JP2017006497A - Moving aid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a moving aid appropriately supporting the right and left forearms of a person to be assisted, suppressing a feeling of discomfort, hardly causing fatigue, and capable of securing a sufficient walking assisting time.SOLUTION: There are included: front/rear position adjustment mechanisms 121a and 121b which include a travelling base 3 capable of travelling with wheels 17a, 17b, 19a, and 19b, and a front support part 11A included in the front part side of the travelling base 3 and supported by putting the arms of a person to be assisted on right and left elbow support parts 11Aa and 11Ab, and where the front support part 11A is mounted on front pillars 25a and 25b adjustably in front and rear positions; a front/rear inclined position adjustment mechanism which is mounted adjustably in front and rear inclined positions; and a vertical position adjustment mechanism which is mounted adjustably in vertical positions.SELECTED DRAWING: Figure 25

Description

  The present invention relates to a movement assist device that is provided for nursing care or the like and that assists the movement of a person being assisted.

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

  Patent Document 1 discloses a walking assist device as this type of walking assist device. In this walking assist device, an elbow support means including a support plate is provided, and the vertical position of the elbow support means including the support plate can be adjusted.

  However, this elbow support means could not adjust the front-rear position.

  On the other hand, the assistants who use walking aids often have deformed trunks, including the waist, etc. due to the elderly, etc. The left and right forearms cannot be properly supported when assisting the walking of a deformed person, etc., causing a sense of incongruity, easily causing early fatigue, and causing a problem that walking assistance is substantially impossible. It was.

  Moreover, even if the trunk is not deformed, there is a support state desired by the assistant, and it is necessary to respond to the request.

JP-A-10-216183

  The problem to be solved is that it cannot properly support the left and right forearms of the person being assisted, which causes a sense of incongruity, tends to cause early fatigue, and cannot substantially assist movement.

  The present invention can appropriately support the left and right forearms of the person being assisted, suppress discomfort, hardly cause fatigue, and ensure sufficient walking assistance time. It is a movement auxiliary device provided with the front support part which carries on and supports the left and right forearms of the front, and has a position adjustment mechanism which attaches the front support part so that at least front-and-rear position adjustment is possible.

  Since the present invention is configured as described above, the front / rear position of the front support portion can be appropriately adjusted according to the person being assisted, and movement assistance is performed while supporting the left and right forearms of the person being assisted by the front support portion. Can be made.

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 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 14A is a cross-sectional view at the right transfer position, FIG. 14B is a cross-sectional view at the seating position, and FIG. 14C 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 XVI-XVI line arrow of FIG. Example 1 14A is a sectional view showing the lock mechanism at the right transfer position, and FIG. 14B 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 perspective view which shows the attachment state of a front support part. Example 1 It is a principal part enlarged side view which shows the attachment state by the front-back inclination position adjustment mechanism of a front support part. Example 1 It is the principal part expanded sectional view seen from the front which shows the attachment state by the front-back inclination position adjustment mechanism of a front support part. Example 1 (A) is a lock state before tilt change, (B) is a lock release state, (C) is an angle adjustment state, and (D) is a lock after angle adjustment. It is each side view of a state. Example 1 FIG. 3 shows a vertical adjustment mechanism for a front support, where (A) is a locked state, and (B) is a cross-sectional view of a main part in a locked state. 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 a principal part enlarged plan view of the state where the elbow rest plate of the front support part was removed. Example 1 It is the principal part enlarged side view which made the cross section the part of the state which removed the elbow-place plate of the front support part. Example 1 It is a principal part expanded rear view of the state which removed the elbow-place plate of the front support part. Example 1 The state which attached the elbow-place plate of the front support part is shown, (A) is a principal part enlarged plan view, (B) is the principal part enlarged side view which made one part a cross section. Example 1 The state which attached the elbow-place plate of the front support part and changed the position ahead is shown, (A) is a principal part enlarged plan view, (B) is a principal part enlarged side view which made a part a cross section. Example 1 It is a left view of a standing assistance walk auxiliary device. (Example 2) It is a top view of a standing assistance walk auxiliary device. (Example 2) It is a principal part enlarged plan view of the state where the elbow rest plate of the front support part was removed. Example 1 It is the principal part enlarged side view which made the cross section the part of the state which removed the elbow-place plate of the front support part. Example 1 It is a principal part expanded rear view of the state which removed the elbow-place plate of the front support part. Example 1 The state which attached the elbow-place plate of the front support part is shown, (A) is a principal part enlarged plan view, (B) is the principal part enlarged side view which made one part a cross section. Example 1 The state which attached the elbow-place plate of the front support part and changed the position ahead is shown, (A) is a principal part enlarged plan view, (B) is a principal part enlarged side view which made a part a cross section. Example 1

  The left and right forearms of the person being assisted can be properly supported, the feeling of discomfort is suppressed, fatigue is less likely to occur, and sufficient movement assistance time can be secured. This is a movement assisting device provided with a front support portion on the front frame for supporting the forearm, and is provided with a front / rear position adjustment mechanism for attaching the front support portion to the front frame so that the front / rear position can be adjusted.

  The front support part may be provided with an elbow support part for each of the left and right forearms, and the front-rear position adjusting mechanism may be provided separately for each of the left and right elbow support parts.

  The left and right elbow support portions may include a side portion oriented in the traveling front-rear direction and a front portion oriented in the instrument width direction, and the front-rear position adjusting mechanism may be provided along the side portion.

  The movement assist device according to the first embodiment of the present invention is characterized in that it includes a position adjustment mechanism that attaches the front support portion so that at least the front-rear position can be adjusted.For convenience of explanation, the front support portion including the front-rear position adjustment mechanism is 25 to FIG. 31, and FIGS. 1 to 24 explain the basic structure of the standing support walking assist device to which the front support portion of FIGS. 25 to 31 is applied. First, in FIG. 1 to FIG. 24, a basic structure of a standing assistance walking assist device that does not include a front / rear position adjustment mechanism but includes a front / rear tilt position adjustment mechanism and a vertical position adjustment mechanism will be described. The application of the front support portion provided with the front-rear position adjustment mechanism shown in FIGS.

[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 between 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 an abdominal bar 15 as an abdominal abutment portion 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 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 29ba that abut on a side frame joint, which will be described later, in a rearward direction 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 traveling unit 5, and are inclined rearward with an inclination 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 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, 11b can be adjusted to adjust the front / rear tilt position and the upper / lower position separately by the movable structure of the front / rear tilt position adjustment mechanisms 28a, 28b and the vertical position adjustment mechanisms 30a, 30b.

  The front and rear tilt position 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, and the left and right elbow support portions 11a and 11b can be adjusted separately. And

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

  An example of the front / rear tilt position adjustment mechanisms 28a and 28b and the vertical position adjustment mechanisms 30a and 30b will be described later.

  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 with an inclination angle θ2 (> θ1) with respect to the front pillars 25a and 25b. However, the inclination angle θ2 of the stomach bar 15 may be set equal to the inclination angle θ1 of the front pillars 25a and 25b (θ2 = θ1).

  In the present embodiment, the stomach bar 15 is disposed so as to protrude rearward in the traveling direction between the upper and lower sides of the traveling base 3 and the front support portion 11, and can contact the abdomen of the person being assisted. Note that the shape, structure, attachment position, attachment structure, and the like of the stomach bar 15 are not particularly limited as long as the abdomen of the person being assisted can be applied during walking assistance. The stomach bar 15 can also be formed of a bar having a fixed extension length.

  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.

  Rear joints 36 a and 36 b are fixed to the front ends of the lower rear member 31 and the upper rear member 33. 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 wheels 19a and 19b are rotatably supported by the shaft support portions 43a and 43b.

  The 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. The deceleration brake always applies friction to the wheels 19a and 19b so that 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 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 upright on the rear side in the traveling direction of the traveling base 3 in this attached state, and is inclined backward at an inclination 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.

  The side frame 9 shown in FIGS. 1-3, 6 and 9 is made of metal, resin, fiber reinforced plastic (GFRP, CFRP) or the like, and has a plate-like reinforcement bar 49c between the upper and lower pipes 49a, 49b. Is arranged. Side frame joints 49d and 49e are attached to the front and rear ends of the pipes 49a and 49b and the reinforcement bar 49c, and an intermediate reinforcing member 49f is fixed to an intermediate portion.

  The side frame joints 49d and 49e have a block shape, and flat abutting surfaces 49da and 49ea are formed along the top and bottom respectively.

  In the figure, the side frame 9 is disposed between the right 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 butted against the butted surfaces 29ba and 36ba of the front joint 29b and the rear joint 36b separately, and the side frame joints 49d and 49e are butted against the front joint 29b and the rear joint. Each of the joints 36b is fastened and coupled. The outer shapes of the side frame joints 49d and 49e are the same as those of the front joints 29a and 29b and the rear joints 36a and 36b.

  This joint 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. 9, 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. 9 is a left side view of the structure. In the figure, the side frame joint 49e is fastened and coupled to the rear joint 36b.

  The side frame joint 49e is positioned with respect to the rear joint 36b by pins 59a and 59b and bushes 57a and 57b, and is fastened and coupled by bolts 59c and 59d. The bushes 57a and 57b are supported by the rear joint 36b, and the pins 59a and 59b are supported by the side frame joint 49e. When the tips of the pins 59a and 59b are fitted into the bushes 57a and 57b, the side frame joint 49e is positioned at the rear joint 36b.

  In this positioning state, the bolts 59c and 59d inserted into the through hole from the side frame joint 49e side are screwed into the female thread portion of the rear joint 36b, and the side frame joint 49e is fastened and coupled to the rear joint 36b. The front joint 29a and the side frame joint 49d are similarly fastened and coupled.

  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.

  In this fastened state, the side frame 9 is located on the right side, the left front joint 29a and the rear joint 36a are opened, and the traveling base 3 has an inverted C shape as viewed from above. 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 side frame 9 can be disposed between the left front joint 29b and the rear joint 36b and fastened and coupled in the same manner. In this case, the space between the right front joint 29a and the rear joint 36a is opened, and the traveling base 3 is C-shaped when seen from the plane. The side frame 9 can also be fixedly provided on the traveling base 3 on either the left or right side.

  The seating surface portion 13 is disposed on the seating surface support frame 35 and has a seating surface on which a person to be assisted is seated. As shown in FIG. 3, 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.

[Elevating mechanism]
10 shows the seat surface portion supported by the lifting mechanism, and is a front view at the seat portion storing position, FIG. 11 shows the seat surface portion supported by the lifting mechanism, and the left side view at the seat portion storing position, FIG. FIG. 13 is a rear view of the lifting frame showing the switchboard, and FIG. 13 is a front view of the switchboard.

  As shown in FIGS. 1 to 4, 10, and 11, the elevating mechanism 61 includes an elevating 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. 14) 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 the recess 62b on the rear surface in the traveling direction of the elevating frame 62, and 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 35aa of FIG. 4 is attached to the rear pillar 35b of the seating surface support frame 35 corresponding to the switch plate 65. The limit switches 64a and 64b are attached to the lower surface of the lifting frame 62 in the same manner as the upper surface side.

  Rollers are attached to both sides of the lifting frame 62 in the instrument width direction, and these 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.

  The roller has a support function of guiding the lifting movement of the lifting frame 62 and receiving a force acting in the front-rear direction and the width direction of the lifting frame 62. For this reason, for example, four front and rear rollers and right and left rollers are provided on both sides of the lifting frame 62 in the instrument width direction, and these rollers share and receive the force acting in each direction.

  Therefore, the rollers of the elevating frame 62 roll along the rear pillars 35a and 35b, and the elevating frame 62 is guided up and down along the rear pillars 35a and 35b by the rolling of the rollers 67a and 67b. ing.

  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, 9, and 12, 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. 14).

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

  As shown in FIGS. 12 and 13, 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 on 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 19) for remotely controlling the drive control circuit is connected to the control board 69 by wire. The controller 75 is supported by the seat support frame 35 and is held by the person being assisted or by the assistant. Operation is possible. 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 abuts against the stopper 35aa, 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]
14 is a plan view of the seating surface portion at the seating position, FIG. 15 is related to the slide mechanism indicated by the arrow XV-XV in FIG. 14, (A) is a cross-sectional view at the right transfer position, and (B). Cross-sectional view at the seating position, (C) Cross-sectional view at the left transfer position, FIG. 16 is a cross-sectional view of the locking mechanism indicated by the arrow XVI-XVI in FIG. 14, and FIG. 17 is XVII-XVII in FIG. (A) is a sectional view showing the locking mechanism at the right transfer position, (B) is a sectional view showing the locking mechanism at the seating position, and FIG. A) is a cross-sectional view of the seated position when unlocked, (B) is a cross-sectional view of the locked state at the left transfer position, and FIG. It is a principal part perspective view of a vessel.

  1 to 4 and 10 to 19, 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 surface 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 at the rear (FIGS. 12, 18, and FIG. 20). 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, metal plate, wood plate, or the like in plan view, and is disposed on the seat surface base 77 to constitute the 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 plate 79 protrudes left and right from the seat base 77 (FIGS. 15 to 18).

  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 a recess having the same depth as the recess 79a. At the left and right ends of the movable 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 are engaged with the fixed sliders 87aa, 87ab, 87ba, and 87bb. By combining, the right and left movement limit position of the seating surface plate 79 is determined.

  The seating surface locking mechanism 83 enables the seating surface plate 79 to be locked 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 seating surface plate 79 side, and accordingly, one of the handles 95a and 95b is lifted to lift the lock shaft 97. The rotation operation arm is engaged with the lock shaft 97 side. The claw portion 93 can be detached from the lock recesses 91a, 91b, 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 by the arm support portions 99a and 99b by the hinges 100a and 100b (FIGS. 2, 4, and 10). The arm support portions 99a and 99b are provided on the left and right sides of the backrest 63. Therefore, the armrests 85a and 85b can be rotated to a position protruding forward on both sides of the backrest 63 and a retracted position along the backrest 63 as shown in FIG.

[Operation of seating surface]
As shown in FIG. 15, when the seat plate 79 is slid to the transfer position with respect to the seat 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 handle surface plate 79 is pulled outward in the instrument width direction while grasping one of the operated handles 95a and 95b, the seat surface plate 79 is moved from the seating position of FIG. Slide and move 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. 19, when the person to be captured is transferred from the chair or 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 adjusting the seat surface height of the seat surface portion 13, the handle 95a is rotated as shown in FIG. 18 to release the lock of the seat surface 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 rotated in advance to a retracted 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 plate 79 is formed so that the movable slide rails 89a and 89b extend over both ends of the seat plate 79 in the width direction of the seat and serves also as a reinforcement of the seat plate 79, so that it can reliably receive the weight of the person being assisted. 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. 15 are arranged in pairs on the left and right, the load acting on 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.

  From the seat base 77, loads are input to the rear pillars 35a and 35b through the left and right support brackets 86a and 86b, the backrest 63, and the lifting frame 62 shown in FIG.

  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, and the rear joints 36a and 36b shown in FIG. It 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, since the center of gravity of the standing assisting walking assist device 1 is shifted to the right because the side frame 9 is on the right side, the transfer of the supportee to the seat plate 79 in the cantilever state can be performed stably. .

  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 plate 79, as shown in FIG. 18, the lock of the seat plate 79 in the transfer position is released by the handle 95a, and the seat plate 79 is slid back to the seating position to support the standing of the assistant. 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 11Aa, 11Ab, etc., and the abdominal 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 11Aa and 11Ab of the front support portion 11A, and can easily perform a self-supporting walk while applying the abdomen to the stomach bar 15.

  The assisting person can apply a force to push the weight on the standing assistance walking assist device 1 at a position closer to the center of gravity of the body than the arm by the stomach bar 15, while smoothly running the standing assistance walking assist device 1. Walking with the standing assistance walking aid 1 can be easily performed.

  The load at this time is mainly applied from the stomach bar 15 to the abdomen of the person being assisted, and the load applied to both arms from the left and right elbow support portions 11Aa and 11Ab is reduced.

  In addition, by adjusting the vertical position and expansion / contraction length of the stomach bar 15 according to the person being assisted by adjusting the bar vertical position adjustment mechanism PS and the bar expansion / contraction mechanism EX, the coverage during walking assistance can be ensured more reliably. The load on the assistant can be reduced.

[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.

[Front support position adjustment mechanism]
The standing support walking assist device 1 which is a movement assist device of the embodiment of the present invention has a structure including a position adjusting mechanism for attaching the front support portion 11 so that at least the front / rear position can be adjusted. In addition, the front / rear tilt position adjusting mechanisms 28a and 28b and the vertical position adjusting mechanisms 30a and 30b are also provided.

  However, as described above, for convenience of explanation, FIGS. 1 to 24 have been described in a form in which the front / rear position adjustment mechanism is not provided. 20 to 24, specific structures of the front and rear tilt position adjusting mechanisms 28a and 28b and the vertical position adjusting mechanisms 30a and 30b will be described. The front / rear position adjustment mechanism will be described with reference to FIGS. In the description of the front / rear position adjustment mechanism in FIGS. 25 to 31, the structures of the front / rear tilt position adjustment mechanisms 28 a and 28 b and the vertical position adjustment mechanisms 30 a and 30 b of FIGS.

  20 to 23 illustrate the front / rear tilt position adjustment of the front support part, FIG. 20 is a perspective view showing the mounting state of the front support part, and FIG. 21 is the front / rear tilt position adjustment mechanism of the front support part. FIG. 22 is an enlarged cross-sectional view of the main part viewed from the front showing the attachment state by the front / rear tilt position adjustment mechanism of the front support part, and FIG. 23 is the front / rear tilt position of the front support part. (A) is a locked state before tilt change, (B) is an unlocked state, (C) is an angle adjusted state, and (D) is each side view of the locked state after angle adjustment. .

  As described above, the front support portion 11 includes the left and right elbow support portions 11a and 11b separately, and adjusts the front and rear tilt position adjustment and the vertical position adjustment separately to the left and right, for example, in a state as shown in FIG. be able to. Such adjustment of the elbow support portions 11a and 11b makes it possible to make the positional relationship with the stomach bar 15 appropriate for the person being assisted.

  The left and right front / rear inclination position adjustment mechanisms 28a and 28b shown in FIG. 5 and the like have the same structure, and the left front / rear inclination position adjustment mechanism 28a will be described. For the right front / rear inclination position adjustment mechanism 28b, refer to the left. To do.

  As shown in FIGS. 21 and 22, the front / rear tilt position adjusting mechanism 28 a includes a tilt base member 101 and a tilt movable member 103.

  In the inclined base member 101, a plate-like bifurcated portion 107 is formed integrally with a columnar base portion 105, the base portion 105 is fitted and fixed to the upper end of the front pillar upper 25ab, and the bifurcated portion 107 protrudes upward. The upper edge 107a of the bifurcated portion 107 is formed in a semicircular shape.

  In the tilting movable member 103, a plate-shaped movable portion 109 and a coupling portion 111 provided at the upper end of the movable portion 109 are integrally formed. The movable portion 109 is disposed between the bifurcated portion 107 and is capable of relative movement. The lower surface 111 a of the coupling portion 111 is formed in an arc shape, and the elbow support portion 11 a is fixed to the upper surface of the coupling portion 111.

  The bifurcated portion 107 and the movable portion 109 are coupled by pins 113 a and 113 b and a lock pin 115. The lock pin 115 has a double structure, and a shaft portion is supported in the outer cylinder portion 115a so as to be slidable.

  The outer cylinder portion 115a is screwed into the movable portion 109 and protrudes to the outside from a hole in one wall portion of the bifurcated portion 107. The hole in one wall is enlarged with respect to the outer cylindrical portion 115 a and allows the outer cylindrical portion 115 a to move together with the movable portion 109 when the movable portion 109 moves relative to the bifurcated portion 107.

  An operation knob 115b is integrally attached to the outer end of the shaft portion in the outer tube portion 115a, and the tip 115c of the shaft portion is fitted to the other wall portion of the bifurcated portion 107. A spring is interposed between the outer tube portion 115a and the shaft portion, and the tip 115c urges the shaft portion against the outer tube portion 115a in a direction of fitting to the other wall portion of the bifurcated portion 107. Yes.

  Accordingly, when the operation knob 115b of the lock pin 115 is held and the tip 115c is pulled out from the other wall portion of the bifurcated portion 107 and the movable portion 109 is lifted together with the elbow support portion 11a with respect to the bifurcated portion 107, the lock is released. The angle can be adjusted back and forth from the neutral position.

  More specifically, in FIG. 23A, the elbow support 11a is positioned at the neutral position. In this neutral position, the elbow support portion 11a is substantially perpendicular to the front pillar 25a and is in an angle of 0 °. In addition, in FIG. 23, although the front pillar 25a is shown in an upright state, on the standing support walking assist device 1, it is attached with an inclination as shown in FIG. Therefore, the angle 0 ° is relative to the front pillar 25a.

  In FIG. 23A, the lock pin 115 is pulled and the tip 115c is pulled out from the other wall portion of the bifurcated portion 107, and the movable portion 109 is moved with respect to the bifurcated portion 107 together with the elbow support portion 11a as shown in FIG. When the dimension m is raised, the lock of the hole 109a of the movable portion 109 with respect to the pin 113a on the bifurcated portion 107 side is released.

  As shown in FIGS. 23B to 23C, the elbow support portion 11a is tilted with respect to the bifurcated portion 107 about the pin 113b to adjust the tilt position, and after the adjustment, the movable portion 109 together with the elbow support portion 11a is adjusted. Is pushed against the bifurcated portion 107, the hole 109a of the movable portion 109 is engaged with and locked with the pin 113a on the bifurcated portion 107 side as shown in FIG. In this locked state, the shaft portion of the lock pin 115 is axially slid with respect to the outer tube portion 115a by the urging force of the spring, the tip portion 115c of the shaft portion is re-fitted to the other wall portion of the bifurcated portion 107, and the elbow support portion 11a. Can be fixed at an angle α with respect to the front pillar 25a.

  In addition, the elbow support part 11a can be rotated forward from the neutral position of FIG.

  FIG. 24 explains the vertical position adjustment of the front support part together with FIG. 20, FIG. 24 shows the vertical position adjustment mechanism of the front support part, (A) is in the locked state, and (B) is the lock release. It is principal part sectional drawing of a state.

  The vertical position adjusting mechanisms 30a and 30b adjust the vertical positions of the left and right elbow support portions 11a and 11b separately to the left and right. The vertical position adjusting mechanisms 30a and 30b have the same structure in the elbow support portions 11a and 11b. Therefore, in FIG. 24, the vertical position adjustment mechanism 30a of the elbow support portion 11a will be described, and the vertical position adjustment mechanism 30b on the elbow support portion 11b side will refer to the description of the vertical position adjustment mechanism 30a of the elbow support portion 11a.

  In the front pillar 25a, an inner cylinder 117 is fixed to a front pillar lower 25aa of an outer cylinder. A front pillar upper 25ab is fitted to the outside of the inner cylinder 117.

  A vertical position adjustment lock mechanism 119 is attached to the lower end of the front pillar upper 25ab, and a plurality of lock holes 117a are formed in the inner cylinder 117 at predetermined intervals along the vertical direction.

  The vertical position adjustment lock mechanism 119 has a cylindrical lock case 119a and is fixed to the lower end of the front pillar upper 25ab. A locking pin 119aa is fixed to the lock case 119a and is fitted in the long hole 117b of the inner cylinder 117. By this fitting, the rotation prevention guide of the lock case 119a with respect to the inner cylinder 117 is performed.

  A lock pin 119b is provided so as to be able to protrude and retract so as to penetrate the lock case 119a. The base end portion of the lock pin 119b is rotatably supported by the seesaw arm 119c. The distal end portion of the lock pin 119b is fitted in any lock hole 117a of the inner cylinder 117 at a protruding position into the lock case 119a. By this fitting, the vertical position of the front pillar upper 25ab with respect to the inner cylinder 117 is locked.

  The seesaw arm 119c is swingably supported by the lock case 119a by a support pin 119d. The seesaw arm 119c has a coil spring 119e interposed between the seesaw arm 119c and the lock case 119a at the end opposite to the lock pin 119b (the end opposite to the lock pin). This biases the lock pin 119b toward the lock side.

  As shown in FIG. 24B, when the end portion of the seesaw arm 119c opposite to the lock pin is pressed, the seesaw arm 119c swings and rotates about the support pin 119d, and the lock pin 119b locks on the front pillar lower 25aa side. Detach from hole 117a. By this separation, the vertical position of the front pillar upper 25ab with respect to the front pillar lower 25aa can be adjusted.

  When adjusting, when the pressing of the seesaw arm 119c is released, when the lock pin 119b faces the lock hole 117a, the seesaw arm 119c returns to swing by the urging force of the coil spring 119e, and the lock pin 119b becomes locked. Rush into. By this entry, the position of the front pillar upper 25ab after the vertical adjustment with respect to the front pillar lower 25aa is locked.

  By adjusting the vertical positions of the elbow support portions 11a and 11b, it is possible to freely adjust the vertical positions of the elbow support portions 11a and 11b to be different from each other as shown in FIG. This left-right adjustment enables effective walking assistance even when the person being assisted is left and right half-body inability and when the spine is bent to the left and right and it is difficult to stand upright.

  FIGS. 25 to 31 are diagrams for explaining the front-rear position adjustment mechanism. FIG. 25 is a left side view of the standing support walking assist device, FIG. 26 is a plan view of the standing support walking assist device, and FIG. 28 is an enlarged plan view of the main part with the elbow rest plate of the support part removed, FIG. 28 is an enlarged side view of the main part with a part of the front support part with the elbow rest plate removed, and FIG. The main part expansion rear view of the state which removed the elbow rest plate of the support part, FIG. 30 shows the state which attached the elbow rest plate of the front support part, (A) is a principal part enlarged plan view, (B) is FIG. 31 shows a state in which the elbow rest plate of the front support part is attached and the position is changed to the front, (A) is an enlarged plan view of the main part, and (B). These are the principal part expanded side views which made a part the cross section. In addition, the elbow support part of FIGS. 25-31 demonstrates the front support part 11 shown in FIGS. 20-23 by attaching | subjecting A to the same code | symbol.

  As shown in FIGS. 25 and 26, the elbow support portions 11Aa and 11Ab of the front support portion 11A are supported by the front pillars 25a and 25b by the front and rear tilt position adjustment mechanisms 28a and 28b and the vertical position adjustment mechanisms 30a and 30b. Further, the front / rear position can be adjusted by the front / rear position adjusting mechanisms 121a, 121b.

  The elbow support portions 11Aa and 11Ab are symmetrical and have the same structure. Hereinafter, the left elbow support 11Aa will be described, and the description of the right elbow support 11Ab will refer to the description of the left elbow support 11Aa.

  The elbow support 11Aa is obtained by attaching an elbow rest plate 125 shown in FIGS. 30 and 31 to a base plate 123 shown in FIGS.

  This elbow support portion 11Aa is supported by the front pillar 25a instead of the front support portion 11 shown in FIGS.

  That is, as shown in FIGS. 27 to 29, the base plate 123 is integrally or integrally formed on the coupling portion 111 of the tilt movable member 103 of the front / rear tilt position adjusting mechanism 28a on the front pillar 25a. The base plate 123 is formed of a rectangular plate material along the front-rear direction. The base plate 123 has a long hole 123a and a screw hole 123b for position adjustment.

  As shown in FIGS. 30 and 31, the elbow rest plate 125 includes a side part 125 a oriented in the front-rear direction and a front part 125 b oriented in the instrument width direction, and is formed in an L shape when viewed from above. Yes. The side part 125a is disposed along the base plate 123, and the front part 125b is directed to the inner side in the width direction of the elbow support parts 11Aa and 11Ab.

  The side portion 125a of the elbow rest plate 125 is formed with a stepped elongated hole 127 in the front portion, and a concave portion 129 for fitting and guiding the base plate 123 is formed in a rectangular shape on the lower surface of the side portion 125a. Is formed. The width of the recess 129 corresponds to the base plate 123, and the length in the front-rear direction is longer than that of the base plate 123. Therefore, the elbow rest plate 125 can slide back and forth with respect to the base plate 123 in the recess 129, and the position change back and forth is possible in a stepless manner.

  A pair of stopper pins 130 are fixed to the rear side of the elbow rest plate 125. The stopper pin 130 penetrates the long hole 123a of the base plate 123, and a resin-based guide block 132 is supported at the lower end. The guide block 132 is slidable with respect to the lower surface of the base plate 123.

  Then, a screw 131 is inserted into the stepped long hole 127, and the elbow rest plate 125 is fixed to the base plate 123 by screwing the screw 131 into the screw hole 123 b of the base plate 123.

  In FIG. 31, the elbow rest plate 125 is located at the foremost end, loosens the screw 131, adjusts the front and rear positions of the elbow rest plate 125 with respect to the base plate 123, and screwes and tightens the screw 131 again. The placing plate 125 can be fixed to the base plate 123.

  31 shows the position of the rearmost end of the elbow rest plate 125, and the front and rear positions of the elbow rest plate 125 can be freely adjusted between the position of the front end of the solid line and the position of the rearmost end of the chain line. . At the foremost end, the front stopper pin 130 contacts the front end of the elongated hole 123a, and at the rearmost end, the rear side stopper pin 130 contacts the rear end of the elongated hole 123a.

  Thus, the elbow support portions 11a, 11b of the front support portion 11 can be adjusted separately by the front / rear position adjustment mechanisms 121a, 121b, and the front / rear tilt position adjustment mechanisms 28a, 28b and the vertical position adjustment as described above. The front / rear tilt position and the vertical position can be adjusted separately by the mechanisms 30a and 30b.

  For this reason, the front / rear position of the front support part 11 or the front / rear position and the front / rear tilt position, the front / rear position and the upper / lower position, the front / rear position, the front / rear tilt position, and the upper / lower position can be adjusted appropriately according to the person being assisted. The left and right forearms of the person being assisted can be run while being supported by the front support portion 11A, and walking assistance can be performed.

[Effect of Example 1]
The standing support walking assist device 1 according to the first embodiment of the present invention includes a travel base 3 that can be traveled by wheels 17a, 17b, 19a, and 19b, and a front part of the travel base 3, and the arm of the person being supported is a left and right elbow And a front support portion 11A for supporting the support portions 11Aa and 11Ab by being mounted on the support portions 11Aa and 11Ab, and front and rear position adjustment mechanisms 121a and 121b for attaching the front support portion 11A so that the front and rear positions can be adjusted. 28a and 28b and vertical position adjusting mechanisms 30a and 30b for adjusting the vertical position.

  For this reason, when the assistant walks while running the standing support walking assist device 1, the left and right elbow support portions 11Aa and 11Ab of the front support portion 11A are appropriately adjusted in the front-rear direction, the tilt direction, and the vertical direction. The supportee's elbow can be supported, and the standing support walking assist device 1 can be smoothly run.

  Further, during the running of the standing support walking assist device 1, the load on both arms of the person being assisted can be reduced as much as possible, and sufficient walking assist time can be secured.

  By adjusting the left and right elbow support portions 11Aa and 11Ab of the front support portion 11A in the front-rear direction, the tilt direction, and the vertical direction, the mutual relationship with the stomach bar 15 can also be adjusted appropriately. By this adjustment, the support person puts his / her weight on a position closer to the center of gravity of the body than the arm by appropriately placing his / her abdomen on the stomach bar 15 while properly placing the elbows on the left and right elbow support parts 11Aa and 11Ab. It is possible to push the standing assistance walk assist device 1 and to make the standing assistance walking aid 1 run smoothly.

  Further, when the standing assisting walking assist device 1 is running, the assisting person applies a load to the stomach bar 15 through his / her abdomen by appropriately adjusting the left and right elbow support portions 11Aa and 11Ab in the front-rear direction, the tilt direction, and the vertical direction. Can be adequately received throughout the body, the load on both arms can be reduced, and sufficient walking assistance time can be secured.

  However, in this embodiment, the tilt position adjusting mechanisms 28a and 28b and the vertical position adjusting mechanisms 30a and 30b can be omitted, and the stomach bar 15 can be omitted.

  Even in this case, the supporter's elbow is appropriately supported by adjusting the elbow support portions 11Aa and 11Ab in the front-rear direction, and the load on both arms of the supporter can be applied when the standing assisting walking aid 1 is running. As much as possible.

  The stepless position adjustment of the elbow rest plate 125 with respect to the base plate 123 uses a worm and a worm wheel, and the elbow rest plate 125 is operated with respect to the base plate 123 by rotating the worm wheel with a handle or a knob. You can also. By using the worm and the worm wheel, the elbow rest plate 125 can be moved with respect to the base plate 123 even when a forward / backward moving force is applied to the elbow rest plate 125 due to low transmission efficiency from the worm side without using a lock mechanism. It doesn't move.

  An electric motor can also be used to drive the worm and worm wheel.

  Also, the left and right elbow support portions 11Aa and 11Ab can be integrated, and the front-rear position adjustment and the like can be performed integrally.

  32 to 38 relate to the second embodiment, FIG. 32 is a left side view of the standing support walking assist device, FIG. 33 is a plan view of the standing support walking assist device, and FIG. 34 is an elbow rest of the front support portion. Fig. 35 is an enlarged side view of the main part with the plate removed, Fig. 35 is an enlarged side view of the main part with the section of the elbow rest plate of the front support part removed, and Fig. 36 is the elbow rest of the front support part. FIG. 37 shows a state in which the elbow rest plate of the front support portion is attached, (A) is an enlarged plan view of the relevant portion, and (B) is a partial cross section. 38 is an enlarged side view of the main part, FIG. 38 shows a state in which the elbow rest plate of the front support part is attached and the position is changed forward, (A) is an enlarged plan view of the main part, and (B) is a part of it. It is the principal part enlarged side view made into the cross section. The basic configuration is the same as that of the first embodiment. The same components are denoted by the same reference numerals, and the corresponding components are denoted by A instead of B, and redundant description is omitted. To do.

  As shown in FIGS. 32 and 33, the standing support walking assist device 1 that is a movement assist device according to the embodiment of the present invention has the front support portion 11 </ b> B that adjusts the front / rear position by at least the front / rear position adjustment mechanisms 121 </ b> Ba and 121 </ b> Bb as in the first embodiment. It is possible. As in the first embodiment, the front / rear tilt position adjusting mechanisms 28a and 28b and the vertical position adjusting mechanisms 30a and 30b are also provided.

  The difference between the front / rear position adjustment mechanisms 121Ba and 121Bb of the second embodiment and the front / rear position adjustment mechanisms 121a and 121b of the first embodiment is a structure that allows continuous adjustment in the first embodiment. The second embodiment has a structure that enables stepwise adjustment.

  The elbow support portions 11Ba and 11Bb have a symmetrical shape as in the first embodiment, and have the same structure with a symmetrical shape. Hereinafter, the left elbow support portion 11Ba will be described, and the description of the right elbow support portion 11Bb will refer to the description of the left elbow support portion 11Ba.

  The elbow support 11Ba is obtained by attaching an elbow rest plate 125B shown in FIGS. 37 and 38 to a base plate 123B shown in FIGS.

  As shown in FIGS. 34 to 36, the base plate 123B is formed of a rectangular plate material that is short in the front-rear direction. A pair of screw holes 123Bb for fastening are formed in the base plate 123B.

  As shown in FIGS. 37 and 38, the elbow rest plate 125B is provided with a side portion 125Ba oriented in the longitudinal direction of travel and a front portion 125Bb oriented in the instrument width direction as in the first embodiment, and is L-shaped when viewed from above. It is formed in a shape.

  A plurality of stepped screw attachment holes 127 </ b> B are connected to the side portion 125 </ b> Ba of the elbow rest plate 125. The interval between the screw attachment holes 127B is equal to the interval between the screw holes 123Bb of the base plate 123B. However, these intervals can be set freely, and can be set corresponding to 1: 1 between the elbow rest plate 125B and the base plate 123B.

  Then, the screw 131B is inserted into the screw mounting hole 127B, and the side portion 125Ba of the elbow rest plate 125B is fastened and fixed to the base plate 123B by screwing and fastening the screw 131B to the screw hole 123Bb of the base plate 123B. In this fastened and fixed state, the screw 131B is buried in the screw mounting hole 127B, and the screw 131B does not protrude from the upper surface of the side portion 125Ba of the elbow rest plate 125.

  Accordingly, in FIG. 37, the elbow rest plate 125B is located at the foremost end, the screw 131B is removed, the elbow rest plate 125B is adjusted in the front-rear position with respect to the base plate 123, and the screw 131B is screwed and fastened again. The elbow rest plate 125B can be re-fixed to the base plate 123B. With this fixing, as shown in FIG. 38, the elbow rest plate 125B can be positioned at the foremost position, and the elbow rest plate 125B can be adjusted stepwise between the rearmost end of FIG. 37 and the foremost end of FIG. can do.

  Thus, the elbow support portions 11Ba and 11Bb of the front support portion 11B can be adjusted separately by the front and rear position adjustment mechanisms 121Ba and 121Bb, and the front and rear tilt position adjustment mechanisms 28a and 28b and the vertical position adjustment as described above. The front / rear tilt position and the vertical position can be adjusted separately by the mechanisms 30a and 30b.

  For this reason, also in a present Example, there can exist an effect similar to Example 1. FIG.

1 Standing support walking aid (movement aid)
3 traveling base 11A, 11B front support part 11Aa, 11Ab, 11Ba, 11Bb elbow support part 13 seat surface part 17a, 17b wheel (front wheel)
19a, 19b Wheel (rear wheel)
25a, 25b Front pillars 28a, 28b Front / rear tilt position adjustment mechanism (position adjustment mechanism)
30a, 30b Vertical position adjustment mechanism (position adjustment mechanism)
121a, 121b, 121Ba, 121Bb Front / rear position adjustment mechanism (position adjustment mechanism)
125a, 125Ba side part 125b, 125Bb front part

Claims (3)

It is a movement assistance device provided with a front support part on the front part for supporting the left and right forearms of the person being supported during movement assistance,
A position adjusting mechanism for attaching the front support portion so that at least the front-rear position can be adjusted;
A mobility aid characterized by that. The movement auxiliary device according to claim 1,
The front support is provided with an elbow support for each left and right forearm,
The position adjusting mechanism is provided separately for each of the left and right elbow support portions,
A mobility aid characterized by that. The movement auxiliary device according to claim 2,
The left and right elbow support portions include a side portion oriented in the front-rear direction of movement and a front portion oriented in the width direction,
The position adjusting mechanism is provided along the side part,
A mobility aid characterized by that.

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