JP6590177B1 - Cane aids and canes - Google Patents

Abstract

Provided are a walking stick assisting tool and a walking stick that are capable of supporting the walking stick and are excellent in stability and handleability when touching the ground. A cane 10 as an example of a cane to which the present invention is applied includes a cane body 20 and a cane assisting tool 30. Further, the cane body 20 is provided with a lock piece 230 at an upper position away from the tip thereof by a certain distance. The lock piece 230 is fitted to the grounding position groove portion 42b or the storage position groove portion 43b provided in the holder portion 40, and the auxiliary leg 51 in the open form in the cane assisting device 30 is fixed at the grounding position, or stored. It becomes a member which bears fixation in the storage position of the auxiliary leg. [Selection] Figure 12

Description

  The present invention relates to a cane assisting tool and a cane. More specifically, the present invention relates to a cane assisting tool and a cane that make the cane self-supporting and that are excellent in stability and handleability when touching the ground.

  A cane is used as a tool for supporting a user's body and assisting walking. A cane is generally formed in the shape of a long and narrow bar, and a handle is provided on the base end side to be gripped by the hand, and a grounding made of anti-slip rubber or the like is provided on the tip side in contact with the ground. Is provided.

  In addition, when a person who is difficult to walk stably walks, he / she has three or four grounding portions at the tip of the cane as a cane for supporting his weight and enabling stable walking. A leg cane is used.

  However, in the case of a multi-legged cane, if the grounding surface is inclined or uneven, the direction of gravity and the axis of the cane will deviate and become unstable at the time of grounding. It is difficult to use it except for. Moreover, there is a problem that the weight tends to be heavier than a structure with one grounding portion, and the burden on the user is increased when long-time use is considered.

  Under such circumstances, there is a structure of a cane in which an auxiliary leg is opened at the tip of the cane so that the cane can stand on its own, and the weight is not much different from a cane having a single grounding part. The cane described in is proposed.

  Here, the cane described in Patent Document 1 is provided with three or more rectangular slits in the axial direction below the hollow cane shaft, and includes a movable part and a fixed part in the slit. Further, auxiliary legs are attached to the movable part and the fixed part, and a coil spring is disposed between the movable part and the fixed part. Furthermore, it has a structure in which a wire is mounted between the movable portion and the locking portion at the top of the cane shaft.

  In the cane described in this Patent Document 1, when the cane is to be self-supported, the wire of the locking part is loosened, the movable part is moved downward by the tensile force of the coil spring, the auxiliary leg is separated from the slit, and the tip of the cane shaft It spreads and stops while descending to the lower end of the part, and the cane can be made independent. Further, by pulling up the wire of the locking portion, the auxiliary leg moves upward and is accommodated in each slit, and can be used as a normal cane.

Registered Utility Model No. 3054316

  However, the cane described in Patent Document 1 requires a process of providing a large slit on the outer peripheral surface of an existing cane, which takes time and labor. In addition, since the slit is formed, the strength of the cane is lowered, and there is a possibility that the stability when supporting the weight of the user by touching the ground or the like, or the durability of the cane may be caused.

  Also, depending on the length of the cane, it seems difficult to manufacture the opening of the auxiliary leg and the form in which the auxiliary leg is folded and stored neatly in the slit so as to have an appropriate size.

  Further, this cane is not structured to be fixed with the auxiliary leg open, and this state is maintained by the tensile force of the coil spring. Therefore, when the auxiliary leg is open and the tip of the cane is grounded to support the body, the auxiliary leg is forced upward from below, the movable part is pushed up, and the auxiliary leg closes, On the contrary, there is a risk of an unstable structure.

  In addition, it is conceivable to increase the elastic force of the coil spring in order to stabilize the state where the auxiliary leg is opened. However, when the auxiliary leg is stored, a strong force is required to pull up the wire of the locking portion, which makes it easy to use. It gets worse.

  The present invention was devised in view of the above points, and provides a cane assisting tool and a cane that enable a cane to stand on its own and that are excellent in stability and handling when touching the ground. It is the purpose.

In order to achieve the above object, the cane assisting device of the present invention is located at a predetermined distance from the tip of the cane in the longitudinal direction of the rod-like cane, and is provided on the outer peripheral surface of the cane. A through-hole through which the piece and the cane can be inserted is formed, a cylindrical leg unit main body movable between the lock piece and the tip of the cane, and one end attached to the leg unit main body; An end is configured to be rotatable in a direction approaching or separating from the cane with the one end side as a center, and the leg unit main body is in contact with the lock piece and pushed toward the tip of the cane, and Thus, the other end rotates in the direction approaching the cane and becomes a storage form, and the state where the leg unit main body is pushed from the lock piece toward the tip of the cane is released. The other end is separated from the cane A plurality of legs in the open form rotating in the direction that,
A cylindrical body that is attached to the leg unit main body and has a through-hole through which the cane and the lock piece can be inserted, and is configured to be movable in the longitudinal direction of the cane integrally with the leg unit. A fitting position groove portion that can be fitted to the lock piece and can fix the state where the leg unit main body abuts the lock piece and is pushed in the direction of the tip of the cane, and the lock piece. And a grounding position groove portion that can fix the state in which the leg unit main body is located on the distal end side of the cane and the leg portion supports the cane in a self-supporting manner is formed on the inner peripheral surface thereof. A holder portion.

  Here, when the through-hole through which the cane can be inserted is formed in the cylindrical leg unit main body, the leg unit main body can be disposed outside the cane by inserting the cane through the through-hole.

  The rod-shaped cane is positioned at a predetermined distance from the tip of the cane in the longitudinal direction, and a lock piece provided on the outer peripheral surface of the cane and a through hole into which the cane can be inserted are formed. The leg unit body between the distal end part in the longitudinal direction of the cane and the lock piece in a state where the leg unit body is arranged outside the cane by the cylindrical leg unit body movable between the tip part of the cane and the cane The position of can be changed. The predetermined distance here refers to a leg part that moves integrally with a leg unit main body, which will be described later, from the position where the leg part is in an open form and the other end of the leg part projects beyond the tip of the cane. It means the distance that the leg can move to the place where the leg is stored and the other end of the leg is located closer to the lock piece than the tip of the cane (also the distance that the leg unit body can move) .

  In addition, the leg is configured so that one end is attached to the leg unit main body and the other end is rotatable in a direction approaching or separating from the cane about the one end side, so that the leg is substantially parallel to the longitudinal direction of the cane. It is possible to make the orientation (storing form) or to incline it in a direction in which the longitudinal direction of the cane and the leg part form a certain angle (open form).

  Further, the leg unit main body is movable between the lock piece and the tip of the cane, and the plurality of leg parts are attached to the leg unit main body at one end and separated from the cane around the one end side. By being configured to be rotatable in the direction, the longitudinal direction of the cane and the leg can be inclined to form a certain angle, and a plurality of legs can be opened around the cane (open form). . In addition, with the plurality of legs open, the leg unit main body is positioned on the tip of the cane so that the other end of the leg contacts the ground or the like, and the cane is supported by the plurality of legs. It can be a structure. The structure in which the cane is supported by the plurality of legs not only enables the cane to stand on its own, but also supports the weight of the user of the cane at the time of grounding.

  In addition, the plurality of leg portions are in a storage form in which the leg unit main body comes into contact with the lock piece and is pushed in the direction of the distal end portion of the cane so that the other end rotates in a direction close to the cane. Thus, the leg unit main body and the lock piece can be brought into contact with each other to close the leg portion. That is, for example, with one hand holding the cane, the other hand moves the leg unit main body along the longitudinal direction of the cane toward the lock piece, and the lock piece and the leg unit main body are in contact with each other. Then, push the leg unit body in the direction of the lock piece (it can also be said to push the cane in the direction of the leg unit body with the other hand while holding the leg unit body in one hand). Can be closed. That is, the leg portion can be easily closed and stored only by moving the leg unit main body along the cane. In this case, in the longitudinal direction of the cane, the other end of the leg is moved to a position positioned on the lock piece side from the tip of the cane, so that only the tip of the cane is grounded without opening the leg. Thus, when walking, the leg portion has a structure that does not obstruct walking.

  In addition, by releasing the state where the leg unit main body is pushed from the lock piece toward the tip of the cane by releasing the plurality of legs, the other end rotates in a direction away from the cane and becomes an open form. In the longitudinal direction of the cane, the leg portion can be opened only by moving the leg unit main body in the direction away from the lock piece. That is, the leg can be easily opened only by moving the leg unit main body along the cane.

  In addition, the holder portion is a cylindrical body that is attached to the leg unit body and has a through-hole through which the cane and the lock piece can be inserted. In addition, the holder part can be arranged together with the leg unit main body.

  Further, the holder portion is a cylindrical body that is attached to the leg unit main body and has a through-hole through which the cane and the lock piece can be inserted, and is configured to be movable in the longitudinal direction of the cane integrally with the leg unit. By changing the position of the holder part integrally with the leg unit body that moves between the distal end part and the lock piece in the longitudinal direction of the cane in a state where the leg unit body and the holder part are arranged outside the cane Can do. Further, the user of the cane can change the positions of the leg unit main body and the holder part in the longitudinal direction of the cane by holding the holder part by hand.

  In addition, a storage position groove portion is formed on the inner peripheral surface of the holder portion so as to fit the lock piece and fix the state where the leg unit main body is in contact with the lock piece and pushed toward the tip of the cane. Thus, the lock piece and the storage position groove can be fitted, and the position where the leg unit main body abuts the lock piece in the longitudinal direction of the cane and is pushed toward the tip of the cane can be maintained. That is, the other ends of the plurality of leg portions rotate in the direction approaching the cane to be in the storage form, and the closed state of the plurality of leg portions can be fixed.

  In addition, a grounding position where the lock unit can be fixed to the inner peripheral surface of the holder part so that the leg unit main body is located on the distal end side of the cane and the leg part supports the cane independently. By forming the groove portion, the lock piece and the ground contact position groove portion can be fitted to maintain the position where the leg unit main body in the longitudinal direction of the cane is located on the distal end side of the cane. Further, at the same position, the plurality of legs are in an open state. That is, the other ends of the plurality of leg portions project beyond the tip portion of the cane to be in an open form, and can be fixed in that state. At this time, for example, the cane can be made to stand independently with the cane facing in the vertical direction and in a straight direction with respect to the ground or the like, with the other ends of the plurality of legs contacting the ground. Moreover, the weight of the user of the cane can be supported in a state where the plurality of leg portions are in the open form.

  In addition, by rotating the holder part around the axis of the cane so that the lock piece and the storage position groove part or the grounding position groove part can be fitted, only a simple movement for rotating the holder part is possible. Thus, the position of the leg unit main body in the longitudinal direction of the cane can be fixed. That is, for example, the leg unit main body is moved with respect to the longitudinal direction of the cane, and the holder unit is rotated when the leg unit is located at the storage position of the leg portion or the ground contact position of the leg portion. It can be fixed in the state of storing or opening the legs.

  The lock piece has a substantially ring-shaped lock piece main body, a slit is formed in a part of the lock piece main body, and a cane can be attached to the slit in a state where the cane is arranged inside the lock piece main body. When the lock piece main body is fixed to the outer peripheral surface of the cane, the lock piece can be externally provided on the outer peripheral surface of the cane.

  The lock piece main body is formed with a first detent hole penetrating between the inner peripheral surface and the outer peripheral surface, and the cane is formed at a position facing the first detent hole on the outer peripheral surface. A second stop hole formed in the axial direction, inserted through the first stop hole and the second stop hole, and a stop pin for restricting the rotational movement of the lock piece body around the cane; In this case, the lock piece main body and the wand can be fixed via the locking pin, and the movement of the lock piece main body along the outer peripheral surface of the wand can be suppressed. As a result, a phenomenon in which only the lock piece is idled with respect to the outer peripheral surface of the cane is suppressed, and the lock piece integrated with the cane is easily fitted into the storage position groove portion or the grounding position groove portion. That is, it becomes possible to fix the leg portion in the state of storage or open.

  When the holder portion is provided on the inner peripheral surface thereof along the longitudinal direction of the holder portion and communicates with the storage position groove portion and the grounding position groove portion, and a guide hole configured to be able to move the lock piece is formed. The movement of moving the leg unit main body and the holder portion in the longitudinal direction of the cane is guided by the guide hole, and the lock piece is easily fitted in the storage position groove portion or the grounding position groove portion. That is, the leg can be more easily fixed in the state of storing or opening the leg.

  The lock piece body has a recess formed in a part of its outer peripheral surface in a cross-sectional view seen from a direction substantially perpendicular to the axial direction of the cane, and is attached to the holder portion along the longitudinal direction of the guide hole. When the convex part which fits into the concave part and regulates the movement of the cane and the lock piece around the axis of the cane with respect to the holder part has a guide rail formed along its longitudinal direction, Through the fitting of the concave part of the lock piece body and the convex part of the guide rail, the rotation direction of the lock piece around the cane with respect to the inner peripheral surface of the holder part in the path through which the lock piece passes through the guide hole It becomes easier to maintain the orientation. That is, in the middle of the guide hole, the lock piece can be moved to the storage position groove portion or the grounding position groove portion while maintaining the orientation of the lock piece. As a result, for example, the lock piece rotates during the movement of the guide hole of the holder part, and it is possible to suppress problems such as being unable to fit in an appropriate position of the storage position groove part or the grounding position groove part.

  In addition, when rotation of the leg portion on the one end side of the leg portion facing the outer peripheral surface of the cane is in contact with the outer peripheral surface of the cane and the other end is restricted from moving away from the cane, the leg portion and the cane The formed angle can be stopped at a predetermined angle. That is, it is possible to define the degree of opening of the plurality of legs with respect to the cane in the open form of the legs. In addition, when the leg is in an open form and the cane is grounded on the ground or the like and the weight of the user is supported by the other end of the leg, the force applied to the leg is in contact with the leg on the outer peripheral surface of the cane. It becomes a structure to catch. As a result, the stability when touching the ground or the like can be improved, and the durability of the cane assisting device can be enhanced.

  The leg unit main body is provided on the opposite side of the first leg unit member configured to be in contact with the lock piece and on the side of the first leg unit member in contact with the lock piece. A second leg unit member connected to the first leg unit member via an elastic body that urges the first leg unit member arranged between the members toward the lock piece. The first leg unit member is integrated with the second leg unit member via an elastic body. Further, when the leg unit main body is moved in the longitudinal direction of the cane and the lock piece and the first leg unit member are brought into contact with each other and further pushed toward the second leg unit member, the urging force of the elastic body is resisted. Thus, the distance between the second leg unit member and the first leg unit member can be reduced. Further, by releasing the state where the lock piece and the first leg unit member are in contact with each other, the distance between the second leg unit member and the first leg unit member is made constant by the biasing force of the elastic body. Can be returned to the distance. That is, it is possible to reciprocate the first leg unit member closer to or away from the second leg unit member via the lock piece and the elastic body.

  In addition, when one end includes a rod attached to the first leg unit member via the first pin, the movement of the first leg unit and the movement of the rod can be linked. That is, the rod is interlocked with the above-described reciprocating motion such that the first leg unit member is moved closer to or away from the second leg unit member via the lock piece and the elastic body.

  One end is attached to the first leg unit member via the first pin, and the other end is provided with a rod that pivotally supports the leg portion via the second pin. When the second leg unit member is pivotally supported by the second leg unit member via the pin, the first leg unit member, the leg portion and the second leg unit member are connected by a rod. .

  Also, a slider crank mechanism is constructed in which the first leg unit member is a slider, the third pin is the original coaxial, and the region between the second pin and the third pin of the leg is a crank, and the first leg unit As the member comes into contact with the lock piece and the first leg unit member is pushed in the direction of the tip of the cane against the urging force of the elastic body, on the circumference around the third pin. When the second pin moves and the third pin rotates and the other end of the leg rotates in the direction approaching the cane, the leg is released by the reciprocation of the first leg unit member. The form and the storage form can be switched. That is, the leg unit main body is moved in the longitudinal direction of the cane, the lock piece and the first leg unit member are brought into contact with each other, and further pushed toward the second leg unit member, or the contacted state is released. Thus, the opening and closing of the leg can be switched. Here, the slider crank mechanism is a mechanism that changes a reciprocating linear motion into a rotational motion.

  In this slider crank mechanism, the slider in which the first leg unit member reciprocates, the region between the second pin and the third pin of the leg portion is the crank, and the third pin is the original coaxial. Further, the reciprocation of the first leg unit member is transmitted to the third pin via the rod, the first pin, the second pin, and the leg (crank), and the third pin is set as the center of rotation. It turns into a rotational movement. The rotational movement around the third pin changes the position of the second pin on the circumference of the rotational movement. At this time, since the third pin itself also rotates, the leg portion pivotally supported by the third pin rotates.

  In order to achieve the above object, the cane of the present invention is formed in a rod shape and has a handle provided at the proximal end, and a predetermined length from the distal end of the cane body in the longitudinal direction of the cane body. A lock piece provided on the outer peripheral surface of the cane body and a through-hole through which the cane body can be inserted are formed between the lock piece and the tip of the cane body. A movable cylindrical leg unit main body, one end is attached to the leg unit main body, and the other end is configured to be rotatable in a direction approaching or separating from the cane main body around the one end side, and the leg When the unit main body comes into contact with the lock piece and is pushed in the direction of the distal end portion of the cane body, the other end rotates in a direction close to the cane main body and becomes a storage form, and the leg The unit body is the lock piece A plurality of leg portions that are opened in a direction in which the other end rotates away from the cane body by releasing the state of being pushed in the direction of the tip portion of the cane body, and the leg unit body A cylindrical body that is attached and has a through-hole through which the cane body and the lock piece can be inserted, is configured to be movable in the longitudinal direction of the cane body integrally with the same leg unit, and the lock A fitting position, and a fitting position groove that can fix the state where the leg unit main body is in contact with the lock piece and pressed toward the tip of the cane body; A grounding position groove portion is formed on an inner peripheral surface of the leg unit main body, the grounding position groove portion being located on a distal end portion side of the cane main body and capable of fixing a state where the leg portion supports the cane main body in a self-supporting manner. A walking stick assisting tool having a holder part .

  Here, since the cane body is formed in a rod shape and the handle is provided at the base end, the user can use the cane by grasping the handle, which is easy to handle. Further, the weight of the user can be supported while the tip of the cane is grounded on the ground or the like.

  The leg unit main body is movable between the lock piece and the tip of the cane body, and the plurality of leg parts are attached to the leg unit main body at one end and the other end is centered on the one end side from the cane main body. By being configured to be rotatable in the direction of separation, the longitudinal direction of the cane body and the leg part are inclined to form a certain angle, and a plurality of leg parts are opened around the cane body (open form); can do. In addition, with the plurality of legs open, the leg unit main body is positioned on the distal end side of the cane body, so that the other end of the leg is grounded to the ground or the like, and the cane body is attached to the plurality of legs. It can be set as the structure to support. The structure in which the cane body is supported by the plurality of legs not only enables the cane to stand on its own, but also supports the weight of the user of the cane at the time of grounding.

  Further, the plurality of leg portions are in a state in which the leg unit main body comes into contact with the lock piece and is pushed in the direction of the distal end portion of the cane body so that the other end rotates in a direction close to the cane main body and is stored. As a result, the leg unit main body and the lock piece can be brought into contact with each other to close the leg. That is, for example, while holding the cane with one hand, the leg unit body is moved in the direction of the lock piece along the longitudinal direction of the cane body with the other hand, and the lock piece and the leg unit body are in contact with each other. From the state, the leg unit body is pushed further in the direction of the lock piece (it can be said that the hand unit is pushed in the direction of the leg unit body with the other hand while holding the leg unit body with one hand). The part can be closed. That is, the leg portion can be easily closed and stored only by moving the leg unit body along the cane body. Also, in this case, in the longitudinal direction of the cane body, the other end of the leg part has moved to a position located on the lock piece side from the tip part of the cane body. When walking with the grounding, the leg portion is structured not to obstruct walking.

  Further, the plurality of legs are released by releasing the state in which the leg unit main body is pushed from the lock piece toward the tip of the cane body, so that the other end rotates in a direction away from the cane body. Thus, in the longitudinal direction of the cane body, the leg portion can be opened only by the operation of moving the leg unit body away from the lock piece. That is, the leg portion can be easily opened only by moving the leg unit body along the cane body.

  Also, it is possible to fix a state in which the leg unit body is located on the distal end side of the cane body and the leg part supports the cane body in a self-supporting manner by fitting with the lock piece on the inner peripheral surface of the holder part. By forming the grounding position groove portion, the lock piece and the grounding position groove portion can be fitted together to maintain the position where the leg unit main body in the longitudinal direction of the cane body is located on the distal end side of the cane body. Further, at the same position, the plurality of legs are in an open state. That is, the other ends of the plurality of leg portions project beyond the tip portion of the cane body to be in an open form and can be fixed in that state. At this time, for example, the cane can be made to stand independently with the cane facing in the vertical direction and in a straight direction with respect to the ground or the like, with the other ends of the plurality of legs contacting the ground. Moreover, the weight of the user of the cane can be supported in a state where the plurality of leg portions are in the open form.

The cane assisting device according to the present invention enables the cane to stand on its own, and is excellent in stability and handling when contacting the ground or the like.
In addition, the cane according to the present invention can be self-supporting and has excellent stability and handleability when being grounded to the ground or the like.

(A) is the whole schematic diagram which shows the form which accommodated the auxiliary leg in an example of the cane concerning the present invention, and (b) makes the cane stand free by opening the auxiliary leg in the example of the cane concerning the present invention. FIG. It is the exploded view which showed the outline of the member which comprises a holder part and a leg unit. It is the exploded view which showed the outline of the member which comprises a leg unit. It is the schematic which shows the structure of a slider. It is the schematic which shows the structure of a leg unit base. It is the schematic which shows the structure of a rod. It is the schematic which shows the structure of an auxiliary leg. It is a schematic sectional drawing which shows opening and closing of an auxiliary leg, and a motion of a slider crank mechanism. It is a schematic sectional drawing explaining the fitting of the grounding position groove part in a holder part, a storage position groove part, and a guide groove, and a lock piece. It is the schematic which shows the structure of 2nd Embodiment. It is the schematic which shows the structure of 3rd Embodiment. It is the exploded view which showed the outline of the member which comprises the holder part and leg unit in 4th Embodiment. It is an exploded view which shows the relationship between a C-shaped lock piece and a guide rail, and its peripheral member. It is the schematic which shows the internal structure of a holder part. It is the schematic which shows the structure of a lock piece. It is the schematic which shows the state which fixed the lock piece to the outer peripheral surface of the cane. It is the schematic which shows the structure of a guide rail. It is the schematic which shows the fitting state of a lock piece and a guide rail. It is a schematic sectional drawing explaining the fitting of the grounding position groove part in a holder part, a storage position groove part, and a guide groove, and a lock piece.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as “first embodiment”) will be described with reference to the drawings.

(First embodiment)
A cane 1 that is an example of a cane to which the present invention is applied includes a cane body 2 and a cane assisting tool 3 (see FIG. 1). The cane aid 3 is an example of a cane aid to which the present invention is applied. FIG. 1A is a view showing a structure in which the auxiliary leg 51 of the cane assisting tool 3 is closed to be in the stowed form and fixed at the stowed position above the distal end in the longitudinal direction of the cane body 2. FIG. 1B is a view showing a structure in which the auxiliary leg 51 of the cane assisting tool 3 is opened to be in an open form and fixed at a position where the auxiliary leg 51 contacts the ground on the distal end side of the cane.

  The cane body 2 is formed in an elongated rod shape. The cane body 2 includes a grip 21 that is a portion gripped by the user and a grounding portion 22 that is in contact with the ground (see FIG. 1). The grip 21 has a curved shape that is easy to grip with a human hand, and is made of resin.

The grounding portion 22 is formed of a cover-like rubber body that can be attached to and detached from the cane body 2 (see FIG. 1). That is, the grounding portion 22 is attached so as to cover the outside of the tip of the cane body 2.
In the following description, with reference to FIGS. 1 and 2, the direction of the ground contact portion 22 viewed from the grip 21 is referred to as “down” or “downward”, and the direction of the grip 21 viewed from the ground contact portion 22 is “ It shall be called “above” or “above”. Further, in the longitudinal direction of the cane body 2, an end portion where the grip 21 is formed is referred to as a “base end”, and an end portion where the grounding portion 22 is formed is referred to as a “tip”.

  The cane body 2 is provided with a lock piece 23 at an upper position away from the tip of the cane body 2 (see FIG. 2). The lock piece 23 is inserted into the cane body 2 through an attachment hole formed so as to penetrate the cane body 2 in the diameter direction, and is fixed at the same position.

  The lock piece 23 is fitted with a grounding position groove portion 42 or a storage position groove portion 43 (see FIGS. 9A and 9B) provided in the holder portion 4 to be described later, and is released in the cane assisting tool 3. It becomes the member which bears fixation in the grounding position of the auxiliary leg 51 of a form, or fixation in the storage position of the auxiliary leg of a storage form.

  Here, the cane body 2 is not necessarily a general bar-shaped cane, and the cane assisting tool 3 can be used by being attached to other cane-like tools. For example, it is possible to attach the cane assisting tool 3 to the tip side of a crutch or the tip side of a monopod that supports the camera.

  The cane assisting tool 3 is connected to a cylindrical holder part 4 (see FIGS. 1 and 2) in which a through-hole 4a (see FIG. 2) is formed, and to the lower end of the holder part 4, and the length of the cane body 2 is long. A leg unit 5 (see FIGS. 1 to 3) configured to be movable up and down integrally with the holder portion 4 along the direction is provided. Here, the leg unit 5 is a member corresponding to the leg unit main body in the claims of the present application.

  The holder portion 4 is configured such that the cane body 2 is inserted through the internal through-hole 4 a and is movable up and down along the longitudinal direction of the cane body 2. In addition, a guide groove 41 (see FIG. 9C) in which the lock piece 23 can move is formed in a part of the inner peripheral surface of the holder portion 4 in a direction substantially parallel to the vertical direction. In addition, the upper and lower ends of the guide groove 41 communicate with the storage position groove portion 42 and the ground position groove portion 43 (see FIG. 9).

  In addition, the lock piece 23 is guided to move in the vertical direction by the guide groove 41, while the rotation movement around the cane body 2 is restricted. Further, when the lock piece 23 is fitted to the storage position groove portion 42 or the grounding position groove portion 43, the lock piece 23 rotates at the same position in the vertical direction around the cane body 2 (rotation in a direction in which the guide groove portion 41 is movable). ) Is possible, and movement in the vertical direction is restricted.

  As described above, the lock piece 23 is fitted into the storage position groove portion 42 or the grounding position groove portion 43 and the movement in the vertical direction is restricted, so that the cane assisting tool 3 is fixed. The detailed movement of this part will be described later.

  A ring-shaped lid 44 is fixed to the upper portion of the holder portion 4 via a screw 45. By fixing the lid 44 to the upper part of the holder part 4, the movement of the lock piece 23 to the upper part with respect to the holder part 4 from the state in which the lock piece 23 and the grounding position groove part 43 are fitted is restricted.

  That is, in the holder portion 4, the grounding position groove portion 42 is provided at a position below the fixed lid 44, and the lock piece 23 cannot move above the grounding position groove portion 42. The details of the structure related to fixing using the lock piece 23 inside the holder portion 4 will be described later.

  The leg unit 5 has four auxiliary legs 51 that can be opened and closed (see FIGS. 1 to 3). The auxiliary leg 51 is a member that allows the cane 1 to stand on its own, with the end portion 520 (see FIGS. 1 and 2) on the distal end side opening outward from the cane body 2. Further, the auxiliary leg 51 is also a member that supports the weight or the like of the user on the cane 1 with the end 520 on the distal end side being in contact with the ground when being in the open form and positioned at the ground contact position.

  Here, the auxiliary leg 51 does not necessarily need to be strong enough to support the weight of the user on the cane 1, and only has a function of forming the auxiliary leg 51 with a light resin member or the like so that the cane can stand on its own. A structure may be provided.

The detailed structure of the leg unit 5 will be described with reference to FIGS.
The leg unit 5 includes a slider 52, two connecting springs 53, four rods 54, a leg unit base 55, and four auxiliary legs 51 (see FIG. 2). Here, the slider 52 is a member corresponding to the first unit member in the claims of the present application. The connecting spring 53 is a member corresponding to the elastic body in the claims of the present application. The leg unit base 55 is a member corresponding to the second leg unit member in the claims of the present application.

  The leg unit base 55 is a part that is directly or indirectly connected to each member constituting the leg unit 5 and serves as a base of the leg unit 5 (see FIGS. 2, 3, and 5). A through hole 55a (see FIG. 5) is formed in the leg unit base 55, and the cane body 2 can be inserted therethrough. Further, the upper part of the leg unit base 55 is connected to the lower part of the holder part 4.

  Due to the structure of the leg unit base 55 and the holder 4 described above, the slider 52, the connecting spring 53, and a part of the rod 54 are arranged inside the holder part 4 and the leg unit base 55. Moreover, when the holder part 4 is moved up and down along the longitudinal direction of the cane body 2, the leg unit base 55 is configured to be movable integrally with the holder part 4.

  Further, the leg unit base portion 55 is provided with a substantially flat region on the inner side thereof, and two spring mounting holes 55b (see FIG. 3) are formed in the same portion. The lower end of the connecting spring 53 is fixed to the spring mounting hole 55b.

  The upper end of the connection spring 53 is fixed to a spring mounting hole 52b (see FIGS. 2, 3 and 4B) formed in the slider 52, and the leg unit base 55 and the slider are connected via the connection spring 53. 52 is connected. The connecting spring 53 urges the slider 52 upward from below, and keeps the distance between the slider 52 and the leg unit base 55 constant in the vertical direction when no external force is applied to the connecting spring 53. It becomes.

  Further, the leg unit base 55 is provided with auxiliary leg mounting grooves 55c in which a part of the leg unit base 55 is vertically cut out at four locations in the circumferential direction (see FIG. 5). The auxiliary leg mounting groove 55c is formed in communication with the through hole 55a.

  A part of the upper part of the auxiliary leg 51 and a part of the lower part of the rod 54 are arranged in the auxiliary leg mounting groove 55c. The auxiliary leg 51 is rotatably attached to the leg unit base 55 via an auxiliary leg rotation pin 63 (see FIG. 3). The auxiliary leg rotation pin 63 here corresponds to the third pin (original coaxial) in the claims of the present application.

  The auxiliary leg 51 has a pin hole 51a (see FIG. 7) formed in the upper part. The auxiliary leg rotation pin 63 is located where the pin hole 51a and a pin hole 55d (see FIG. 5) provided in the inner peripheral wall constituting the auxiliary leg mounting groove 55c of the leg unit base 55 are located on the same straight line. Is inserted. With this structure, the auxiliary leg 51 is rotatable with respect to the leg unit base 55.

  Further, the outer peripheral diameter of the auxiliary leg rotation pin 63 is slightly smaller than the inner peripheral diameter of the pin hole 51 a of the auxiliary leg 51. Further, the inner peripheral diameter of the pin hole 55 d of the leg unit base 55 is formed to be larger than the outer peripheral diameter of the auxiliary leg rotating pin 63. With this structure, even if the auxiliary leg rotation pin 63 and the pin hole 55d are in contact with each other, the auxiliary leg rotation pin 63 is smoothly rotated inside the pin hole 55d. Further, the auxiliary leg rotation pin 63 does not slip with respect to the pin hole 51a, and the auxiliary leg rotation pin 63 and the auxiliary leg 51 rotate integrally.

  Further, the auxiliary leg 51 rotates about the auxiliary leg rotation pin 63 as a central axis, so that the end 520 on the distal end side approaches or moves away from the cane body 2. By this movement, the entire auxiliary leg 51 is in a direction substantially parallel to the cane body 2 or a direction opened outward so as to form a predetermined angle with the cane body 2.

  That is, the state in which the auxiliary leg 51 is oriented substantially parallel to the cane body 2 is the storage form of the auxiliary leg 51, and the auxiliary leg 51 is opened outward so as to form a predetermined angle with the cane body 2. The state where the auxiliary leg 51 is opened is shown in FIG. The storage form and the release form of the auxiliary leg 51 are configured to be switchable by a slider crank mechanism described later.

  In addition, the angle formed between the auxiliary leg 51 and the cane body 2 in the open configuration is defined by the upper side surface 510 of the auxiliary leg 51 contacting the outer peripheral surface of the cane body 2 (see FIGS. 7 and 7). (See FIG. 8). With this structure, when the end 520 on the distal end side of the auxiliary leg 51 is grounded to the ground and the weight of the user is applied to the auxiliary leg 51, the auxiliary leg 51 is supported by the cane body 2 at a position in contact with the cane body 2. The Thereby, for example, even if the auxiliary leg 51 is made of a light resin material to reduce the weight, it is difficult to break when a load is applied, and durability can be improved.

  Here, it is not always necessary that the upper side surface 510 of the auxiliary leg 51 is in contact with the outer peripheral surface of the cane body 2. However, as described above, the load applied to the auxiliary leg 51 can be supported by the cane body 2, and the strength and durability of the cane as a whole can be increased, and a light resin material or the like is adopted for the auxiliary leg 51. The above-described structure is preferably employed from the viewpoint that the weight of the cane can be reduced.

  The auxiliary leg 51 is provided with a pin hole 51b (see FIG. 7) in the vicinity of the pin hole 51a. A hinge pin 62 (see FIG. 3) is inserted where the pin hole 51b and a pin hole 54a (see FIG. 6) provided in the lower portion of the rod 54 are located on the same straight line. That is, the auxiliary leg 51 and the rod 54 are connected via the hinge pin 62. The hinge pin 62 here corresponds to the second pin in the claims of the present application. Moreover, the area | region between the pin hole 51a and the pin hole 51b in the auxiliary leg 51 corresponds to the crank in a claim of this application. In FIG. 7B, a region corresponding to the crank is surrounded by a dotted line indicated by reference numeral 530 (crank portion 530).

  The outer peripheral diameter of the hinge pin 62 is slightly smaller than the inner peripheral diameter of the pin hole 54a of the rod 54. Further, the inner peripheral diameter of the pin hole 51 b of the auxiliary leg 51 is formed larger than the outer peripheral diameter of the hinge pin 62. With this structure, even if the hinge pin 62 and the pin hole 51b are in contact with each other, the hinge pin 62 rotates smoothly inside the pin hole 51b. Further, the hinge pin 62 does not slide with respect to the pin hole 54a, and the hinge pin 62 and the rod 54 are configured to rotate integrally.

  The slider 52 is formed with a through hole 52a (see FIG. 4), and the cane body 2 can be inserted therethrough. Further, as described above, the slider 52 is provided with a substantially flat region on the inner side, the two spring mounting holes 52b described above are formed in the same portion, and the upper end of the connecting spring 53 is fixed.

  Further, the slider 52 is provided with rod mounting grooves 52c in which a part of the slider 52 is notched in the vertical direction at four locations in the circumferential direction (see FIG. 4). The rod attachment groove 52c is formed in communication with the through hole 52a.

  A part of the upper portion of the rod 54 is disposed in the rod mounting groove 52c. The upper part of the rod 54 is fixed to the slider 52 via a hinge pin 61 (see FIG. 3). The hinge pin 61 referred to here corresponds to the first pin in the claims of the present application. Further, the rod 54 has a shape having a crank shape 54c (see FIG. 6) in part.

  The slider 52 has a pin hole 52d and a pin hole 52e formed on the wall surface constituting the rod mounting groove 52c. A hinge pin 61 is inserted where the opposing pin hole 52d and pin hole 52e and the pin hole 54b of the rod 54 are located on the same straight line. With this structure, the upper portion of the rod 54 is fixed to the slider 52 via the hinge pin 61, and the rod 54 moves integrally with the movement of the slider 52 in the vertical direction.

  When the connecting structure of the members constituting the leg unit 5 described above is summarized, the slider 52 and the leg unit base 55 are connected via a connecting spring 53. Further, the slider 52 and the auxiliary leg 51 are connected via the rod 54. Furthermore, the slider 52 and the leg unit base 55 are indirectly connected via the rod 54 and the auxiliary leg 51.

  About the cane 1 demonstrated above, the detail of a movement at the time of using the cane auxiliary tool 3 is demonstrated. In more detail, the movement of the cane auxiliary tool 3 in the vertical direction, the movement of opening and closing the auxiliary leg 51 in conjunction with the movement, and the movement of fixing the auxiliary leg 51 will be described.

[Auxiliary leg opening and fixing at the grounding position]
FIG. 8A shows a cross section in a state in which the auxiliary leg 51 is in an open form, the end 520 on the distal end side of the auxiliary leg 51 is in contact with the ground, and the cane body 2 is self-supporting. Further, in this state, the movement of the holder unit 4 and the leg unit 5 in the vertical direction is in a state in which the lock piece 23 and the grounding position groove 42 are regulated and fixed by fitting.

  The second state from the top of FIG. 9C shows the state in which the lock piece 23 and the grounding position groove portion 42 are fitted (cross-sectional view in the direction of arrow CC in FIG. 9B). The lock piece 23 and the grounding position groove 42 are located in the same direction. Further, the guide groove 41 is formed in a direction in which the grounding position groove portion 42 is slightly inclined.

  With respect to the rotation of the lock piece 23 with the cane body 2 as the central axis, the lock piece 23 is prevented from rotating in the counterclockwise direction as viewed in FIG. On the other hand, the lock piece 23 can rotate in the clockwise direction from the state shown in the figure so as to match the shape of the guide groove 41 from the grounding position groove portion 42.

  The lock piece 23 can be rotated by rotating the holder portion 4 relative to the cane body 2. For example, when the user holds the cane body 2 with one hand and rotates the holder portion 4 with the other hand, the lock piece 23 is fitted in the guide groove 41 and the direction in which the lock piece 23 is fitted. The direction to match can be switched. At this time, the lock piece 23 needs to be positioned in the upper part of the holder part 4 and at the same height position as the grounding position groove part 42 in the vertical direction.

  9C is a schematic cross-sectional view of the grounding position groove portion 42. As shown in FIG. 9C, in the region adjacent to the guide groove 41 of the grounding position groove portion 42, there is a protrusion. A portion 42a is provided. The protrusion 42 a rotates the lock piece 23 in the horizontal direction and contacts the lock piece 23 when switching between the direction in which the lock piece 23 is fitted to the ground position groove portion 42 and the direction in which the lock piece 23 is fitted to the guide groove 41. In contact, it becomes a resistance that hinders the movement of rotation. When the user firmly rotates the lock piece 23, the horizontal direction of the lock piece 23 can be switched over the protrusion 42a.

  By providing the projection 42a, it is possible to prevent the lock piece 23 from rotating by an operation unintended by the user and easily being released from the state of being fitted and fixed to the grounding position groove 42. be able to. Although not shown, a protrusion having a similar structure is also provided in a region adjacent to the guide groove 41 of the storage position groove 43.

  When the lock piece 23 is rotated from the state in which the lock piece 23 is fitted in the ground contact position groove portion 42 to the direction in which the lock piece 23 is fitted in the guide groove 41, the holder portion 4 and the leg unit with respect to the cane body 2 (lock piece 23) in the vertical direction. 5 can be moved downward (see the second figure from the bottom in FIG. 9C).

  Further, in the state where the lock piece 23 is fitted in the grounding position groove portion 42, the end 520 on the distal end side of the auxiliary leg 51 protrudes downward from the grounding portion 22 of the cane 2 and is grounded. That is, the grounding portion 22 of the cane 2 does not contact the ground, and the cane body 2 is supported only by the end portion 520 of the auxiliary leg (see FIG. 8A).

  In the state where the end portions 520 of the auxiliary legs 51 are opened, the angle formed by one auxiliary leg 51 and the cane body 2 is about 45 degrees, and the end portions 520 of the two opposing auxiliary legs 51 are located between each other. The distance is about 150 mm. Further, as described above, the upper side surface 510 (see FIG. 8A) of the auxiliary leg 51 abuts on the outer peripheral surface of the cane body 2, and the degree of opening of the end 520 of the auxiliary leg 51 with respect to the cane body 2 is set. The load applied to the auxiliary leg 51 is supported by the cane body 2.

  In this manner, the lock piece 23 is fitted into the ground position groove portion 42 of the holder portion 4 and the vertical movement of the holder portion 4 and the leg unit 5 with respect to the cane body 2 is restricted, so that The structure of the cane assisting tool 3 is fixed.

  By fixing the walking stick assisting tool 3 at this grounding position, the weight of the user is supported by the auxiliary leg 51 or the reaction force when the end 520 is grounded to the ground is applied to the auxiliary leg 51. , Can support the load stably. In addition, the cane body 2 can be made independent and stable.

[Opening and closing structure of auxiliary leg by slider crank mechanism]
A slider crank mechanism for switching between opening and closing of the auxiliary leg 51 in the present invention will be described. The main members constituting the slider crank mechanism are the slider 52, the connecting spring 53, the leg unit base 55, the rod 54, the auxiliary leg 51 (including the crank region 530), the hinge pin 61, the hinge pin 62, and the like in the leg unit 5 described above. This is an auxiliary leg rotation pin 63. In FIG. 8, the structure and movement of the slider crank mechanism are schematically shown by a solid line and a circular figure indicated by symbol A, and a dotted line and a circular figure indicated by symbol B.

  First, the structure in which the slider 52 is connected to the leg unit base 55 by the connecting spring 53 enables the slider 52 to move in the vertical direction (reciprocating in the vertical direction). Further, this movement is caused by the structure in which the through hole 52a of the slider 52 and the through hole 55a of the leg unit base 55 are located on substantially the same straight line and the cane body 2 is inserted at this position. is doing.

  When the auxiliary leg 51 is in the open configuration at the ground contact position shown in FIG. 8A, there is no member in contact with the upper portion of the slider 52, and the slider 52 is connected to the leg unit base 55 by the urging force of the connecting spring 53. A certain distance is maintained between them. In this state, the hinge pin 61, the rod 45, the hinge pin 62, the crank portion 530 (the region between the pin hole 51a and the pin hole 51b of the auxiliary leg 51), and the auxiliary leg rotation pin 63 (original coaxial) are denoted by reference numeral A. The positional relationship is as follows.

  Then, from the state shown in FIG. 8A to the position where the storage position groove 43 and the lock piece 23 shown in FIG. Move.

  Here, the upper end 52f (see FIGS. 4 and 8B) of the slider 52 contacts the lock piece 23. Further, when the upper end 52f of the slider 52 is pushed upward on the lock piece 23 side (the lock piece 23 is pushed downward), the connecting spring 53 contracts against the biasing force of the connecting spring 53 by the force of the pushing operation. Then, the slider 52 moves downward, and the lower region of the slider 52 is accommodated in the through hole 55 a of the leg unit base 55.

  In this way, the connecting spring 53 contracts and the slider 52 moves downward, so that the rod 54 connected via the hinge pin 61 also falls downward. As the rod 54 moves downward, the hinge pin 62 is lowered downward along an arc with the auxiliary leg rotation pin 63 as the original coaxial via the crank 530 (a part of the auxiliary leg 51). The auxiliary leg rotation pin 63 rotates with respect to the pin hole 55d together with the movement of the hinge pin 62 moving downward along the arc shape. The auxiliary leg 51 rotates integrally with the rotation of the auxiliary leg rotation pin 63, and the end 520 on the distal end side comes close to the cane body 2 to be in the storage form.

  That is, the downward movement of the slider 52 in the vertical direction is converted into rotational movement by the hinge pin 61, the rod 54, the hinge pin 62, the crank 530, and the auxiliary leg rotation pin 63, and the auxiliary leg 51 is closed by this rotation movement. It is structured to move in the direction (storage form).

  When the state in which the upper end 52 f of the slider 52 is in contact with the lock piece 23 and is pushed downward is released, the slider 52 is moved upward by the urging force of the coupling spring 53, so that the slider 52 moves between the upper end 52 f and the leg unit base 55. Return to a constant state.

  Due to the upward movement of the slider 52 by the urging force of the connecting spring 53, the auxiliary leg rotation pin 63 rotates in the opposite direction with respect to the pin hole 55d, along with the upward movement of the hinge pin 62 along the arc. To do. The auxiliary leg 51 rotates integrally with the rotation of the auxiliary leg rotation pin 63, and the end 520 on the distal end side is separated from the cane body 2 to be in an open form. That is, a movement in the opposite direction occurs when the auxiliary leg 51 is in the stowed form.

  In this manner, each member constituting the leg unit 5 realizes a slider crank mechanism that converts the reciprocating motion in the vertical direction into the rotational motion. By this mechanism, the holder unit 4 and the leg unit 5 are moved up and down with respect to the cane body 2, and the slider 52 is pushed downward by the lock piece 23, or the contacted state is released, and the auxiliary leg 51 is moved. It can be easily opened and closed.

[Fixing the auxiliary leg in the storage form and storage position]
As described above, when the upper end 52f of the slider 52 is brought into contact with the lock piece 23 and further the upper end 52f of the slider 52 is pushed upward on the lock piece 23 side (the lock piece 23 is pushed downward), the connecting spring 53 contracts and the slider 52 moves downward. When the slider 52 is lowered, the lock piece 23 is positioned at a height position in which the lock piece 23 can be fitted in the storage position groove 43 of the holder portion 4 in the vertical direction (see FIG. 8B).

  9C, the lock piece 23 descends along the guide groove 41 as shown in the lowermost view (cross-sectional view in the direction of arrow AA in FIG. 9B). The lock piece 23 is fitted into the storage position groove 43 when rotated in the clockwise direction around the cane body 2 as the central axis from the position at which the storage position groove 43 can be fitted.

  When the lock piece 23 is fitted in the storage position groove 43, the movement of the lock piece 23 in the vertical direction is restricted at the same position. In this way, the lock piece 23 is fitted into the storage position groove 43 of the holder part 4 and the vertical movement of the holder part 4 and the leg unit 5 with respect to the cane body 2 is restricted, so that The structure of the cane assisting tool 3 is fixed.

  By fixing the cane assisting tool 3 at this storage position, the auxiliary leg 51 is in a closed storage form, and at the storage position in the vertical direction, the end 520 on the distal end side of the auxiliary leg 51 is connected to the ground of the cane 1. It will be located above the part 22 (refer FIG.8 (b) and FIG.9 (a)). That is, the auxiliary leg 51 is not only closed, but is fixed at a position sufficiently away from the ground or the like, so that the grounding to the grounding portion 22 of the cane 1 is not disturbed and has a compact form. As a result, usability can be improved.

  As described above, in the first embodiment of the present invention, the lock piece 23 of the cane body 2 and the cane assisting tool 3 that can be externally fitted to the cane body 2 are provided in the distal end side region of the cane 1. By using the movement of moving the auxiliary tool 3 up and down with respect to the cane body 2, it is possible to easily change the contact position or the storage position of the auxiliary leg 51 in the open form.

  The auxiliary leg 51 abuts the lock piece 23 and the upper end 52f of the slider 52 constituting the cane assisting tool 3 and uses the urging force of the connecting spring 53 to allow the slider 52 to move up and down. Thus, the vertical movement of the slider 52 can be converted into the opening / closing movement of the auxiliary leg 51. That is, the opening and closing of the auxiliary leg 51 can be switched with a simple operation and a small force to move the holder 4 and the leg unit 5 up and down to the storage position or the grounding position along the longitudinal direction of the cane body 2.

  Further, the holder 4 and the leg unit 5 in the vertical direction can be moved to the storage position or the ground contact position by simply rotating the holder 4 with respect to the cane body 2 to move the lock piece 23 to the storage position groove 43 or the ground position groove 42. And can be fixed. By fixing the cane assisting tool 3 at the storage position and the ground contact position, it is possible to achieve a stable structure in a state where the auxiliary leg 51 is opened and in a state where the auxiliary leg 51 is closed and stored.

  Moreover, the process with respect to the cane main body 2 is only the operation | work which forms the through-hole which attaches and fixes the lock piece 23, and can attach the cane auxiliary tool 3 easily. Moreover, since the area | region which processes the cane body 2 is also small, the intensity | strength of the cane body 2 itself can fully be ensured.

(Second Embodiment)
Next, a second embodiment of the present invention will be described.
In the cane 100 according to the second embodiment shown in FIGS. 10A and 10B, a substantially C-shaped lock piece 123 is attached to the cane body 102 via a screw 145 in a plan view. It has a structure. In addition, since the attachment structure of the cane 100 and the lock piece 123 differs from the cane 1 of 1st Embodiment mentioned above, the structure of the other cane auxiliary tools 3 is the same, Therefore The description is abbreviate | omitted.

  More specifically, in the lock piece 123, the cane body 102 can be inserted into the central through hole 123a, and in the state where the cane body 102 is inserted, the screw 145 is tightened to reduce the diameter of the through hole 123a. The lock piece 123 is fixed to the outer peripheral surface of the cane body 102. That is, in the vertical direction, the lock piece 123 is fixed at a certain distance from the tip of the cane 1 in the same manner as the lock piece 23 described above.

  Further, by moving the cane assisting tool 3 up and down along the longitudinal direction of the cane body 102, the lock piece 123 can be moved to a height position at which the lock piece 123 can be fitted into the storage position groove 43 or the grounding position groove 42. it can.

  Further, as shown in the middle diagram of FIG. 10B, the lock piece 123 is guided in the vertical direction along the guide groove 41. When the lock piece 123 is rotated around the cane body 102 at the position of the grounding position groove portion 42 or the storage position groove portion 43, the lock piece is fitted in each groove portion, and the movement in the vertical direction is restricted to assist the cane. The tool 3 can be fixed.

  Thus, the cane 100 shown in the second embodiment has a structure in which the cane assisting tool 3 can be attached without performing processing such as forming a through hole in the cane body 102. For this reason, the cane auxiliary tool 3 of the existing cane can be attached and used more easily. Moreover, it can be set as the cane provided with sufficient intensity | strength and stability, without causing the strength fall by the process to the cane body 2. FIG.

(Third embodiment)
Subsequently, a third embodiment of the present invention will be described.
A cane 200 according to the third embodiment shown in FIG. 11 has a semi-cylindrical covering pipe 203 that can be externally fitted over a region on the distal end side of the cane body 202. The covered pipe 203 is fixed to the cane body 202 via a tightening nut 245.

  A lock piece 223 that protrudes outward from the covered pipe 203 is welded to the outer peripheral surface of the covered pipe 203. A grounding portion 220 of the cane 200 is attached to the tip of the covering pipe 203. Note that the structures of the covering pipe 203 and the lock piece 223 with respect to the cane 200 are different from the cane 1 of the first embodiment described above, and the other structures of the cane assisting tool 3 are the same, and thus the description thereof is omitted. Moreover, the point that the lock piece 223 is fixed at a certain distance from the distal end side of the cane 200 in the vertical direction is the same as the lock piece 23 described above.

  Further, by moving the cane assisting tool 3 up and down along the longitudinal direction of the cane body 202 and the covering pipe 203, the lock piece 223 is moved to a height position at which the lock piece 223 can be fitted into the storage position groove 43 or the grounding position groove 42. Can be moved.

  Further, the lock piece 223 is guided in the vertical direction along the guide groove 41. When the lock piece 223 is rotated around the cane body 202 at the position of the grounding position groove portion 42 or the storage position groove portion 43, the lock piece is fitted in each groove portion to restrict the movement in the vertical direction, thereby assisting the cane. The tool 3 can be fixed.

  Thus, the cane 200 shown in the third embodiment has a structure in which the cane assisting tool 3 can be attached via the covering pipe 203 without performing processing such as forming a through hole in the cane body 202. ing. For this reason, the cane auxiliary tool 3 of the existing cane can be attached and used more easily. Moreover, it can be set as the cane provided with sufficient intensity | strength and stability, without causing the strength fall by the process to the cane body 2. FIG.

(Fourth embodiment)
Subsequently, a fourth embodiment of the present invention will be described. Hereinafter, the fourth embodiment will be described mainly with reference to FIGS. 12 to 19, and other drawings will be referred to as necessary.
In addition, the same code | symbol is attached | subjected about the member which overlaps with 1st Embodiment-3rd Embodiment already mentioned above, and the description regarding the member is abbreviate | omitted.

  The cane 10 which is the 4th Embodiment of this invention is equipped with the cane main body 20 and the cane auxiliary tool 30 (refer FIG. 12).

  Further, the cane body 20 is provided with a lock piece 230 at an upper position away from the tip of the cane body 20 (see FIGS. 12 to 16). The lock piece 230 is fixed by being fitted on the outer peripheral surface of the cane body 20.

  As with the lock piece described above, the lock piece 230 is fitted to the grounding position groove portion 42b or the storage position groove portion 43b (see FIG. 19) provided in the holder portion 40, thereby assisting the cane assisting device 30 in the open form. The leg 51 is a member responsible for fixing at the ground contact position or for fixing the auxiliary leg in the storage form at the storage position.

  The cane assisting tool 30 is connected to a cylindrical holder part 40 having a guide hole 40a formed therein, and to the lower end of the holder part 40, and is vertically integrated with the holder part 40 along the longitudinal direction of the cane body 20. The leg unit 5 is configured to be movable (see FIG. 12).

  The holder part 40 includes a holder part main body 40b and a holder part bottom part 40c, and the guide rail 7 is attached to an internal space (guide hole 40a) having a structure in which the holder part main body 40b and the holder part bottom part 40c are integrated. .

  The holder part main body 40 b is a main body of the holder part 40. The holder portion bottom portion 40 c is a member that constitutes a part of the holder portion 40 and connects the holder portion main body 40 b and the leg unit base portion 55.

  The cane body 20 is inserted through the guide hole 40 a of the holder part 40, and is configured to be movable up and down along the longitudinal direction of the cane body 20. Further, the guide hole 40 a becomes a movement path when the lock piece 230 fixed to the cane body 20 moves along the longitudinal direction of the holder part 40. The upper and lower ends of the guide hole 40a communicate with the storage position groove portion 42b and the ground position groove portion 43b (see FIG. 19).

  Moreover, the guide rail 7 attached to the inside of the holder portion 40 is a regulating member for regulating the movement of the lock piece 230 when the lock piece 230 moves through the guide hole 40a (see FIG. 14). . The detailed structure of the guide rail 7 will be described later.

  Further, when the lock piece 230 is fitted to the storage position groove portion 42b or the grounding position groove portion 43b, the lock piece 230 can be rotated about the cane body 20 at a predetermined movement amount at the same position in the vertical direction, and Movement in the direction is restricted.

  As described above, the lock piece 230 is fitted to the storage position groove portion 42b or the grounding position groove portion 43b, and movement in the vertical direction is restricted, so that the cane assisting tool 30 is fixed.

  Further, a ring-shaped lid 44 is fixed to the upper portion of the holder portion 40 via a screw (not shown), and the lock piece 230 is locked to the holder portion 40 from the state where the lock piece 230 and the grounding position groove portion 43a are fitted. The movement of 230 through upward is restricted.

  The leg unit 5 has four auxiliary legs 51 that can be opened and closed. The leg unit 5 includes a slider 52, two connecting springs 53, four rods 54, a leg unit base 55, and four auxiliary legs 51 (see FIG. 12). Note that the wand 10 has a slider crank mechanism for opening and closing the auxiliary legs 51, as in the first embodiment described above.

  Due to the structure of the leg unit base 55 and the holder 40 described above, a part of the slider 52, the connecting spring 53, and the rod 54 is disposed inside the holder 40 and the leg unit base 55. Moreover, when the holder part 40 is moved up and down along the longitudinal direction of the cane body 20, the leg unit base 55 is configured to be movable integrally with the holder part 40.

[Rock piece]
As shown in FIG. 15, the lock piece 230 has a substantially C-shaped main body, and a through-hole 230a is formed inside thereof. The lock piece 230 has a slit 230b that penetrates the outer peripheral surface and the inner peripheral surface thereof.

  Further, the lock piece 230 has a recess 230c formed in a part of the outer peripheral surface thereof, and a pin hole 230d formed in a part of a region constituting the recess 230c. The pin hole 230d referred to here corresponds to the first rotation stop hole in the claims of the present application.

  Further, the lock piece 230 is formed with a locking convex portion 230e and a protruding portion 230g on a part of the outer peripheral surface thereof. Further, the lock piece 230 is formed with a screw hole 230f in which a screw groove is cut on the inner peripheral surface of the hole.

  The lock piece 230 is formed of a resin such as plastic, and the cane body 20 is inserted into the through-hole 230a and is externally fitted to the outer peripheral surface of the cane body 20, and the screw 240 (FIGS. 13 and 16B is inserted into the screw hole 230f. ) And FIG. 16 (c)) are inserted and tightened, the interval between the slits 230 b is reduced, and the lock piece 230 is fixed to the cane body 20.

  Further, a pin hole 20 d penetrating the outer peripheral surface is formed on the outer peripheral surface of the cane body 20. The pin hole 20d referred to here corresponds to the second rotation stop hole in the claims of the present application.

  In addition, the lock piece 230 is attached to the outer peripheral surface of the cane body 20 so that the pin hole 230d of the lock piece 230 and the pin hole 20d of the cane body 20 are aligned on the same straight line, and is rotated around the pin hole 230d and the pin hole 20d. A stop pin 250 is inserted (see FIGS. 13, 16A, and 16B). The stop pin 250 referred to here corresponds to the stop pin in the claims of the present application.

  As described above, the lock piece 230 is fixed to the cane body 20 through the pin hole 230d, the pin hole 20d, and the rotation stop pin 250, so that the lock piece 230 rotates around the cane body 230. Can be regulated. That is, the structure in which the cane body 230 and the lock piece 230 rotate together can be suppressed by suppressing the movement of the lock piece 230 that rotates idle along the outer peripheral surface of the cane body 230.

  Here, the lock piece 230 does not necessarily have to be formed in a substantially C shape, and it is sufficient if the lock piece 230 is formed in a shape that can be fitted on the outer peripheral surface of the cane body 20.

  Further, it is not always necessary that the lock piece 230 is fixed to the cane body 20 by inserting and tightening the screw 240 into the screw hole 230f, and the lock piece 230 is attached to the outer peripheral surface of the cane body 20. If fixing is possible, the fixing means can be appropriately selected.

  In addition, the lock piece 230 is not necessarily fixed to the cane body 20 via the pin hole 230d, the pin hole 20d, and the locking pin 250. However, as described above, since the movement of the lock piece 230 spinning along the outer peripheral surface of the cane body 230 can be suppressed, the lock piece 230 has a pin hole 230d with respect to the cane body 20. The pin hole 20d and the locking pin 250 are preferably fixed.

  Further, in the structure described above, one set of pin hole 230d, pin hole 20d, and rotation stop pin 250 is provided, but this number is not limited to one. For example, a structure in which two or more sets of the pin hole 230d, the pin hole 20d, and the locking pin 250 are provided to more firmly restrict the movement of the lock piece 230 relative to the cane body 20 can be adopted.

  Further, the concave portion 230c of the lock piece 230 is a portion that is fitted with a convex portion 70 of the guide rail 7 to be described later and restricts the movement of the lock piece 230 that moves through the guide hole 40a.

  Further, the locking convex portion 230e of the lock piece 230 is a portion that engages with a stepped portion 420a of the storage position groove portion 42b to be described later to lock the lock piece 230 positioned in the storage position groove portion 42b. In addition, the protrusion 230g is brought into contact with the stepped portion 420a after the lock piece 230 is locked, and the lock piece 230 is rotated by an operation not intended by the user, so that the lock state is easily released. Can be suppressed.

[Guide rail]
As shown in FIG. 17, the guide rail 7 has a shape in which convex portions 70 are formed on both sides of the flat plate-like main body and along the longitudinal direction (FIG. 17A and FIG. 17). b)).

  The convex portion 70 of the guide rail 7 is disposed at a position that can be opposed to the concave portion 230c of the lock piece 230 in the guide hole 40a of the holder portion 40 (see FIGS. 18A and 18B). Further, the distance between the convex portions 70 is smaller than the width of the concave portion 230c. FIG. 18A is a schematic cross-sectional view seen in the AA direction shown in the diagram of FIG.

  Therefore, in the position where the guide rail 7 and the lock piece 230 face each other, the arrangement is such that the convex portion 70 is accommodated inside the concave portion 230c. Thereby, on the path along which the lock piece 230 moves along the guide hole 40a, when the lock piece 230 tries to rotate about the axis of the cane body 20 with respect to the inner peripheral surface of the holder portion 40, The convex portion 70 comes into contact with the inner peripheral surface of the concave portion 230c, and the rotational movement of the lock piece 230 is restricted.

  That is, when the lock piece 230 and the cane body 20 are rotated at the position of the guide hole 40a and the lock piece 230 reaches the storage position groove portion 42b and the grounding position groove portion 43b connected to the guide hole 40a, the lock piece 230 and the cane body 20 are fitted to each groove portion. It is possible to suppress problems that cannot be matched.

  Thus, by providing the guide rail 7 in the guide hole 40a of the holder part 40, it becomes possible to regulate the rotational movement of the lock piece 230 that moves through the guide hole 40a.

  About the cane 10 demonstrated above, the detail of a movement at the time of using the cane auxiliary tool 30 is demonstrated. In more detail, the movement of the cane auxiliary tool 3 in the vertical direction, the movement of opening and closing the auxiliary leg 51 in conjunction with the movement, and the movement of fixing the auxiliary leg 51 will be described.

[Auxiliary leg opening and fixing at the grounding position]
The state in which the lock piece 230 and the grounding position groove portion 42b are fitted is shown in the left and right diagrams in the upper part of FIG. 19B (cross-sectional view in the direction of arrow CC in FIG. 19A).

  The lock piece 230 is in the unlocked state (the upper left figure in FIG. 19 (b)) and in the locked state (FIG. 19 (b)) at the position of the grounding position groove portion 42b according to the rotation about the cane body 20. You can take the upper right figure).

  In the unlocked state, the lock piece 230 has a gap between the locking convex portion 230e of the lock piece 230 and the stepped portion 420a formed in the grounding position groove portion 42b.

  Then, when changing from the unlocked state to the locked state at the contact position groove portion 42b, the lock piece 230 and the cane body 230 are rotated in the clockwise direction as viewed in FIG. 19B (when the holder portion 40 is rotated). Rotate counterclockwise).

  Then, the stepped portion 420a gets over the curved portion 230g of the lock piece 230, comes into contact with the locking convex portion 230e, and further movement is restricted.

  Further, at the position where the locking convex portion 230e of the lock piece 230 and the stepped portion 420a are in contact, the movement of the lock piece 230 along the longitudinal direction of the holder portion 40 is also restricted, and the lock piece 230 is locked.

  When the lock piece 230 is rotated from the state in which the lock piece 230 is fitted into the grounding position groove 43b to be fitted into the guide hole 40a, the holder unit 40 and the leg unit are moved with respect to the cane body 20 (lock piece 230) in the vertical direction. 5 can be moved downward (see the middle diagram in FIG. 19B).

  Further, the lock piece 230 is fitted into the grounding position groove portion 42b of the holder part 40, and the vertical movement of the holder part 40 and the leg unit 5 with respect to the cane body 20 is restricted, thereby assisting the cane at the grounding position. The structure of the tool 30 is fixed.

  By fixing the walking stick assisting tool 30 at this grounding position, the weight of the user is supported by the auxiliary leg 51, or the reaction force when the end 520 is grounded to the ground is applied to the auxiliary leg 51. , Can support the load stably. In addition, the cane body 20 can be made independent and stable.

As described above, the cane assisting device to which the present invention is applied enables the cane to stand on its own, and has excellent stability and handleability when it contacts the ground.
In addition, the cane to which the present invention is applied is capable of self-supporting and has excellent stability and handleability when contacting the ground.

  The terms and expressions used in the present specification and claims are for illustrative purposes only, and are not intended to be limiting in any way. The features described in the present specification and claims and their terms There is no intention of excluding some equivalent terms and expressions. It goes without saying that various modifications are possible within the scope of the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 Cane 2 Cane body 21 Grip 22 Grounding part 23 Lock piece 3 Cane assisting tool 4 Holder part 41 Guide groove 42 Grounding position groove part 42a Protrusion part 43 Storage position groove part 44 Cover 45 Screw 5 Leg unit 51 Auxiliary leg 51a Pin hole 51b Pin hole 510 Upper side of auxiliary leg 520 End of auxiliary leg 530 Crank part 52 Slider 52a Through hole 52b Spring mounting hole 52c Rod mounting groove 52d Pin hole 52e Pin hole 52f Upper end of slider 53 Link spring 54 Rod 54a Pin hole 54c Crank shape 55 Leg unit base 55a Through hole 55b Spring mounting hole 55c Auxiliary leg mounting groove 55d Pin hole 61 Hinge pin 62 Hinge pin 63 Auxiliary leg rotation pin 100 Cane 102 Cane body 123 Lock piece 123a Through hole 145 Screw 200 Cane 202 Cane body 203 Covered pipe 220 Grounding part 223 Lock piece 245 Tightening nut 10 Cane 20 Cane body 20d Pin hole 30 Cane aid 40 Holder part 40a Guide hole 40b Holder part body 40c Holder part bottom part 42b Grounding position groove part 420a Step part 43b Storing position groove 230 Lock piece 230a Through hole 230b Slit 230c Concave 230d Pin hole 230e Locking convex part 230g Projecting part 230f Screw hole 240 Screw 250 Non-rotating pin 7 Guide rail 70 Convex part

Claims (8)

A lock piece that is located at a predetermined distance from the tip of the cane in the longitudinal direction of the stick-like cane and provided on the outer peripheral surface of the cane,
A cylindrical leg unit main body formed with a through-hole through which the cane can be inserted and movable between the lock piece and the tip of the cane;
One end is attached to the leg unit main body and the other end is configured to be rotatable in a direction approaching or separating from the cane about the one end side, and the leg unit main body abuts on the lock piece and the cane The other end rotates in a direction approaching the cane in a state of being pushed in the direction of the distal end portion, and the leg unit body moves from the lock piece to the distal end portion of the cane. A plurality of legs that rotate in a direction away from the cane by releasing the pressed state, and in an open form;
A cylindrical body attached to the leg unit main body and formed with a through-hole through which the cane and the lock piece can be inserted, and is configured to be movable in the longitudinal direction of the cane integrally with the leg unit main body. And a storage position groove portion that can be fitted to the lock piece and fix the state where the leg unit main body is in contact with the lock piece and pushed toward the tip of the cane, and the lock piece A grounding position groove portion that can fix a state in which the leg unit main body is located on the distal end side of the cane and the leg portion supports the cane in a self-supporting manner is formed on an inner peripheral surface thereof. A cane assisting device comprising a holder portion. The cane assisting tool according to claim 1, wherein the lock piece and the storage position groove part or the grounding position groove part can be fitted by rotating the holder part around the axis of the cane. The lock piece has a substantially ring-shaped lock piece main body, a slit is formed in a part of the lock piece main body, and the lock piece can be attached to the slit in a state where the cane is arranged inside the lock piece main body. The wand auxiliary tool according to claim 1 or 2, wherein the lock piece main body is fixed to the outer peripheral surface of the wand with a fixing tool. The lock piece main body is formed with a first rotation stop hole penetrating between the inner peripheral surface and the outer peripheral surface,
The cane is formed with a second stop hole in the axial direction of the cane at a position facing the first stop hole on the outer peripheral surface thereof,
The walking stick auxiliary tool according to claim 3, further comprising a locking pin that is inserted through the first locking hole and the second locking hole and restricts the rotational movement of the lock piece body around the walking stick. . The holder portion is provided on the inner peripheral surface thereof along the longitudinal direction of the holder portion, communicates with the storage position groove portion and the grounding position groove portion, and forms a guide hole configured to allow the lock piece to move. And
The lock piece main body is a cross-sectional view seen from a direction substantially orthogonal to the axial direction of the cane, and a recess is formed in a part of the outer peripheral surface thereof,
The holder is attached to the holder along the longitudinal direction of the guide hole, and is fitted into the recess to rotate the cane and the lock piece about the axis of the can with respect to the holder. The cane assisting tool according to claim 3 or 4, wherein the convex portion to be regulated has a guide rail formed along a longitudinal direction thereof. The area | region which opposes the outer peripheral surface of the said cane in the said one end side of the said leg part contact | abuts the outer peripheral surface of the said cane, and the rotation to the direction which the said other end separates from the same cane is controlled. Claim 2, Claim 3, Claim 4, or Claim 5 cane assisting tool. The leg unit body is
A first leg unit member configured to come into contact with the lock piece;
The first leg unit member provided on the opposite side of the first leg unit member from the side in contact with the lock piece and disposed between the first leg unit member in the direction of the lock piece. A second leg unit member connected to the first leg unit member via an elastic body biased toward the
A rod having one end attached to the first leg unit member via a first pin and the other end pivotally supporting the leg portion rotatably via a second pin;
The leg portion is rotatably supported by the second leg unit member via a third pin,
Constituting a slider crank mechanism in which the first leg unit member is a slider, the third pin is an original coaxial, and the region between the second pin and the third pin of the leg is a crank;
As the first leg unit member comes into contact with the lock piece and the first leg unit member is pushed toward the tip of the cane against the urging force of the elastic body, 2. The second pin moves on a circumference centering on the third pin, and the third pin rotates, so that the other end of the leg portion rotates in a direction approaching the cane. The walking stick assisting device according to claim 2, claim 3, claim 4, claim 5, or claim 6. A cane body formed in a rod shape and provided with a handle at the base end, and located at a predetermined distance from the distal end of the cane body in the longitudinal direction of the cane body, and provided on the outer peripheral surface of the cane body And a cylindrical leg unit body that is movable between the lock piece and the tip of the cane body, and one end of the leg unit body. And the other end is configured to be rotatable toward or away from the cane body about the one end side, and the leg unit body abuts the lock piece to By being pushed in the direction, the other end rotates in the direction approaching the cane body to be in the storage form, and the leg unit body is pushed from the lock piece toward the tip of the cane body. Canceled state is released A plurality of legs that rotate in the direction in which the other end is separated from the cane body to be open, and a through-hole that is attached to the leg unit body and through which the cane body and the lock piece can be inserted. a formed cylindrical body, together with the movable in the longitudinal direction of the Doashi unit body integrally with the wand body, fitted with the lock piece, the leg unit body is the same lock piece A storage position groove portion that can be fixed in a state where it contacts and is pushed in the direction of the distal end portion of the cane body, and is fitted with the lock piece, the leg unit body is located on the distal end side of the cane body, A walking stick comprising: a grounding position groove part capable of fixing a state in which the leg part supports the cane body in a self-supporting manner and a holder part formed on an inner peripheral surface thereof.

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