JP2011056228A - Wheelchair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wheelchair which has a simple structure, is easy to perform nursing care, and possesses a standing-up assisting device. <P>SOLUTION: A structure is given in which the standing-up of a person requiring nursing care can be assisted by inclining a seat surface 1 by pushing up the back end portion of the seat surface 1 by a cylindrical member 2 for pushing up attached to the frame of the wheelchair. The pushing-up of the cylindrical member 2 for pushing up is carried out by stepping on by a caretaker of a pedal 8 ahead of the wheelchair in a sheet-like member, which is attached to the frame of the wheelchair and is attached through a fulcrum 7 having a rotation section of a ratchet structure. Since the member of the wheelchair does not lie between the caretaker and the person requiring nursing care by converting into such the structure, the assisting of the standing-up of the person requiring nursing care becomes easy. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wheelchair equipped with a standing assistance device that makes it easier for a care recipient to stand by tilting the seat surface, and in particular, tilting the seat surface by the caregiver operating from the front of the wheelchair. It relates to what can be done.

  As a matter of course, users of wheelchairs have some obstacles in walking function, etc., and not only do they need a lot of labor to stand up themselves, but also can be painful, so they need care. Often become a care recipient. Especially in Japan, with the aging of the declining birthrate and the aging population, if the side being cared for is an elderly person, the caring side may also become older, increasing the burden on the caring side. It's getting on.

  As a countermeasure, nursing robots have been actively developed, but it still takes a certain period to put it into practical use. Even if it is put into practical use, it seems difficult to spread to the general public immediately due to price issues. . In addition to the robots described above, various wheelchairs having a relatively simple structure and a function for assisting the standing of a care recipient are proposed.

  For example, Patent Document 1 discloses a wheelchair standing assistance device that can raise a care recipient on a wheelchair by changing the inclination of the wheelchair itself. However, in the wheelchair standing assistance device disclosed herein, an electric motor, a pneumatic mechanism or a hydraulic mechanism is used as a drive source for changing the tilt of the wheelchair, and a pulley, pinion, rack, or the like is used as a power transmission mechanism. Since it is used, there are problems that it is difficult to reduce the manufacturing cost due to the complexity of the structure, and that the weight of the wheelchair itself cannot be avoided.

  As a countermeasure against such a problem, the present inventor previously described in Patent Document 2 can support the standing of the care recipient by tilting the seat surface by stepping on the pedal provided on the wheelchair by the caregiver. Proposes a simple structure wheelchair. However, in the wheelchair disclosed here, the position to step on the pedal is on the rear side of the wheelchair, and there is room for improvement in the operation position etc. for the caregiver to support the body of the care recipient.

  Japanese Patent No. 3553888   JP 2008-154978 A

  Accordingly, an object of the present invention is to provide a wheelchair equipped with a stand-up assisting device having a simple structure and easy care.

  The present invention has been made as a result of reexamination of the structure of the standing assistance device for the wheelchair in order to solve the above-mentioned problems.

  That is, the present invention provides the seating surface by moving an end of the seating surface on the backrest side upward by a push-up bar-like member that is slidably attached to the lower frame of the seating surface. In the wheelchair capable of adjusting the inclination angle, the upward movement of the push-up bar-shaped member is a plate-shaped member attached to a fulcrum provided in front of the end of the seat surface in the frame. The wheelchair is characterized in that the forward end is moved by moving the lower end of the plate-shaped member in contact with the lower end of the push-up bar-shaped member by moving the front end downward.

  Moreover, this invention is the said wheelchair characterized by the rotation part of the said fulcrum having a ratchet mechanism.

  In the wheelchair according to the present invention, a front end portion of the plate-like member constitutes a pedal, and a structure in which the backrest portion side of the seat surface rises when the caregiver steps on the pedal is provided. . For this reason, since there is no wheelchair component between the care recipient and the caregiver, the caregiver can directly support the body of the care recipient when the care recipient stands up.

  In addition, the pivoting portion of the pedal fulcrum can use a normal sliding bearing or bearing, but by providing a ratchet structure, the caregiver steps on the pedal and moves the pedal downward. In this case, the operability is remarkably improved without moving in the opposite direction with the weight of the care recipient.

  In addition, the wheelchair having the standing assistance device according to the present invention can be used not only for simple nursing care but also for rehabilitation. However, if the progress status can be grasped numerically, rehabilitation goals can be set. Motivate caregivers. Specifically, the progress of the function recovery of the care recipient leads to a decrease in the seating surface angle that can be raised, so that it is useful to be able to display the inclination angle of the seating surface.

  The figure which shows the normal state of an example of the wheelchair which concerns on this invention   The figure which shows the state in which the seat surface of an example of the wheelchair which concerns on this invention inclined.   The figure which shows the example which attached the angle display version which shows the inclination of a seat surface with the wheelchair which concerns on this invention

  Next, an embodiment of the wheelchair of the present invention will be described based on specific drawings.

  FIG. 1 is a diagram showing a normal state of an example of a wheelchair according to the present invention, and FIG. 2 shows a state where a seat surface is inclined. 1 and 2, 1 is a seating surface, 2 is a lifting rod-shaped member, 3 is a lifting rod-shaped member support, 4 is a rear end of the plate-shaped member, 5 is a front end of the plate-shaped member, 6 is a hinge that joins the front end of the plate-like member to the pedal, 7 is a fulcrum, and 8 is a pedal.

  As shown in the figure, in the wheelchair of the present invention, the push-up bar-shaped member 3 supported by the push-up bar-shaped member support portion 3 is slidable in the vertical direction, and moves upward when the pedal 8 is stepped on. It is pushed up by the rear end 4 of the plate member. In this example, the pedal 8 is joined to the front end 4 of the plate-like member by a hinge 6, and can be folded and stored as shown in FIG. 1 when not in use. The fulcrum 7 has a ratchet structure. It has become.

  FIG. 3 is an example of a wheelchair according to the present invention, in which an angle display plate 9 indicating the inclination of the seating surface is attached. By attaching the angle display plate 9 in this manner, when the wheelchair of the present invention is used for rehabilitation, the degree of progress of functional recovery can be quantified, so that the care recipient can improve the willingness to engage in rehabilitation.

  As described above, according to the present invention, it is possible to provide a wheelchair with a standing assistance device that can be manufactured with a simple structure at low cost, and it can be said that it greatly contributes to the aging society to come. . The present invention is not limited to the above-described embodiment, and a design that does not exempt the gist including various modifications and corrections that can be conceived by those who have ordinary knowledge in the field of the present invention. Of course, even if there is a change, it is included in the present invention.

DESCRIPTION OF SYMBOLS 1 Seat surface 2 Pushing-up rod-shaped member 3 Pushing-up rod-shaped member support part 4 End part behind plate-like member 5 Front end part of plate-like member 6 Hinge 7 Support point 8 Pedal 9 Angle display board

Claims (2)

  The inclination angle of the seating surface is adjusted by moving the backrest side end of the seating surface upward by a push-up bar member that is slidably attached to the lower frame of the seating surface. In the wheelchair to be obtained, the upward movement of the push-up bar-shaped member moves down the front end portion of the plate-like member attached to the fulcrum provided in front of the end portion of the seating surface in the frame. A wheelchair characterized by being moved by upward movement of the rear end of the plate-like member that comes into contact with the lower end of the push-up rod-like member by movement in the direction.   The wheelchair according to claim 1, wherein the pivot part of the fulcrum has a ratchet mechanism.

Images