WO2021040052A1 - Canne et poignée de canne - Google Patents

Canne et poignée de canne Download PDF

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Publication number
WO2021040052A1
WO2021040052A1 PCT/JP2020/032968 JP2020032968W WO2021040052A1 WO 2021040052 A1 WO2021040052 A1 WO 2021040052A1 JP 2020032968 W JP2020032968 W JP 2020032968W WO 2021040052 A1 WO2021040052 A1 WO 2021040052A1
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WIPO (PCT)
Prior art keywords
cane
grip
user
curved portion
shaft
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PCT/JP2020/032968
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English (en)
Japanese (ja)
Inventor
翔平 上野
裕太 堺
Original Assignee
株式会社Ｗｅｌｌｏｏｐ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 株式会社Ｗｅｌｌｏｏｐ filed Critical 株式会社Ｗｅｌｌｏｏｐ
Publication of WO2021040052A1 publication Critical patent/WO2021040052A1/fr

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B3/00—Sticks combined with other objects
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B9/00—Details
    • A45B9/02—Handles or heads

Definitions

  • the present invention relates to a cane and a grip for the cane.
  • a cane has been widely used as a device to assist walking.
  • a general cane is composed of a rigid body such as wood or metal and a handle.
  • many canes that come into contact with the ground at one point when walking are commercially available.
  • canes that are in contact with the ground at four points and have a structure that is stable even when weight is applied are also used (see, for example, Patent Document 1).
  • an object of the present invention is to provide a cane and a grip for the cane that suppress the impact on the body.
  • a grip for a cane that the user holds by hand, and (a1) an upper surface on which the user's palm is placed with the wrist on the back side in the walking direction, and (a2) the above.
  • the upper surface is provided with a curved portion that curves downward from the front side in the walking direction, and (a3) the upper surface has (a3-1) a plurality of fingers of the user engaged with the curved portion to grip the grip.
  • a proximal lateral arch that is provided at a position corresponding to the carpal cane row of the user's hand, extends laterally perpendicular to the walking direction, and curves upwardly, and / or (a3).
  • the grip When a plurality of fingers of the user grip the grip in relation to the curved portion, the grip is provided at a position corresponding to the distal portion of the user's hand, and is provided in a lateral direction perpendicular to the walking direction.
  • a grip for a cane is provided that extends to and has a distal lateral arch that curves upwardly.
  • a grip for a cane that the user holds by hand, and (b1) an upper surface on which the user's palm is placed with the wrist on the back side in the walking direction, and (b2) the above. It is provided with a lower surface provided with a space from the upper surface, and (b3) a curved portion provided on the front side in the walking direction by connecting the upper surface and the lower surface and having a width wider than a plurality of fingers of the user. b4) A grip for a cane in which the upper surface, the curved portion, and the lower surface form a U shape is provided.
  • a grip for a cane that the user holds by hand, and (c1) an upper surface on which the user's palm is placed with the wrist on the back side in the walking direction, and (c2) walking. It is provided on the front side of the direction, has a width wider than a plurality of fingers of the user, and has a curved portion that curves from the front side of the upper surface of the grip in the walking direction to the downward direction and the rear direction in the walking direction.
  • a grip for the cane is provided.
  • a cane provided with (d1) a grip for the cane described above, (d2) a shaft connected to the grip for the cane, and (d3) a ground contact portion connected to the shaft. Is provided.
  • a cane and a grip for the cane that suppresses an impact on the body. Further, according to one aspect of the present invention, it is possible to provide a cane and a grip for the cane that easily absorb the reaction force from the floor. Further, according to one aspect of the present invention, it is possible to provide a cane that is easy to walk and a grip for the cane.
  • the cane is used not only to assist the difficulty of walking due to old age, but also to rehabilitate and carry out daily life for people who have hemiplegia due to illness. People with hemiplegia often put on more weight when using a cane. Overuse of the cane under such conditions may cause symptoms such as carpal tunnel syndrome. When such a symptom occurs, it affects daily life and work such as opening and closing buttons of clothes and typing work of a personal computer. Also, for a hemiplegic person, the hand using the cane is a healthy hand, and the unparalyzed hand will also develop the disease.
  • canes that can reduce the risk of secondary disability caused by routine use of the cane (eg, carpal tunnel syndrome, periarthritis of the shoulder, etc.) and grips for constructing such canes. , Shafts and feet are required.
  • Shafts and feet are required.
  • providing a cane and a cane component that absorbs the reaction force from the floor and suppresses the impact on the body is of great social significance as well as a technical point of view.
  • split walking refers to walking in which the legs are advanced in a semicircle rather than the legs are advanced from the knees. This is often seen even when a cane with multi-point support such as 4 points is used. It is thought that this is because the cane supports the weight but does not consider the movement of human walking. Continued unnatural gait can come at a cost in other parts of the body and cause secondary disability. Therefore, there is a need for a cane that is easy to operate, does not put a burden on the body, and can walk naturally, and a grip, shaft, and foot for forming such a cane.
  • FIG. 1 is a configuration diagram of a cane according to the present embodiment.
  • the cane 1 of the present embodiment includes a grip 10, a shaft 20, and a foot portion 30.
  • the grip 10 is a portion where the user holds the cane by hand.
  • the grip 10 may be referred to as, for example, a handle or a grip.
  • the grip 10 is connected to the shaft 20.
  • the shaft 20 is a portion connected between the grip 10 and the foot portion 30.
  • the shaft 20 may be referred to as, for example, a handle or a strut.
  • the foot portion 30 is a portion that comes into contact with the ground or the like.
  • the foot portion 30 is connected to the shaft 20.
  • the foot portion 30 may simply represent a portion that comes into contact with the ground, in addition to the configuration described later.
  • the foot portion 30 may be integrated with the shaft 20, rubber or other elastic body attached to the lower part of the shaft, or the like.
  • the foot portion 30 may be referred to as, for example, a ground contact portion.
  • the shaft 20 may have a known shape or an appropriate shape, in addition to the configuration described later.
  • the grip 10, the shaft 20, and the foot 30 are configured as separate elements and are connected to each other to form the cane 1, but the grip 10, the shaft 20, and the foot 30 are integrally configured.
  • two of the grip 10, the shaft 20 and the foot 30 may be integrally formed and connected to the other one. The detailed configuration of each part will be described later.
  • each direction is defined as follows.
  • the direction in which the user holds the cane 1 and walks is the front-back direction
  • the walking direction is the forward direction
  • the opposite is the rear direction.
  • the vertical direction is the vertical direction with respect to the horizontal ground
  • the ground side is the downward direction
  • the opposite is the upward direction.
  • the upper side of the cane 1 corresponds to the grip side in the longitudinal direction of the cane 1
  • the lower side of the cane 1 is defined as.
  • the direction orthogonal to the above-mentioned front-back direction and vertical direction is defined as the lateral direction (horizontal direction).
  • the direction may differ depending on whether the hand holding the cane 1 is the right hand or the left hand, assuming the hand holding the cane 1, the thumb side of the hand is the thumb direction (thumb side), and the little finger side of the hand is the little finger direction (pinkie side). Side). If the hand holding the cane 1 is turned upside down, the direction of the thumb and the direction of the little finger are reversed. That is, the cane 1 (particularly the grip 10) can be provided for the right hand and the left hand. If it is not related to the hand holding the cane 1, it may be simply lateral or horizontal.
  • the stance phase is the period from the attachment of the target leg to the attachment of the other leg
  • the swing phase is the period from the attachment of the other leg to the attachment of the target leg.
  • the stance phase transitions from the initial ground contact to the load response phase, the middle stance phase, and the final stance phase.
  • the load reaction period is roughly the period from the initial contact to the release of the toe of the other leg.
  • the mid-standing period is roughly the period after the load response period until the heel of the subject's leg rises.
  • the late stance is roughly the period after the middle stance until the other leg is attached.
  • the swing phase transitions in the order of the early swing leg, the early swing leg, the middle swing leg, and the final swing leg.
  • the early swing leg is roughly the period from the initial contact of the other leg to the release of the toe of the target leg.
  • the initial stage of the swing leg is roughly the period from the early stage of the swing leg until both feet are close to each other.
  • the middle swing period is roughly the period after the early swing leg until the tibia of the target leg becomes vertical.
  • the late swing leg is roughly the period after the middle swing leg until the target leg is attached.
  • the cane it is possible to refer to the same name as the above-mentioned leg.
  • FIG. 2 shows a configuration diagram of the grip 10 according to the present embodiment.
  • 2 (a) is a perspective view
  • FIG. 2 (b) is a top view
  • FIG. 2 (c) is a front view
  • FIG. 2 (d) is a side view.
  • the grip 10 includes an upper surface (upper part) 11, a lower surface (lower part) 12, a curved portion 13, and a connecting portion 14.
  • the grip 10 is a grip for a cane that the user grips by hand.
  • Each part of the grip 10 may be integrally formed.
  • the upper surface 11, the lower surface 12, and the curved portion 13 may be formed of an elastic body such as rubber, a highly repulsive material, or the like.
  • the upper surface 11 is a part on which the user of the cane 1 puts his / her palm.
  • the user's thumb folds downward from the portion of reference numeral 111 (in FIG. 2B, the back side of the paper surface) to grip the grip 10, and the other four fingers of the user
  • the grip 10 is gripped by folding downward from the position of the code 112.
  • the upper surface 11 has a width wider than the width of a plurality of fingers.
  • the upper surface 11 has a width wider than the width of four fingers other than the assumed user's thumb.
  • the grip 10 can provide various sizes such as S, M, and L according to the assumed size of the user's hand.
  • the example of FIG. 2 shows the grip 10 for the left hand, but the grip for the right hand may be flipped left and right.
  • the lower surface 12 is provided with a space (cavity) 15 separated from the upper surface 11.
  • the end of the lower surface 12 is connected to the end of the upper surface 11 by a curved portion 13.
  • the curved portion 13 curves downward from the front side of the upper surface 11 in the walking direction.
  • the upper surface 11 has a proximal lateral arch portion 113.
  • the proximal lateral arch portion 113 is located at a position corresponding to the carpal tunnel row of the user's hand when a plurality of fingers (for example, four fingers) of the user engage with the curved portion 13 to grip the grip 10. It is provided in.
  • the proximal lateral arch portion 113 extends in the lateral direction perpendicular to the walking direction and is curved upwardly.
  • the upper surface 11 has a distal lateral arch portion 114.
  • the distal lateral arch 114 is located at a position corresponding to the distal portion of the user's hand when a plurality of fingers (eg, four fingers) of the user grip the grip 10 with respect to the curved portion 13.
  • the distal lateral arch 114 extends laterally perpendicular to the walking direction and is curved upwardly.
  • the grip 10 of the present embodiment positions the user's hand with respect to the proximal lateral arch portion 113 and the distal lateral arch portion 114 by hooking the finger of the hand on the curved portion 13 (particularly, the hook portion described later). It is configured so that it can be done.
  • the proximal lateral arch portion 113 and the distal lateral arch portion 114 may be provided with only one of them.
  • the curved portion 13 curves downward from the front side of the upper surface 11 in the walking direction and then toward the rear in the walking direction (C1 in FIG. 2D). Further, the curved portion 13 may have a hook portion C2 that is further curved in the upward direction. For example, a fingertip is attached to the hook portion C2. The hook portion C2 may be omitted, and after the curvature C1 of the bending portion 13, the lower surface 12 may extend backward in the walking direction and further bend downward. Further, the curved portion 13 is bent by the pressing force between the user's hand and the floor.
  • the connecting portion 14 is connected to the shaft 20 of the cane 1.
  • the connecting portion 14 is provided on the lower surface 12 on the side facing the curved portion 13.
  • the connecting portion 14 is provided at the lower part of the position corresponding to the carpal portion of the user's hand when the user's finger engages with the curved portion 13 to grip the grip 10.
  • the connecting portion 14 determines that the orientation of the grip 10 corresponds to the walking direction. It may have a direction designation unit (not shown).
  • the direction designating portion can attach the grip 10 to the shaft 20 so that the curved portion 13 is fixed in a predetermined direction, for example, the curved portion 13 is on the walking direction side.
  • the direction-designating portion may be, for example, a recess or a notch (or a protrusion) directed in one direction, so as to fit into a protrusion (or a recess or a notch) formed in the shaft 20 in one direction. It may be configured. As a result, the grip 10 can be correctly oriented with respect to the walking direction.
  • the grip 10 (for example, the connecting portion 14) may have a mechanism (tilt adjusting portion) capable of adjusting the inclination of the shaft 20 with respect to the ground contact surface.
  • the inclination here does not mean the inclination of the cane 1 (shaft 20) that changes with time in the walking motion, but the inclination of the cane 1 in a predetermined ground contact state.
  • the predetermined ground contact state may be, for example, a state in which each ground contact surface of the foot portion 30 is in contact with the ground, a state in which the cane 1 is hard to fall down and is stable, or a state in which the cane 1 is stable, or a predetermined state other than these.
  • the mechanism may be such that the inclination of the shaft 20 can be changed when the foot portion 30 is in the same ground contact state.
  • a mechanism capable of adjusting the inclination of the shaft 20 by adjusting the insertion depth of the shaft 20 into the connecting portion 14 of the grip 10 may be provided.
  • the inclination of the insertion portion of the shaft 20 is changed so that the inclination of the connecting portion 14 with respect to the ground plane of the shaft 20 changes depending on the insertion depth of the shaft 20, and the first connecting portion 23 of the shaft 20 is connected. It may be inserted into the portion 14 and fixed at an appropriate depth.
  • the connecting portion 14 of the grip 10 may be inserted into the first connecting portion 23 of the shaft 20.
  • the mechanism (tilt adjusting unit) capable of adjusting the inclination of the shaft 20 with respect to the ground plane is not limited to this example, and may have an appropriate form.
  • the grip 10 is oriented in the left-right direction (rotation around the axis in the up-down direction) by having the shaft 20 having a rectangular cross section and the connecting portion 14 having a notch having a corresponding shape.
  • the shaft 20 having a rectangular cross section and the connecting portion 14 having a notch having a corresponding shape.
  • other appropriate configurations may be used.
  • a configuration in which the shaft 20 fitted into the connecting portion 14 and the connecting portion 14 are fastened with screws is illustrated, but the fixing method is not limited to this, and fixing means can be appropriately used.
  • the size of the grip 10 can be exemplified as follows, but is not limited to this.
  • the width of the grip 10 (for example, the width of the upper surface 11) is 96 mm
  • the length of the grip in the front-rear direction (from the front end of the curved portion 13 to the rear end of the upper surface 11) is 84 mm
  • Is 41 mm, from the upper end of the upper surface 11 to the lower end of the connecting portion 14 is 174 mm
  • the width of the connecting portion 14 is 20 mm.
  • the proximal lateral arch portion 113 maintains the arch shape of the hand even when a load is applied to the grip 10 on the palm surface, whereby the occurrence of carpal tunnel syndrome or the like can be prevented.
  • the grip 10 of the present embodiment has a proximal lateral arch portion 113 on the upper surface 11, and the user's finger so that the proximal lateral arch portion of the user's hand is located on the proximal lateral arch portion 113. Is configured to relate to the curved portion 13 and the hook portion C2.
  • the distal lateral arch portion 114 of the grip 10 of the present embodiment is, for example, a wrist joint dorsiflexion of 15 to 30 degrees, which is a functional limb position of the hand (a limb position that is relatively convenient for daily life), and flexion. From 5 to 15 degrees of flexion, the fingers can form an arch to match the curvature of the distal lateral arch when holding a slight flexion (a limb position that grips the ball).
  • the distal lateral arch portion 114 is provided at a position corresponding to the distal arch of the lateral arches (distal lateral arch and proximal lateral arch) of the user's hand.
  • the arch of the hand it is known which part of the two arches in the lateral direction (proximal side and distal side) is on the distal side, and the description thereof will be omitted.
  • the curved portion 13 can have the same shape as the curvature of the fingers when the fingers are lightly grasped. Further, when the hook portion C2 is provided, the hook portion C2 is further rounded. The fingertip can be fixed so as to be hooked on the hook portion C2. During normal use, hold the limb position as if you were lightly grasping your fingers, and attach the cane 1 without applying extra force. On the other hand, when the user is about to fall, the user's hand exerts a strong force on the hook portion C2, and the intrinsic muscles in the fingers work strongly to strengthen the gripping force on the cane 1. As a result, the cane 1 can be gripped with a light force, and walking can be continued without releasing the cane 1 even if the cane 1 is about to fall.
  • the shape in which the fingertip can be hooked on the hook portion C2 assists the cane 1 in swinging by rotating the grip 10 about the lateral axis when the cane 1 is swung out.
  • the cane 1 is gripped in a state where the cane 1 is tilted forward and the back of the hand is oriented toward the walking direction rather than the vertically upward direction. Simply lifting the cane 1 from this state has the effect of rotating the back of the hand and swinging the cane 1.
  • the curved portion 13 When a load is applied to the upper surface 11, the curved portion 13 lowers the upper surface 11 by about 1 mm to 10 mm with respect to the curved portion 13. Due to this bending, the structure of the proximal lateral arch portion 113 can be protected. Further, due to this bending, when the cane 1 is attached to the shaft 20 of the cane 1 and the cane 1 is used, the floor half force received by the user's hand can be dispersed. Further, the curved portion (second curved portion) between the lower surface 12 and the connecting portion 14 also has the lower surface 12 lowered by about 1 mm to 10 mm with the curved portion as an axis in the middle to late stages of stance. As a result, the floor reaction force against the dorsiflexion of the wrist joint can be further alleviated.
  • a connecting portion connected to the shaft of the cane, which is provided on the lower surface on the side facing the curved portion, may be further provided.
  • the upper surface may be an upper surface on which the user's palm is placed with the wrist on the back side in the walking direction.
  • FIG. 3 shows a configuration diagram of the shaft 20 according to the present embodiment.
  • 3 (a) is a perspective view
  • FIG. 3 (b) is a top view
  • FIG. 3 (c) is a front view
  • FIG. 3 (d) is a side view.
  • the shaft 20 is a shaft for the cane 1, and has a first curved portion 21 curved so as to be convex in the walking direction of the user and a second curved portion curved so as to be convex in the direction opposite to the walking direction. 22 and.
  • the first curved portion 21 and the second curved portion 22 are curved in opposite directions.
  • the first curved portion 21 is configured on the grip 10 side for holding the cane 1, for example, and the second curved portion 22 is configured on the foot portion 30 side on which the cane 1 touches the ground. That is, the first curved portion 21 is arranged above the second curved portion 22.
  • the curve of the first curved portion 21 is gentler than the curve of the second curved portion 22.
  • the curvature of the first curved portion 21 is smaller than the curvature of the second curved portion 22 (the radius of curvature of the first curved portion 21 is larger than the radius of curvature of the second curved portion 22).
  • the dimensions of the shaft 20 can be 20 mm in the horizontal direction and 720 mm in the longitudinal direction, but are not limited thereto.
  • the length in the longitudinal direction may be provided in a plurality of sizes such as S, M, and L depending on the height of the user.
  • a mechanism (length adjusting portion) capable of freely adjusting the length of the shaft 20 in the longitudinal direction may be provided.
  • the shaft 20 has a rectangular cross section as shown in FIG. 2, but may have a shape other than this.
  • the shaft 20 can be made of, for example, a material such as carbon fiber, resin, metal, or other material having a strength capable of supporting a part of the weight of the user.
  • the convex direction of the curve of the first curved portion 21 is not limited to the case where the convex direction of the curve of the first curved portion 21 is parallel to the walking direction. It may form a predetermined angle of less than 90 degrees with respect to the walking direction.
  • the convex direction of the curve of the first curved portion 21 may have at least a component in the walking direction.
  • the convex direction of the curve of the second curved portion 22 may have a component in the direction opposite to the walking direction at least in the convex direction opposite to the walking direction.
  • the above-mentioned predetermined angle can be, for example, within plus or minus 15 degrees, within plus or minus 30 degrees, or within plus or minus 45 degrees, but is not limited thereto.
  • the first curved portion 21 and the second curved portion 22 are bent by the pressing force between the grip 10 for holding the cane 1 and the ground contact surface.
  • the ratio of the degree to which the first curved portion 21 bends and the degree to which the second curved portion 22 bends when walking with the cane 1 changes. More specifically, the inclination of the cane 1 in the longitudinal direction and the contact surface of the cane 1 during walking changes from the time when the cane 1 touches the ground until it separates from the ground, and the grip 10 and the grip 10 change according to the change in the inclination.
  • the ratio of the degree of bending of the first curved portion 21 and the degree of bending of the second curved portion 22 due to the pressing force with the ground contact surface changes.
  • the shaft 20 has a first connecting portion 23 connected to a grip 10 whose walking direction is determined by how to hold the cane 1 by hand.
  • the first connecting portion 23 may have a direction designating portion (not shown) that determines the direction of the shaft 20 so that the curvature of the first curved portion 21 and the second curved portion 22 corresponds to the walking direction. That is, when the shaft 20 is attached to the grip 10 and the foot 30 by the direction designating portion, the shaft 20 can be attached to the grip 10 and the foot 30 so that the convex direction of the first curved portion 21 faces the walking direction.
  • the direction-designating portion may be, for example, a protrusion oriented in one direction, or may be configured to fit into a recess or notch formed in the grip 10 in one direction. As a result, the curvature of the shaft 20 can be correctly oriented with respect to the walking direction.
  • the shaft 20 has a second connecting portion 24 that connects to the foot portion 30 in which the walking direction is determined.
  • the second connecting portion 24 may have a direction designating portion (not shown) that determines the direction of the shaft 20 so that the curvature of the first curved portion 21 and the second curved portion 22 corresponds to the walking direction.
  • the direction-designating portion may be, for example, a protrusion directed in one direction, or may be configured to fit into a recess or notch formed in the foot 30 in one direction. As a result, the curvature of the shaft 20 can be correctly oriented with respect to the walking direction.
  • the direction designating portion of the first connecting portion 23 and the direction designating portion of the second connecting portion 24 may be provided in at least one of them.
  • the protrusion may be located on the grip 10 and / or the foot 30 side, and the first connection 23 and / or the second connection 24 may be provided with a recess or a notch.
  • the shaft 20 (for example, the second connecting portion 24 and the first connecting portion 23) may have a mechanism (tilt adjusting portion) capable of adjusting the inclination of the shaft 20 with respect to the ground plane.
  • the inclination here does not mean the inclination of the cane 1 (shaft 20) that changes with time in the walking motion, but the inclination of the cane 1 in a predetermined ground contact state.
  • the predetermined ground contact state may be, for example, a state in which each ground contact surface of the foot portion 30 is in contact with the ground, a state in which the cane 1 is hard to fall down and is stable, or a state in which the cane 1 is stable, or a predetermined state other than these.
  • the mechanism may be such that the inclination of the shaft 20 can be changed when the foot portion 30 is in the same ground contact state.
  • a mechanism capable of adjusting the inclination of the shaft 20 by adjusting the insertion depth of the shaft 20 into the foot portion 30 (or the grip 10) may be provided.
  • the slope may change.
  • the second connecting portion 24 of the shaft 20 may be inserted into the connecting portion 38 and may be fixed at an appropriate depth.
  • the connecting portion 38 of the foot portion 30 may be inserted into the second connecting portion 24 of the shaft 20.
  • the same configuration can be applied to the grip 10.
  • the mechanism (tilt adjusting unit) capable of adjusting the inclination of the shaft 20 with respect to the ground plane is not limited to this example, and may have an appropriate form.
  • the shaft 20 in the horizontal direction (rotation around the vertical axis), has a rectangular cross section, and the grip 10 or the foot 30 has a notch having a shape corresponding to the shaft 20.
  • the grip 10 or the foot 30 has a notch having a shape corresponding to the shaft 20.
  • the first curved portion 21 has an angle of 1 to 5 degrees at the apex (inflection point) of the first curved portion 21 when the heel touches the ground during walking. Due to this bending, the floor reaction force can be released in a direction different from the grip direction (for example, the extension direction of the first curved portion 21 from the lower part of the inflection point: the F2 direction in FIG. 3D).
  • the first curved portion 21 and the second curved portion 22 together cause subduction due to bending of several mm to 20 mm.
  • the floor reaction force is transmitted upward (here, in the grip direction), and the pressure on the hand, elbow, and shoulder increases, but in the shaft 20 of the present embodiment, the first curved portion 21 and the first curved portion 21 and the first 2
  • the subduction of the curved portion 22 reduces the pressure on the hand, elbow and shoulder as compared with a conventional general cane.
  • the lower limbs on the cane gripping side are less lifted due to the subduction of the shaft 20 in the middle stage of stance, and the grip 10 can be smoothly moved in the traveling direction.
  • the cane may be tilted in order to prevent the upper limbs from being lifted, and the posture during walking tends to collapse.
  • the bending repulsion of the first curved portion 21 and the second curved portion 22 occurs at the timing of kicking out the ground of the foot, and moves forward. Produces the driving force of.
  • the shaft 20 of the present embodiment is not limited to the above-described configuration, and can be configured as follows, for example.
  • the shaft 20 may include a telescopic portion that sinks at least in the vertical direction due to the pressing force between the grip 10 for holding the cane 1 and the ground contact surface when walking with the cane 1.
  • the telescopic portion corresponds to the first curved portion 21 and the second curved portion 22 described above.
  • the stretchable portion may have a plurality of stretchable portions having different degrees of stretch.
  • the telescopic portion generates at least a propulsive force in the walking direction by generating a restoring force when the cane tilts in the walking direction and separates from the ground contact surface.
  • the impact from the ground when the cane is used can be reduced.
  • the grip for holding the cane does not move in the vertical direction. Therefore, the user of the cane can easily walk even if the cane is grounded near the body. Therefore, it is possible to avoid the posture collapse and unnatural walking movement that may occur when the cane is grounded at a place away from the body and the cane is tilted to the left and right, and the secondary obstacle due to the use of the cane is avoided. obtain.
  • a restoring force from the sinking is generated, and at least a propulsive force in the walking direction can be generated.
  • FIG. 4 shows a configuration diagram of the foot portion 30 according to the present embodiment.
  • 4 (a) is a perspective view
  • FIG. 4 (b) is a top view
  • FIG. 4 (c) is a front view
  • FIG. 4 (d) is a side view.
  • the foot portion 30 may be referred to as a leg portion, a base portion, or a cane tip portion.
  • the foot portion 30 includes a plurality of ground contact portions 31, 32, 33 that are in contact with the ground and support the cane.
  • the ground is not limited to the outdoors, but may be an indoor floor, and is a walking road surface in an environment where the cane 1 is used for walking.
  • one grounding portion touches the ground.
  • the middle stage for example, the middle stage of stance
  • a plurality of two-dimensionally arranged ground contact portions touch the ground.
  • At the final stage of removing the cane from the ground for example, the final stage of stance
  • at least two ground contact portions arranged in the lateral direction perpendicular to the walking direction touch the ground.
  • the plurality of ground contact portions are arranged in the lateral direction perpendicular to the walking direction with the first ground contact portion 31 located on the rear side in the walking direction, and are arranged on the front side in the walking direction. It has a second grounding portion 32 and a third grounding portion 33 located. In this way, the first grounding portion 31 to the third grounding portion 33 are arranged two-dimensionally.
  • the first grounding portion 31 is grounded at the initial stage. In the middle stage, the first to third grounding portions 31 to 33 are grounded. At the final stage, the second grounding portion 32 and the third grounding portion 33 are grounded.
  • the first ground contact portion 31 is located on the rear side of the foot portion 30 in the walking direction, and when the foot portion 30 is swung forward while the grip 10 of the cane 1 is gripped by the user's hand, the cane reaches the maximum. Come to the bottom. Therefore, when the foot portion 30 of the cane is swung forward and the cane touches the ground, the first ground contact portion 31 touches the ground.
  • the ground contact surface by the first ground contact portion 31 is one place, and the cane 1 can be tilted 360 degrees in any direction with respect to the ground contact surface while the cane 1 is pierced by the ground, and the operability of the cane 1 can be achieved. Is excellent.
  • the cane 1 can be placed in parallel with respect to the next direction of travel in the transition to the middle stage of stance in the walking cycle.
  • the walking path is a curve
  • the cane (foot) can be rotated horizontally around the contact point as it bends, making the curve smooth. Easy to walk.
  • the fact that there is only one ground contact surface means that the ground contact surface may have a physical area or may be grounded at a small number of points.
  • the cane 1 when there is one ground contact surface, the cane 1 is likely to tilt in any direction when it is in contact with the ground, and when there are two ground contact surfaces, the cane 1 is in a specific direction (2) when it is in contact with the ground. It is difficult to tilt in the direction connecting the points), and it is easy to tilt in the direction perpendicular to the specific direction.
  • the three points where the ground planes are arranged in two dimensions mean which direction the cane 1 is in the grounded state. It is also difficult to tilt.
  • the second ground contact portion 32 and the third ground contact portion 33 are located side by side in the front side of the foot portion 30 in the walking direction.
  • the second grounding portion 32 and the third grounding portion 33 may be divided into two from the first grounding portion 31.
  • the foot portion 30 is grounded by the first to third ground contact portions 31 to 33.
  • the foot portion 30 has the second ground contact portion 32 and the third ground contact portion 33 in contact with the ground.
  • the late stance phase is the preparatory phase for the swing phase, and during the swing phase, the legs are swung forward.
  • the swing of the foot greatly affects the stride length of walking, and the larger the swing, the larger the stride length.
  • it is necessary to supplement the stability with a cane 1 or the like. With one-point support by a cane, the contact area with the ground is small, and it is weak as a compensation for stability.
  • support at three points (or support at four points or more) arranged in the two-dimensional direction with a cane leads to compensation of stability, but does not generate forward propulsion and leads to a large swing of the foot. Absent.
  • the support at the two locations arranged in the lateral direction has a larger contact surface between the cane 1 and the ground than the one-point support, and is positioned perpendicular to the traveling direction. Therefore, strong stability can be compensated.
  • the cane 1 can be tilted in the front-rear direction by, for example, 0 to 45 degrees while the second ground contact portion 32 and the third ground contact portion 33 are in contact with the ground. The inclination of 0 to 45 degrees in the front-back direction is generated in conjunction with walking, which also leads to the generation of propulsive force in walking.
  • the foot portion 30 may further have toe portions 34, 35 curved upward in the front direction on the front side of the second ground contact portion 32 and the third ground contact portion 33 in the walking direction.
  • the toe portions 34 and 35 may be configured to warp upward 5 degrees. The degree of warping is not limited to this, and may be an appropriate degree. Since the toes 34 and 35 are curved upward, the contact area with the ground can be secured and the stability can be maintained even when the above-mentioned inclination in the front-rear direction occurs.
  • the foot portion 30 may have arch portions 36, 37 that are convex upward in the vertical direction between the second ground contact portion 32, the third ground contact portion 33, and the first ground contact portion 31. Further, depending on the shapes of the second ground contact portion 32 and the third ground contact portion 33, an arch extending in the lateral direction and having a convex shape in the upper part in the vertical direction may be formed. In order to form this arch portion, each of the second ground contact portion 32 and the third ground contact portion 33 is configured such that one plate is twisted 90 degrees inward toward the tip end. These arches provide a function that facilitates attitude control in the front-back direction, the left-right direction, and the horizontal rotation direction. This further increases the stability of the cane 1.
  • the foot portion 30 further includes a connecting portion 38 that connects to the cane shaft 20.
  • the connecting portion 38 is located behind the foot portion 30 in the walking direction, in other words, above the first ground contact portion 31.
  • the connecting portion 38 is determined so that the direction of the foot portion 30 corresponds to the walking direction. It may have a direction designation unit (not shown). That is, when the foot portion 30 is attached to the shaft 20, the direction designation portion allows the toes portions 34 and 35 to be attached to the shaft 20 so as to face the walking direction.
  • the direction-designating portion may be, for example, a recess or a notch (or a protrusion) directed in one direction, so as to fit into a protrusion (or a recess or a notch) formed in the shaft 20 in one direction. It may be configured. As a result, the foot portion 30 can be correctly oriented with respect to the walking direction.
  • the foot portion 30 (for example, the connecting portion 38) may have a mechanism (tilt adjusting portion) capable of adjusting the inclination of the shaft 20 with respect to the ground contact surface.
  • the inclination here does not mean the inclination of the cane 1 (shaft 20) that changes with time in the walking motion, but the inclination of the cane 1 in a predetermined ground contact state.
  • the predetermined ground contact state may be, for example, a state in which each ground contact surface of the foot portion 30 is in contact with the ground, a state in which the cane 1 is hard to fall down and is stable, or a state in which the cane 1 is stable, or a predetermined state other than these.
  • the mechanism may be such that the inclination of the shaft 20 can be changed when the foot portion 30 is in the same ground contact state.
  • a mechanism capable of adjusting the inclination of the shaft 20 by adjusting the insertion depth of the shaft 20 into the connecting portion 38 of the foot portion 30 may be provided.
  • the inclination of the insertion portion of the shaft 20 may be changed so that the inclination of the connecting portion 38 with respect to the ground contact surface of the shaft 20 changes depending on the insertion depth of the shaft 20.
  • the second connecting portion 24 of the shaft 20 may be inserted into the connecting portion 38 and may be fixed at an appropriate depth.
  • the connecting portion 38 of the foot portion 30 may be inserted into the second connecting portion 24 of the shaft 20.
  • the mechanism (tilt adjusting unit) capable of adjusting the inclination of the shaft 20 with respect to the ground plane is not limited to this example, and may have an appropriate form.
  • the shaft 20 has a rectangular cross-section and the connecting portion 38 has a notch having a corresponding shape in the horizontal direction (rotation around the vertical axis) of the foot portion 30.
  • the connecting portion 38 has a notch having a corresponding shape in the horizontal direction (rotation around the vertical axis) of the foot portion 30.
  • other appropriate configurations may be used.
  • the size of the foot portion 30 can be exemplified as follows, but is not limited to this.
  • the foot portion 30 has a lateral width of 90 mm, a height (from the ground plane to the tip of the connecting portion 38) of 117 mm, a width of the connecting portion 38 of 20 mm, and a length in the front-rear direction (38 from the front end of the toe portion). The distance to the rear end is 151 mm).
  • the foot portion 30 can be formed mainly of carbon, but the bottom surface (or the ground contact portions 31 to 33) may be formed of, for example, a rubber material.
  • the bottom surface made of a rubber material may be adhered to the foot part made of carbon, or the foot part 30 may be formed by insert molding.
  • the present invention can be used for the manufacture and sale of canes and the manufacture and sale of components for canes.

Landscapes

  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Rehabilitation Tools (AREA)

Abstract

La présente invention concerne une canne et une poignée de canne qui absorbe la force de réaction du plancher et réduit l'impact sur le corps. Une poignée de canne (10) saisie par la main d'un utilisateur selon l'invention, comprend : une surface supérieure (11) sur laquelle la paume de l'utilisateur est placée avec le poignet sur le côté arrière dans le sens de la marche ; et une partie incurvée (13) qui s'incurve vers le bas, à partir du côté avant, dans le sens de la marche de la surface supérieure. La surface supérieure (11) comprend : une partie arquée latérale proximale (113), qui est disposée à une position correspondant à la rangée de canal carpien de la main de l'utilisateur, s'étend dans la direction latérale perpendiculaire au sens de la marche, et s'incurve vers le haut, lorsqu'une pluralité des doigts de l'utilisateur saisissent la poignée (10) par rapport à la partie incurvée (13) ; et/ou une partie arquée latérale distale (114), qui est disposée à une position correspondant à la partie distale de la main de l'utilisateur, s'étend latéralement perpendiculairement au sens de la marche, et s'incurve vers le haut, lorsqu'une pluralité des doigts de l'utilisateur saisissent la poignée (10) par rapport à la partie incurvée (13).
PCT/JP2020/032968 2019-08-30 2020-08-31 Canne et poignée de canne WO2021040052A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-158876 2019-08-30
JP2019158876A JP6746181B1 (ja) 2019-08-30 2019-08-30 杖及び杖用のグリップ

Publications (1)

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WO2021040052A1 true WO2021040052A1 (fr) 2021-03-04

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Country Link
JP (1) JP6746181B1 (fr)
WO (1) WO2021040052A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001178515A (ja) * 1999-12-24 2001-07-03 Kizaki:Kk 棒状部材の樹脂製握持用グリップ
JP2004154391A (ja) * 2002-11-07 2004-06-03 Kenichi Imamura 杖の柄
JP2008161393A (ja) * 2006-12-27 2008-07-17 Univ Of Fukui 歩行補助用杖及びその作製方法
US20090159106A1 (en) * 2007-12-20 2009-06-25 Lee Schulz Mobility devices with interchangeable features
JP2015009010A (ja) * 2013-07-01 2015-01-19 祐子 日野 杖のグリップ構造

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001178515A (ja) * 1999-12-24 2001-07-03 Kizaki:Kk 棒状部材の樹脂製握持用グリップ
JP2004154391A (ja) * 2002-11-07 2004-06-03 Kenichi Imamura 杖の柄
JP2008161393A (ja) * 2006-12-27 2008-07-17 Univ Of Fukui 歩行補助用杖及びその作製方法
US20090159106A1 (en) * 2007-12-20 2009-06-25 Lee Schulz Mobility devices with interchangeable features
JP2015009010A (ja) * 2013-07-01 2015-01-19 祐子 日野 杖のグリップ構造

Also Published As

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JP6746181B1 (ja) 2020-08-26
JP2021036961A (ja) 2021-03-11

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