JP2016202823A - Movement assist tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movement assist tool which allows a person to be assisted who requires assist of movement, to easily move into a device.SOLUTION: A movement assist tool comprises: a travel base 3 capable of travelling by wheels 17a, 17b, 19a, 19b; a seat surface support frame 35 disposed on the travel base 3; and a seat surface part 13 having a seat surface where a person to be assisted seats on, and being disposed on the seat surface support frame 35. The travel base 3 comprises a lower side frame 9 for connecting lower parts of a front travel unit 5 comprising the wheels 17a, 17b as front wheels, and a rear travel unit 7 comprising the wheels 19a, 19b as rear wheels and separated from the front travel unit 5. The side frame 9 is provided on one side of the travel base 3 in a device width direction and an opening hole 3a for opening a gap between the front travel unit 5 and the rear travel unit 7 is provided on the other side of the device width direction, movement of the person to be assisted from the opening hole 3a to the gap between the front travel unit 5 and the rear travel unit 7 can be achieved.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a movement assist device that is provided for nursing care or the like and performs movement assistance such as walking assistance of an assistant.

  In the care and rehabilitation of the assistance person who has a walking disorder, the walking assistance device which assists the assistance person's walk by supporting the standing body of the standing assistance person is known as a movement assistance device. .

  Patent Document 1 discloses a parallel link seat raising / lowering walking vehicle as this type of walking aid. In this walking car, the seat portion is supported by a parallel link so as to be movable up and down, and the assistant can sit on the seat portion and perform a walking motion or a standing motion.

  The care assisting device of Patent Document 2 allows an assistant to be placed on the insertion member by inserting the insertion member of the seat portion between the bed and the assistant on it, and facilitates transfer of the assistant. can do. After the transfer, the insertion member can be raised to function as a walking assist device that assists the person being walked.

  Each of these devices is provided with a frame on the traveling base to which the wheels are attached so as to cross the front and rear in the traveling direction at the positions on the left and right sides in the width direction.

  For this reason, when a person who needs assistance is moving into the device from the width direction of the device, such as when the legs cannot be lifted, it is very difficult.

JP 2004-8464 A JP 2013-31635 A

  The problem to be solved is that when a person who needs assistance is moving into the apparatus, there is a great difficulty.

  The present invention provides a rear traveling unit that includes a front traveling unit having a front wheel and a rear wheel and is separated from the front traveling unit so that a person who needs assistance with walking can easily move into the apparatus. A front base unit and a rear base unit provided on the other side of the travel base by disposing the side frame on one side of the travel base. And an opening that opens between the front traveling unit and the rear traveling unit through the opening.

  Since the present invention has the above-described configuration, the front traveling unit and the rear traveling unit are coupled by the side frame, and it is possible to assist the person being supported as a movement assisting device. It is possible to move a person who needs assistance, such as being unable to lift a foot, for example.

It is the perspective view seen from the right side of a standing assistance walk auxiliary device. Example 1 It is a left view of a standing assistance walk auxiliary device. Example 1 It is a top view of a standing assistance walk auxiliary device. Example 1 It is the front view which removed the side frame and looked at the rear traveling unit from the body front. Example 1 It is a front view of a standing assistance walk auxiliary device. Example 1 It is a decomposition | disassembly left view of the relationship between a front traveling unit and a rear traveling unit, and a side frame. Example 1 It is a front view of a front traveling unit. Example 1 It is a front view of a rear traveling unit. Example 1 It is a side view of a side frame. Example 1 It is a top view of a side frame. Example 1 It is a top view of a horizontal reinforcement bar. Example 1 In relation to the longitudinal reinforcement bar, (A) is a front view and (B) is a longitudinal sectional view. Example 1 It is a front view of a side frame joint. Example 1 In relation to the side frame joint, (A) is a rear view and (B) is a longitudinal sectional view. Example 1 It is a principal part expanded side view which shows the coupling | bonding of a side frame and a rear traveling unit. Example 1 It is a front view in the seat surface part storage position which shows the seat surface part supported by the raising / lowering mechanism. Example 1 It is a left view in the seating surface storing position which shows the seating surface part supported by the raising / lowering mechanism. Example 1 It is a rear view of the raising / lowering frame which shows a switchboard. Example 1 It is a front view of a switchboard. Example 1 It is a top view of the seat surface part of a seating position. Example 1 20A is a cross-sectional view at the right transfer position, FIG. 20B is a cross-sectional view at the seating position, and FIG. 20C is a cross-sectional view at the left transfer position. is there. Example 1 It is sectional drawing which concerns on the locking mechanism shown by the XXII-XXII line arrow of FIG. Example 1 20A is a sectional view showing the lock mechanism at the right transfer position, and FIG. 20B is a lock mechanism at the seating position. It is sectional drawing. Example 1 (A) is sectional drawing at the time of lock release in a seating position, (B) is sectional drawing of the locked state in a left transfer position. Example 1 It is a principal part perspective view of the standing assistance walk auxiliary device which shows the use condition in the transfer position of a seat surface board. Example 1 It is a side view which shows the coupling | bonding of a side frame. (Example 2) It is a top view which shows fitting of a side frame. (Example 2) It is a transverse cross section showing fitting of a side frame. (Example 2) In relation to the front joint, (A) is a side view, (B) is a front view, and (C) is a plan view. (Example 2) In relation to the front side frame joint, (A) is a side view, (B) is a front view, (C) is a plan view, and (D) is a bottom view. (Example 2) In connection with the coupling of the front joint and the side frame joint, (A) is a side view before coupling, (B) is a side view in the middle of coupling, and (C) is a side view in the coupled state. (Example 2)

  The lower side frame of the front traveling unit with the front wheels and the rear traveling unit with the rear wheels are connected to each other by the lower side frame for the purpose of making it possible for the assisted person who needs assistance to move easily into the device. The travel base is realized by a movement auxiliary device in which a side frame is arranged on one side of the travel base and an opening is provided on the other side to open the front travel unit and the rear travel unit.

  In the movement assistance device, the person to be assisted can be moved between the front traveling unit and the rear traveling unit from the opening.

  The side frame has a coupling part for detachably coupling to the front traveling unit and the rear traveling unit, and the front traveling unit and the rear traveling unit have a coupled part for detachably coupling the side frame. You may prepare for both the one side and the other side of a traveling base. In this case, it is possible to switch the side frame coupling from one side to the other side and switch the opening from the other side to the one side. However, the side frame may be fixed to the front traveling unit and the rear traveling unit so as not to be detachable.

  The coupled portion has the same structure, and includes a front joint provided in the front traveling unit and a rear joint provided in the rear traveling unit, and the coupling portion includes side frame joints provided at the front and rear ends in the traveling direction of the side frame. You may prepare. In this case, the front joint, the rear joint, and the side frame joint have a butting surface in which the up and down direction that abuts each other in the longitudinal direction is relatively longer than the instrument width direction. Between the joints, there may be provided an insertion part for inserting and coupling a fastener for maintaining the butting of the butting surface or each side frame joint to the front joint and the rear joint in a direction parallel to the butting surface.

  When the insertion part is provided, for example, one of the side frame joint, the front joint and the rear joint is provided with a convex part protruding forward and backward in the running direction, and the other part is provided with a concave part that can be fitted by insertion in the vertical direction. Just do it. In the fitting shape on the distal end side with respect to the base end of the convex portion, the concave portion and the convex portion need to be provided with, for example, a portion that swells in the container width direction intersecting the insertion direction to prevent the recess in the traveling direction. As long as the insertion direction is a direction parallel to the butting surfaces, the insertion direction can be changed as appropriate, for example, in the instrument width direction, or in an oblique direction with respect to the instrument width direction and the vertical direction.

  The side frame may have a configuration in which frame members extending in the front and rear directions in the running direction are provided side by side. The traveling base may include upper and lower skeleton members of the front traveling unit and the rear traveling unit corresponding to the upper and lower skeleton members.

  The movement assisting device has a seating surface support frame provided upright on the traveling base, and a seating surface that is arranged on the seating surface support frame and seated by a person being supported. And a seat surface portion that is movable to the outside in the instrument width direction with respect to the seating position, and a lift that supports the seat surface portion movably by an actuator between a seating position in the vertical direction and an upper position with respect to the seating surface support frame. And a mechanism.

[Standing support walking aid]
FIG. 1 is a perspective view of the standing assistance walking aid from the right side, FIG. 2 is a left side view of the standing assistance walking aid, FIG. 3 is a plan view of the standing assistance walking aid, and FIG. 4 is a side frame. 5 is a front view of the rear frame as seen from the front of the body, FIG. 5 is a front view of the standing support walking assist device, and FIG. 6 is an exploded left side view of the relationship between the front traveling unit and the rear traveling unit and the side frame. FIG. 7 is a front view of the front traveling unit, FIG. 8 is a front view of the rear traveling unit, and FIG. 9 is an enlarged side view of the main part showing the coupling of the side frame and the rear traveling unit.

  In the following description, the front and rear in the traveling direction are the front and rear in the traveling direction of the standing assistance walking assist device, and may be simply referred to as front and rear. The vessel width direction is a width direction that goes straight in the longitudinal direction of travel of the standing assistance walking assist device, and the left and right are the left and right in the vessel width direction when going straight. The vertical direction is the direction of gravity of the standing assisting walking aid in the horizontal grounding state.

  As shown in FIGS. 1 to 5, the standing assisting walking assist device 1 according to the embodiment of the present invention includes a traveling base 3, a front traveling unit 5, a rear traveling unit 7, a side frame 9, a front support 11, A seat surface portion 13 and a stomach bar 15 are provided. In addition, the standing assistance walk assist device 1 is an example of a movement assist device, and a lifting mechanism described later for standing support may be omitted, and a structure not performing standing support may be employed.

  The traveling base 3 of the standing assistance walking assist device 1 is composed of a lower portion of the front traveling unit 5 and the rear traveling unit 7 and a right side frame 9 in the embodiment. The traveling base 3 has an inverted C shape that is opened between the front traveling unit 5 and the rear traveling unit 7 on the left side when viewed from above, and allows an assistant to enter and exit through an inverted C-shaped opening 3a. . The relationship between the lower portions of the front traveling unit 5 and the rear traveling unit 7 and the right side frame 9 will be described later.

  The traveling base 3 includes wheels 17a, 17b, 19a, and 19b. The wheels 17a and 17b are supported by the front traveling unit 5 as front wheels. The wheels 19a and 19b are supported by the rear traveling unit 7 as rear wheels.

  As shown in FIGS. 1 to 3 and FIGS. 5 to 7, the front traveling unit 5 is formed of metal, resin, fiber reinforced plastic (GFRP, CFRP), or the like, and includes a pipe lower front member 21 and an upper front member 23. And front pillars 25a and 25b.

  As for the lower front member 21, the front part crosses right and left, and the right and left rear part inclines back and downward. A front base panel 27 is fixed on the front portion of the lower front member 21. The wheels 17a and 17b are attached to the lower surface of the front base panel 27 by casters 17aa and 17ba so that the direction can be changed.

  The upper front member 23 has a front portion that extends left and right above the lower front member 21, and a left and right rear portion that is inclined rearward and downward.

  Front joints 29 a and 29 b as coupled portions are fixed to the left and right rear ends of the lower front member 21 and the upper front member 23. The front joints 29a and 29b have a block shape, are formed in a rectangular cross section and have a width on the left and right sides, and are formed so that the top and bottom are relatively longer than the width. The front joints 29a and 29b are provided with flat abutting surfaces 29aa and 29ab that abut against a side frame joint, which will be described later, facing rearward along the top and bottom.

  The front pillars 25a and 25b are arranged in parallel to the left and right intermediate portions of the front armor unit 5, and are inclined rearward at an angle θ1 with respect to the vertical direction. The lower ends of the front pillars 25 a and 25 b are coupled to the front base panel 27, and the rear is coupled to and supported by the upper front member 23 above the front base panel 27. The front pillars 25a and 25b have a double structure, and include an outer cylindrical front pillar lower 25aa and 25ba and an inner cylindrical front pillar upper 25ab and 25bb which are nested in the front pillar lower 25aa and 25ba.

  The front support portion 11 is attached to the upper ends of the front pillars 25a and 25b, and the stomach bar 15 is supported at the middle portion.

  The front support unit 11 supports, for example, the left and right forearms of the person being assisted on the front side of the body, and supports the walking posture. The front support portion 11 includes left and right elbow support portions 11a and 11b separately. The left and right elbow support portions 11a and 11b can be adjusted to adjust the front and rear inclination and the vertical position separately from each other by the movable structure of the front and rear inclination adjustment mechanisms 28a and 28b and the vertical position adjustment mechanisms 30a and 30b.

  The front and rear tilt adjustment mechanisms 28a and 28b are provided between the left and right front pillar uppers 25ab and 25bb and the left and right elbow support portions 11a and 11b, respectively, so that the left and right elbow support portions 11a and 11b can be separately adjusted for front and rear tilt. .

  The vertical position adjusting mechanisms 30a and 30b are provided at the upper ends of the front pillar lowers 25aa and 25ba, and can adjust the vertical positions of the front pillar uppers 25ab and 25bb relative to the front pillar lowers 25aa and 25ba. By adjusting the vertical positions of the front pillar uppers 25ab and 25bb, the vertical positions of the left and right elbow support portions 11a and 11b can be adjusted separately.

  In addition to the front / rear tilt adjustment mechanisms 28a, 28b and the vertical position adjustment mechanisms 30a, 30b, a left / right tilt position adjustment mechanism may be added. Furthermore, adjustment by these selective combinations can be performed. In the combination of the front / rear inclination adjustment mechanisms 28a, 28b and the vertical position adjustment mechanisms 30a, 30b and the left / right inclination position adjustment mechanism, the elbow support portions 11a, 11b can be freely adjusted in the XYZ directions (up / down, front / rear, left / right directions), respectively. Can do. For adjustment in the XYZ directions, a ball bearing structure can be adopted.

  The stomach bar 15 is attached to the front pillar lowers 25aa and 25ba, and protrudes toward the rear traveling unit 7 or the seat surface 13 side. The stomach bar 15 can adjust the protruding position toward the seat surface portion 13 by adjusting expansion and contraction. The stomach bar 15 is inclined at an angle θ2 (> θ1) with respect to the front pillars 25a and 25b.

  As shown in FIGS. 1 to 6 and 8, the rear traveling unit 7 is formed of metal, resin, fiber reinforced plastic (GFRP, CFRP), and the like, and includes a lower rear member 31, an upper rear member 33, and a seating surface that are pipe materials. And a support frame 35.

  At the front ends of the lower rear member 31 and the upper rear member 33, rear joints 36a and 36b as fixed portions are fixed. The rear joints 36a and 36b are block-shaped, have a rectangular cross section, have a width on the left and right, and are formed to be relatively long above and below the width. The rear joints 36a and 36b are provided with flat abutting surfaces 36aa and 36ba that abut against a side frame joint, which will be described later, facing forward in the vertical direction.

  The lower rear member 31 and the upper rear member 33 are coupled by connecting members 37a and 37b and rear joints 36a and 36b. A lower rear base panel 41 is fixed on the lower rear member 31, and an upper rear base panel 42 is fixed on the upper rear member 33.

  The upper rear member 33 is set to the same height as the front portion of the lower front member 21, and the upper rear base panel 42 is on the same plane as the front base panel 27.

  Shaft support portions 43a and 43b are provided on the left and right portions of the lower rear base panel 41, and the rear wheels 19a and 19b are rotatably supported by the shaft support portions 43a and 43b.

  The rear wheels 19a and 19b are connected to brake units 39a and 39b, which are speed-reducing brakes shown in FIG. 4 and the like, respectively, and are provided with rear wheel locking mechanisms 45a and 45b shown in FIGS. By the deceleration brake, friction is always applied to the rear wheels 19a, 19b, and the traveling speed by the traveling base 3 is automatically limited. However, the deceleration brake can be omitted, and the movement in the empty state can be facilitated. The rear wheels 19a and 19b can be locked and unlocked by the rear wheel locking mechanisms 45a and 45b.

  The seating surface support frame 35 includes left and right rear pillars 35a and 35b, the rear pillars 35a and 35b are fixed to the upper rear base panel 42, and the reinforcing brackets 44a and 44b are connected to the upper rear base panel 42 and the left and right rear pillars 35a and 35b. It is attached to reinforce the gap.

  The seating surface support frame 35 is provided to stand on the rear side in the traveling direction of the traveling base 3 in this attached state, and is inclined rearward at an angle θ3 (<θ1) with respect to the vertical direction. The tilt angle θ3 of the rear pillars 35a and 35b may be set equal to the tilt angle θ1 of the front pillars 25a and 25b (θ3 = θ1). The upper portions of the rear pillars 35a and 35b are coupled by an upper rear cross member 35c. A handle bar 35d is attached below the upper rear cross member 35c and between the upper portions of the rear pillars 35a, 35b, and protrudes rearward of the seating surface support frame 35.

  The seat surface portion 13 is supported by the rear pillars 35a and 35b of the seat surface support frame 35 so as to be movable up and down.

[Side frame]
9 is a side view of the side frame, FIG. 10 is a plan view of the side frame, FIG. 11 is a plan view of the horizontal reinforcement bar, FIG. 12 is related to the vertical reinforcement bar, and (A) is a front view. , (B) is a longitudinal sectional view, FIG. 13 is a front view of the side frame joint, FIG. 14 is related to the side frame joint, (A) is a rear view, and (B) is a longitudinal sectional view, FIG. These are the principal part expanded side views which show the coupling | bonding of a side frame and a rear traveling unit.

  The side frame 9 shown in FIGS. 1 to 15 is formed of metal, resin, fiber reinforced plastic (GFRP, CFRP) or the like, and has a plate-like shape between a pair of upper and lower pipes 49a and 49b that are skeleton members as shown in FIG. A horizontal reinforcement bar 49c is also provided. Side frame joints 49d and 49e as connecting portions are attached to the front and rear ends of the pipes 49a and 49b and the horizontal reinforcement bar 49c, and a vertical reinforcement bar 49f is attached to the intermediate portion.

  The horizontal reinforcement bar 49c, the side frame joints 49d and 49e, and the vertical reinforcement bar 49f are formed to have the same width as shown in FIG. 10, and the diameters of the upper and lower pipes 49a and 49b are the width of the horizontal reinforcement bar 49c and the like. Smaller dimensions.

  The horizontal reinforcement bar 49c is formed in a long rectangular plate shape as shown in FIG. 11, and a rectangular recess 49ca is formed on one side of the center in the longitudinal direction. The width of the concave portion 49ca is formed in accordance with the plate thickness of the vertical reinforcement bar 49f and is fitted to the vertical reinforcement bar 49f.

  The vertical reinforcement bar 49f is formed of a plate material or a block material whose upper and lower sides are cut in a semicircular shape as shown in FIG. The vertical reinforcement bar 49f is formed with insertion holes 49fa and 49fb in the vertical direction, and a rectangular recess 49fc is formed on one side of the center in the vertical direction. The width of the recess 49fc is formed in accordance with the thickness of the lateral reinforcement bar 49c, and is fitted to the lateral reinforcement bar 49c.

  Specifically, the concave portion 49ca of the horizontal reinforcement bar 49c and the concave portion 49fc of the vertical reinforcement bar 49f are engaged with each other, the concave portion 49ca is fitted to the vertical reinforcement bar 49f, and the concave portion 49fc is fitted to the horizontal reinforcement bar 49c. Together, they are combined as shown in FIGS. 9 and 10 and the corners between them are fixed by welding or the like.

  The pipes 49a and 49b are separately inserted into the upper and lower insertion holes 49fa and 49fb of the vertical reinforcement bar 49f, and the corners between the vertical reinforcement bar 49f and the pipes 49a and 49b are fixed by welding or the like. Yes.

  The side frame joints 49d and 49e have the same structure, and the side frame joint 49d (49e) has a rectangular cross section. The side frame joint 49d (49e) is formed in a substantially same outer shape as the longitudinal reinforcement bar 49f as shown in FIGS. 13 and 14 when viewed from the front-rear direction, and is a plate whose upper and lower sides are cut into a semicircular shape. Or it is formed with the block material. For this reason, the side frame joint 49d (49e) has the same outer shape as the front joints 29a and 29b and the rear joints 36a and 36b when viewed from the front-rear direction.

  The front joints 29a and 29b and the rear joints 36a and 36b are formed of a plate material or a block material whose cross section is thicker than that of the side frame joint 49d (49e), and the frame structure of the front traveling unit 5 and the rear traveling unit 7. Reinforcement of is planned.

  In the side frame joints 49d and 49e, flat abutting surfaces 49da and 49ea are formed along the up-and-down direction so that the up-and-down direction is longer than the instrument width direction and abut each other in the front-rear direction. The butted surfaces 49da and 49ea have the same outer shape as the butted surfaces 29aa, 29ab, 36aa, and 36ab.

  In the side frame joint 49d (49e), four through holes 49db (49eb), 49dc (49ec), 49dd (49ed), and 49de (49ee) are formed in the vertical direction. In FIGS. 13 and 14, a side frame joint 49d is shown, and the side frame joint 49e is indicated by a reference numeral in parentheses.

  The side frame joint 49d (49e) has a shallow countersunk portion 49df (49ef) that is positioned vertically corresponding to the through holes 49db (49eb), 49dc (49ec), 49dd (49ed), and 49de (49ee). 49dg (49eg) and countersinks 49df (49ef), 49dg (49eg) located in the middle and smaller in diameter than the 49dg (49eg) and deep in the front and back are formed on the back side 49dh (49eh), 49di (49ei) Has been. The diameters of the countersunk portions 49df (49ef) and 49dg (49eg) correspond to the outer diameters of the pipes 49a and 49b, and the diameters of the countersink portions 49dh (49eh) and 49di (49ei) are outside the bolt head for fastening. It corresponds to the diameter.

  A shallow groove portion 49dj (49ej) is formed in the width direction at the center of the side frame joint 49d (49e) in the vertical direction. The depth of the shallow groove portion 49dj (49ej) is approximately the same as the countersink portions 49df (49ef) and 49dg (49eg).

  Accordingly, the side frame joint 49d (49e) is arranged as shown in FIGS. 9 and 10, and the shallow countersink portions 49df (49ef) and 49dg (49eg) are fitted into the ends of the pipes 49a and 49b, and the shallow groove portion is provided. 49dj (49ej) is assembled by fitting it into the end of the horizontal reinforcement bar 49c, and the corners between them are fixed by welding or the like.

  1 to 3 and 6, the side frame 9 is disposed between the front joint 29b and the rear joint 36b. In this arrangement state, the butted surfaces 49da and 49ea of the side frame joints 49d and 49e are separately butted against the butted surfaces 29ba and 36ba of the front joint 29b and the rear joint 36b, and are fastened and coupled.

  This coupling structure is the same between the joints, and a fastening structure between the side frame joint 49e and the rear joint 36b will be described with reference to FIG.

  In FIG. 15, the side frame joint 49e seems to be fastened and coupled to the left rear joint 36a. However, as shown in FIGS. 1 to 3, the side frame joint 49e is fastened to the rear joint 36b. FIG. 15 shows the structure as a left side view. In the figure, the side frame joint 49e is fastened to the rear joint 36b.

  In the side frame joint 49e, pins 59a and 59b are previously attached to the upper and lower through holes 49db (49eb) and 49de (49ee). At the time of fastening connection, the pins 59a and 59b of the side frame joint 49e are fitted to the bushes 57a and 57b of the rear joint 36b for positioning. The bushes 57a and 57b and the pins 59a and 59b are concentric with the pipes 49a and 49b.

  In this positioning state, the bolts 59c and 59d inserted from the back side into the through holes 49dc, (49ec) and 49dd (49ed) in the middle part from the side frame joint 49e side are screwed into the female thread part of the rear joint 36b, and the side frame joint 49e is fastened and coupled to the rear joint 36b. The side frame joint 49d is fastened to the front joint 29b in the same manner.

  By this fastening connection, the front traveling unit 5 and the rear traveling unit 7 are integrally coupled by the side frame 9, and the standing support walking assist device 1 including the traveling base 3 is configured.

[Action of side frame]
By the fastening connection using the side frame 9, the side frame joint 49d and the side frame joint 49e are flat to the front joint 29b and the rear joint 36b. , 49ea.

  In addition to the butt coupling at the butting surfaces 29ba and 36ba and the butting surfaces 49da and 49ea, the side frame 9 itself is also coupled by parallel pipes 49a and 49b in which the side frame joint 49d and the side frame joint 49e are vertically spaced apart. Reinforced by the force bar 49c and the vertical rain force bar 49f, it has high rigidity in the vertical and front-rear and left-right directions.

  Furthermore, the front traveling unit 5 includes a lower front member 21 and a front base panel 27, an upper front member 23, front pillars 25a and 25b, and front joints 29a and 29b that are joined together by welding or the like and closed when viewed from the side. It has a cross-sectional structure and constitutes a highly rigid frame structure in the top, bottom, front, back, left and right.

  The rear traveling unit 7 includes a lower rear member 31 and a lower rear base panel 41, an upper rear member 33 and an upper rear base panel 42, connecting members 37a and 37b, and rear joints 36a and 36b that are joined together by welding or the like. As seen from above, it has a closed cross-sectional structure, and has a highly rigid frame structure in the top, bottom, front, back, left and right.

  In the coupled state, the pipe 49 a of the side frame 9 is positioned at the same height as the upper rear member 33, and the pipe 49 b is positioned at the same height as the lower rear member 31. The rear end of the inclined upper front member 23 of the front traveling unit 5 is slightly lower with respect to the pipe 49a on the side frame 9, and the front traveling unit 5 is in front of the pipe 49b below the side frame 9. The rear end of the inclined lower front member 21 of the unit 5 is slightly higher.

  Therefore, the above-described fastening structure using the side frames 9 can provide the traveling base 3 with a highly rigid frame structure. In addition, due to the highly rigid frame structure, the thickness, diameter, width, etc. of each part can be reduced, and the overall weight of the apparatus can be reduced.

  Further, the side frame 9 is located on one side, for example, the right side of the traveling base 3 in the instrument width direction, and has an opening 3a that is open between the front joint 29a and the rear joint 36a on the other side in the instrument width direction, for example, the left side. It is configured to be equipped.

  Accordingly, it is possible to move the person being assisted between the front traveling unit 5 and the rear traveling unit 7 through the opening 3a.

  The side frame 9 can be disposed between the left front joint 29a and the rear joint 36a and can be fastened and coupled in the same manner. In this case, an open port opened between the right front joint 29b and the rear joint 36b. It becomes the composition provided with. In this case, the traveling base 3 is C-shaped when viewed from the plane.

  The side frame 9 can be fixedly provided on the traveling base 3 on either the left or right side instead of the detachable structure.

[Elevating mechanism]
16 shows the seat surface portion supported by the lifting mechanism, and is a front view at the seat portion storing position. FIG. 17 shows the seat surface portion supported by the lifting mechanism, and is a left side view at the seat portion storing position. FIG. 19 is a rear view of the lifting frame showing the switchboard, and FIG. 19 is a front view of the switchboard.

  As shown in FIGS. 1 to 4, 16, and 17, the seating surface portion 13 is disposed on the seating surface support frame 35 and has a seating surface on which an assistant is seated. The seat surface portion 13 is supported by the seat surface support frame 35 by an elevating mechanism 61. The elevating mechanism 61 makes the seat surface portion 13 movable with respect to the seat surface support frame 35 by an actuator between a seating position and an upper position. The lifting mechanism 61 includes a lifting frame 62.

  The elevating frame 62 is formed in a rectangular frame shape by a skeleton member made of metal, resin, fiber reinforced plastic (GFRP, CFRP) or the like, and has a recess 62b (FIG. 18) on the back surface. A backrest 63 is attached to the front of the elevating frame 62 in the traveling direction. The backrest 63 includes a cushion 63a. The width of the backrest 63 is set to the width between the rear pillars 35 a and 35 b according to the lifting frame 62. A control board, which will be described later, is accommodated in a recess on the rear surface of the elevating frame 62 in the traveling direction, so that the space is effectively used.

  Limit switches 64 a and 64 b are attached to the upper surface of the elevating frame 62. A switch plate 65 is disposed on the upper side of the limit switches 64a and 64b. The switch plate 65 is movably supported on the upper surface of the elevating frame 62 by springs 66a and 66b. A stopper (not shown) is attached to the rear pillar 35 b of the seating surface support frame 35 corresponding to the switch plate 65. Further, the limit switch 64 a is also attached to the lower surface of the lifting frame 62.

  On both sides of the lifting frame 62 in the instrument width direction, rollers (not shown) are respectively attached at two upper and lower positions. The rollers are accommodated in the rear pillars 35a and 35b. As for the support shaft of the roller, the rear pillars 35a and 35b pass through a slit on the surface facing the lift frame 62, and the support shaft can be moved up and down along the slit.

  Accordingly, the roller rolls along the rear pillars 35a and 35b, and the raising and lowering frame 62 is guided along the rear pillars 35a and 35b by the rolling of the rollers.

  The seat surface portion 13 is attached to the backrest 63 on the front side of the lift frame 62, and the seat surface portion 13 moves up and down via the lift frame 62 by the actuator.

  As shown in FIGS. 1, 2, 4, 5, 15, and 18, the actuator includes an electric cylinder device 68. The electric cylinder device 68 is attached between the center in the width direction of the traveling base 3 and the center in the width direction of the elevating frame 62. The electric cylinder device 68 includes a housing 68a, a shaft 68b, an electric motor 68c, and the like.

  In the electric cylinder device 68, a housing 68a is rotatably supported by a shaft support portion 65d at the lower end on the electric motor 68c side. The shaft support portion 65d is disposed on the lower rear base panel 41. The shaft 68b of the electric cylinder device 68 is rotatably supported by a shaft support portion 62a attached to the lifting frame 62 (FIG. 18).

  The electric motor 68c is conductively connected to the control board 69 at the back of the lifting frame 62.

  As shown in FIGS. 18 and 19, the control board 69 is attached to the control board plate 73 together with the battery 70 and the charger 71, and the control board plate 73 is attached in the recess 62 b at the back of the lifting frame 62. With this attachment, the control board 69, the battery 70, and the charger 71 are collectively accommodated in the recess 62b.

  A controller 75 (FIGS. 1 and 25) for remotely controlling the drive control circuit is wired to the control board 69, and the controller 75 is detachably supported by the seating surface support frame 35. It can be gripped and operated. The controller 75 can also be wirelessly connected. The controller 75 may be fixedly provided on the seat support frame 35 or the like. The control board 69 can be provided with a key switch. If the assistant does not perform the unlocking operation with the key switch, the power supply does not start, the operation by the controller 75 can be invalidated, and the malfunction due to the erroneous operation of the person being assisted or the assistant can be prevented.

  By driving and controlling the electric motor 68c by the operation of the controller 75, the elevating frame 62 is raised and lowered between the lower limit position and the upper limit position along the seating surface support frame 35, and the seating surface portion 13 is relatively lowered to the seating position. And a relatively upper upper position.

  At the upper limit position of the elevating frame 62, the switch plate 65 contacts the stopper 35ba, the springs 66a, 66b are bent, and the switch plate 65 can operate the limit switches 64a, 64b. The operation of the limit switches 64a and 64b causes the control board 69 to stop the electric motor 68c, and the lifting frame 62 is positioned at the upper limit position.

[Sitting surface]
20 is a plan view of the seating surface portion at the seating position, FIG. 21 is related to the slide mechanism shown by the arrow XXI-XXI in FIG. 20, (A) is a cross-sectional view at the right transfer position, and (B). Cross-sectional view at the sitting position, (C) Cross-sectional view at the left transfer position, FIG. 22 is a cross-sectional view according to the lock mechanism shown by the arrow XXII-XXII in FIG. 20, and FIG. 23 is XXIII-XXIII in FIG. FIG. 24A is a sectional view showing the locking mechanism at the right transfer position, FIG. 24B is a sectional view showing the locking mechanism at the sitting position, and FIG. , (A) is a sectional view at the time of unlocking in the seating position, (B) is a sectional view in the locked state at the left transfer position, and FIG. 25 is a standing support walk showing the use state at the transfer position of the seating board. It is a principal part perspective view of an auxiliary device.

  As shown in FIGS. 1 to 4 and 16 to 25, the seat surface portion 13 includes a seat surface base 77, a seat surface plate 79, a seat surface movable mechanism 81, a seat surface lock mechanism 83, and armrests 85 a and 85 b. .

  The seat surface portion 13 protrudes toward the front traveling unit 5 with respect to the seat surface support frame 35 at the seating position (FIG. 2). The seat surface portion 13 has a rectangular shape that is long to the left and right, and the seat surface width before and after the traveling direction is set to be short so that natural standing support is possible. In this embodiment, for example, the seat surface width (front-rear direction width) is 200 mm. However, the seating surface width can be set so that the seating surface width is larger than 200 mm when the standing support walking assisting device 1 is large, and the seating surface width can be adjusted to a person with a large physique. The seating surface width is not limited to 200 mm, and can be set as appropriate according to the specifications of the standing assisting walking assist device 1 in addition to the physique of the person being assisted.

  A distance L is set between the distal end edge of the seat surface portion 13 and the distal end edge of the stomach bar 15 at the lower limit position of the seat surface portion 13, and the distance L gradually increases when the seat surface portion 13 rises along the rear pillars 35a and 35b. To do. Further, the relationship between the seat surface portion 13 and the stomach bar 15 can be adjusted by adjusting the expansion and contraction of the stomach bar 15.

  The seat base 77 is formed of an acrylic plate, a metal plate, a wood plate, etc., the main body 77a is rectangular in plan view, and a supported portion 77b is projected from the rear. The supported portion 77b is provided with shaft support portions 77ba and 77bb. The shaft support portions 77ba and 77bb are rotatably supported by the support brackets 86a and 86b of the backrest 63 so that the seat surface portion 13 can be flipped up. . The seat surface portion 13 is stored in a state along the seat surface support frame 35 by the raising of the seat surface base 77.

  The seat surface plate 79 is formed of a rectangular acrylic plate, a metal plate, a wood plate, or the like in plan view, and is disposed on the seat surface base 77 to constitute a seat surface. A cushion can also be provided on the seat surface plate 79 as long as it does not hinder transfer.

  The seat surface movable mechanism 81 supports the seat surface plate 79 so as to be movable with respect to the seat surface base 77 to a seating position and a transfer position shifted outward in the instrument width direction with respect to the seating position. The seating position of the present embodiment is the center of the left and right, and the transfer position is a position where the seat surface plate 79 protrudes left and right from the seat surface base 77 (FIGS. 20 to 24).

  The seat surface movable mechanism 81 includes two front and rear fixed sliders 87aa, 87ab, 87ba, 87bb and two front and rear movable slide rails 89a, 89b.

  The fixed sliders 87aa, 87ab, 87ba, 87bb are arranged on the seat surface base 77, and are arranged side by side on the left and right centers of the seat surface base 77 in the instrument width direction.

  The two front and rear movable slide rails 89a and 89b are formed to have a length over both ends of the seat surface plate 79 in the instrument width direction. The movable slide rails 89a and 89b also serve as reinforcement of the seating surface plate 79.

  The front movable slide rail 89a is fitted to the fixed sliders 87aa and 87ba, and the rear movable slide rail 89b is fitted to the fixed sliders 87ab and 87bb and slide-guided, and the seat plate 79 is attached to the seat base 77. Switch to the left and right in the instrument width direction.

  A recess 79a is formed on the lower surface of the seating surface plate 79, so that the weight of the seating surface plate 79 is reduced. The movable slide rails 89a and 89b are embedded in the same depth as the recess 79a. At the left and right ends of the slide rails 89a and 89b, the end portions of the seating surface plate 79 are engaging wall portions 79b and 79c, and the engaging wall portions 79b and 79c engage with the fixed sliders 87aa, 87ab, 87ba, and 87bb. By doing so, the right and left movement limit position of the seating surface plate 79 is determined.

  The seating surface locking mechanism 83 can lock the seating surface plate 79 with respect to the seating surface base 77 at the seating position in the center of the instrument width direction and the left and right transfer positions. The seating surface locking mechanism 83 includes lock recesses 91a, 91b, 91c, a claw portion 93, and an operation portion 95.

  The lock recesses 91a, 91b, and 91c are provided on the upper surface of the seating surface base 77, and are disposed at the left and right center and both left and right sides of the seating surface base 77 in the instrument width direction. The central locking recess 91a is for locking the seat plate 79 in the seating position. The left and right lock recesses 91b and 91c are for locking the seat plate 79 separately to the left and right transfer positions.

  The claw portion 93 is rotatably provided on the seat surface plate 79, and engages with any of the lock recesses 91a, 91b, 91c to lock the movement of the seat surface plate 79 in the lateral direction of the instrument width. The claw portion 93 is provided on the lock shaft 97. The lock shaft 97 is disposed along the vessel width direction so as to extend to the left and right at the rear portion of the seating surface plate 79, and is supported so as to be rotatable about the shaft.

  The operation part 95 is for operating the claw part 93 to release the lock by releasing the engagement with the lock recesses 91a, 91b, 91c. The operation unit 95 is configured by L-shaped handles 95a and 95b, and is coupled to both ends of the lock shaft 97 and arranged along both ends of the seat surface plate 79 in the instrument width direction. The L-shaped tip portions of the handles 95 a and 95 b are locked in the recesses on the front and rear intermediate portions of the seating surface plate 79. A torsion spring (not shown) is fitted to the lock shaft 97, and one arm of the torsion spring is engaged with the seat plate 79 side, and the other arm is engaged with the lock shaft 97 side.

  Accordingly, one of the handles 95a and 95b is lifted and the lock shaft 97 is rotated to allow the claw portion 93 to be detached from the lock recesses 91a, 91b and 91c. When one of the operating handles 95a and 95b is released, the lock shaft 97 is rotated by the urging force of the torsion spring. By this rotation, the claw portion 93 falls into the lock recesses 91a, 91b, 91c corresponding to the position, and the lock is performed. When the claw part 93 does not correspond to the lock recesses 91a, 91b, and 91c and is released from the handles 95a and 95b, the claw part 93 is moved to the lock recesses 91a and 91b by moving the seat plate 79. , 91c are similarly locked.

  The armrests 85a and 85b are supported on the arm support portions 99a and 99b by hinges. The arm support portions 99a and 99b are provided on the left and right sides of the backrest 63. Accordingly, the armrests 85a and 85b can be rotated to a position protruding forward on both sides of the backrest 63 as shown in FIGS. 1 to 3 and a retracted position along the backrest 63 as shown in FIGS. it can.

[Operation of seating surface]
As shown in FIG. 21, when the seating surface plate 79 is slid to the transfer position with respect to the seating surface base 77, one of the handles 95a and 95b is pulled up as shown in FIG.

  By this pulling up, the lock shaft 97 rotates and the claw portion 93 comes off from the lock recess 91 a, and the seat plate 79 can slide with respect to the seat base 77.

  In this state, when the operator operates the handle 95a or 95b and pulls it outward in the instrument width direction, the seat plate 79 is moved from the seating position shown in FIG. It slides as shown in FIG. This sliding movement is reliably and easily performed by the movable slide rails 89a and 89b of the seating surface plate 79 being guided with respect to the fixed sliders 87aa, 87ab, 87ba and 87bb of the seating surface base 77.

  When the seat surface plate 79 is slid to the transfer position, when the hand is released from either of the operated handles 95a and 95b, the rotation of the lock shaft 97 is returned by the biasing force of the torsion spring, and the claw portion 93 corresponds to the corresponding lock recess 91b, The transfer position of the seating surface plate 79 is locked by engaging with any of 91c.

[Transfer operation]
In the present embodiment, the side frame 9 does not exist on the left side of the traveling base 3, and there is an opening 3a. For this reason, as shown in FIG. 25, when the person to be captured is transferred from the chair or the bed to the standing assistance walking aid 1, the left side of the standing assistance walking aid 1 is placed on the chair (or bed or the like). The seat surface height of the seat surface portion 13 with respect to a chair or the like is adjusted by driving the electric motor 68c and driving the electric cylinder device 68 by operating the controller 75.

  After the seat surface height of the seat surface portion 13 is adjusted, the handle 95a is rotated as shown in FIG. 24 to unlock the seat plate 79 at the seating position, and the handle 95a is pulled as it is, as shown in FIG. Is slid to the transfer position with respect to the seating surface base 77.

  In this transfer position, the assistant on the chair can transfer the seat plate 79 at the transfer position by sliding the buttock laterally. The armrest 85a is previously rotated to the storage position along the backrest 63 as shown in FIG.

  At the time of this transfer, since the seating surface plate 79 protrudes from the seating surface base 77 and is in a cantilever state, the weight of the person being assisted acts on the seating surface plate 79 in the cantilever state.

  The seat surface plate 79 has movable slide rails 89a and 89b formed in a length extending across both ends of the seat surface plate 79 in the instrument width direction, and serves as reinforcement of the seat surface plate 79, so that the weight of the person being assisted can be reliably received. Can do.

  The weight received by the seat plate 79 in the cantilever state is input to the fixed sliders 87aa, 87ab, 87ba, 87bb from the movable slide rails 89a, 89b. Since the front and rear fixed sliders 87aa, 87ba, 87ab, 87bb shown in FIG. 21 are arranged in pairs on the left and right, the load applied to the free end side of the movable slide rails 89a, 89b is fixed sliders 87aa, 87ba, 87ab, It is reliably transmitted to the seat base 77 via 87bb.

  This input is transmitted to the upper rear member 33 by a closed cross-sectional structure as viewed from the left and right directions by the lower portions of the rear pillars 35a and 35b and the reinforcing brackets 44a and 44b and the upper rear base panel 42 shown in FIG. At this time, in the upper rear base panel 42, the input from the rear pillars 35a and 35b can be dispersed on the surface, and the dispersed load can be reliably transmitted to the entire upper rear member 33.

  The load transmitted to the upper rear member 33 includes the lower rear member 31 and the lower rear base panel 41, the upper rear member 33 and the upper rear base panel 42, the connecting members 37a and 37b, the rear joint 36a, and the like shown in FIG. 36b is received by the closed cross-section structure part seen from the front.

  Accordingly, the weight input to the cantilever seat plate 79 during the transfer of the assistant can be reliably received by the rigid frame structure, and the transfer of the assistant can be stably performed without the seat plate 79 wobbling. Can be done.

  When the person to be assisted is transferred to the seating surface plate 79 in the cantilever state, the load is biased to the left side of the standing assistance walking assist device 1 in this embodiment. In this case, the center of gravity of the standing assisting walking assist device 1 is at a low position on the right side because the center of gravity of the standing assisting walking assist device 1 is at a low position on the traveling base 3 side and the side member 9 is on the right side. For this reason, even if the transfer operation is performed at the left opening 3a, the weight of the assistant can be stably received by the cantilever seat plate 79, and the assistant can be stably transferred. Can do.

  The feet of the person being assisted at the time of transfer to the seating surface plate 79 can be inserted in a sliding state without lifting the foot between the front traveling unit 5 and the rear traveling unit 7 through the opening 3a. For this reason, even an assistant who does not have muscular strength easily sits on the seat surface portion 13 from a chair, a bed, or the like and moves between the front traveling unit 5 and the rear traveling unit 7 very easily. be able to.

  After the transfer to the seat surface portion 79, as shown in FIG. 24, the lock of the seat surface plate 79 in the transfer position is released by the handle 95a, and the seat surface plate 79 is slid back to the seating position to return the support person to stand. Transfer to the walking aid 1 can be completed.

  At this time, the assistant can also apply force to move toward the seating position while grasping the stomach bar 15 or holding the stomach bar 15, and can move while shifting the foot at the opening 3a, Similarly to the above, there is no need to lift the feet, and easy transfer is possible.

  When the seat surface plate 79 slides to the seating position, the claw portion 93 of the seat surface lock mechanism 83 falls in the lock recess 91a, and the seat surface plate 79 is locked to the seat surface base 77. During this sliding movement, the weight of the person being assisted can be reliably supported by the seat surface portion 13 by the same load transmission as described above. In this manner, the transfer operation of the assistant to the seating position via the slide of the seating surface plate 79 can be performed reliably and stably.

  After the seating surface plate 79 is locked at the seating position, the armrests 85a and 85b are rotated to be in a use state.

[Standing support, walking assistance]
When performing support for standing the assistant who has moved to the seating position, the assistant or the assistant operates the controller 75 shown in FIG. 1 to drive the electric cylinder device 68 shown in FIG. By this driving, the shaft 68b of the electric cylinder device 68 is raised, and the lifting frame 62 is raised from the position shown in FIG. 2 along the rear pillars 35a and 35b. Along with this rise, the seat surface portion 13 and the backrest 63 rise, and when the seat surface portion 13 is raised while pushing up the buttocks of the assistant, the assistant can be raised and the transition to the standing posture can be supported. The raised position of the seat surface portion 13 is adjusted by the controller 75 according to the physique of the person being assisted.

  When the seat surface portion 13 is raised, the seat surface portion 13 is separated from the stomach bar 15. The front-rear distance between the stomach bar 15 and the seat surface portion 13 increases as the seat surface portion 13 rises due to the inclination of the seat surface support frame 35. By extending the front-rear distance to the stomach bar 15, the assistant's standing operation can be facilitated.

  As the seat surface portion 13 rises, that is, as the assistant's standing motion progresses, the seat surface plate 79 moves away from the assistant, and the seating area of the assistant's seat on the seat plate 79 is gradually reduced. The assistant can sit shallowly on the seating surface plate 79, and can stand up more smoothly from the seating surface portion 13 than when the assistant is sitting deeply.

  In this embodiment, since the seating surface width of the seating surface plate 79 is set to be as narrow as 200 mm, the person being supported sits shallowly on the seating surface plate 79 from the beginning, so that the person can stand up more smoothly. Can be made.

  When standing up, the front is closed by the left and right elbow support portions 11a, 11b, etc., and the stomach bar 15 is positioned below the front, so that the Can support.

  After assisting the standing person, when the assistant or the assistant jumps up the seat surface part 13, the seat surface part 13 rotates to a position along the rearward tilt of the seat surface support frame 35, and the seat surface part 13 is retracted. Is done.

  The standing assistant can support the body by placing both arms on the left and right elbow support portions 11 a, 11 b of the front support portion 11, and can easily perform a self-supporting walk while applying the abdomen to the stomach bar 15.

  The person being assisted can apply a pressing force to the standing assistance walking aid 1 by the stomach bar 15 and can easily walk with the standing assistance walking aid 1.

[Wheelchair use condition]
The standing-up assistance walking aid 1 can be used as a wheelchair while the person being assisted is seated on the seat surface portion 13. At this time, the person being assisted can place his / her feet on the traveling base 3 as appropriate. Further, a footrest panel for placing feet on the traveling base 3 may be provided. For example, the footrest panel can be installed between the front base panel 27 and the front joints 29a and 29b in the front-rear direction while avoiding the upper front member 23. Further, the footrest panel may be spanned between the front joints 29a and 29b, or the side frames 9 may be provided on both sides in the instrument width direction and spanned between the side frames 9.

  In the use state as this wheelchair, the posture of the assistant can be stabilized by grasping the stomach bar 15. Both arms of the person being assisted can be placed on the armrests 85a and 85b on both sides.

  The assistant can hold the handle bar 35d and perform the running support of the standing assistance walking assist device 1.

[Load support]
(When transferring, sitting)
As described above, the front surface formed by the lower rear member 31 and the lower rear base panel 41, the upper rear member 33 and the upper rear base panel 42, the connecting members 37a and 37b, and the rear joints 36a and 36b at the time of transfer and sitting. A load can be applied to the closed cross-section structure as viewed from the above. The load received here is transmitted to the rear side frame joint 49e via the rear joint 36b.

  This transmission load is performed through a butt connection at the butt surface 36ba and the butt surface 49ea having a width in the left and right between the rear joint 36b and the side frame joint 49e and long in the vertical direction.

  The load transmitted to the side frame joint 49e is received by the upper and lower pipes 49a and 49b of the side frame 9. The upper and lower pipes 49a and 49b are spaced parallel to each other in the vertical direction and are structurally reinforced by the horizontal reinforcement bar 49c and the vertical reinforcement bar 49f, so that the moment transmitted to the side frame joint 49d, etc. Can be firmly received by the upper and lower pipes 49a, 49b.

  The load received by the side frame 9 is transmitted to the front joint 29b via the side frame joint 49d.

  This transmission load is performed through a butt connection at the butt surface 49da and the butt surface 29ba, which have a lateral width between the side frame joint 49d and the front joint 29b and are long in the vertical direction.

  From the front joint 29b, a load is transmitted to the closed cross-section structure portion viewed from the side formed by the lower front member 21 and the front base panel 27, the upper front member 23, the front pillars 25a and 25b, and the front joints 29a and 29b. Made.

  Therefore, the weight of the person who works on the seat surface portion 13 at the time of transfer or sitting can be received with high rigidity as a whole.

(At the time of standing up support)
At the time of standing up support, the seat surface portion 13 moves away from the person being assisted by the rising of the seat surface portion 13 along the rearward tilt of the seat surface support frame 35, and the seating area of the person being assisted with respect to the seat surface plate 79 is gradually increased. The person to be assisted receives a force in the standing direction from the seat surface portion 13.

  At this time, the rear pillars 35a and 35b of the seating surface support frame 35 receive a load in a direction that falls forward as in the case of sitting, or receive a load in a direction that falls backward due to a reaction force from the heel of the person being assisted. Sometimes.

  In the same manner as described above, this load is applied when the lower rear member 31 and the lower rear base panel 41, the upper rear member 33 and the upper rear base panel 42, the connection members 37a and 37b, and the rear joints 36a and 36b are closed as viewed from the front. Received by the cross-section structure.

  Accordingly, the weight or reaction force of the person who works on the seating surface portion 13 can be received with high rigidity as a whole during standing support.

(At the time of walking assistance)
During a self-supporting walk, when a load in the falling direction acts on the front pillars 25a and 25b from the front support part 11 and the stomach bar 15, the lower front member 21, the front base panel 27, the upper front member 23, and the front pillars 25a and 25b. And load transmission is made to the closed section structure part seen from the side which the front joints 29a and 29b make.

  This transmission load is applied through a butt connection at the butt surface 29ba and the butt surface 49da having a width in the left and right between the front joint 29b and the front side frame joint 49d and being long in the vertical direction.

  The load transmitted to the side frame joint 49d is received by the upper and lower pipes 49a and 49b of the side frame 9. The upper and lower pipes 49a and 49b are spaced parallel to each other in the vertical direction and are structurally reinforced by the horizontal reinforcement bar 49c and the vertical reinforcement bar 49f, so that the moment transmitted to the side frame joint 49d, etc. Can be firmly received by the upper and lower pipes 49a, 49b.

  The load received by the side frame 9 is transmitted to the rear joint 36b through the side frame joint 49e.

  This transmission load is performed through a butt connection at the butt surface 49ea and the butt surface 36ba having a width between the side frame joint 49e and the rear joint 36b and having a long width.

  From the rear joint 36b, the front made by the rear joint 36b, the lower rear member 31 and the lower rear base panel 41, the upper rear member 33 and the upper rear base panel 42, the connecting members 37a and 37b, and the rear joints 36a and 36b. The load is transmitted to the closed cross-section structure as viewed from the above.

  Therefore, the load in the direction in which the front pillars 25a and 25b and the rear pillars 35a and 35b are tilted can be received with high rigidity as a whole.

(Lateral load)
For lateral loads, the lower front traveling unit 5 including the lower front member 21, the front base panel 27, the upper front member 23, and the like has a high lateral rigidity, and the lower rear member 31, the lower rear base panel 41, and the upper rear member. The member 33 and the upper rear base panel 42, the connecting members 37a and 37b, the rear joints 36a and 36b, and the like, and the lower portion of the rear traveling unit 7 having high lateral rigidity function.

  That is, the lateral load is transmitted from the lower part of the front traveling unit 5 and the lower part of the rear traveling unit 7 to the side frame 9 as a lateral bending.

  This load transmission is such that the abutting connection of the abutting surfaces 29ba and 49da having a long left and right width between the front joint 29b and the side frame joint 49d, and a long right and left between the rear joint 36b and the side frame joint 49e. This is done through a butt connection of the butt surfaces 36ba and 49ea having a width of 3mm.

  For this reason, the lateral bending load can be reliably transmitted to the side frame 9 from the lower part of the front traveling unit 5 and the lower part of the rear traveling unit 7 with high rigidity.

  The lateral bending load can be firmly received by the upper and lower pipes 49a and 49b of the side frame 9 structurally reinforced by the horizontal reinforcement bar 49c and the vertical reinforcement bar 49f.

  Therefore, as a whole, the load in the direction in which the opening 3a between the front traveling unit 5 and the rear traveling unit 7 causes the opening can be received with high rigidity.

  Thus, the standing assistance walking assist device 1 that is high in both vertical rigidity and lateral rigidity and can be reduced in weight can surely perform assistance of walking of the person being assisted.

(When using a wheelchair)
When the standing support walking assisting device 1 is pushed by the handlebar 35d to run, the rear pillars 35a and 35b are subjected to a load that causes the rear pillars 35a and 35b to fall forward due to the load caused by the seated portion 13 and the pushing force.

  Even when used as such a wheelchair, a stable seating on the seated portion 13 of the person to be assisted is assuredly maintained by the standing assisting walking assist device 1 which is high in both vertical rigidity and lateral rigidity and can be reduced in weight by the same load transmission. be able to.

[Effect of Example 1]
The standing support walking assist device 1 of the present embodiment includes a lower side frame between a lower part of a front traveling unit 5 having front wheels 17a and 17b and a rear traveling unit 7 having a rear wheel spaced apart from the front traveling unit 5. 9 and a side frame 9 disposed on one side of the traveling base 3 in the instrument width direction so as to be provided on the other side of the traveling base 3 in the instrument width direction. An opening 3a that opens between the units 7 is provided, and an assistant can move between the front traveling unit 5 and the rear traveling unit 7 through the opening 3a.

  For this reason, the step of the person being assisted at the time of transfer can be transferred in a slipped state without lifting the foot between the front traveling unit 5 and the rear traveling unit 7 from the opening 3a.

  By this transfer operation, even an assistant who does not have muscle strength can sit on the seat surface 13 from a chair or a bed and move between the front traveling unit 5 and the rear traveling unit 7 very easily. .

  Even when a person who stands up between the front traveling unit 5 and the rear traveling unit 7 tries to move out of the standing assisting walking aid 1 while standing, it can easily move from the opening 3a.

  Therefore, in this embodiment, the standing assistance walking assist device 1 can be easily moved in and out of a person who needs assistance.

  The side frame 9 has a coupling part for detachably coupling to the front traveling unit 5 and the rear traveling unit 7, and the front traveling unit 5 and the rear traveling unit 7 couple the side frame 9 to be detachable. To be coupled to both sides in the instrument width direction, the coupling of the side frames 9 is switched from one side to the other side in the instrument width direction, and the opening 3a is switched from the other side in the instrument width direction to the one side. Is possible.

  For this reason, the traveling base 3 can be made into C type or reverse C type by the switching attachment of the side frame 9, an open port can be comprised in right and left, and versatility can be improved.

  The coupled portions on both sides in the instrument width direction have the same structure, and include front joints 49d and 49e provided on the front traveling unit 5 and rear joints 36a and 36b provided on the rear traveling unit 7. The part includes side frame joints 49d and 49e provided at the front and rear ends in the traveling direction.

  The front joints 29a, 29b, the rear joints 36a, 36b, and the side frame joints 49d, 49e have a matching surface 29aa, 29ba of the same shape, with the vertical direction that abuts each other back and forth in the running direction is relatively longer than the instrument width direction. 36 aa and 36 ba and abutting surfaces 49 da and 49 ea. The abutting of the abutting surfaces 29 ba (29 aa) and 36 ba (36 aa) and the abutting surface 49 ea (49 da) is performed by positioning by the bushes 57 a and 57 b and the pins 59 a and 59 b and the bolt 59 c. , 59d.

  For this reason, the butting surfaces 29ba (29aa), 36ba (36aa) and the butting surfaces 49da, 49ea can be accurately butted. By this accurate butting, it is possible to reliably receive loads and moments in the vertical and horizontal directions and to perform accurate load transmission.

  Since the front joints 29a and 29b and the rear joints 36a and 36b and the side frame joints 49d and 49e are relatively long in the vertical direction and small in width, the operation of the assistant between the front traveling unit 5 and the rear traveling unit 7 is performed. Space can be secured and a load and moment in the vertical direction can be reliably received.

  The side frame 9 is provided with pipes 49a and 49b, which are frame members extending in the front-rear direction in the running direction, on the upper and lower sides.

  Therefore, the load in the vertical direction transmitted from the front joints 29a and 29b and the rear joints 36a and 36b to the side frame 9 can be received in the longitudinal direction by the pipes 49a and 49b, respectively, and the front joints 29a and 29b and the rear joints can be received. It can be reliably transmitted from one of 36a and 36b to the other of the front joints 29a and 29b and the rear joints 36a and 36b via the side frame 9, and can be received with high rigidity by the standing support walking auxiliary device 1 as a whole.

  Therefore, it is possible to accurately perform the transfer operation, the standing support, the walking assistance, and the wheelchair use of the assistant.

  The traveling base 3 includes a lower front member 21 that is an upper and lower skeleton member of the front traveling unit 5 corresponding to the upper and lower pipes 49 a and 49 b, and an upper front member 23 and a lower rear member 31 that is an upper and lower skeleton member of the rear traveling unit 7. And an upper rear member 33.

  For this reason, direct load transmission is performed between the upper pipe 49a and the upper front member 23 between the pipes 49a and 49b and the lower front member 21 and the upper front member 23 of the front traveling unit 5. Direct load transmission is performed between the side pipe 49b and the lower front member 21, thereby enabling reliable load transmission when a moment is applied due to vertical load.

  Moreover, since the upper front member 23 is located slightly below the pipe 49a and the lower front member 21 is located slightly above, any input from the lower front member 21 and the upper front member 23 can be attached. Depending on the position, it can be distributed and transmitted to the pipes 49a, 49b.

  Further, between the pipes 49a and 49b and the lower rear member 31 and the upper rear member 33 of the rear traveling unit 7, direct load transmission is performed between the upper pipe 49a and the upper rear member 33, and the lower side By directly transmitting the load between the pipe 49b and the lower rear member 31, it is possible to reliably transmit the load when the moment is applied by the vertical load.

  Further, the standing support walking assist device 1 of the present embodiment includes a seat surface support frame 35 that is provided upright on the traveling base 3, and a seat surface that is disposed on the seat surface support frame 35 and on which a person being assisted is seated. A seat surface portion 13 having a seat surface movable to a seating position in the center of the instrument width direction and a transfer position shifted to the opening 3a side in the instrument width direction with respect to the seating position; An elevating mechanism 61 is provided to support the support frame 35 so as to be movable by driving by the electric motor 68c of the electric cylinder device 68 between the seating position in the vertical direction and the upper position.

  For this reason, it is easy to transfer the person being assisted by the seat part 13 that has moved the seating surface to the transfer position, and the feet of the person being assisted are easily moved from the opening 3a to the front traveling unit 5 and the rear traveling unit 7. You can easily move to the sitting position.

  In addition, it is possible to easily support the person being raised by raising the seat surface portion 13 with respect to the seat surface support frame 35 by the lifting mechanism 61 by the electric cylinder device 68 driven by the electric motor 68c.

  The form of the detachable structure for attaching the side frame 9 by switching left and right is not particularly limited, and a rail that is movable left and right is provided between the side frame 9 and the front traveling unit 5 and the rear traveling unit 7. For example, a lock mechanism may be provided that moves along the rail and positions after movement in either side of the instrument width direction.

  26 to 31 relate to the second embodiment, FIG. 26 is a side view showing the coupling of the side frames, FIG. 27 is a plan view showing the fitting of the side frames, and FIG. 28 is the fitting of the side frames. 29 is related to the front joint, (A) is a side view, (B) is a front view, (C) is a plan view, and FIG. 30 is related to the front side frame joint, (A) is a side view, (B) is a front view, (C) is a plan view, (D) is a bottom view, FIG. 31 relates to the coupling of the front joint and the side frame joint, (A) is The side view before joining, (B) is a side view in the middle of joining, and (C) is a side view in the joined state.

  Note that the basic configuration is the same as that of the first embodiment, and the same components are denoted by the same reference numerals, and the corresponding components are described by adding the same reference numerals A, and redundant descriptions are omitted. To do.

  The connection of the side frame 9A of the second embodiment is an insertion structure from above instead of the fastening structure using the bolt of the first embodiment.

  That is, as shown in FIG. 26 to FIG. 28, insertion portions 101 and 103 are formed between the side frame joints 49Ad and 49Ae of the side frame 9A, the front joint 29Ab (29Aa), and the rear joint 36Ab (36Aa). Yes. The insertion portions 101 and 103 are used to insert the side frame joints 49Ad and 49Ae into the front joint 29Ab (29Aa) and the rear joint 29Ab (29Aa) from above.

  1 to 3, the side frame 9A is attached to the right opening as an example. The front joint 29Ab (29Aa) and the rear joint 36Ab (36Aa) are the side frames. 9A is assumed to be switched from the right front joint 29Ab and the rear joint 36Ab to the left front joint (29Aa) and the rear joint (36Aa), and is given a reference numeral in parentheses. Accordingly, the front joint 29Ab side will be described below.

  The insertion parts 101 and 103 have the same structure in the front-rear direction, and the insertion part 101 will be described with reference to FIGS. 29 and 30, and the structure of the insertion part 101 will be referred to for the insertion part 103.

  The insertion portion 101 has a configuration in which each side frame joint 49Ad is inserted and coupled to the front joint 29Ab from above as a fitting shape that expands the cross section inside.

  That is, the insertion part 101 has insertion recessed part 29Abb and insertion convex part 49Adb.

  As shown in FIG. 29, a concave step portion 29Abc is formed at the upper end of the abutting surface 29Aba of the front joint 29Ab. The insertion recess 29Abb is formed in a trapezoidal shape whose cross section expands inside (FIG. 29C). The insertion recess 29Abb is formed along the abutting surface 29Aba in the vertical direction, and the upper end is open to the concave stepped portion 29Abc.

  On the other hand, as shown in FIG. 30, a convex step portion 49Adc is formed at the upper end of the butting surface 49Ada of the side frame joint 49Ad. The convex step portion 49Adc has a matching structure with the concave step portion 29Abc. Insertion convex part 49Adb is formed in the trapezoid shape which a cross section expands in the inside of insertion recessed part 29Abb. The insertion convex portion 49Adb is formed in the vertical direction along the abutting surface 49Ada below the convex step portion 49Adc, and the length in the vertical direction corresponds to the insertion concave portion 29Abb. The insertion convex portion 49Adb is fitted into the insertion concave portion 29Abb in an interference fitting state or a dead fitting state in the cross-sectional direction.

  The attachment of the side frame 9A by the insertion portions 101 and 103 can be performed by insertion from above.

  At the time of attachment, as shown in FIG. 31A, the side frame joint 49Ad is disposed above the front joint 29Ab, and the insertion convex portion 49Adb is opposed to the upper portion of the insertion concave portion 29Abb.

  When the side frame 9A is translated downward as it is, the insertion protrusion 49Adb is inserted into the insertion recess 29Abb as shown in FIG.

  When the insertion is continued and the convex step portion 49Adc is aligned with the concave step portion 29Abc, the attachment is completed as shown in FIG.

  In this attachment, the abutting surfaces 29Aba and 49Ada are abutted with a constant force due to the tightening allowance between the insertion recess 29Abb and the insertion protrusion 49Adb in an interference fit state, thereby eliminating rattling. In addition, by simply inserting the insertion convex portion 49Adb into the insertion concave portion 29Abb, they can be engaged with each other back and forth in the traveling direction by the action of the cross-sectional shape, and a reliable assembly can be performed.

  In the state where the insertion concave portion 29Abb and the insertion convex portion 49Adb are stuck and fitted, there may be no tightening allowance, but the abutting surfaces 29Aba and 49Ada can be almost abutted together, and the side frame 9A can be easily attached and detached.

  Note that the insertion concave portion 29Abb and the insertion convex portion 49Adb can have a gradually tapered shape in the downward direction to have a wedge-like effect.

  Therefore, in this embodiment, since the structure is attached not by fastening by a fastener but by an insertion structure from above, the side frame 9A can be easily attached by switching left and right.

  In addition, the same effects as those of the first embodiment can be achieved.

  In the second embodiment, a one-touch type fastening structure in which the insertion recess 29Abb and the insertion protrusion 49Adb are in close contact with each other in the cross-sectional direction in the insertion state of FIG. As a one-touch type fastening structure, a structure using a cam surface can be considered.

1 Standing support walking aid (movement aid)
3 Traveling Base 3a Opening Port 5 Front Traveling Unit 7 Rear Traveling Units 9, 9A Side Frame 13 Seating Surfaces 17a, 17b Wheels (Front Wheels)
19a, 19b Wheel (rear wheel)
21 Lower front member 23 Upper front member 31 Lower rear member 33 Upper rear member 29a, 29Aa, 29b, 29Ab Front joint 29aa, 29Aaa, 29ab, 29Aab, 36aa, 36Aaa, 36ba,
36Aba, 49da, 49Ada, 49ea, 49Aea Abutting surface 35 Seating surface support frame 36a, 36Aa, 36b, 36Ab Rear joint 49d, 49Ad, 49e, 49Ae Side frame joint 61 Lifting mechanism 59c, 59d Bolt (fastener)
101, 103 plug

Claims (7)

A traveling base in which a lower side frame of a front traveling unit having a front wheel and a rear traveling unit having a rear wheel and separated from the front traveling unit are coupled to each other by a lower side frame;
An opening that is provided on the other side of the traveling base by disposing the side frame on one side of the traveling base and opens between the front traveling unit and the rear traveling unit;
Enabling the assistant to move between the front traveling unit and the rear traveling unit from the opening;
A mobility aid characterized by that. The movement auxiliary device according to claim 1,
The side frame has a coupling portion for detachably coupling to the front traveling unit and the rear traveling unit,
The front traveling unit and the rear traveling unit each include a coupled portion for detachably coupling the side frame on one side and the other side of the traveling base,
The travel base can switch the coupling of the side frame from the one side to the other side and switch the opening from the other side to the one side.
A mobility aid characterized by that. The movement auxiliary device according to claim 2,
The coupled portion has the same structure, and includes a front joint provided in the front traveling unit and a rear joint provided in the rear traveling unit, and the coupling portion is provided at the front and rear ends in the traveling direction of the side frame. With side frame joints
The front joint, the rear joint, and the side frame joint have a flat abutting surface that abuts each other back and forth in the running direction in a shape in which the vertical direction is longer than the width direction of the vessel,
Between the front joint and the rear joint and the side frame joint, a fastener for maintaining the butting of the butting surfaces or an insertion part for inserting and coupling the side frame joints to the front joint and the rear joint from above. With
A mobility aid characterized by that. It is the standing assistance movement auxiliary device according to any one of claims 1 to 3,
The side frame is provided with a skeletal member extending vertically in the traveling direction.
A mobility aid characterized by that. It is a standing assistance movement auxiliary device according to claim 4,
The traveling base includes the upper and lower skeleton members of the front traveling unit and the rear traveling unit corresponding to the upper and lower skeleton members,
A mobility aid characterized by that. It is a movement auxiliary device as described in any one of Claims 1-5,
A seat support frame provided on the traveling base;
A seating surface disposed on the seating surface support frame for a person to be seated by an assistant, having a seating position in the instrument width direction and a transfer position shifted from the seating position toward the opening in the instrument width direction With a seating surface part that can move to
A mobility aid characterized by that. The movement auxiliary device according to claim 6,
An elevating mechanism for supporting the seat surface portion movably by an actuator between a seating position in the vertical direction and an upper position with respect to the seat surface support frame,
A mobility aid characterized by that.

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