JP2016101451A - Multipoint stick - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multipoint stick having a variable-length supporting leg.SOLUTION: A multipoint stick includes a stick body and multiple supporting legs positioned at a bottom end of the stick body. At least one of the supporting legs is of variable in length. The multipoint stick according to the present invention is configured such that the supporting leg is expandable relative to the stick body, and includes a fixing part to fix the supporting leg to the stick body at a position after expansion and contraction. The supporting legs having several lengths may be attached or detached to the stick body to vary the supporting leg in length. Alternatively, one of the supporting leg and the stick body may be provided with a projection and the other with two or more recesses in an axial direction. The projection may be fitted in the desired recess to vary the supporting leg in length.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a multi-point cane including a 3-point cane, a 4-point cane, and the like, and in particular, a multi-point cane for assisting walking when an elderly person who is anxious about a leg or a handicapped person who has a disability on a leg or leg. About.

Patent Document 1 discloses a walking assistance cane that can be used in a natural walking motion even when it has a plurality of support legs. In this cane, the support part is composed of four support leg parts, and each support leg part extends radially downward from the lower end part of the cane body part in a direction perpendicular to the axial direction. Each support leg has a rod member inserted into the guide portion so that its length can be expanded and contracted, and the degree of expansion and contraction is adjusted according to the load by a compression spring. Therefore, a cane is disclosed in which the support leg is maintained in a grounded state even when the cane body is tilted.
Japanese Patent No. 5120940

  However, the cane disclosed in Patent Document 1 improves the structure of the support legs in order to improve ease of use, but there is no description or suggestion regarding changing the length of the support legs. . When elderly people or people with disabilities use multi-point walking sticks, for those who have a narrow stride or who cannot move weight smoothly while walking, it is better to shorten the supporting legs when walking. Since the time required to move from the grounded state to the state where all the supporting legs are in contact with the ground is shortened, the grounding time of all the supporting legs is relatively long, so that walking in a stable state can be performed. Become.

  On the other hand, for example, when a handicapped person has started rehabilitation for a while, the support legs are lengthened so that the ground contact time of all the support legs is relatively shortened and the early start from the multipoint cane It is expected to escape.

  Then, this invention makes it a subject to provide the multipoint cane which can change the length of a support leg.

  In order to solve the above problems, a multipoint wand according to the present invention is a multipoint wand comprising a wand body and a plurality of support legs positioned at the lower end of the wand body, and at least one of the support legs has a length. Is variable.

  Here, the multipoint cane may be configured such that the support leg is extendable with respect to the cane body, and may include a support leg fixing unit that fixes the support leg and the cane body at a position after extension and contraction. . Moreover, this multipoint cane may change the length of a support leg by attaching / detaching the support leg from which a length differs with respect to a cane main body.

  In addition, this multipoint cane is supported by providing a convex portion on one of the support leg and the main body of the cane, providing two or more concave portions along the other axial direction, and fitting the convex portions to a desired concave portion. You may enable it to change the length of a leg.

  In addition, when changing the length of a support leg, a convex part is provided in a support leg, and at least 1 recessed part is provided in a cane body, and this convex part is fitted to a desired recessed part, and this convex part becomes a support leg. It may be located on the side or top surface.

  In addition, this multipoint cane may be provided with a rubber chip at the end portion of the support leg through a connecting portion including an elastic member passing through the hollow portion of the support leg and a twistback attached to the elastic member.

  In addition, this multipoint cane is provided with a threaded hole in the support leg and the cane body instead of providing a protrusion on one of the support leg and the cane body, and a screw such as a butterfly screw that is screwed into the hole. The support leg and the cane body may be coupled by

  Furthermore, in addition to a plurality of cane body holes for adjusting the length of the cane provided along the axial direction of the cane body, by providing several cane body holes in a direction orthogonal to the axial direction, the first cane You may enable it to rotate a 2nd cane main body with respect to the axial direction of a main body.

It is a schematic diagram of a three-point wand according to Embodiment 1 of the present invention. It is a figure which shows the modification of FIG. It is a schematic diagram of a three-point wand according to Embodiment 2 of the present invention. It is a schematic diagram of the 3-point wand which concerns on Embodiment 3 of this invention. It is a schematic diagram of the three-point wand which concerns on Embodiment 4 of this invention. It is a schematic diagram of a three-point wand according to Embodiment 5 of the present invention.

DESCRIPTION OF SYMBOLS 1 3-point wand 10 Holding part 20 1st cane body 21 Cane body fixing | fixed part 22a-22j Cane body hole 25 Cane body cap 30 2nd cane body 32, 33 Cane body button 34 Cane body spring 35 Spring engagement Toe 40 Third cane body 41 Support leg fixing part 50 Rear support leg 51a to 51c Rear support leg hole
52 button for rear support leg 54 spring for rear support leg 55 cap for rear support leg 60 inner support leg 61 hole for front support leg 62 button for front support leg 64 spring for front support leg 65 cap for front support leg 70 Outer support legs 71 Untwisted 72 First rubber 73 First stopper 74 First stick 80 Support plate 90a, 90b, 90c Rubber chip 92 Second rubber 93 Second stopper 94 Second stick

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the same part. In addition, the multipoint cane of this invention is not limited only to what was demonstrated by this embodiment.
(Embodiment 1)

  FIG. 1A is a schematic diagram of a three-point wand 1 that is a multipoint wand according to Embodiment 1 of the present invention. FIG.1 (b) is a top view of the part except the 1st cane main body 20 shown to Fig.1 (a). FIG.1 (c) is sectional drawing in the connection part 21 for cane bodies of Fig.1 (a). FIG.1 (d) is sectional drawing in the button 52 for rear part support legs in Fig.1 (a).

  The three-point wand 1 of the present embodiment includes first to third wand bodies 20, 30, 40, a support leg 50 connected to the third wand body 40, and a part of the third wand body 40, which will be described below. It is divided roughly into the supporting legs 60 and 70 which comprise.

  The first cane body 20 has a pipe shape in which an upper portion has a curved portion protruding to the left in FIG. 1A and a lower portion has a portion that hangs downward in FIG. At the upper end of the first cane body 20, a grip portion 10 by the user is provided.

  A pipe-shaped second cane body 30 is passed through the first cane body 20. As will be described later, the first cane body 20 and the second cane body 30 are connected to each other by a connecting part 21 for a cane body.

  The second cane body 30 is joined to the upper surface of the support plate 80, and the third cane body 40 is joined to the lower surface of the support plate 80. In the present embodiment, support legs 50, 60, and 70 are located at the tips of the third cane body 40.

  Rubber chips 90a, 90b, and 90c that are in contact with the ground are attached to the lower ends of the support legs 50, 60, and 70, respectively.

  Next, the configuration of each unit shown in FIGS. 1A to 1D will be described. First, the grip portion 10 can be made of a resin such as ABS resin in consideration of ease of gripping, or can be made of urethane in consideration of softness.

  When using the three-point cane 1 of the present embodiment, the three-point cane 1 is normally held in such a manner that the left side of FIG. In contrast to this, it is assumed that the right side of FIG. 1 (a) is the front side in the direction of travel of the user and the grip portion 10 is gripped. An aspect may be sufficient.

  The first cane body 20 can be made of, for example, aluminum, wood including bamboo and wood, magnesium, carbon resin, or the like. As described above, the upper portion of the first cane body 20 is curved. However, when the weight of the user who holds the grip portion 10 is supported, this balance of the center of gravity is good and the burden on the wrist is reduced. Because.

  The hanging portion of the first cane body 20 is provided with a plurality of cane body holes 22a to 22j along the axial direction thereof. The cane body holes 22a to 22j are for adjusting the length of the three-point cane 1. Here, the cane body holes 22a to 22j are provided so that the length of the cane can be adjusted in 10 steps. Yes.

  Similar to the first cane body 20, the second cane body 30 may be made of aluminum, magnesium, or carbon resin, for example. At the upper part of the second cane body 30, the cane body connecting portion 21 is located. The cane body connecting portion 21 includes a cane body hole 22a to 22j, a cane body button 32 fitted in any of the cane body holes 22a to 22j, and a cane for defining the position of the cane body button 32. A main body spring 34.

  The position where the cane body button 32 is fitted may be determined according to the height of the user. In other words, the length of the cane body can be changed by the cane body hole 22a and the like and the cane body button 32.

  FIG. 1C shows a state in which the cane body button 32 is fitted in the cane body hole 22j, but the cane body button 32 is fitted in any of the cane body holes 22a to 22j. Thus, the connection between the first cane body 20 and the second cane body 30 is achieved.

  In the present embodiment, an unexpected external force is applied to the cane body button 32 so that the connection between the first cane body 20 and the second cane body 30 is not released, as shown in FIG. ), A threaded portion is provided on the outer wall of the lower end portion of the second cane body 30, and a cap 25 for the cane body whose inner wall is threaded is screwed into the second cane body 20. The cane body 30 is tightened to maintain these connections. The cane body cap 25 may be made of, for example, aluminum, magnesium, or carbon resin.

  As shown in FIG. 1B, the inner support leg 60 and the outer support leg 70 are each branched at an angle of about 45 ° with respect to the axial direction of the rear support leg 50.

  In the present embodiment, the length of the rear support leg 50 can be adjusted. The rear support leg 50 is attached to one branch portion of the third cane body 40 so as to be extendable and contractible. And one of the branch parts of the 3rd cane main body 40 and the rear part support leg 50 are connected by the connection part 41 for support legs, as shown to Fig.1 (a).

  Here, the support leg connecting portion 41 includes rear support leg holes 51 a to 51 c provided in one of the branch portions of the third cane body 40, and a rear support leg button provided in the rear support leg 50. 52 and a rear support leg spring 54. The rear support leg holes 51a to 51c and the like are for adjusting the length of the rear support leg 50. Here, the length of the support leg can be adjusted in three stages.

  FIG. 1A shows a state in which the rear support leg button 52 is fitted in the rear support leg hole 51a. If the rear support leg button 52 is fitted into any of the rear support leg holes 51a to 51c, the connection between the rear support leg 50 and one of the branch portions of the third cane body 40 is achieved.

  It should be noted that an unexpected external force is applied to the rear support leg button 52, so that the connection between the rear support leg 50 and one of the branch portions of the third cane body 40 is not released. ), A threaded portion is provided on the outer wall of the lower end of one of the branch portions of the third cane body 40, and a rear support leg cap 55 whose inner wall is threaded is screwed into the third cane body. The rear support leg 50 is tightened by one of the branch portions of the cane body 40 to maintain the connection therebetween. For example, the rear support leg cap 55 may be made of aluminum, magnesium, or carbon resin.

  In the present embodiment, the rear support leg cap 55 is used to prevent the connection between the rear support leg 50 and one of the branch portions of the third cane body 40 from being released. When the cap 55 is not used, the rear support leg button 52 is pushed by an obstacle from the ground while the three-point cane 1 is in use, and one of the branch portions of the rear support leg 50 and the third cane body 40 is pressed. May be broken.

  In order to avoid this, the positions of the rear support leg holes 51a to 51c are arranged on one side surface or the upper surface of the branch part of the third cane body 40, and the position of the rear support leg button 52 is also changed to the rear part accordingly. You may provide in the side surface or upper surface of the support leg 50. FIG. In this case, the possibility that the above-described connection is released is reduced when the rear support leg button 52 is pushed by an obstacle from the ground.

  In the case of the second embodiment to be described later, there is a risk that the connection of the rear support leg button 52 is released as in the present embodiment, so that the rear support leg hole 51 is connected to the branch portion of the third cane body 40. The rear support leg button 52 may be provided on the side surface or the upper surface of the rear support leg 50.

  Further, as a configuration of the support leg connecting portion 41, for example, the rear support leg hole 51 is formed in one of the branch portions of the third cane body 40 in the axial direction of the rear support leg 50 instead of the rear support leg button 52. The connection can also be achieved by changing to a type that penetrates in a direction perpendicular to the direction and passing a screw such as a butterfly screw through the through hole.

  In this way, even if the rear support leg cap 55 is not used, there is no possibility that the connection between the rear support leg 50 and one of the branch portions of the third cane body 40 is disconnected due to an obstacle from the ground. .

  The support plate 80 has a substantially triangular shape as shown in FIG. 1B, and is a plate material made of aluminum, magnesium, carbon resin, or the like. The support plate 80 plays a role of successfully distributing the stress applied to the second cane body 30 to the third cane body 40 during use of the three-point cane 1.

  A hole for penetrating the second cane body 30 is provided at the center of the support plate 80, and is joined to the support plate 80 by welding or the like with the lower end of the second cane body 30 passed therethrough. The

  Note that the shape of the support plate 80 is not limited to a substantially triangular shape, and may be a rectangle, a square, or the like, and the thickness of the support plate 80 may be determined according to the material or the like.

  Further, the rubber chip 90 can be formed of a soft rubber portion and a spike pin-shaped hard rubber portion, for example, and has a substantially trapezoidal outer shape as shown in FIG. Yes. When viewed from the bottom, it has a circular outer shape, but is not limited thereto, and may be a hexagon or an octagon, for example.

  Next, a method for adjusting the lengths of the first cane body 20 and the second cane body 30 and a method for adjusting the length of the rear support leg 50 with respect to the third cane body 40 will be described. First, the cane body cap 25 that is screwed is rotated to release the screwed state.

  Next, the cane body button 32 that is fixed in a state of protruding from the cane body hole 22 j by the repulsive force of the cane body spring 34 is pressed down until it enters the inside of the first cane body 20. Thereby, since the connection state of the 1st cane body 20 and the 2nd cane body 30 is cancelled | released, after making the 1st cane body 20 and the 2nd cane body 30 slide and make required length, for cane bodies The button 32 may be fitted in a cane body hole located in the vicinity thereof. Then, the cane body cap 25 may be rotated and tightened.

  Similarly, to adjust the length of the rear support leg 50 with respect to the third cane body 40, first, the rear support leg cap 55 is rotated from the state shown in FIG. Next, by depressing the rear support leg button 52, the connection between the third cane body 40 and the rear support leg 50 is released, and then the third cane body 40 and the rear support leg 50 are slid to be required. After that, the rear support leg button 52 may be fitted into the rear support leg hole 51b or 51c located in the vicinity thereof. Then, the rear support leg cap 55 may be rotated and tightened.

  The material of the three-point cane 1 may be aluminum, magnesium, carbon resin, or the like, in order to meet demands for use, production, light weight, strength, and ease of processing. Generally, pipe materials such as aluminum alloy, magnesium alloy, and carbon resin are used. In the case of an aluminum alloy or the like, heat treatment may be performed to increase the strength. Specifically, for example, strength and durability may be improved by performing solution treatment, quenching treatment, and aging treatment.

  The support plate 80 may be an aluminum alloy plate having a thickness of 2.0 mm to 5.0 mm (for example, 3.0 mm).

  The cane body cap 25 and the rear support leg cap 55 may be made of plastic in addition to the excitation described above, and the cane body button 32 and the rear support leg button 52 may be made of brass, stainless steel, or the like. Good. The cane body spring 34 and the rear support leg spring 54 may be made of spring stainless steel.

  Regarding the dimensions of each part of the three-point wand 1, in the present embodiment, for example, the first wand body 20 has an outer shape of 20 mm to 25 mm (for example, 22 mm) and a thickness of 1.0 mm to 2.0 mm (for example, 1.5 mm). ).

  The second cane body 30 has an outer shape of 18 mm to 23 mm (for example, 19 mm) and a thickness of 1.0 mm to 2.0 mm (for example, 1.5 mm). The thickness may be 0 mm to 2.0 mm (for example, 19 mm) and the thickness may be 1.0 mm to 2.0 mm (for example, 1.5 mm).

  Further, the rear support leg 50 may be an aluminum alloy tube, a magnesium alloy tube, or a carbon resin tube having an outer shape of 14 mm to 18 mm (for example, 16 mm) and a thickness of 1.0 mm to 2.0 mm (for example, 1.5 mm). it can. The inner support leg 60 and the outer support leg 70 may be aluminum alloy tubes having the same outer shape and thickness as one of the branch portions of the third cane body 40.

  In the present embodiment, the front support legs 60 and 70 are different from the rear support legs 50 in that the lengths thereof are not changeable, and welding is performed similarly to one of the branch portions of the third cane body 40. To the lower surface of the support plate 80.

  FIG. 2A to FIG. 2B are diagrams showing modifications of FIG. 1A and correspond to FIG. 1A to FIG. 1B, respectively. FIG.2 (c) is a figure which shows another modification shown to Fig.1 (a), and is a figure corresponding to the enlarged view of the connection part 21 for cane main bodies of Fig.2 (a). FIG.2 (d) is sectional drawing in the connection part 21 for cane bodies of FIG.2 (c).

  In the three-point wand 1 shown in FIGS. 2A to 2B, a spring locking end 35 is added to the wand body spring 34. When the cane body spring 34 is locked to the spring locking end 35, when the cane body button 32 is pressed, the cane body spring 34 falls in the second cane body 30 or is displaced. Therefore, the cane body spring 34 can be reliably positioned.

  In the present embodiment, three types of connection methods having a relatively simple configuration have been disclosed as the cane body connecting portion 21 for connecting the first cane body 20 and the second cane body 30. For example, a method of connecting the first cane body 20 and the second cane body 30 with a butterfly screw, a method of connecting the first cane body 20 and the second cane body 30 with a through bolt, or the like is used. May be.

  Alternatively, as shown in FIG. 2 (c) or FIG. 2 (d), a pair of wand body buttons 32 and 33 may be used.

(Embodiment 2)
3 (a) to 3 (d) are schematic views of the three-point wand 1 according to Embodiment 2 of the present invention, and correspond to FIGS. 1 (a) to 1 (d), respectively. ing. FIG. 3E is a diagram showing the relationship between the third cane body 40 and the rear support leg 50.

  In the first embodiment, the multipoint cane that allows the user or the like to adjust the length of the rear support leg 50 has been described, but in this embodiment, several types of rear support legs 50 having different lengths are prepared, A multipoint cane will be described in which a user or the like selects one of the rear support legs 50 and connects the selected rear support leg 50 to one of the branch portions of the second cane body 30.

  Such a multipoint cane is suitable when the length of the support leg of the multipoint cane is not frequently changed. Specifically, it is suitable when a company that rents a cane to a hospital or the like prepares rear support legs 50 having different lengths of long, medium and short. For this reason, as shown in FIGS. 3A and 3B, the third cane body 40 is formed with only one rear support leg hole 51.

  FIG. 3E shows the rear support legs 50 having different lengths of long, medium and short. The length of each rear support leg 50 may be, for example, 140 mm, 110 mm, and 80 mm. Of course, more types of rear support legs, for example, lengths of every 10 mm may be prepared. Note that the outer dimensions and the like of the rear support leg 50 in this embodiment may be the same as those in the first embodiment.

  Next, a method for replacing the rear support leg 50 will be described. From the state shown in FIG. 3A, first, the screwed rear support leg cap 55 is rotated to release the screwed state. Next, the rear support leg button 52 is pressed down until it enters the inside of the branch portion of the second cane body 30.

  Thereby, since the connection between the rear support leg 50 and the third cane body 40 is released, the rear support leg 50 is pulled out from the third cane body 40, and the rear support leg 50 having a desired length is attached to the rear support leg button. 52 and the rear support leg hole 51 are aligned and inserted.

  When the rear support leg button 52 reaches the position of the rear support leg hole 51, the rear support leg button 52 fits into the rear support leg hole 51 by the repulsive force of the rear support leg spring 54. If the rear support leg cap 55 is rotated and tightened, the replacement of the rear support leg 50 is completed.

  3 shows the cane body connecting portion 21 having the same configuration as that of FIG. 1, the cane body connecting portion 21 having the configuration as shown in FIG. 2 may be adopted.

(Embodiment 3)
4 (a) to 4 (e) are schematic views of the three-point wand 1 according to Embodiment 3 of the present invention, and correspond to FIGS. 3 (a) to 3 (e), respectively.

  In the first and second embodiments, the three-point cane 1 in which only the rear support leg 50 can select the length of the support leg has been described, but in this embodiment, in addition to the rear support leg 50, the inner support leg 60 also has a support leg in advance. A three-point cane 1 capable of selecting the length will be described. In the case of the three-point wand 1 of the present embodiment, the inner support leg 60 can be shortened, so that there is an advantage that the user's foot can be prevented from coming into contact with the inner support leg 60.

  In the present embodiment, the length of the inner support leg 60 can be adjusted by the same method as that for adjusting the length of the rear support leg 50. However, the length adjustment method is not limited to this. Therefore, for example, in the case of the inner support leg 60, it is also possible to use the above-described butterfly screw or the like.

  In addition, it may replace with the inner side support leg 60, and you may enable it to select the length of the outer side support leg 70 with this. Further, instead of preparing several types of support legs in advance as in this embodiment, at least two of the rear support legs 50, the inner support legs 60, and the outer support legs 70 are branched from the second cane body 30. It is good also as a structure attached to a part elastically.

(Embodiment 4)
5 (a) to 5 (d) are schematic diagrams of the three-point wand 1 according to Embodiment 4 of the present invention, and correspond to FIGS. 1 (a) to 1 (d), respectively.

  The three-point wand 1 of the present embodiment is configured such that the second wand body 30 can be rotated every 90 ° with respect to the axial direction of the first wand body 20. That is, as shown in FIG. 5 (c), for example, four cane body holes, for example, cane body holes 22j2 to 22j4 are provided at 90 ° intervals on the same plane as the cane body hole 22j. ing.

  Thereby, the three-point cane 1 of this embodiment can also be used in the aspect in which the rear support leg 50 is on the front side in the direction of movement of the user, and the rear support leg 50 is on the rear side in the direction of movement of the user. It can also be used in an embodiment.

  In this embodiment, the example in which the four cane body holes 22j to 22j4 are provided on the same plane has been described. However, the number of the cane body holes is not limited to four, and may be two.

(Embodiment 5)
6 (a) to 6 (d) are schematic views of the three-point wand 1 according to Embodiment 5 of the present invention, and correspond to FIGS. 1 (a) to 1 (d), respectively. FIG. 6E is an enlarged view of the untwisted portion of the support leg. FIG. 6F shows an operation of pulling the support leg 70 and the rubber chip 71 and rotating the rubber chip 71.

  The three-point wand 1 of the present embodiment can be used effectively by providing the twist back 71 attached to the rubber chips 90a to 90c. The rubber chips 90a to 90c are worn out only when the portion that contacts the ground is worn when the three-point cane 1 is used. However, there is a problem in terms of safety in using the rubber chips 90a to 90c in this state. Etc. will be exchanged.

  However, in the case of partial reduction, when the rubber chip 90a or the like is rotated along its axis, the part that is not worn comes into contact with the ground, so that the replacement time of the rubber chip 90a or the like can be lengthened.

  First, the structure of the peripheral part of the twist back 71 is demonstrated. In the present embodiment, a twist back 71, a first rubber 72, and a first stopper 73 are disposed inside the support leg 50, and a second rubber pipe receiver 91 that receives the rubber chip 90a has a second inside. A rubber 92 and a second stopper 93 are disposed.

  The peripheral portion of the untwisted 71 is assembled prior to being disposed inside the support leg 50 and the rubber chip receiver 91. This assembly is performed as follows. In other words, first end of the first rubber 72 is passed through the hole formed in the center of the trapezoidal rubber material in a state where one end is passed through the upper part of the untwisted 71. Thereafter, both ends of the first rubber 72 are connected in such a manner that a first stopper 73 larger than the diameter of the hole is incorporated.

  On the other hand, both ends of the second rubber 92 are passed through a hole formed at the center of the trapezoidal rubber material in a state where one end is passed through the lower side portion of the untwisted 71. And the both ends of the 2nd rubber | gum 92 are tied in the aspect which incorporates the 2nd stopper 93 larger than the diameter of the said hole.

  Thereafter, the rubber material on the second stopper 93 side is press-fitted into the support leg 70, and the rubber material on the first stopper 73 side is also press-fitted into the rubber chip 90. As a result, the support leg 50 and the rubber chip receiver 91 are connected by the tension of the first rubber 72 and the second rubber 92 in a manner as shown in FIG.

  When the rubber chip 90c is rotated, as shown in FIG. 6 (f), the rubber chip 90 is gripped and moved away from the support leg 50, and in this state, the rubber chip 90c and the support leg 70 are mutually desired. It is only necessary to rotate the angle.

  At this time, if the untwisted 71 does not exist, the first rubber 72 and the second rubber 92 are twisted by the rotation of the rubber chip 90c, so that the first rubber is eliminated so that the twist is eliminated. 72 and the second rubber 92 try to return to the original state. As a result, the rotational position of the rubber chip 90c is also restored.

  However, in the present embodiment, it is possible to avoid a situation where the rotational position of the rubber chip 90c is restored due to the presence of the twist back 71. The untwisting 71 referred to here can eliminate the twist of the first rubber 72 and the second rubber 92 while avoiding the rotation of the support leg 70 and the rubber chip 90c to which the first rubber 72 and the second rubber 92 are connected. This is a generic name and is not limited to the shape, structure, and mechanism shown in FIG.

  In addition, since the untwisted 71 is installed in a narrow space inside the lower end of the support leg, if the dimensions are small, for example, the total length is about 1.5 cm, and the material is made of stainless steel or engineering plastic, etc. Good.

Further, instead of the second rubber 92 shown in FIG. 6 (e), for example, the untwisted 71 and the rubber chip 90 may be connected by an inelastic wire or hook. On the contrary, an inelastic wire or hook may be used instead of the first rubber 72 used to connect the untwisted 71 and the support leg.

Claims (6)

  A multipoint wand comprising a wand body and a plurality of support legs positioned at a lower end of the wand body, wherein at least one of the support legs is variable in length.   The multipoint cane according to claim 1, wherein the support leg is configured to be extendable and contractable with respect to the cane body, and includes a fixing portion that fixes the support leg and the cane body at a position after extension and contraction.   The multipoint cane of Claim 1 which changes the length of the said support leg by attaching or detaching the support leg from which the length differs with respect to the said cane body.   A convex portion is provided on one of the support leg and the cane body, and two or more concave portions are provided along the other axial direction, and the convex portion is fitted into a desired concave portion, thereby reducing the length of the support leg. The multipoint cane according to claim 1 to be changed.   A multi-point wand that changes the length of the support leg by providing a convex portion on the support leg and providing one or more concave portions on the cane body, and fitting the convex portion to the desired concave portion, The multipoint cane according to claim 1, wherein the convex portion is located on a side surface or an upper surface of the support leg. The rubber chip is connected to the end portion of the support leg in a manner in which the rubber chip is positioned via a connecting portion including an elastic member locked to the hollow portion of the support leg and a twistback attached to the elastic member. The multipoint cane according to claim 1.

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