JP2007267939A - Walk assisting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a walk assisting device which can soften an impact to a user when a hanging rope is raised. <P>SOLUTION: This walk assisting device is equipped with a post 2, a hanging rod 3, a human body suspending point 4, a mechanism suspending point 8, an elastic stretching/contracting mechanism 5, a taking-up mechanism 7, the hanging rope 16, and a movable pulley 151. In this case, the hanging rod 3 is attached to the upper section of the post in such a manner that a seesaw motion reciprocating in the vertical direction by a fulcrum may be performed. The human body suspending point 4 is provided on the other end section 15 which is located rearward of the fulcrum 14 of the hanging rod 3. The mechanism suspending point 8 is provided at one end section which is located forward of the fulcrum of the hanging rod 3. The elastic stretching/contracting mechanism 5 is attached to the post 2 and a device frame 9 which is connected with the post. The taking-up mechanism 7 is attached to the post 2 and the device frame 9 which is connected with the post. One end 16a of the hanging rope 16 is connected with the upper section of the elastic stretching/contracting mechanism 5, and the other end 16b is connected with the taking-up mechanism 7 through the human body suspending point 4. The movable pulley 151 is placed on the hanging rope 16 which is suspended from the human body suspending point 4. The movable pulley 151 is equipped with a hook 200 for suspending the human body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a walking support device that can reduce impact to a user when a hanging rope moves up.

2. Description of the Related Art A walking assist device is known in which a human body is suspended by attaching a spring in the middle of a suspension band. This walking support device includes an operation button of an electric winch that winds a suspension rope.
However, in this walking support device, the suspension rope is simply suspended from the suspension point of the human body, and the speed at which the suspension rope moves up is proportional to the winding speed. Easy to communicate.
JP 2001-346842 A JP 2002-58712 A

  The problem to be solved by the invention is that, in the conventional walking assistance device, an impact is easily transmitted to the user when the suspension rope moves up.

The walking support device of the present invention has a support, a suspension bar attached to the top of the support so as to perform a seesaw motion that reciprocates in the vertical direction at the fulcrum, and the other end located behind the fulcrum of the suspension bar. A provided human body suspension point, a mechanism suspension point provided at one end located in front of the fulcrum of the suspension rod, an elastic expansion / contraction mechanism attached to the apparatus frame connected to the column and the column, and the column A winding mechanism attached to the device frame connected to the support column, a suspension rope having one end connected to the upper part of the elastic telescopic mechanism and the other end connected to the winding mechanism via a human body suspension point And a moving pulley that can be moved up and down by being hung from a hanging rope suspended from a hanging point of the human body, and the moving pulley includes a hook for hanging the human body.
The other end side dimension from the fulcrum of the suspension bar to the human body suspension point of the suspension bar is also longer than the one end side dimension from the fulcrum of the suspension bar to the mechanism suspension point of the suspension bar.
The hanging rod is also provided with a stopper for restricting the upward movement of the other end of the hanging rope.

According to the present invention, by adopting the movable pulley, when the number of rotations of the winding mechanism is the same, the suspension rope is lifted as compared with the case where the suspension rope suspended from the human body suspension point is moved up as it is. A gentle walking support device that can slow down the speed of movement, and the moving pulley slides on the hanging rope and the moving pulley moves up smoothly, so that the impact on the user when moving up can be reduced. Is obtained.
With a suspension rod like a seesaw, the other end side dimension from the suspension bar fulcrum to the suspension bar human body suspension point is longer than the one end dimension from the suspension bar fulcrum to the suspension bar mechanism suspension point Therefore, the vertically movable width of the human body suspension point can be increased and the lifting force applied to the human body suspension point by the lifting device can be increased. That is, it is possible to increase the vertically movable width of the user suspended at the human body suspension point and to increase the lifting force for reducing the weight load of the user. Therefore, it is possible to obtain a walking support device that can reduce the user's weight load and can follow the user's vertical movement accompanying the user's walking motion to support natural walking. In addition, since the vertically movable width of the mechanism hanging point can be made smaller than the vertically movable width of the human body hanging point, the fluctuation of the lifting force accompanying the vertical movement of the user suspended at the human body hanging point is reduced. it can. And since the up-and-down movable width of the user suspended at the human body suspension point is increased, the other end of the suspension bar is positioned above the fulcrum in a state where no human is suspended at the human body suspension point. In the walking support apparatus having the configuration, the walking support apparatus can be provided which can move the position of the human body suspension point downward by operating the winding mechanism and can easily shift from the wheelchair.
Since the suspension bar has a stopper that restricts the upward movement of the other end of the suspension rope, a lifting force is applied to the user after the upward movement of the other end of the suspension rope is restricted by the stopper. Therefore, it is possible to provide a highly safe walking support device without the user being suspended.

  1 to 3 show a walking support device according to the best mode of the present invention, FIG. 1 shows a walking support device, FIG. 2 shows a simplified configuration of the walking support device, and FIG. The structure of the case is disassembled.

  FIG. 2; With reference to FIG. 3, the outline | summary of the walk assistance apparatus 1 is demonstrated first. The walking support device 1 includes a column 2, a suspension rod 3, a human body suspension point 4, an elastic telescopic mechanism 5, a winding mechanism 7, a mechanism suspension point 8, a device frame 9, a traveling unit 10, and a lifting mechanism 86.

  The support column 2 extends vertically. The device frame 9 is connected to the support 2. The apparatus frame 9 includes a base frame portion 33 at a lower portion, and the traveling unit 10 is provided on the base frame portion 33.

  The suspension bar 3 is rotatably attached to the upper part of the support 2 to perform a seesaw motion in which the one end portion 12 and the other end portion 15 reciprocate in the vertical direction with the rotation center shaft 13 as a fulcrum 14.

The human body suspension point 4 is provided at the other end portion 15 of the suspension rod 3 located behind the fulcrum 14 of the suspension rod 3.
The mechanism suspension point 8 is provided at one end portion 12 of the suspension bar 3 positioned in front of the fulcrum 14 of the suspension bar 3.

  The other end side dimension a from the fulcrum 14 of the suspension bar 3 to the human body suspension point 4 of the suspension bar 3 is longer than the one end side dimension b from the fulcrum 14 of the suspension bar 3 to the mechanism suspension point 8 of the suspension bar 3. .

  The elastic expansion / contraction mechanism 5 will be described. As shown in FIG. 2, the elastic expansion / contraction mechanism 5 includes a coil spring 51 and a storage case 52 as elastic bodies. As shown in FIG. 3, the storage case 52 includes a large-diameter cylinder 53 that is closed at the lower end of the upper end opening, a small-diameter cylinder 54 that is closed at the upper end of the lower end opening, and a fastening cap 55. The inner diameter d of the large diameter cylinder 53 is larger than the outer diameter of the small diameter cylinder 54. A groove 58 is formed in the cylindrical wall of the large-diameter cylindrical body 53. The groove 58 extends from the inner peripheral surface 56 to the outer peripheral surface 57 of the cylindrical wall and extends in a straight line from the upper end opening 59 toward the lower end 60. A scale 61 for lifting force is provided on the outer peripheral surface 57 next to the groove 58 in the vertical direction of the groove 58. A pointer shaft 63 that protrudes outward from the outer peripheral surface 62 is provided below the outer peripheral surface 62 of the cylinder of the small-diameter cylindrical body 54. When the small-diameter cylindrical body 54 is accommodated in the cylinder of the large-diameter cylindrical body 53, the pointer shaft 63 protrudes to the outside of the outer peripheral surface 57 of the large-diameter cylindrical body 53 from the groove 58 via the groove 58. It can move up and down. When the pointer shaft 63 is positioned beside a certain scale value of the scale portion 61, the scale portion 61 is formed such that the scale value indicates the lifting force. A threaded portion 64 is formed on the outer peripheral surface 57 of the large-diameter cylindrical body 53 on the upper end opening 59 side. A threaded portion 64 a (see FIG. 2) that is screwed into the threaded portion 64 is formed on the inner wall of the cylinder of the fastening cap 55. As shown in FIG. 2, the elastic expansion / contraction mechanism 5 is provided on the bottom surface of the cylinder of the small-diameter cylindrical body 54 by connecting one end 66 of the coil spring 51 to the anchoring portion 65 provided on the bottom surface of the cylinder of the large-diameter cylindrical body 53. The other end 68 of the coil spring 51 is connected to the moored portion 67 so that the cylinder portion on the lower end opening side of the small diameter cylindrical body 54 is fitted inside the cylinder on the upper end opening 59 side of the large diameter cylindrical body 53 and the pointer shaft 63. Is inserted into the groove 58, and the fastening cap 55 is inserted into the outer peripheral surface 62 of the small diameter cylindrical body 54 from the upper end closing side of the small diameter cylindrical body 54 and fastened to the screw portion 64 of the large diameter cylindrical body 53. The coil spring 51 can be connected to the small-diameter cylindrical body 54 and the large-diameter cylindrical body 53 by hooking hooks at both ends of the coil spring 51 to the anchoring portion 65 and the anchoring portion 67. And the one end part 16a of the suspension rope 16 is connected with the connection part 22 formed in the upper end part of the elastic expansion-contraction mechanism 5, and the lower end part 24 and the apparatus frame part 9 of the elastic expansion-contraction mechanism 5 are mutually connected. The other end 16b of the suspension rope 16 is connected to a winding frame 92 described later, and an operation handle 94 of the winding mechanism 7 described later is operated to rotate the winding frame 92 in a direction in which the suspension rope 16 is wound. The coil spring 51 extends in the vertical direction. At this time, the force that the coil spring 51 tries to return to the original state (the force that the coil spring 51 tries to contract) becomes the lifting force, and the value of the lifting force is the scale on the side of the pointer shaft 63 at that time. Indicated by value. That is, by operating the winding mechanism 7 and winding the suspension rope 16 around the winding frame 92, the lifting force can be increased, and by lifting the suspension rope 16 from the winding frame 92, the lifting force can be decreased. That is, the lifting force (weight unloading amount) that lifts the body of the user 19 wearing the wearing tool 18 is determined by the winding amount of the hanging rope 16 by the winding mechanism 7, and the lifting force 1 The walking assist device 1 can be obtained which can easily change the lifting force and can easily change the lifting force.

  Next, with reference to FIG. 1, an example of the walking support device 1 according to the best mode in which the support column 2, the suspension rod 3, the device frame 9, the elevating mechanism 86 and the like are more specifically described will be described in detail.

  First, the structure of the support | pillar 2 and the apparatus frame 9 is demonstrated. The column 2 is formed by a left column 31 and a right column 32. The device frame 9 is connected to the support 2. The apparatus frame 9 includes a base frame portion 33 and a support column support frame portion 34.

  The base frame part 33 includes a left frame part 35, a right frame part 36, and a front frame part 37. The left frame part 35 and the right frame part 36 extend in the front-rear direction and are arranged in parallel with a certain distance therebetween. The front frame portion 37 extends in the left-right direction, and the left end is connected to the front end of the left frame portion 35 and the front end of the right frame portion 36. An open / close portion 38 is opened between the rear end of the left frame portion 35 and the rear end of the right frame portion 36. The user 19 can go in and out between the position just below the human body suspension point 4 and the outside via the access portion 38. That is, when a person stands outside the right frame portion 36 and faces the left frame portion 35 as viewed from above, the base frame portion 33 has a U shape with the rear portion opened. The left column 31 is provided to rise above the rear position from the middle of the front and rear of the left frame portion 35. The right column 32 is provided so as to rise above the rear position from the middle of the right frame portion 36 before and after. The left column 31 and the right column 32 are provided to be inclined forward from the rear.

  The column support frame part 34 includes left and right intermediate support frame parts 41; 42, an intermediate upper connection frame part 43, an intermediate front connection frame part 44, left and right upper and lower connection frame parts 45; 46, and left and right front and rear connection frame parts 47; 48. The upper connection frame part 49 is provided. The left intermediate support frame portion 41 connects a position shifted to the left with respect to the left and right intermediate portions of the front frame portion 37 and the upper and lower intermediate positions of the left support column 31. The right intermediate support frame portion 42 connects the position shifted to the right from the left and right middle of the front frame portion 37 and the upper and lower middle positions of the right column 32. The intermediate upper connecting frame portion 43 connects the intermediate positions where the left column 31 and the right column 32 face each other. The middle upper connecting frame portion 43 connects the left connecting point 71 between the left intermediate supporting frame portion 41 and the left column 31 and the right connecting point 72 between the right intermediate supporting frame portion 41 and the right column. The middle upper connecting frame portion 43 includes a left front and rear portion 73 extending forward from the left connecting point 71, a right front and rear portion 74 extending forward from the right connecting point 72, a left front and rear portion 73, and a right front and rear portion 74. It is formed by the front left and right portions 75 to be connected, and is U-shaped when viewed from the top like the base frame portion 33. The middle front connection frame portion 44 connects the left middle support frame portion 41 and the right middle support frame portion 42 to each other at a portion located below the left connection point 71 and the right connection point 72. The left upper and lower connecting frame portion 45 connects the left end portion of the intermediate front connecting frame portion 44 and the left end portions of the front left and right portions 75 of the intermediate upper connecting frame portion 43 located immediately above the left end portion. The right upper and lower connecting frame portion 46 connects the right end portion of the intermediate front connecting frame portion 44 and the right end portions of the front left and right portions 75 of the intermediate upper connecting frame portion 43 positioned directly above the right end portion. The left front / rear connection frame portion 47 extends rearward from the left side portion of the left intermediate support frame portion 41 corresponding to the left end portion of the intermediate front connection frame portion 44 beyond the left column 31 and the left side portion of the left intermediate support frame portion 41. And the left column 31 are connected to each other. The right front and rear connection frame portion 48 extends rearward from the right side of the left intermediate support frame portion 41 corresponding to the right end portion of the intermediate front connection frame portion 44 over the right column 32 and the right side portion of the left intermediate support frame portion 41. And the right column 32 are connected to each other. The upper connection frame portion 49 connects the upper end portion of the left column 31 and the upper end portion of the right column 32 to each other. The support column frame 34 gives strength to the support 2 with respect to the force applied from the left and right directions of the support 2 and the force applied from the front and rear directions of the support 2.

  The suspension rod 3 includes a left suspension rod 81, a right suspension rod 82, and a connection rod 83, and has a structure in which the left suspension rod 81 and the right suspension rod 82 are connected to each other by the connection rod 83 in a state where the left suspension rod 81 and the right suspension rod 82 are opposed to each other. . A bearing portion 84 is formed at a position shifted from an intermediate position of the entire length of the left hanging rod 81 and the right hanging rod 82. A bearing portion 85 is provided at the upper ends of the left column 31 and the right column 32. Both end portions of the rotation center shaft 13 serving as the fulcrum 14 of the suspension rod 3 are rotatably attached to the bearing portions 84 and 85. That is, the suspension rod 3 is a rotation center shaft that is rotatably attached to the bearing portion 84 provided in a portion closer to the one end portion 12 than the central portion in the length direction of the suspension rod 3 and the bearing portion 85 in the upper portion of the column 2. As a result, the one end 12 and the other end 15 reciprocate in the vertical direction with respect to the rotation center shaft 13 as a fulcrum 14.

  The lifting mechanism 86 includes a winding mechanism 7, a rotation center shaft 13, a suspension rope 16, a moving pulley portion 87, a guide pulley portion 88, a suspension rod 3, an elastic telescopic mechanism 5, and a base frame portion 33. The winding mechanism 7 is a mechanism that is attached to the left portion of the front frame portion 37 of the base frame portion 33 and winds or unwinds the suspension rope 16. The winding mechanism 7 is formed by a manually wound winch device. The winding mechanism 7 includes a winding frame 92 and an operation handle 94 for operating rotation of the winding frame 92. The winding frame 92 includes a mechanism such as a ratchet mechanism or a lock mechanism. Can maintain state

  The moving pulley portion 87 is provided at the rear end portion of the left suspension rod 81 and the rear end portion of the right suspension rod 82, respectively. The moving pulley 87 includes a moving pulley 151, front and rear support pulleys 152; 153, and a moving pulley stopper 154. The guide pulley unit 88 includes guide pulleys 155 and 156 provided on the connecting rod 83 and guide pulleys 157 and 158 and 159 provided on the rotation center shaft 13. The elastic expansion / contraction mechanism 5 has a lower end portion 24 attached to the right end portion of the front frame portion 37 of the base frame portion 35 by welding, bolts and nuts or the like. One end 16a of the suspension rope 16 is connected to a connection portion 22 formed at the upper end of the elastic telescopic mechanism 5, and the other end 16b of the suspension rope 16 is a guide pulley 155, a right guide pulley 157, and a right movable pulley portion. Support pulley 152 in front of 87, dynamic pulley 151, support pulley 153 in the rear, guide pulley 158, support pulley 153 in the rear of the left dynamic pulley section 87, dynamic pulley 151, front support pulley 152, guide pulley 159, guidance The other end is connected to the winding frame 92 via the pulley 156. Note that the length of the hanging rope 16 is determined so that the hooking tool 200 provided on the movable pulley 151 is lowered to a position about the height of the seat plate of the wheelchair when completely unwound from the winding frame 92. It is done.

  The raising / lowering operation by the raising / lowering mechanism 86 is demonstrated. When the pulley holding case 159a of the moving pulley 151 collides with the moving pulley stopper 154 and the moving pulley stopper 154 moves the moving pulley 151 downward from the state where the moving pulley 151 is restricted from moving upward, the caregiver For example, by rotating the operation handle 94, the movable pulley 151 is moved downward to the position of the waist of the person on the wheelchair. The figure provided in the upper end of the suspension rope 201 (refer FIG. 2) of the mounting tool 18 with which the user 19 who got on the wheelchair who entered between the left support | pillar 31 and the right support | pillar 32 via the entrance / exit part 38 was equipped. The outer hooking tool is hooked on the hooking tool 200 of the movable pulley 151. Then, a caregiver or the like operates the operation handle 94 to move the movable pulley 151 upward. Even after the upward movement of the movable pulley 151 is restricted by the movable pulley stopper 154, if the operating handle 94 is operated and the winding frame 92 is continuously rotated in the winding direction, the suspension rope 16 is wound around the winding frame 92. By continuing to be taken, the coil spring 51 of the elastic expansion / contraction mechanism 5 is extended, and a lifting force is applied to the human body suspension point 4. If the desired lifting force is set by looking at the scale of the elastic telescopic mechanism 5, the user can be lifted with the desired lifting force and can walk with a reduced weight load.

  1, the human body suspension point 4 is formed by the rope suspension points of the front and rear support pulleys 152; 153, and the mechanism suspension point 8 is the side closest to the one end 16a of the suspension rope 16. It is formed by the rope suspension point of the guide pulley 155 that guides. That is, a suspension rope 16 in which one end portion 16a is coupled to the upper portion of the elastic telescopic mechanism 5 and the other end portion 16b is coupled to the winding mechanism 7 via the human body suspension point 4 and the human body suspension point 4 are formed. The movable pulley 151 is provided on a suspension rope 16 suspended from the front and rear support pulleys 152 and 153 and can move up and down. The movable pulley 151 includes a hook 200 for hanging the user 19.

  In the best mode, the other end side dimension a from the fulcrum 14 of the suspension rod 3 to the human body suspension point 4 of the suspension rod 3 is the one end side from the fulcrum 14 of the suspension rod 3 to the mechanism suspension point 8 of the suspension rod 3. Since the length is longer than the dimension b, the up and down movable width of the user 19 suspended at the human body suspension point 4 can be increased. That is, the vertically movable width of the human body hanging point 4 = the vertically movable width of the mechanism hanging point 8 × (a / b). Therefore, it becomes possible to follow the vertical movement of the user 19 accompanying the walking motion of the user 19 and increase the lifting force for reducing the weight load of the user 19. Therefore, the walking support device 1 that can support walking so that even the user 19 who cannot support his / her weight by himself / herself can walk naturally can be obtained.

  Moreover, when the position of the human body hanging point 4 moves up and down with the walking motion of the user 19 from the state where the lifting force is acting on the human body hanging point 4, the lifting force varies. Since the other end side dimension “a” is longer than the one end side dimension “b”, the vertically movable width of the mechanism suspension point 8 can be made smaller than the vertically movable width of the human body suspension point 4 and is suspended at the human body suspension point 4. The fluctuation of the lifting force accompanying the vertical movement of the user 19 can be reduced.

  For example, when the ratio of the other end side dimension a to the one end side dimension b is 7: 1, in order to apply a lifting force of 25 kg to the human body hanging point 4, the mechanism hanging point 8 is set to a force of 175 kg. It is necessary to pull it down. Then, the position of the human body suspension point 4 can be moved up and down by 10.5 cm in accordance with the user's walking movement from the state in which a lifting force of 25 kg is applied to the human body suspension point 4 (that is, In order to make the vertically movable width of the human body hanging point 4 21 cm), the mechanism hanging point 8 must be movable up and down by 1.5 cm by extending and contracting the coil spring 51 (that is, the mechanism hanging). The vertical movable width of point 8 is 3 cm). Therefore, in this case, a coil spring 51 that can apply a force of 175 kg to the mechanism suspension point 8 and can move the mechanism suspension point 8 up and down by 1.5 cm may be used. That is, the coil spring 51 may be selected according to the maximum lifting force that is desired to be set and the maximum vertically movable width of the position of the human body suspension point 4. In this case, the vertically movable width of the user 19 suspended at the human body suspension point 4 can be increased to 21 cm, and the lifting force for reducing the weight load on the user 19 can be increased to about 25 kg. Therefore, the human body hanging point 4 can follow the vertical movement of the user 19 accompanying the walking movement of the user 19, and the lifting force for reducing the weight load of the user 19 is also large. Even if it is the user 19 who cannot support, the walk assistance apparatus 1 which can assist walk so that natural walk can be performed is obtained. Further, the vertically movable width of the mechanism hanging point 8 can be 3 cm with respect to the vertically movable width 21 cm of the human body hanging point 4, and the vertically movable width of the mechanism hanging point 8 can be vertically moved by the human body hanging point 4. Since it can be made smaller than the possible width, it is possible to reduce the fluctuation of the lifting force accompanying the vertical movement of the user 19 suspended at the human body suspension point 4.

  When the other end side dimension a and the one end side dimension b are the same, when the other end side dimension a is made shorter than the one end side dimension b, and when the other end side dimension a is made longer than the one end side dimension b When the other end side dimension “a” is longer than the one end side dimension “b”, the user 19 suspended at the human body suspension point 4 can have a larger vertical movable width and the weight of the user 19 can be increased. The lifting force for reducing the load can be increased, and the fluctuation of the lifting force accompanying the vertical movement of the user 19 can be reduced.

  Furthermore, according to the best mode, the up and down movable width of the user 19 suspended at the human body suspension point 4 can be increased and the lifting force for reducing the weight load of the user 19 can be increased, In the walking support device 1 that can reduce the fluctuation of the lifting force accompanying the vertical movement of the user 19, by providing the lifting mechanism 86, a person on the wheelchair can be lifted from the state on the wheelchair, A walking support device 1 that can be used even by a person on a wheelchair is obtained.

  Moreover, since it was made into the raising / lowering structure by the dynamic pulley 151, when the rotation speed of the winding mechanism 7 is the same, compared with the case where the suspension rope 6 suspended from the human body suspension point 4 is moved up as it is, the suspension rope 6 is made. The speed to move up can be slowed down. In addition, since the movable pulley 151 slides on the suspension rope 6 and the movable pulley 151 moves up smoothly, the lifting and lowering operation of the hooking tool 200 becomes gentle, and the impact on the user 19 during the upward movement can be reduced. A gentle walking support device 1 that can be used is obtained. Further, since the lifting force is applied to the user 19 after the upward movement of the moving pulley 151 is restricted by the moving pulley stopper 154, the user 19 is not suspended from the air, and safety is ensured. high.

  Further, in the best mode, the other end side dimension a of the suspension bar 3 is made longer than the one end side dimension b, so that the vertically movable width of the user 19 suspended at the human body suspension point 4 is increased. In a state where no person is suspended from the hanging point 4, the other end 15 of the hanging rod 3 is positioned above the fulcrum 14. In the walking support device 1 having such a configuration, the position of the hooking tool 200 can be moved downward by the elevating mechanism 86, so that the work of hooking the hooking tool of the mounting tool 18 on the hooking tool 200 becomes easy. There is. That is, by operating the winding mechanism 7 so that the position of the human body suspension point 4 can be moved downward, it is possible to provide the walking support device 1 that can be easily shifted from the wheelchair. Further, there is a significance that even a short person can hook the hooking tool 18 on the hooking tool 200.

Moreover, according to the walking assistance apparatus 1 of the best form, since the winding mechanism 7 is provided and the lifting force is determined by the winding amount of the suspension rope 16 by the winding mechanism 7, the winding mechanism 7 is By operating and winding the suspension rope 16 or unwinding, the lifting force can be easily changed, and the walking assist device 1 that is easy to operate for changing the lifting force can be obtained.
In addition, since the coil spring 51 is used as the elastic body of the elastic expansion / contraction mechanism 5, the configuration of the elastic expansion / contraction mechanism 5 can be simplified, and the walking support device 1 having a configuration that can easily change the lifting force can be obtained at low cost. it can.
Further, by using a hand-winding winch device as the winding mechanism 7, it is possible to easily change the lifting force.
Moreover, since the user feels as if he / she pushes the heavy front side by using the front side where the elastic expansion / contraction mechanism is provided as shown in FIG. 2, the walking support device 1 can be easily moved forward. .
In addition, when the user 19 is used facing the front side where the elastic expansion / contraction mechanism 5 is provided, if the elastic expansion / contraction mechanism 5 is in the center of the front, the user 19's front field of view is hindered. As shown in FIG. 1, a device that does not obstruct the front field of view can be obtained by being provided close to the front right end (or left end).

  In addition, in the walking support device of Patent Document 1, for example, when the user is a child who is light, short, and weak, depending on the spring force of the spring, the user can be lifted by winding the rope with an electric winch. This is dangerous. In the present invention, in order to prevent such a phenomenon, a moving pulley stopper 154 for restricting the upward movement of the moving pulley 151 beyond a certain level is provided, and the lifting force in a state where the user 19 cannot be lifted above a certain height. It is safe because it adds.

  A plate is provided at the upper and lower ends of the coil spring, the upper end plate is connected to the inner bottom of the large diameter cylindrical body 53 with a wire, the lower end plate is connected to the inner bottom of the small diameter cylindrical body 54 with a wire, and the adjustment rope 6 is wound. By using the elastic expansion and contraction mechanism 5 having a structure in which the force that the coil spring tries to return to the original state (the force that the coil spring tries to extend) is the lifting force by contracting the coil spring between the upper and lower plates. May be. In this case, since the state in which the coil spring is fully contracted functions as a fall prevention stopper, it is not necessary to provide the fall prevention stopper 29 on the upper portion of the column 2. Rubber may be used as the elastic body of the elastic expansion / contraction mechanism 5. You may use the elastic expansion-contraction mechanism 5 using the elastic function by a fluid. The other end side dimension a and the one end side dimension b may be the same. Even in this case, the use of the movable pulley 151 makes it easy to route the rope, and the rope can be routed along the suspension rod 3, so that the rope is less likely to come off the guide pulley.

The perspective view (best form) of a walking assistance apparatus. The figure which showed the outline of the walking assistance apparatus (partial cross section) (best form). The disassembled perspective view which shows the storage case of an elastic expansion-contraction mechanism (best form).

Explanation of symbols

1 walking support device, 2 struts, 3 suspension rods, 4 human body suspension points,
5 Elastic telescopic mechanism, 6 Adjustment rope, 7 Winding mechanism, 8 Mechanism hanging point,
9 Equipment frame, 14 fulcrum, 16 suspension rope, 151 movable pulley,
154 Stopper, 200 Hook, a other end side dimension, b one end side dimension.

Claims (3)

  A support rod, a suspension rod attached to the top of the support column so as to perform a seesaw motion that reciprocates in the vertical direction at a fulcrum, and a human body suspension point provided at the other end located behind the fulcrum of the suspension rod , A mechanism suspension point provided at one end located on the front side of the fulcrum of the suspension bar, an elastic expansion / contraction mechanism attached to the device frame connected to the column and the column, and a device frame connected to the column and the column A winding mechanism attached to the suspension mechanism, a suspension rope having one end connected to the upper part of the elastic expansion / contraction mechanism and the other end connected to the winding mechanism via a human body suspension point, and suspended from a human body suspension point A walking support device comprising a moving pulley that is stretched over a suspended suspension rope and that can move up and down, and the moving pulley includes a hook for hanging a human body.   The other end side dimension from the fulcrum of the suspension bar to the human body suspension point of the suspension bar is longer than the one end side dimension from the fulcrum of the suspension bar to the mechanism suspension point of the suspension bar. Walking support device.   The walking support device according to claim 1 or 2, wherein the suspension bar includes a stopper that restricts the upward movement of the other end of the suspension rope.

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