance, and a load was applied to the apex of the back of the circle, resulting in poor sitting comfort.

  The wheelchair of Patent Document 2 has a mechanism that can bend the occipital head support portion provided at the upper end of the backrest that is formed in a flat shape. As with, it was not possible to widely support the part from the top of the back of the circle to the head, and it was uncomfortable.

  The present invention has been made in view of the above-described background art. The backrest shape can be adjusted in accordance with the curved state of the cared person's spine, and the cared person can be seated stably. The purpose is to provide a care wheelchair.

  The present invention is a nursing wheelchair comprising a traveling vehicle body in which a pair of left and right front wheels and a rear wheel are provided, and a seat for seating is provided on the traveling vehicle body. It is a nursing wheelchair provided with a lower backrest portion that supports a lower portion, an upper backrest portion that supports an upper portion of the back and a head, and an angle adjustment member in which the respective backrest portions are connected and fixed so that the angle can be changed. Furthermore, a lower back surface angle changing mechanism for adjusting an attachment angle of the lower backrest portion with respect to the seat portion is provided.

  Each of the upper backrest and the lower backrest includes a pair of an upper back frame and a lower back frame, and a portion where the upper back frame and the lower back frame are opposed to each other has a backrest with respect to the longitudinal direction of each member. The angle adjusting mechanism is located outside each backrest part, and the upper back frame and the lower back frame are separately stretched over the upper back sheet and the lower back sheet, respectively, A certain gap is provided between each upper back sheet and lower back sheet.

  According to the care wheelchair of the present invention, the backrest can be refracted into a letter-shaped shape, and the angle thereof can be freely adjusted. Therefore, the backrest shape that matches the curvature of the spine of each care recipient can be freely adjusted. It can be formed, and the backrest shape suitable for each cared person can be formed, so that the pain and discomfort of using a wheelchair that does not fit the body shape can be eliminated. Furthermore, it is economical because it is not necessary to prepare a dedicated wheelchair for each care recipient having various back shapes.

  Hereinafter, an embodiment of a care wheelchair according to the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the nursing care wheelchair 10 has a front wheel 12b and a rear wheel 12c attached to each of a pair of left and right frame bodies 12a, and each frame body 12a is connected and fixed by a connecting frame 12d. A vehicle body 12 is configured.

  A seat 14 is provided at the upper part of the traveling vehicle body 12. The seat portion 14 has a structure in which a seat portion frame 14c in which the footrest 14a and the armrest 14b are integrally connected is configured as a pair of left and right via a connecting frame 14d. On the pair of left and right seat frame 14c, a seating surface for a care receiver is formed by stretching a seating sheet (not shown). The mounting frame 14f extending rearward from the rear end of the seat frame 14c is pivotally attached to the frame body 12a of the traveling vehicle body 12, and the seating surface can swing in the front-rear direction. Further, a seat angle changing mechanism 24 is connected between the connecting frames 12d and 14d. The seat angle changing mechanism 24 has a cushioning effect and allows the distance between the connecting frames 12d and 14d to be expanded and contracted by a cylinder and an operating mechanism (not shown). The mounting angle can be freely adjusted.

  A backrest including a lower backrest portion 16 and an upper backrest portion 18 is provided behind the seat portion 14. The lower backrest portion 16 is configured such that a lower back frame 16a is arranged in a pair of left and right via a connecting frame 16b, and a lower back sheet 16c is stretched between the lower back frames 16a. The upper backrest 18 includes a pair of left and right upper back frames 18a via three connecting frames 18b, and an upper back sheet 18c is stretched between the upper back frames 18a. A caregiver handle 18d and a brake lever 18e are attached to the upper rear frame 18a.

  A portion where the upper back frame 18a and the lower back frame 16a face each other is formed by being slightly bent outside the backrest portions 16 and 18 with respect to the longitudinal direction of each member, and a fixing member 20a which is an angle adjusting mechanism is formed. It is formed outside the backrests 16 and 18 so as not to protrude inside the backrest. Furthermore, the upper back sheet 18c and the lower back sheet 16 spanned between the upper back frame 18a and the lower back frame 16a are spanned by different sheet materials, and between the upper back sheet 18a and the lower back sheet 16a. It has a certain gap.

  Further, the lower end portion of the upper rear frame 18a is attached to the upper end portion of the lower rear frame 16a via a rotary shaft 20 that is an angle adjusting member, and the angle-changeable dog-shaped shape by a fixing member 20a that is an angle adjusting member. The backrest is formed. The fixing member 20a is fastened with a screw at a meshing position where a fixed gear (not shown) meshed with the lower rear frame 16a and the upper rear frame 18a facing each other and bent at an arbitrary angle. It is to be fixed.

  The lower end portion of the lower back frame 16a is pivotally attached to the rear end portion of the seat frame 14c, and the lower back angle changing mechanism 22 is connected between the connecting frames 12d and 16b. The lower back surface angle changing mechanism 22 is a cylinder and an operation mechanism (not shown) that is capable of extending and contracting with a buffering effect. Thus, the mounting angle between the seat portion 14 and the lower backrest portion 16 can be freely adjusted. can do.

  Each frame and frame body is constructed by appropriately cutting a metal pipe material such as aluminum, and is assembled by welding or screwing.

  Next, the operation when the care wheelchair 10 is used will be described with reference to FIG. The cared person 30 is a walking difficult person whose degree of curvature of the spine is increased to be in a circular or stooped state. First, the cared person 30 sits deeply on the seat 14 and leans against the backrest. At this time, if the backrest is formed at a straight angle between the upper backrest portion 18 and the lower backrest portion 16, the lower back portion 30a of the care recipient 30 is supported by the lower backrest portion 16, but the circular top portion 30b, the upper back portion 30c, and the back head portion 30d are not supported because a gap is formed between the upper backrest portion 16 and the upper back portion 30c. Accordingly, the cared person 30 cannot stably hold the posture and is in a state of poor sitting comfort.

  Therefore, the caregiver adjusts the mounting angle of the upper backrest portion 18 according to the shape of the back of the care receiver 30. First, the screw of the fixing member 20a is loosened so that the upper backrest portion 18 can swing around the rotating shaft 20, and the upper backrest portion 18 is refracted forward. Then, when the upper backrest portion 18 comes into contact with the rounded vertex portion 30b, the upper back portion 30c, and the head portion 30b of the cared person 30, the upper back portion 18 is fixed by tightening the screws of the fixing member 20a. As a result, the lower back portion 30a, the back apex portion 30b, the upper back portion 30c, and the back head portion 30d are supported by the lower backrest portion 16 and the upper backrest portion 18 as a whole, so that the cared person 30 has a stable posture. It is held and is in a comfortable state.

  Furthermore, if the lower back surface angle changing mechanism 22 is operated, the attachment angle between the seat portion 14 and the lower backrest portion 16 can be adjusted so that the body position corresponding to the waist of the care recipient 30 can be obtained. Further, when it is desired to adjust the stability of the entire body, the position of the center of gravity, etc., the mounting angle between the traveling vehicle body 12 and the seat 14 can be adjusted by operating the seat angle changing mechanism 24.

  The care wheelchair 10 of this embodiment can adjust the mounting angle of each part while listening to the condition of the body of the cared person 30 while the cared person 30 is seated. Furthermore, according to the structure of this care wheelchair 10, since the adjustment mechanism of each part is provided independently, the attachment angle of the upper backrest part 18 and the lower backrest part 16 is set to α, the lower back surface part 16 and the seat part. 14 and β, and the mounting angle between the seat 14 and the traveling vehicle body 12 is γ, when changing any one of the angles α to γ, the other mounting angles are maintained as they are. Therefore, for example, when the angle γ is adjusted, the value of the angle β once set is shifted, and there is no trouble that the angle β needs to be set again. That is, since the angles α to γ can be determined one by one in order, it is easy to set all to the optimum state.

  Further, the upper backrest portion 18 and the lower backrest portion 16 are separated by the upper back seat 18c and the lower back seat 16c having a predetermined gap, and even when there is a difference in the body shape of the care recipient 30, the upper back rest portion The upper backrest portion 18 and the lower backrest portion 16 can be fitted to the back in a state in which the angle between the lower backrest portion 16 and the angle 18 is adjusted.

  In addition, the wheelchair for care of this invention is not limited to the said embodiment, The magnitude | size of a front wheel or a rear wheel can be selected suitably. In addition, the size, material, and structure of each frame can be set as appropriate according to the height and weight of the cared person to be used, such as for adults and children. In addition, the seat sheet, the lower back sheet, and the upper back sheet are not limited to flexible sheet materials such as cloth, but may be flat plate materials having a flexible surface. Further, there may be a plate material, a cloth or the like provided with an elastic cushion material.

It is a side view which shows one Embodiment of the wheelchair for care of this invention. It is a front view of the wheelchair for care of this embodiment. It is a side view which shows the use condition of this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Care wheelchair 12 Traveling vehicle body 12a Frame body 12b Front wheel 12c Rear wheel 14 Seat part 16 Lower backrest part 16a Lower back frame 16c Lower back seat 18 Upper backrest part 18a Upper back frame 18c Upper back seat 20 Rotating shaft 20a Fixing member 22 Below Back angle change mechanism 24 Seat angle change mechanism 30 Caregiver

Claims (3)

  In a care wheelchair provided with a traveling vehicle body in which a front wheel and a rear wheel are respectively provided in a pair on the left and right sides, and a seat for seating on the traveling vehicle body, a lower backrest that supports a lower portion of the back of a seated person A care wheelchair comprising: a portion, an upper back portion for supporting an upper portion of the back and a head, and an angle adjusting member in which the back portions are connected and fixed so that the angle can be changed.   The care wheelchair according to claim 1, further comprising a lower back surface angle changing mechanism for adjusting an attachment angle of the lower backrest portion with respect to the seat portion. Each of the upper backrest and the lower backrest includes a pair of an upper back frame and a lower back frame, and a portion where the upper back frame and the lower back frame are opposed to each other with respect to the longitudinal direction of each member. Formed by bending outward, the angle adjusting mechanism is located outside each backrest part, and the upper back sheet and the lower back frame are respectively stretched over the upper back frame and the lower back frame, respectively. The care wheelchair according to claim 1, wherein a certain gap is provided between the back sheet and the lower back sheet.

Images