JP2015000191A - Stick - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stick in which a leg body opening/closing operation is simple and convenient, which does not permit the slightest opening of the leg when the leg is closed, and whose mechanism to open/close the leg body is simple.SOLUTION: Leg bodies 7 are pivotally supported at the lower end of a stick shaft 1, and open in a downward, diagonal direction so that the stick shaft 1 is self-supportable. The lower end of a tubular member 3 that can slide in an axial direction with respect to the stick shaft 1 and the leg bodies 7 are connected by link members 8. The link members 8 are energized in the downward direction of the stick shaft by a coil spring housed inside a tubular body 25 disposed at the upper end of the stick shaft, and by the energizing force, the leg bodies 7 open. The closed state of the leg bodies 7 is maintained by the magnetic attraction force by a permanent magnet 13 provided to a regulation member 11 that contacts the leg bodies 7 in a closed state, and a ferromagnetic body 15 provided to the leg bodies 7. When a tubular member 3 is twisted in a circumferential direction with respect to the stick shaft 1, the magnetic attraction is released and the leg bodies 7 open.

Description

  The present invention relates to a cane that can be made independent when not in use.

  2. Description of the Related Art Conventionally, as this type of walking stick, as disclosed in Patent Document 1, one having a leg that enables independence at the lower end portion is known. Free-standing legs should not interfere with use as a cane. For this reason, in the prior art disclosed in Patent Document 1, the leg is configured to be openable and closable so that it can be closed when the wand is used and can be opened when the wand is not used. . Further, the leg is configured to be opened by a biasing force of a spring with a simple button operation as a trigger.

  However, in the prior art disclosed in Patent Document 1, in order to maintain the leg in a closed state, the movable connecting body that rotatably supports the upper end of the leg that opens and closes is provided above the cane shaft, that is, in the direction of the handle. In the state where it is pulled up, it is configured to be engaged with the cane shaft by the engaging member connected to the operation button. For this reason, even if the movable coupling body is in the locked state and the leg body is thereby closed, the force that prevents the leg body from being slightly opened does not act on the leg body. As a result, a slight opening of the leg is allowed when using the cane.

  This is because, in a conventionally well-known umbrella configured to be opened by a biasing force of a spring with a button operation as a trigger, when the main bone is closed and the lower ring is locked to the engaging member (lower repellent), the main bone In order not to allow a slight opening of the belt, a belt can be wound around the closed umbrella fabric and the belt can be locked with a hook or the like, or can be slid around the handle. It can be easily understood from daily experience that it is necessary to store the tip (dew) of the main bone in a simple cap (ball). When the cane is used, if the leg is open, although slightly, it does not look good and the lower end of the leg tends to abruptly abut against obstacles on the road, making it difficult to use. It will be a thing.

  The prior art disclosed in Patent Document 1 further requires two link members for opening and closing the legs, so that the mechanism for opening and closing the legs is complicated and the cost increases. There was a problem.

JP 2002-119316 A

  The present invention has been made in view of the above problems, and provides a cane that is easy to open and close the leg, does not allow a slight opening when the leg is closed, and has a simple mechanism for opening and closing the leg. The purpose is to do.

  In order to solve the above problems and achieve the above object, the first aspect of the present invention is a cane, comprising a cane shaft, a plurality of legs, a movable member, and a plurality of link members. And an urging member and a regulating member. A plurality of legs are pivotally supported at the lower end portion of the cane shaft so that each base end portion is pivotable, thereby opening the legs in an obliquely downward direction and closing the legs in a substantially upward direction. The movable member is slidably provided on the cane shaft above the pivot shaft of the base end portion of each of the plurality of legs. The plurality of link members are pivotally supported so that one end of each of the plurality of legs is intermediate between the base end portion and the tip end portion, and the other end of each of the plurality of leg members is pivotally supported by the movable member. Yes. The urging member urges the movable member downward with respect to the cane shaft, thereby causing the plurality of legs to open, thereby allowing the cane shaft to stand on its own. The restricting member is connected to the cane shaft or the movable member, and comes into contact with the plurality of legs, so that the closed leg positions of the plurality of legs are naturally opened by the urging force of the urging member. To regulate. Each of the plurality of legs and the restricting member have a set of magnetic bodies at a contact portion with each other, and the sets of the magnetic bodies are attracted to each other by at least one being a magnet, thereby The plurality of legs can be held in the closed leg position against the biasing force.

  According to this configuration, the urging force of the urging member acting on the movable member can open the plurality of legs through the link member, thereby allowing the cane shaft to stand on the floor surface, the ground, or the like. Is possible. By pulling the movable member upward in the cane axis direction, the plurality of legs can be closed through the link member. The plurality of legs can be closed until they abut against a regulating member that regulates the position of the closed leg. When the plurality of legs abut on the regulating member, they are attracted to each other by the set of magnetic bodies at the abutting portions, and as a result, the plurality of legs are held in the closed leg position. The plurality of legs are urged in the leg-opening direction by the urging member, but the abutment against the regulating member is maintained by the attraction force of the magnetic body against this. Thus, the problem in the prior art that the plurality of legs open slightly when the legs are closed is eliminated.

  When the plurality of legs are slightly separated from the restricting member by, for example, manual operation, the magnetic attractive force decreases rapidly. As a result, even when the plurality of legs are in the closed leg position, the urging force of the urging member that still acts in the opening leg direction becomes more dominant than the magnetic attractive force, and the plurality of legs are opened by the urging force. To do. Thus, the cane by this structure can open and close a leg body easily. In addition, since one link member for opening and closing a plurality of legs is sufficient for each leg, the mechanism for opening and closing the legs is simpler than in the prior art having two link members for each leg. It is.

  According to a second aspect of the present invention, there is provided a cane according to the first aspect, wherein the restricting member can be twisted in the cane axis circumferential direction with respect to the cane axis, A portion adjacent to at least one of the legs in the circumferential direction of the wand shaft protrudes outward in the wand shaft radial direction from the circumference around the wand shaft passing through the contact portion.

  According to this configuration, the regulating member can be twisted in the cane axis circumferential direction with respect to the cane axis. Therefore, by twisting the regulating member in the circumferential direction with respect to the cane axis, The shaft and the leg connected to the shaft can be shifted in the circumferential direction. When the plurality of legs are in the closed leg state in contact with the regulating member, when the leg is shifted to at least one of the circumferential directions, the portion of the regulating member protruding outward in the wand shaft radial direction Will be pushed outward in the radial direction. Thereby, the favorable contact state between the sets of magnetic bodies at the contact portion is released, and as a result, the magnetic attractive force is weakened, and the plurality of legs are opened. That is, it is possible to open a plurality of legs that are closed by a simple operation of twisting the regulating member in at least one of the circumferential directions with respect to the cane shaft.

  According to a third aspect of the present invention, there is provided a cane according to the first or second aspect, wherein each of the plurality of legs has a center of gravity at the base end portion when the leg is in the closed leg position. It is located on the outer side in the radial direction of the cane shaft with respect to the pivot shaft.

  According to this configuration, when a plurality of legs are in a closed state, an impact force in the downward direction of the cane axis is applied to the plurality of legs by hitting the lower end of the cane shaft against the ground or the like with a predetermined strength or more. can do. Since the center of gravity of each of the plurality of legs is located on the radially outer side of the cane shaft with respect to the pivot shaft of the base end, the impact force in the downward direction of the cane axis Generate impact force. By this impact force, the contact state of the set of magnetic bodies that attract each of the plurality of legs to the regulating member is released. As a result, the magnetic attractive force is weakened and the plurality of legs are opened. That is, it is possible to open a plurality of legs that are closed by a simple operation of hitting the stick shaft against the ground or the like with a predetermined strength or more.

  According to a fourth aspect of the present invention, there is provided a cane according to any one of the first to third aspects, wherein each of the plurality of legs is in contact with the regulating member at a tip portion thereof.

  According to this configuration, each of the plurality of legs is in contact with the regulating member at the tip thereof, so that the magnetic attraction force of the set of magnetic bodies at the contact portion maintains the closed leg of each leg. It works effectively.

  According to a fifth aspect of the present invention, there is provided a cane according to any one of the first to fourth aspects, wherein the set of magnetic bodies is a magnet in which the side of the regulating member is permanently magnetized, Each side of the plurality of legs is a ferromagnetic body that is not permanently magnetized.

  According to this configuration, since the magnetic body included in each of the plurality of legs is a ferromagnetic body that is not permanently magnetized, when the cane is made independent by opening the legs, the ground body or the like Adsorption of a magnetic material such as iron powder on the leg is suppressed.

  According to a sixth aspect of the present invention, there is provided a cane according to any one of the first to fifth aspects, wherein the movable member pivotally supports the other end of each of the plurality of link members. A support member; and a long member that is coupled to the lower end portion, is slidably disposed around the cane shaft, and extends to the vicinity of the upper end of the cane shaft.

  According to this configuration, since the movable member has a long body coupled to the support member, the plurality of opened legs can be closed by grasping the long body and sliding it upward on the cane shaft. Can do.

  According to a seventh aspect of the present invention, there is provided a cane according to the sixth aspect, wherein the elongate body is tubular and is disposed so as to be inserted through the cane shaft.

  According to this configuration, since the long body is tubular, it is easy to obtain the long body in manufacturing a cane. In addition, since the long body is disposed so as to surround the cane shaft, the long body is easily gripped.

  According to an eighth aspect of the present invention, there is provided a cane according to the sixth or seventh aspect, wherein the biasing member is disposed around the cane shaft so as to surround the cane shaft. The upper end of the spring is restricted by the upper end portion of the cane shaft, and the lower end biases the upper end of the elongated body.

  According to this configuration, since the urging member is configured by the coil spring disposed so as to surround the cane shaft, it is easy to apply the urging force over the movable range of the movable member.

  According to a ninth aspect of the present invention, there is provided a cane according to the eighth aspect, wherein an upper end portion is connected to the upper end portion of the cane shaft, the coil spring and the upper end portion of the elongated body, Is further provided with a tubular body that slidably covers.

  According to this configuration, the tubular body connected to the cane shaft covers the coil spring and the upper end portion of the long body, so that the tubular body functions as a protective cover for a member that moves with respect to the cane shaft. For this reason, the cane becomes easier to use. Since the coil spring and the upper end of the elongated body are slidable with respect to the tubular body, the tubular body does not hinder the movement of these members.

  According to a tenth aspect of the present invention, there is provided a cane according to any one of the first to ninth aspects, wherein the restricting member is the first restricting member, and the cane shaft is made independent. A second restricting member for restricting the movable member so that the movable member does not move downward with respect to the cane shaft beyond a predetermined position that allows the plurality of legs to sufficiently open legs; Yes.

  According to this configuration, when the plurality of legs are opened, the legs extend excessively downward due to the urging force of the urging member, which makes it difficult for the cane shaft to become independent. It can be suppressed by the regulating member.

  As described above, according to the present invention, it is possible to realize a cane that is easy to open and close the leg, does not allow a slight opening when the leg is closed, and has a simple mechanism for opening and closing the leg.

It is a perspective view which shows the structure of the cane by one embodiment of this invention. It is a front fragmentary sectional view which shows the structure of the cane of FIG. FIG. 2 is a partial front view of the cane of FIG. 1 with the legs in a closed leg state. It is a fragmentary top view which shows operation | movement of a control member about the cane of FIG. It is a fragmentary top view which shows the structure and operation | movement of a control member about the cane by another embodiment of this invention. It is a front fragmentary sectional view which shows the structure of the lower end part of the cane by another embodiment of this invention. It is a perspective view which shows the structure of the cane by another embodiment of this invention.

  FIG. 1 is a perspective view showing a configuration of a cane according to an embodiment of the present invention. In FIG. 1, a part of the member (reference numeral 3) is cut away to show the internal structure. FIG. 2 is a front partial sectional view showing the configuration of the cane of FIG. Furthermore, FIG. 3 is a partial front view of the cane of FIG. 1 in which the leg is in a closed leg state. Also in FIG. 3, a part of the member (reference numeral 3) is cut away to show the internal structure. First, the configuration and operation of a cane according to an embodiment of the present invention will be described with reference to FIGS.

  The cane 101 has a cane shaft 1 that enables use as a cane. A grip portion 27 for gripping in use is fixed to the upper end of the cane shaft 1, and plastic or rubber is used for the lower end to make the contact with the ground or floor surface flexible. A buffer member 17 is fixed via a cylindrical body 19. The cane shaft 1 has, for example, a rod shape or a tubular shape, and is a metal tube such as an aluminum tube as an example of a tubular shape. The cylindrical body 19 is fixed to the cane shaft 1 with a screw, for example.

  The cane 101 further includes a plurality of legs 7 that can be used normally as a cane by closing the leg and can stand independently by opening the leg. A leg portion 23 is attached to the distal end portion of the leg body 7 to soften the contact with the ground or the floor surface in the open leg state. The cane shaft 1 has a leg support member 5 fixed to the lower end portion thereof, and the plurality of leg bodies 7 are pivotally supported by the leg support member 5 at their base ends. Yes. Thereby, the leg 7 can be opened in the diagonally downward direction and closed in the substantially upward direction. The plurality of leg bodies 7 are three as an example, and are arranged so as to be three times symmetrical around the axis of the cane shaft 1. In FIG. 2 and FIG. 3, for the sake of easy understanding of the structure and operation of the leg body 7, for convenience, the four leg bodies 7 are represented as if they were arranged four times symmetrically.

  One end of the link member 8 is pivotally supported at an intermediate portion between the base end portion and the distal end portion of the leg body 7 so as to be rotatable. As an example, one end of the link member 8 is pivotally supported at a substantially central portion in the axial direction of the leg 7. The other end of the link member 8 is pivotally supported by a link support member 9 fixed to the lower end portion of the tubular member 3. The tubular member 3 is disposed above the leg support member 5 so as to be slidable with respect to the cane shaft 1 and is inserted through the cane shaft 1, and extends to the vicinity of the upper end of the cane shaft 1. Thereby, the link support member 9 can slide with respect to the cane shaft 1 together with the tubular member 3. The tubular member 3 and the link support member 9 correspond to specific examples of constituent elements of the “movable member” of the present invention.

  The tubular member 3 is urged downward with respect to the cane shaft 1 by a coil spring 29 that abuts on the upper end thereof. The coil spring 29 is a compression coil spring, and is arranged so as to surround the cane shaft 1 and to prevent movement in the axial direction with respect to the cane shaft 1. The upper end of the coil spring 29 is in contact with the lower end of the cylindrical body 31 fixed to the upper end portion of the cane shaft 1 so as to surround the cane shaft 1. The coil spring 29 is covered with the tubular body 25 so that the hand does not touch the coil spring 29. The tubular body 25 has an inner diameter that allows the tubular member 3 and the coil spring 29 to slide inward, so that the upper portion of the tubular member 3 is located on the inner side even when the leg 7 is fully opened. It extends downward in the axial direction. The upper end portion of the tubular body 25 is fixed to the upper end portion of the cane shaft 1 through, for example, the tubular body 31.

  Due to the elastic restoring force of the coil spring 29, the link support member 9 together with the tubular member 3 is urged downward with respect to the cane shaft 1. As a result, the leg 7 is urged in the direction of opening. In order to prevent the leg 7 from being excessively extended downward by the urging force of the coil spring 29 when the leg 7 is opened, the leg support member 5 is prevented from becoming difficult to make the cane shaft 1 independent. A cylindrical body 21 is disposed between the link support member 9 and the cane shaft 1 so as to be inserted therethrough. The cylindrical body 21 corresponds to a specific example of the second regulating member of the present invention. The tubular body 21 may or may not be fixed to the cane shaft 1.

  For example, by holding the grip portion 27 in one hand, holding the tubular member 3 in the other hand, and pulling the tubular member 3 upward along the cane shaft 1, the leg is resisted against the biasing force of the coil spring 29. The body 7 can be closed. A regulating member 11 is fixed to the tubular member 3 at a position above the link support member 9, and the leg body 7 comes into contact with the regulating member 11 when the leg is closed, so that the position, that is, the posture of the closed leg is determined. The closer the leg 7 is to the closed position, the closer the angle between the leg 7 and the link member 8 is to 180 degrees. Accordingly, the urging force of the coil spring 29 is transmitted through the link member 8 so that the force acting to open the leg 7 is weakened. However, as shown in FIG. 3, the restricting member 11 restricts the closed position of the leg 7 to the position where the urging force of the coil spring 29 is slight but still reaches the leg 7 and is naturally opened by the urging force. To do.

  The leg 7 has a ferromagnetic body 15 such as steel attached to the tip. The ferromagnetic body 15 is not permanently magnetized. Further, the regulating member 11 has a permanent magnet 13 attached to a portion that comes into contact with the ferromagnetic body 15 when the leg 7 is closed. For this reason, once the leg 7 is closed, the permanent magnet 13 and the ferromagnetic body 15 come into contact with each other and attract each other by magnetic force. Due to this magnetic attraction force, the leg 7 maintains the closed leg state against the biasing force of the coil spring 29. Since the ferromagnetic body 15 is attached to the tip of the leg 7, the magnetic attractive force between the permanent magnet 13 and the ferromagnetic body 15 acts effectively so as to maintain the closed leg of the leg 7. To do. Since the ferromagnetic body 15 that is not permanently magnetized is attached to the leg body 7, it is difficult for sand iron or the like such as the ground to be attracted to the ferromagnetic body 15 when the leg body 7 is opened. Benefits are gained.

  As an example, the permanent magnet 13 is inserted into a hole formed in the outer surface of the restricting member 11 and fixed by an adhesive. The regulating member 11 is made of, for example, plastic or wood. The leg body 7 is an aluminum long body having a “U” -shaped cross section as an example, and the ferromagnetic body 15 is inserted into a “U” -shaped groove and fixed to the leg body 7 with an adhesive or a screw. .

  The restricting member 11 has a substantially hexagonal columnar shape as an example, and the leg 7 abuts on the center portion of the flat outer surface. For this reason, for example, by holding the grip portion 27 in one hand, holding the tubular member 3 in the other hand, and slightly twisting the tubular member 3 with respect to the cane shaft 1 (that is, shifting in the circumferential direction), The contact state between the magnet 13 and the ferromagnetic body 15 is released. As a result, the magnetic attractive force rapidly decreases, and the leg 7 is opened by the biasing force of the coil spring 29. Thus, the cane 101 can open and close the leg 7 by simply operating the tubular member 3. Even if one of the three legs 7 is separated from the regulating member 11 due to contact with an obstacle on the road or the like, the magnetic attractive force is prevented so that the other legs 7 do not open. It is easy to strengthen the above to some extent.

  A mechanism for releasing the contact state between the permanent magnet 13 and the ferromagnetic body 15 by the twist applied to the tubular member 3 will be described with reference to FIG. FIG. 4 is a partial plan view of the cane 101 showing the operation of the regulating member 11. As shown in FIG. 4 (a), before the tubular member 3 is displaced in the circumferential direction around the shaft center 33 of the cane shaft 1, the permanent magnet 13 and the ferromagnetic material 15 come into contact with each other, and To exert a strong magnetic attraction. On the other hand, as shown in FIG. 4B, when the tubular member 3 is shifted around the axis 33 in the circumferential direction (counterclockwise in the example of FIG. 4B), the permanent magnet 13 is moved. The part of the regulating member 11 adjacent in the circumferential direction pushes the leg 7 outward in the radial direction of the cane shaft. This is because the part of the regulating member 11 that is adjacent to the permanent magnet 13 in the circumferential direction is closer to the cane shaft 1 than the circumference 35 around the axis 33 that passes through the contact part between the permanent magnet 13 and the ferromagnetic body 15. It originates in projecting radially outward. As a result, the contact state between the permanent magnet 13 and the ferromagnetic material 15 is released, and the mutual magnetic attractive force is rapidly weakened. In order to more effectively release the contact state between the permanent magnet 13 and the ferromagnetic body 15 by torsion of the tubular member 3, the leg support member 5 and the leg body 7 that support the leg body 7 are provided. Are connected in a form with relatively little play in the circumferential direction, whereas there is relatively little play in the circumferential direction between the link support member 9 and the link member 8 or between the link member 8 and the leg 7. It is desirable to be connected in a large form.

  As described above, in the cane 101, the leg 7 is maintained in the closed state by the magnetic attraction force between the permanent magnet 13 and the ferromagnetic body 15, so that it slightly opens when the leg is closed. The problem in the prior art is solved. Further, since the leg member 7 can be opened and closed simply by sliding or twisting the tubular member 3 with respect to the cane shaft 1, the opening and closing operation of the leg member 7 is simple. Further, since one link member 8 for opening and closing the leg body 7 is sufficient for each leg body 7, a mechanism for opening and closing the leg body is provided as compared with the conventional technique having two link members for each leg body. It is simple.

  FIG. 5 is a partial plan view showing the configuration and operation of the regulating member for a cane according to another embodiment of the present invention. In the cane 102 shown in FIG. 5 (a), the part of the restricting member 37 adjacent to the permanent magnet 13 in the circumferential direction, particularly in the clockwise direction in the figure, is larger than the restricting member 11 (FIG. 4). Projects outward in the radial direction of the shaft. On the other hand, in the cane 103 shown in FIG. 5B, the part of the restriction member 39 that is adjacent to the permanent magnet 13 in the clockwise direction in the figure is smaller than the restriction member 11 (FIG. 4). In addition, it projects outside the circumference 35 in the radial direction of the cane shaft. Also in these canes 102 and 103, the contact state between the permanent magnet 13 and the ferromagnetic body 15 can be released by shifting the tubular member 3 counterclockwise with respect to the cane shaft 1.

  FIG. 6 is a front partial cross-sectional view showing a configuration of a lower end portion of a cane according to still another embodiment of the present invention. In the cane 104, the buffer member 17 provided at the lower end of the cane shaft 51 is slidable with respect to the cane shaft 51, and is biased downward with respect to the cane shaft 51 by the coil spring 47. Thereby, when the cane 104 is used, the impact from the ground or the floor surface is further alleviated. This is because when the cane shaft 104 is strongly abutted against the ground or the like, the contact state between the permanent magnet 13 and the ferromagnetic material 15 is instantaneously released by the impact, and thereby the leg 7 is unnecessarily opened. It also helps prevent legging.

  In order to make the buffer member 17 slidable with respect to the cane shaft 51, in the example of FIG. 6, the bottomed tubular body 41 that receives the lower end portion of the cane shaft 51 and is slidable with the lower end portion The member 17 is fitted into a hole formed on the upper surface. A pair of elongated holes 43 extending in the axial direction are formed in the side walls of the lower end portion of the cane shaft 51 facing each other. One pin 45 penetrates the pair of long holes 43 in the radial direction together with the pair of through holes formed in the side wall portions of the cylindrical body 41 facing each other. As a result, the pin 45 held by the cylindrical body 41 and the buffer member 17 is slidably guided in the long hole 43. The coil spring 47 that urges the buffer member 17 in the downward direction of the cane shaft 51 has one end abutting on the lower surface of the leg support member 5 and the other end abutting on the upper end surface of the cylindrical body 41. It arrange | positions so that the axis | shaft 51 may be surrounded.

  FIG. 7 is a perspective view showing a configuration of a cane according to still another embodiment of the present invention. In the cane 101 shown in FIG. 1 and the like, the regulating member 11 is fixed to the tubular member 3. On the other hand, in the cane 105 shown in FIG. 7, the regulating member 65 is fixed to the cane shaft 1 instead of the tubular member 63. The restricting member 65 is a member such as a pin (not shown) penetrating an elongated hole 69 extending in the axial direction formed in the side wall of the tubular member 63 so as not to prevent the sliding of the tubular member 63 with respect to the cane shaft 1. Is fixed to the cane shaft 1.

  As shown in FIG. 7, the regulating member 65 may be formed in a substantially cylindrical shape. In this case, for example, the leg 7 in the closed-leg state can be opened by holding the gripping part in one hand and pushing the cane shaft 1 against the ground or floor surface with a strong force exceeding that during normal use. . As illustrated in FIG. 3, when the leg body 7 is in the closed leg state, the center of gravity thereof is located on the outer side in the radial direction of the cane shaft 1 with respect to the rotation shaft of the leg body support portion 5. For this reason, when the lower end of the cane shaft 1 is struck against the ground or the like, an impact force acts in the direction in which the leg 7 is opened. When the leg 7 is instantaneously separated from the restricting member 65 due to the impact force, the magnetic attractive force between the permanent magnet 13 and the ferromagnetic body 15 is rapidly reduced, so that the leg 7 is biased by the coil spring 29. Will open the leg.

  In the cane 101 shown in FIG. 1 and the like, the restricting member 11 can be formed in a substantially cylindrical shape, like the restricting member 65. On the other hand, the regulating member 65 shown in FIG. 7 may be formed in a substantially hexagonal column shape like the regulating member 11 (FIG. 4), or may be formed in the same shape as the regulating members 37 and 39 (FIG. 5). In that case, the regulating member 65 can be twisted in the circumferential direction with respect to the cane shaft 1, and if the force for twisting the regulating member 65 is released, the restoring force of the elastic member returns to the original position. It is possible to constitute a connecting portion between the regulating member 65 and the cane shaft 1. For example, it can be realized by configuring the connecting portion between the regulating member 65 and the cane shaft 1 by an elastic member such as rubber. By configuring the regulating member 65 in this way, for example, the regulating member 65 can be held by one hand and twisted in the circumferential direction with respect to the cane shaft 1 to open the leg 7 that is closed. It becomes possible.

  Instead of the tubular members 3 (for example, FIG. 1) and 63 (FIG. 7) used for the canes 101 and 105, other long bodies such as a plurality of rod-like bodies arranged outside the cane shaft 1 are adopted. Is also possible. Further, instead of the coil spring 29 (FIG. 2), other urging members such as an air spring may be employed. Further, instead of the coil spring 29, a tension coil spring that surrounds the cane shaft 1 is connected to the leg support member 5 and the link support member so that the leg support member 5 (for example, FIG. 1) and the link support member 9 attract each other. It is also possible to arrange the urging member at another part, such as between 9 and the like.

  In the canes 101 and 105, the permanent members 13 are provided on the regulating members 11 (for example, FIG. 1) and 65 (FIG. 7), and the ferromagnetic material 15 that is not permanently magnetized is provided on the legs 7. On the other hand, a ferromagnetic material that is not permanently magnetized may be disposed on the regulating members 11 (for example, FIG. 1) and 65 (FIG. 7), and a permanent magnet may be disposed on the leg body 7. Moreover, you may arrange | position a permanent magnet so that it may mutually attract | suck to both the control members 11 and 65 and the leg body 7. FIG.

  The canes 101 (for example, FIG. 1) and 105 (FIG. 7) had three legs. On the other hand, it may have four legs and may have two legs. When there are two legs, for example, the cane shaft 1 is supported by the two legs and the lower end of the cane shaft 1 in a state where the cane shaft 1 is slightly inclined from the vertical. Also good.

1 Cane shaft 3, 63 Tubular member (long body, movable member)
5 Leg Support Member 7 Leg 8 Link Member 9, 61 Link Support Member (Support Member, Movable Member)
11, 37, 39 Restriction member (first restriction member)
13, 15 Magnetic body 21 Cylindrical body (second regulating member)
25 Tubular body 29 Coil spring (biasing member)
35 Circumference 65 Restriction member (first restriction member)
101, 102, 103, 104, 105 cane

Claims (10)

A cane shaft,
A plurality of legs that open in the diagonally downward direction and close in the substantially upward direction by pivotally supporting each base end portion to the lower end portion of the cane shaft,
A movable member slidably provided on the cane shaft above the rotation shaft of the base end of each of the plurality of legs;
A plurality of link members each having one end at an intermediate portion between the base end portion and the tip end portion of each of the plurality of legs, and each other end pivotally supported by the movable member.
A biasing member that biases the movable member downward with respect to the cane shaft, thereby causing the plurality of legs to be opened, thereby enabling the cane shaft to become independent.
A restriction that is connected to the cane shaft or the movable member and abuts against the plurality of legs, thereby restricting the closed leg position of the legs to a position where the legs are naturally opened by the urging force of the urging member. A member, and
Each of the plurality of legs and the restricting member have a set of magnetic bodies at a contact portion with each other, and the sets of the magnetic bodies are attracted to each other by at least one being a magnet, thereby A cane that can hold the plurality of legs in the closed-leg position against the biasing force.   The restricting member can be twisted in the cane axis circumferential direction with respect to the cane axis, and a portion adjacent to at least one of the plurality of leg bodies is adjacent to at least one in the cane axis circumferential direction. The cane according to claim 1, wherein the cane protrudes outward in the radial direction of the cane axis from a circumference around the cane axis passing through the contact portion.   The cane according to claim 1 or 2, wherein when each of the plurality of legs is in the closed leg position, the center of gravity is located on the radially outer side of the cane shaft with respect to the pivot shaft of the base end portion. .   The cane according to any one of claims 1 to 3, wherein each of the plurality of legs is in contact with the restriction member at a distal end portion thereof.   5. The set of magnetic bodies according to claim 1, wherein the side of the restricting member is a magnet that is permanently magnetized, and each side of the plurality of legs is a ferromagnetic body that is not permanently magnetized. 6. Cane. The movable member is
A support member that pivotally supports the other end of each of the plurality of link members;
The said support member couple | bonds with a lower end part, and is arrange | positioned so that the periphery of the said cane axis | shaft is slidable, and has a elongate body extended to the vicinity of the upper end of a cane axis | shaft. Cane.   The cane according to claim 6, wherein the elongate body is tubular and is disposed so as to be inserted through the cane shaft.   The biasing member is a coil spring disposed around the cane shaft so as to surround the cane shaft, the upper end of which is regulated by the upper end portion of the cane shaft, and the lower end is attached to the upper end of the elongated body. The wand according to claim 6 or 7, wherein   The cane according to claim 8, further comprising a tubular body having an upper end connected to the upper end portion of the cane shaft and slidably covering the coil spring and the upper end of the elongated body.   The restricting member is a first restricting member, and the movable member is below the cane shaft beyond a predetermined position that allows the plurality of legs to open enough to allow the cane shaft to stand on its own. The cane according to any one of claims 1 to 9, further comprising a second regulating member that regulates the movable member so as not to move.

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