JP5588271B2 - Assistance transfer device - Google Patents

Description

  The present invention relates to a transfer device for assistance used in the field of welfare and medicine.

  An assistive transfer device refers to a person who is difficult to walk by himself or herself, such as a disabled person or an elderly person (hereinafter also referred to as a “subject”), from a bed to a wheelchair, and from a wheelchair to a toilet seat. This is a device that assists the transfer operation between the standby position and the target position when moving from the standby position to the target position, such as from a wheelchair to a passenger car seat. By using the transfer device for assistance, it is no longer necessary for the assistant to lift the person being assisted during the transfer operation, and the burden on the body of the assistant can be reduced, and the assistant holding the person being assisted falls down. There will be no accidents where the caregiver falls, and the convenience and safety of the transfer work will be improved.

  As an assisting transfer device, for example, one disclosed in Patent Document 1 exists. The transfer device (transfer device) disclosed in Patent Document 1 has a pedestal having a wheel at the lower end and has a support column erected on the pedestal, and is provided to be tiltable on the upper end side with respect to the support column. It has a branched pillar. The branch is attached to a pedal via a link bar on the lower end side, with a holding tool (arm bar) for lifting the person being assisted by abutting the abdomen of the person being assisted at the upper end thereof, When the assistant steps on the pedal with his / her foot and tilts the branch pole, the assistant sitting in the standby position is lifted in a prone state.

  The conventional transfer device includes a plurality of tilting portions and link portions, and is structurally complicated. Therefore, the manufacturing cost is inevitably increased. In addition, since the pedestal is tilted on the pedestal to lift the person being assisted, the pedestal needs to have stability so that the transferer carrying the assisted person will not fall down. If the weight of the transferer itself becomes heavy, and it becomes necessary to lift and transfer the transferer, the transfer operation becomes difficult for the assistant.

  Further, in the state where the person being assisted is lifted, the weight of the person being assisted is concentrated on the abdomen of the holder, so the abdomen of the person being assisted is compressed, and this pressure is a burden on the person being assisted. . Furthermore, since the head of the person being assisted faces downward, the person being assisted is difficult to see forward while moving and feels anxious.

JP-A-7-289595

  SUMMARY OF THE INVENTION An object of the present invention is to provide an auxiliary transfer device that has a simple structure, can be manufactured at low cost, and has a configuration that is easy to carry but performs a desired function. .

  Based on the above problems, the present invention is configured as follows. That is, the assisting transfer device of the present invention is provided with a rear wheel portion that rotatably supports two or more wheels, and a rear wheel portion that is spaced apart from the front to rotate one or more wheels. A front wheel portion to be supported, a main frame portion with the rear wheel portion attached to the lower end and extending upward, and the front wheel portion attached to the lower portion with the wheel positioned downward and the main wheel portion A frame composed of a sub-frame portion connected to the frame portion so that the angle can be fixed; and a placement portion supported on the upper portion of the main frame portion for placing the person being assisted, wherein the rear wheel portion is The traveling direction of the wheel is fixed in the front-rear direction, and the front wheel portion is provided in a state where the traveling direction of the wheel can be changed. And, when the front and rear wheels are in a grounded state, the support position (B) of the mounting portion in the upper part of the main frame portion is located between the front wheel portion and the rear wheel portion in the front-rear direction, And the fixed position (A) with respect to the said rear wheel part of the lower end of the said main frame part is located back rather than the support position (B) of the said mounting part in the front-back direction.

  The “front-rear direction” is a direction in which the front side of the person being assisted is front and the back side is behind when the person is on the assistance transfer device. “Connecting the angle so that the angle can be fixed” means that it is possible to connect the main frame part with the angle made by the sub-frame part being fixed. In addition to being connected, the concept includes releasing the connection (separating the main frame portion and the sub-frame portion) and rotating the sub-frame portion with respect to the main frame portion at the connecting portion. It is.

Further, the frame includes a movable frame part having a footrest section, the movable frame portion, to the upper portion of the main frame portion, are configured as being attached swingably.

  Further, the frame is configured to have a structure in which a connecting portion between the main frame portion and the sub frame portion can release a connection state in which a connecting angle between the main frame portion and the sub frame portion is fixed. May be.

  The connecting portion may be configured to have a structure in which the connection between the main frame portion and the sub frame portion is detachable.

  The connecting portion may be configured to have a structure in which the sub-frame portion is rotatable with respect to the main frame portion.

  The main frame portion is a structure having a straight or substantially straight shape when viewed from the side, and is provided at the center of the assisting transfer device when viewed from the front and rear direction. You may comprise as what has the width | variety which can be located between parts. In addition, the width | variety of the said main frame part is about 10-20 cm, for example.

  The mounting portion is made of a flexible material, and at least a seat portion capable of supporting the waist and thighs of the person being assisted, and an end portion attached to the seat portion and supported by the main frame portion. It may be configured so as to include a band portion.

  You may comprise the said front side wheel part as what has an omnidirectional wheel which can move to the front-back and the left-right direction.

  You may comprise the said flame | frame as what has a connection part for conveyance which can be connected with a wheelchair.

  The assisting transfer device of the present invention is mainly composed of a frame composed of a main frame portion and a sub-frame portion, which are simple structures, and does not include a complex force-increasing mechanism including a tilting portion and a link portion. It will be structurally simple. Moreover, when the front and rear wheels are in a grounded state, the support position (B) of the mounting portion at the upper part of the main frame portion is located between the front wheel portion and the rear wheel portion in the front and rear direction, Since the person being assisted is supported in the vicinity of the center of gravity of the transferer, the person being assisted is supported stably even if the assistance transferer itself is not so heavy (even if it does not have a heavy “pedestal” etc.). be able to.

  Therefore, according to the assisting transfer device of the present invention, the number of parts constituting the assisting transfer device is small, and the manufacturing cost can be kept low from the viewpoint of material cost and the like. It is easy to carry around when it becomes necessary to lift and carry the assisting transfer device.

  The frame includes a movable frame portion having a footrest portion, and the movable frame portion is swingably attached to the upper portion of the main frame portion. Therefore, when moving to the assistance transfer device, the frame is covered. Since the assistant moves from the standby position to the assistance transfer device while sliding, the assistance person can transfer the person being assisted to the assistance transfer device with a smaller force than when the footrest does not swing. Moreover, when the position of the center of gravity of the assisting transfer device is moved forward, it is difficult for the assisting transfer device to fall over when the assisting transfer device is moved.

  With a structure that can release the fixed angle between the main frame part and the sub frame part, for example, a structure in which the main frame part and the sub frame part are detachable, or a connection part between the main frame part and the sub frame part. Since the sub-frame portion can be rotated with respect to the main frame portion, the assisting transfer device can be changed to a shape that can be easily carried.

  In addition, by changing the shape of the assisting transfer device to a shape that is easy to carry, the size of the assisting transfer device can be reduced in the front-rear direction. Storage is possible.

  By making the main frame part a narrow structure, the transfer device for assistance becomes easier to carry. In addition, you may provide a buffer pad etc. in the part which touches the crotch part of the care receiver of the main frame part.

  Since the transfer device for assistance can be connected to the wheelchair by the transport connecting part, it is possible to carry the transfer device for assistance by the person who uses the wheelchair himself, and the person who uses the wheelchair regardless of whether it is indoors or outdoors. The person being transferred can be transferred at the destination.

It is a side view of the assistance transfer device in one Example of this invention. It is a perspective view of the assistance transfer device in one Example of this invention. However, the person being assisted is omitted. It is a side view of the assistance transfer device in one Example of this invention. However, the placement unit and the person being assisted are omitted. It is operation | movement explanatory drawing of the assistance transfer device in one Example of this invention. It is a side view which shows the state which folded the assistance transfer device in one Example of this invention. It is a side view which shows other embodiment of the assistance transfer device of this invention. It is a side view which shows other embodiment of the assistance transfer device of this invention. It is a side view which shows other embodiment of the assistance transfer device of this invention. It is a perspective view which shows other embodiment of the assistance transfer device of this invention. However, the person being assisted is omitted. It is a perspective view which shows other embodiment of the assistance transfer device of this invention. However, the person being assisted is omitted. It is a perspective view which shows other embodiment of the assistance transfer device of this invention. However, the person being assisted is omitted.

  1 to 5 show a preferred embodiment of the present invention. In the following description, the “front-rear direction” means that the front side of the person being assisted 1 is the front and the back side is the back when the person being ridden on the assistance transfer device 10 as described above. To do. That is, in FIGS. 1 to 5, the right side of the drawing is the front. 1, 3, 4 and 5, the direction perpendicular to the paper surface is the width (lateral) direction of the assisting transfer device 10. 6 to 11, the right side of the drawing is the front.

  The assisting transfer device 10 of the present embodiment has, as main components, a frame 13, a front wheel portion 11 and a rear wheel portion 12 provided at the lower portion of the frame 13, and a person to be assisted 1 from a standby position. It is equipped with the mounting part 16 which lifts the assistant 1, and is grounded to the floor by the two wheels 11a provided in the front wheel part 11 and the two wheels 12a provided in the rear wheel part 12. .

  The frame 13 includes a main frame portion 14, a sub frame portion 15, and a movable frame portion 18. Each frame portion 14, 15, 18 is manufactured using, for example, a linear prismatic material made of aluminum. Has been.

  As shown in FIG. 2, the main frame portion 14 is a structure manufactured by combining several prismatic materials, and a bracket 24 that supports the placement portion 16 and the movable frame portion 18 is fixed to the upper end thereof. The rear wheel part 12 is attached to the lower end. In the example shown in the drawing, the width of the main frame portion 14 is a dimension (about 20 cm) obtained by combining three prisms at the widest portion.

  The rear wheel portion 12 includes two wheels 12 a and a plate-like base portion 12 b that fixes the two wheels 12 a to the main frame portion 14. The base portion 12b is fixed to the main frame portion 14 at a position on the rear end side in the center in the width direction. The two wheels 12a are attached to the base portion 12b at the same distance from the fixed position of the base portion 12b with respect to the main frame portion 14 at the same axis at both ends of the base portion 12b in the width direction. Yes. Each wheel 12a is fixed to the lower surface of the base portion 12b with its rotational direction (traveling direction) as the front-rear direction. Further, the rear wheel portion 12 is fixedly attached to the main frame portion 14. Accordingly, each wheel 12a in the rear wheel portion 12 is provided in a state in which its traveling direction is fixed with respect to the main frame portion 14.

  Moreover, in the example of illustration, with respect to the base part 12b in the rear wheel part 12, a pair of transport connection parts 22 used when the assisting transfer device 10 is mounted on a wheelchair can be rotated by a connection pin 22a. It is attached. The details of the transport connecting portion 22 will be described later.

  A connecting portion 19 into which an end portion of the sub-frame portion 15 is inserted is formed at the approximate center of the main frame portion 14. The connecting portion 19 includes a pair of prismatic members and four guide members 27 that constitute a part of the main frame portion 14, and these members form a space in which the sub frame portion 15 can be inserted. In addition, in the state where the sub-frame portion 15 is inserted into the space, the connecting portion 19 sandwiches the sub-frame portion 15 in the width direction by a pair of prismatic members and restrains the sub-frame portion 15 in the width direction, and also guides 27 The sub-frame portion 15 is restrained in the longitudinal direction of the main frame portion 14 by sandwiching it in the longitudinal direction of the main frame portion 14, and further, the attachment angle of the sub-frame portion 15 with respect to the main frame portion 14 depending on the attachment position of the front and rear guide members 27 It is the composition which defines. Then, the sub frame portion 15 is connected to the main frame portion 14 by inserting the sub frame portion 15 into the space of the connecting portion 19.

  The sub-frame portion 15 is formed of a single prismatic material in the illustrated example, has a stopper (not shown) for restricting the position of the connecting portion 19 in the insertion direction with respect to the main frame portion 14, and the tip thereof A convex spring button 23 (so-called plunger) is provided at the portion. The position of the sub-frame portion 15 in the longitudinal direction is regulated by the stopper and the button 23 with the convex spring, so that the sub-frame portion 15 does not fall out of the main frame portion 14 when inserted into the connecting portion 19. . As will be described later, when the assisting transfer device 10 is transported, the sub-frame portion 15 is separated from the main frame portion 14 with one touch by pulling out the sub-frame portion 15 from the connecting portion 19 while pushing the button 23 with the convex spring. can do.

  In this embodiment, in a state where the main frame portion 14 and the sub frame portion 15 are connected, the connecting portion 19 is formed such that the longitudinal direction of the main frame portion 14 and the longitudinal direction of the sub frame portion 15 are perpendicular to each other. Is designed. Accordingly, the connected main frame portion 14 and sub-frame portion 15 have a substantially “human” shape when viewed from the side.

  Further, a front wheel portion 11 is provided at a tip end portion (an end portion opposite to the connecting portion 19 side) of the sub frame portion 15. The front wheel portion 11 includes two wheels 11 a and a plate-like base portion 11 b that fixes the two wheels 11 a to the sub-frame portion 15. The base portion 11b includes a plate-like portion to which the two wheels 11a are attached and an attachment portion extending upward from the center portion of the plate-like portion, and is fixed to the sub-frame portion 15 at the attachment portion. ing. The two wheels 11a are attached to the lower surface of the base portion 11b in a state where the two wheels 11a are close to each other at a distance equal to the width direction from the attachment portion of the base portion 11b. Accordingly, the front wheel portion 11 is attached to the sub-frame portion 15 with the wheel portion 11 a positioned below the sub-frame portion 15.

  In addition, in the front wheel part 11, the structure which can change the advancing direction of a wheel to all directions is employ | adopted so that the direction can be easily changed when moving the transfer device 10 for assistance, The As a configuration, for example, an omni wheel (registered trademark) that allows the wheel itself to travel in all directions is employed. Of course, a caster in which the support bracket of the wheel 11a is rotatably assembled to the base portion 11b can also be employed.

  And according to the structure of these main frame parts 14 and sub-frame parts 15, in the state where front wheel part 11 and rear wheel part 12 grounded, main frame part 14 has the upper end part ahead of the lower end part. It will be in the state inclined so that it may be located in. Accordingly, the fixing position of the lower end of the main frame portion 14 with respect to the rear wheel portion 12 is behind the position of the bracket 24 in the upper portion of the main frame portion 14 in order to support the placement portion 16. Further, the length dimension of the sub-frame portion 15 is set so that the support position of the mounting portion 16 in the bracket 24 is located behind the front wheel portion 11 in consideration of the inclination angle of the main frame portion 14. .

  The movable frame portion 18 is constituted by a pair of prismatic members, and is connected to the bracket 24 by a connecting pin 18a at its upper end so as to be rotatable, and can swing with respect to the bracket 24 in the main frame portion 14. . On the other hand, a footrest portion 17 is fixed to the lower end so as to maintain the interval between the pair of prismatic members. In addition, a sub-frame portion 15 is passed between the pair of prismatic members below the movable frame portion 18 so that the sub-frame portion 15 guides the displacement of the movable frame portion 18 in the swing direction. The displacement in the width direction is restricted so that the bracket 24 is not twisted.

  A knee pad 25 and a handle 26 are attached to substantially the center of the movable frame portion 18. The knee pad 25 has a cushioning property at least on the surface on the main frame 14 side, supports or fixes the knee of the person being assisted 1 during the transfer operation, and the posture of the person assisted 1 greatly changes during the transfer. This is to prevent this. Further, the handle 26 is provided for an assistant, and is used by the assistant to maintain the posture of the assistant transferer 10 during the movement of the assistant transferer 10 and the transfer operation. The handle 26 is rotated upward by the connecting pin 26a of the mounting portion, and can be stored between the pair of prismatic members of the movable frame portion 18.

  The placement unit 16 on which the person to be assisted 1 is placed is also called a sling seat, and a seat part 20 that supports at least the waist and thighs of the person to be assisted 1 and a band part that holds the seat part 20 to the bracket 24. 21. The seat portion 20 is made of a cloth-like material having flexibility and slight stretchability, for example, nylon. As shown in FIG. 1, the seat portion 20 extends from the back side to the both sides of the lumbar portion with the lumbar portion and the back of the assisted portion 1 in a state where the assisted person 1 rides on the placement portion 16. Both wings extending downward from the sides of both sides wrap around from the outside to the inside of each thigh, and a suspension part 20a as a part of the wing is pulled upward from between both legs and is fastened to the bracket 24.

  On the other hand, the band portion 21 is also made of a cloth-like material having flexibility and slight elasticity, and both end portions thereof are attached to the end portions of the seat portion 20 located on both sides of the waist portion, It is fastened to the bracket 24 at the intermediate portion. In this way, the seat portion 20 can be swung in the front-rear direction by the flexibility of the bracket 24 in the upper portion of the main frame portion 14 by the suspension portion 20a and the band portion 21 which are a part thereof. It is suspended.

  In addition, the seat part 20 is opened or opened at the part of the person being assisted 1 with respect to the buttocks, and therefore the seat 20 does not contact the buttocks. This is because, for example, when the seat 20 is mounted on the person 1 who is sitting in a wheelchair, the seat 20 can be placed on the person 1 without having to lift the waist (buttock) of the person 1 from the seat of the wheelchair. This is so that it can be attached. Moreover, it is because it uses also for the defecation of the care receiver 1.

  As described above, in FIG. 1, when the front and rear wheels 11 a and 12 a are in a grounded state, the support position B of the mounting portion 16 at the upper portion of the main frame portion 14 is the front wheel portion 11 (the ground contact point) in the front-rear direction. And the rear wheel portion 12 (the ground contact point). That is, when the front and rear wheels 11a and 12a are in a grounded state, the center of gravity of the assisting transfer device 10 is positioned between the front wheel portion 11 and the rear wheel portion 12, and the assisting transfer device 1 because the length of the seat 20 and the band 21 is adjusted so that the center of gravity of the person 1 who rides on the vehicle 10 is also located between the front wheel 11 and the rear wheel 12. The assisting transfer device 10 is stable.

  Next, with reference to FIG. 4 (a)-(c), the operation | movement which transfers the person 1 to the assistance transfer device 10 from the seat 2 as a waiting position is demonstrated.

  First, as a previous stage of FIG. 4A, the placing portion 16 that is not engaged with the bracket 24 is attached to the person 1 who is sitting on the seat 2. As described above, the placement unit 16 can be easily attached to the person being assisted 1 without raising his / her waist while the person being assisted 1 is sitting. That is, the seat portion 20 is applied from the back side of the lumbar portion of the person 1 who is sitting on the stool 2, and both wing portions are wrapped from both sides of the waist portion to the left and right thighs, and the hanging portions 20a on both wing portions are provided. Pull upward between the legs. At this time, it is necessary to slightly separate the thigh of the person being assisted 1 from the seating surface of the stool 2 by the helper or the person being assisted 1 itself. There is no need to lift from.

  Next, in a state where the front wheel portion 11 is lifted from the floor and the assistance transfer device 10 is tilted toward the person being assisted 1, the assistance transfer device 10 is approached from the front of the person being assisted 1, and the placement portion 16 is moved. The hanging portion 20a and the band portion 21 of the seat portion 20 are moored to the bracket 24, and the positional relationship between the person being assisted 1 and the assistance transfer device 10 is as shown in FIG. At this time, the main frame portion 14 is positioned between both thighs of the person being assisted 1 when the person being assisted 1 is viewed from the front. Further, the knee of the person being assisted 1 is pressed or fixed to the knee pad 25, and the foot is placed on the footrest 17.

  In the state of FIG. 4A, when a helper (not shown) applies a downward force to the tip (front wheel portion 11) of the sub-frame portion 15, the rear wheel portion 12 is placed under the foot of the person being assisted 1. As the rear wheel portion 12 moves, the main frame portion 14 gradually rises from the inclined state toward the person being assisted 1, and the seat portion 20, the hanging portion 20a, and the band portion 21 that have been slackened. Will be stretched.

  Furthermore, when a downward force is applied to the sub-frame portion 15, the moment due to the downward force with the axle of the rear wheel portion 12 as the rotation axis eventually increases the moment due to the weight of the person being assisted around the rotation axis. The assistance transfer device 10 rotates around the rear wheel portion 12 in the clockwise direction in the drawing, and the person to be assisted 1 is lifted from the seat 2 (FIG. 4B).

  When the assistance transfer device 10 rotates to some extent and the center of gravity of the person being assisted exceeds the position of the rotation axis in the front-rear direction (the axle of the rear wheel portion 12), the assistance transfer device 10 is rotated clockwise in the drawing. Since it works only with the moment, an assistant (not shown) supports the assisting transfer device 10 with the sub-frame portion 15 and the handle 26 and lands the front wheel portion 11 to the assisting person 1 to the assisting transfer device 10. Transfer (Fig. 4 (c)). At this time, the main frame portion 14 is located between the thighs of the person being assisted 1. In this manner, the person being assisted 1 gradually moves forward while being lifted along with the rotation of the assistance transfer device 10, and is transferred to the assistance transfer device 10.

  In the state of FIG. 4C, the support position (bracket 24) of the mounting portion 16 in the upper portion of the main frame portion 14 is located between the front wheel portion 11 and the rear wheel portion 12 in the front-rear direction. The center of gravity of the person being assisted 1 and the center of gravity of the person being assisted 10 can be positioned between the front wheel part 11 and the rear wheel part 12, and the transfer device for assistance in which the person being assisted 1 is placed in a stable state. 10 can be moved. In the state where the person to be assisted 1 is on the assistance transfer device 10, an assistant (not shown) moves the assistance transfer device 10 from the standby position to the target position, and the assistant 1 is moved from the assistance transfer device 10 at the target position. Transfer to the destination bed. In addition, what is necessary is just to perform the operation | work reverse to FIG.4 (a)-(c) for transfer to the bed etc. from the transfer device 10 for assistance.

  Since the movable frame portion 18 is swingably attached to the bracket 24 fixed to the upper portion of the main frame portion 14 as described above, the movable frame portion 18 is fixed to the movable frame portion 18 during transfer. The knee pad 25 and the footrest portion 17 are swung with respect to the assisting transfer device 10 according to the rotation of the assisting transfer device 10, in other words, by maintaining a substantially constant position with respect to the floor. The posture of the person being assisted 1 is largely prevented from changing, and the person being assisted 1 is transferred from the seat 2 to the assistance transfer device 10 to reduce the burden on the person being assisted 1.

  FIG. 5 shows a state where the assisting transfer device 10 according to the present embodiment is mounted on the wheelchair 3. When the assisting transfer device 10 is mounted on the wheelchair 3, the mounting is performed as follows.

  In FIG. 2, the button 23 with a convex spring is pushed, the sub-frame part 15 is pulled out from the connecting part 19, the sub-frame part 15 is separated from the main frame part 14, and the movable frame part 18 is folded around the connecting pin 18a. Since the front wheel portion 11 of the sub-frame portion 15 is designed so that the movable frame portion 18 can be fitted in the base portion 11 that supports the two wheels 11a, as shown in FIG. The front wheel portion 11 and the folded movable frame portion 18 are fitted together in the vicinity of the footrest portion 17 to bundle the main frame portion 14, the sub frame portion 15, and the movable frame portion 18. In the bundled state, the transport connecting portion 22 provided on the rear wheel portion 12 of the main frame portion 14 is fitted into the tipping lever 5 of the wheelchair 3, and the main frame portion 14 is attached to the backrest portion of the wheelchair 3 with the band 4. The assisting transfer device 10 is fixed to the wheelchair 3.

  By mounting the assisting transfer device 10 on the wheelchair 3, the person being assisted can carry the assisting transfer device 10, and the assisting transfer device 10 can be used at the destination. In the example of FIG. 5, a deployable auxiliary leg 28 is provided at the lower part of the main frame portion 14 so that the assisting transfer device 10 in a folded state can be self-supported. It is designed to make it easy to mount the unit.

  Except when mounted on the wheelchair 3, the transport connecting portion 22 is folded inward by 90 ° around the connecting pin 22 a as shown in FIG. 2 so as not to hinder the transfer operation. Further, the overall width of the assisting transfer device 10, that is, the lateral dimension of the front wheel portion 11 or the rear wheel portion 12 is designed to be smaller than the width of the general wheelchair 3, strictly speaking, the distance between the left and right main wheels. The wheelchair 3 mounted with the wheelchair 3 and the assisting transfer device 10 is not hindered from moving. According to the JIS standard, the width of the wheelchair 3 is defined as 630 mm or less for a manual wheelchair and 700 mm or less for an electric wheelchair. The tipping lever 5 refers to a lever attached to the lower side of the wheelchair that is used when an assistant lifts the front wheel of the wheelchair 3 when going up a place with a step.

  The preferred embodiment of the present invention has been described above. In addition, the dimension of the member etc. which comprise the transfer device 10 for assistance can be suitably changed according to what to transfer the person 1 to be assisted. For example, when the length of the band portion 21 or the like is adjusted so that the main frame portion 14 is as close as possible when the person being assisted 1 is lifted, the person being assisted 1 can be lifted with a smaller force. Moreover, the connection angle of the sub-frame part 15 with respect to the main-frame part 14 is not restricted to a right angle, but the person 1 to be assisted with a smaller force when the front wheel part 11 and the rear wheel part 12 are separated from each other. Can be lifted and stability after transfer is increased.

  In the present embodiment, the shape of the main frame portion 14 is a straight line shape when viewed from the lateral direction as shown in FIGS. Or a combination of a plurality of straight lines with an obtuse angle (FIG. 6B).

  Further, in this embodiment, the main frame portion 14 and the sub-frame portion 15 can be separated for the purpose of transporting the assistance transfer device 10. The frame portion 15 may be rotatable and may be folded, or the main frame portion 14 and the sub-frame portion 15 may be fixed as a structure that does not separate and rotate if transportation is not considered.

  The assistance transfer device 102 shown in FIG. 7 is obtained by changing the configuration of the connecting portion 19 between the main frame portion 14 and the sub-frame portion 15 in the embodiment shown in FIG. 1 and the like, and the connecting portion 192 is the main frame. The sub-frame portion 152 is rotatable with respect to the portion 142.

  In FIG. 7, the placing portion 16 is engaged with a bracket 242 provided on the upper portion of the main frame portion 142. In the connecting portion 192, the sub frame portion 152 is rotatably connected to the main frame portion 142 by a connecting pin 152b. In addition, one end of a reinforcing member 152a is rotatably connected to a lower portion of the sub frame portion 152 by a connecting pin 152c. The other end of the reinforcing member 152a is fixed to the main frame portion 142 by a locking pin 152d. The footrest portion 172 is provided on the main frame portion 142. When transporting the assisting transfer device 102 or the like, the locking pin 152d is pulled out to separate the reinforcing member 152a from the main frame portion 142, and the reinforcing member 152a is attached to the sub frame portion 152 around the connecting pin 152c. Further, the sub-frame portion 152 is folded with respect to the main frame portion 142 around the connecting pin 152b.

  In the embodiment shown in FIG. 7, the movable frame portion 18 shown in FIG. That is, in the present invention, the movable frame portion 18 is not essential, and the movable frame portion 18 can be omitted in the configuration of the embodiment shown in FIG. In the embodiment shown in FIG. 1 and the like, when the movable frame portion 18 is omitted, the knee pad 25 and the footrest portion 17 may be attached to the main frame portion 14.

  The assisting transfer device 103 shown in FIG. 8 includes a transfer device frame 133 having a sub-frame portion 153 to which the wheels of the front wheel portion 113 and the rear wheel portion 123 are attached, and a sub-frame portion 153 at the rear end. In this example, the main frame portion 143 is connected to the frame portion 153 so as to form an acute angle. That is, in the above-described embodiment, the sub-frame portion 15 is connected in the vicinity of the middle portion of the main frame portion 14 and the frame 13 has a substantially “human” shape when viewed from the side. The present invention is not limited to this, and a configuration in which the sub frame portion 153 is connected to the end portion of the main frame portion 143 is also possible.

  In the embodiment of FIG. 8, the rear end portion of the sub-frame portion 153 forms a part of the rear wheel portion 123, and the rear wheel portion 123 has a rear end portion of the sub-frame portion 153. It is attached to the main frame part 143 via. Therefore, in this embodiment, it can be said that the rear wheel portion 123 is attached to the lower end of the main frame portion 143. The placement portion 16 is engaged with a bracket 243 provided on the upper portion of the main frame portion 143. Further, the main frame portion 143 and the sub frame portion 153 are connected by the reinforcing frame 143a.

  The embodiment shown in FIG. 9 uses a main frame portion 14 having a narrow width that can be positioned between the thighs of the person being assisted 1 in the embodiment of FIG. The frame part 144 is configured to be located on both sides of the person being assisted. Specifically, in the assistance transfer device 104 shown in FIG. 9, the main frame portion 144 in the frame 134 has a portal shape, and the sub-frame portion 154 is attached to the pair of columnar portions 144 a of the main frame portion 144 at an acute angle. It is configured. The pair of columnar portions 144a and the pair of subframe portions 154 of the main frame portion 144 are connected and reinforced by rod-shaped portions 144c and 154b, respectively.

  The front wheel portion 114 is attached to the lower end portions of the pair of sub frame portions 154, and the rear wheel portion 124 is attached to the lower end portions of the pair of columnar portions 144 a of the main frame portion 144. For this reason, the assisting transfer device 104 of this embodiment differs from the assisting transfer devices 10, 100, 101, 102, 103 described in FIGS. 1 to 8 in that the two wheels 114 a of the front wheel portion 114 are separated from each other. Grounded and more stable. Note that the placement portion 16 is anchored to a hook portion 244 provided on the bowl-shaped portion 144 b of the main frame portion 144.

  In the present embodiment, the columnar portion 144a and the sub-frame portion 154 of the main frame portion 144 are connected to each other by a linear bowl-shaped portion 144b and rod-shaped portions 144c and 154b, respectively, but the columnar portion of the main frame portion 144 144a and the sub-frame portions 154 may be connected to each other, and the shape thereof can be changed as appropriate.

  For example, as shown in FIG. 10, the hook-shaped portion 145b of the main frame portion 145 may be curved, or the sub-frame portion 155 and the rod-shaped portion 145c may be curved, although not shown. Moreover, the front side end of the sub-frame part 155 may be directly connected, and one front wheel part 115 may be provided in the connection part. Further, although not shown, the columnar portions 145a may be directly connected to each other at the hook portion 245 without providing the flange-shaped portion 145b of the main frame portion 145.

  The embodiment shown in FIG. 11 has a configuration in which the main frame portion is divided into two at the connecting portion in the frame in the fourth embodiment. In the assisting transfer device 106 shown in FIG. 11, the main frame portion 146 includes a portion in which a pair of columnar portions 146a and a flange-shaped portion 146b are integrated, and a pair of columnar portions 146d and a rod-shaped portion 146c. The portion is a structure connected by a connecting portion 196. Thus, in the present invention, the main frame portion may be divided.

Further, although not shown, the columnar portion 146d of the main frame portion 146 and the columnar portion 156a of the sub-frame portion 156 are integrated into a “部分” shape, and the columnar shape of the main frame portion 146 is formed in this integrated portion. The portions 146a may be connected from above, and in this case as well, the divided columnar portions 146a and 146d are the main frame portions 146.

DESCRIPTION OF SYMBOLS 1 Assisted person 2 Seat 3 Wheelchair 4 Band 5 Tipping lever 10 Assistance transfer device 11 Front wheel part 11a Wheel 11b Base part 12 Rear wheel part 12a Wheel 12b Base part 13 Frame 14 Main frame part 15 Subframe part 16 Placement Part 17 Foot rest part 18 Movable frame part 18a Connection pin 19 Connection part 20 Seat part 20a Suspension part 21 Band part 22 Transport connection part 22a Connection pin 23 Button with convex spring 24 Bracket 25 Knee pad 26 Handle 26a Connection pin 27 Guide Member 28 Auxiliary leg 100 Assistance transfer device 130 Frame 140 Main frame portion 101 Assistance transfer device 131 Frame 141 Main frame portion 102 Assistance transfer device 132 Frame 142 Main frame portion 152 Subframe portion 152a Reinforcing member 152b Connecting pin 1 2c Connecting pin 152d Locking pin 172 Foot rest 192 Connecting portion 242 Bracket 103 Assistance transfer device 113 Front wheel portion 123 Rear wheel portion 133 Frame 143 Main frame portion 143a Reinforcement frame 153 Subframe portion 243 Bracket 104 Assistance transfer device 114 Front wheel portion 114a Wheel 124 Rear wheel portion 124a Wheel 134 Frame 144 Main frame portion
144a Column-shaped portion 144b Bowl-shaped portion 144c Rod-shaped portion 154 Sub-frame portion 154a Column-shaped portion 154b Rod-shaped portion 244 Hook portion 105 Assistance transfer device 115 Front wheel portion 115a Wheel 125 Rear wheel portion 125a Wheel 135 frame 145 Main column portion 145a 145b Hook-shaped portion 145c Bar-shaped portion 155 Sub-frame portion 155a Column-shaped portion 245 Hook portion 106 Assistance transfer device 116 Front wheel portion 116a Wheel 126 Rear wheel portion 126a Wheel 136 Frame 146 Main frame portion 146a Column-shaped portion 146b Rod-shaped portion 146b Part 146d Columnar part 156 Sub-frame part 156a Columnar part 156b Bar-shaped part 196 Connecting part 246 Hook part 276 Guide member A Fixing position B Supporting position

Claims (8)

A rear wheel part that rotatably supports two or more wheels, and a front wheel part that rotatably supports one or more wheels provided spaced apart in the front-rear direction with respect to the rear wheel part;
Wherein the traveling direction of the rear wheel portion wheel main frame portion extending upwardly with attached to the lower end in a fixed state in the front-rear direction, together with the front wheel unit is mounted so as to be positioned a wheel downward A sub-frame portion coupled to the main frame portion so that the angle can be fixed , and a frame including a movable frame portion having a footrest portion ;
Including a placement unit supported on an upper portion of the main frame portion for placing a person being assisted
The traveling direction of the front wheel portion can be changed,
When the front and rear wheels are in a grounded state, the support position (B) of the mounting portion in the upper part of the main frame portion is located between the front wheel portion and the rear wheel portion in the front and rear direction, and The fixed position (A) of the lower end of the main frame part with respect to the rear wheel part is located behind the support position (B) of the mounting part in the front-rear direction,
The assisting transfer device , wherein the movable frame portion is swingably attached to an upper portion of the main frame portion . Wherein the frame, the main frame portion and said sub frame unit, care for ERROR instrument according to claim 1, characterized in that it has a releasable structure coupling state of fixing the articulation angle. The assisting transfer device according to claim 2 , wherein the frame has a structure in which the main frame part and the sub-frame part are detachably connected. The assisting device according to claim 2 , wherein the frame has a structure in which the sub-frame portion is rotatable with respect to the main frame portion at a connection portion between the main frame portion and the sub-frame portion. Transfer device. The main frame portion is a structure having a straight or substantially straight shape when viewed from the side, and is provided at the center of the assisting transfer device when viewed from the front and rear direction. claim 1, claim 2, ERROR instrument for assistance according to claim 3 or claim 4, wherein it has a possible width to be located between parts. The mounting portion is made of a flexible material, and is capable of supporting at least the waist and thighs of the person being assisted, one end attached to the seat, and the other end being the main frame portion. The assisting transfer device according to claim 1, 2, 3, 4, or 5 , further comprising: a band portion supported by the support portion. The assistance according to claim 1, 2, 3, 4, 5, or 6 , wherein the front wheel portion has omnidirectional wheels that can move in all directions. Transfer device. The support according to claim 1, claim 2, claim 3, claim 4, claim 5, claim 6, or claim 7 , wherein the frame has a transport connecting portion connectable to a wheelchair. Transfer device.

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