JP2020022609A - Cane - Google Patents

Abstract

To provide a cane in which a first cane and a second cane are integrated and used as one cane and in which the first cane and the second cane are separated and used as two canes.SOLUTION: A first grip 31 is fitted in the upper end of a first shaft 21, with a first cap 41 fitted to the lower end of the first shaft, while a second grip 32 is fitted in the upper end of a second shaft 22, with a second cap 42 fitted to the lower end of the second shaft. A first main plane part 21c, a first upper plane part 31a, and a first lower plane part 41a of the first cane 11 are opposingly joined to a second main plane part, a second upper plane part and a second lower plane part of the second cane 12 respectively, and are fastened with a hook-and-loop fastener 51, so that the first cane and the second cane can be integrally constituted. By engagement of a first rugged part 31c of the first upper plane part of the first grip with a second rugged part 32c of the second upper plane part of the second grip, the first upper plane part and the second upper plane part are closely adhered to each other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cane that can be used as one cane by combining a first cane and a second cane, and that can be used as two canes by separating a first cane and a second cane. Specifically, when walking on a flat road such as asphalt, the first cane and the second cane can be combined to be used as one cane, and irregular terrain such as a gravel road or a slope can be used as the first and second canes. The present invention relates to a cane that can be used as two canes when walking while keeping balance with each of the left and right hands.

  Conventionally, a left-handed cane having a grip portion, a main body portion, and a ground contact portion, and a right-handed cane provided with a grip portion, a main body portion, and a ground contact portion of the left-hand cane arranged symmetrically, one hand for walking A two-handed cane is disclosed (for example, refer to Patent Document 1 (Claim 1, paragraph [0009], FIG. 1)). In this one-handed double-handed wand, first magnet portions having different polarities are provided inside the grip portions of the left-hand wand and the right-hand wand, respectively, and mutually different-polarity first magnet portions are provided inside the grounding portions of the left-hand wand and the right-hand wand. Second magnet units are provided, respectively. In addition, a convex portion is provided on one of the first magnet portions of the left-hand wand or the right-hand cane, and the convex portion is fitted on the other first magnet portion of the left-hand cane or the right-hand cane. Is provided with a concave portion.

  In the one-handed double-handed cane configured as described above, the connection when the left-handed cane and the right-handed cane are combined into one can be strengthened, so that it can be used not only for transportation and storage, but also as a one-handed cane for walking. . Further, since the convex portion and the concave portion of the first magnet are fitted at the grip portions of the left-hand wand and the right-hand wand, the left-hand wand and the right-hand wand can be positioned when they are combined into one. Since the second magnet is surface-bonded at the grounding portions of the walking stick and the right-hand walking stick, the walking stick can be united even if the secular change occurs due to use.

  On the other hand, a two-handed wand configured to be connectable by attaching a detachable connecting tool is disclosed (for example, Patent Document 2 (Claim 1, [Solution Means] in the abstract, paragraphs [0008], [0008] 0009], [0021], and FIGS. 1 and 2). In this two-handed cane, each of the left and right canes has a grip portion fixed to the upper end of each main body, and a rubber tip worn on the lower end of each main body. In addition, a connecting part convex part and a connecting part concave part are respectively attached near the upper end and the lower end inside each body of the left cane and the right cane, and a strong spring is used so that the connecting part does not come off during use. A snap button structure with a stop is used. The two-handed wands, such as those that are connected by unevenness, those that are hooked and connected, magic tape (registered trademark, the same applies hereinafter), magnets, and those that are connected together by tying together, can be combined so as not to leave the stick for both hands. Those that can be easily connected and separated and have no trouble in handling are used. Further, one of the iron piece and the magic tape may be attached to the tip of the projecting portion of the connecting member convex portion, and the other of the magnet and the magic tape may be attached to the bottom of the concave portion of the connecting member concave portion.

  With the two-handed cane configured as described above, when a person who walks with the canes in each hand performs an action other than walking, the canes are easily bundled and easily held by connecting the canes with the connector. And easy to handle. Further, even when it is necessary to walk with two wands in one hand for a short time, the wands can be used as one wand by connecting the wands with a connecting tool.

Utility Model Registration No. 3122709 JP-A-11-127927

  However, in a state where the left-handed cane and the right-handed cane are combined into one, for example, when a force in a direction parallel to the mating surface of the left-handed cane and the right-handed cane is applied to the ground portion of the left-handed cane, the convex portion and There has been a problem that the grounding portion of the left-handed wand rotates in the direction in which it slides with respect to the grounded portion of the right-handed wand around the fitting portion of the concave portion, and these grounding portions are unintentionally separated. Further, in the one-handed double-handed cane shown in the conventional patent document 1, the one-handed two-handed cane shown in the conventional patent document 1 is a state in which the left-handed cane and the right-handed cane are combined into one, For example, when a force is applied to the ground contact portion of the left-hand wand in a direction away from the ground contact portion of the right-hand wand, the left-hand wand and the right-hand wand may be unintentionally separated. Furthermore, in the one-handed double-handed cane shown in the above-mentioned conventional patent document 1, the left-handed cane and the right-handed cane are separated from the state in which the left-handed cane and the right-handed cane are combined into one, If it is held, there is also a problem that the thickness of the grip portion becomes almost half and the user feels uncomfortable.

  On the other hand, in the two-handed wand shown in the above-mentioned conventional Patent Document 2, when the connecting tool is a snap button structure or a magnet, the left wand and the right wand are combined into one, for example, with the rubber tip of the left wand. When a force is applied in a direction to separate the rubber tip of the right cane from the left cane, the left cane and the right cane are unintentionally separated. Further, in the two-handed cane disclosed in the above-mentioned conventional patent document 2, when the left cane and the right cane are separated from a state where they are combined into one, and the left and right canes are held by the left and right hands, respectively, There is also a problem that the thickness becomes almost half and the user feels strange.

  A first object of the present invention is to provide, in a state where a first cane and a second cane are united, a direction parallel to a first lower plane portion and a second lower plane portion on one of a first cap and a second cap. An object of the present invention is to provide a wand capable of preventing the first cap and the second cap from being unintentionally separated from each other in the first lower plane portion and the second lower plane portion even when the force is applied. A second object of the present invention is to provide a first wand and a second wand that are intended even if a force is applied in a direction in which the first and second caps are separated from each other in a state where the first and second wands are united. An object of the present invention is to provide a walking stick that can prevent separation without being performed. A third object of the present invention is to separate the first cane and the second cane from the united state and hold the first grip of the first cane and the second grip of the second cane with the right and left hands, respectively. The thickness of each of the first grip and the second grip is not extremely thin as compared with the thickness of the grip when the first and second canes are united, so that the user hardly feels uncomfortable, and An object of the present invention is to provide a cane in which the uneven portion and the second uneven portion can exhibit a slip-preventing function. A fourth object of the present invention is to allow the first shaft and the second shaft to expand and contract in steps, respectively, whereby the total length of the first cane and the second cane can be respectively adjusted according to the height and usage of the user. To provide a cane.

  A first aspect of the present invention is directed to a first shaft 21 having a first main plane portion 21c extending in a longitudinal direction formed on an outer peripheral surface, as shown in FIGS. A first grip 31 fitted on the upper end of the first shaft 21 and having a first upper flat surface portion 31a formed on the outer peripheral surface thereof and connected to the first main flat surface portion 21c; A first cane 11 having a first cap 41 having a first lower flat portion 41a connected to the flat portion 21c, and a second shaft 22 having a second main flat portion 22c extending in the longitudinal direction on the outer peripheral surface. A second grip 32 which is fitted on the upper end of the second shaft 22 and has a second upper flat surface portion 32a formed on the outer peripheral surface thereof and which is continuous with the second main flat surface portion 22c; A second row connected to the second main plane portion 22c A second cane 12 having a second cap 42 having a flat portion 42a formed therein, and the first main flat portion 21c, the first upper flat portion 31a, and the first lower flat portion 41a of the first cane 11 The cane 12 is fixed by the hook-and-loop fastener 51 or a permanent magnet or a hook in a state in which the cane 12 is opposed to the second main plane 22c, the second upper plane 32a, and the second lower plane 42a. And the second cane 12 are configured to be able to be combined with each other. The first unevenness portion 31c is formed on the first upper flat portion 31a of the first grip 31, and the second upper flat portion of the second grip 32 is provided. A second uneven portion 32c is formed on the second uneven portion 32a, and the first upper uneven portion 31c and the second uneven portion 32c are fitted to each other so that the first upper flat portion 31a and the second upper flat portion 32a are in close contact with each other. Features that have been To.

  The second aspect of the present invention is an invention based on the first aspect, and as shown in FIGS. 1, 6 and 7, the first lower flat portion 41a of the first cap 41 or the second cap A first cylindrical portion 41c or a second cylindrical portion into which the second cap 42 or the first cap can be inserted is protruded from the second lower plane portion.

  A third aspect of the present invention is an invention based on the first aspect. Further, as shown in FIGS. 1 to 5, the first uneven portion 31 c is provided on the first upper flat portion 31 a of the first grip 31. The concave ridge portions 31d and the convex ridge portions 31e extending in the vertical direction, the horizontal direction, or the oblique direction are formed alternately, and the second concave / convex portions 32c are formed on the second upper flat portion 32a of the second grip 32 in the vertical and horizontal directions. The concave ridge portions 32d and the convex ridge portions 32e extending in the direction or the oblique direction are formed alternately side by side, and the convex ridge portions 31e of the first concave and convex portions 31c are loosely inserted into the concave ridge portions 32d of the second concave and convex portions 32c. The first ridge portion 32c of the first rugged portion 32c is loosely inserted into the concave ridge portion 31d of the first rugged portion 31c, and the first rugged portion 31c and the second rugged portion 32c are fitted. The second upper flat portion 32a is configured to be in close contact with the second upper flat portion 32a. Characterized in that it has been.

  A fourth aspect of the present invention is an invention based on the first aspect. As shown in FIGS. 9 and 10, the first shaft 21 includes a hollow first outer portion 21a and a first outer portion 21a. A first inner portion 21b slidably housed in the portion 21a, the second shaft 22 having a hollow second outer portion 22a, and a second inner portion slidably housed in the second outer portion 22a. The first inner portion 21b is configured such that the length of projection of the first inner portion 21b from the first outer portion 21a can be changed stepwise by a first length adjusting mechanism 61, and the second outer portion of the second inner portion 22b is formed. The protruding length from the portion 22a can be changed stepwise by the second adjusting mechanism 62.

  The fifth aspect of the present invention is an invention based on the fourth aspect, and furthermore, as shown in FIGS. 9 and 10, a first length adjustment mechanism 61 is provided on the first outer portion 21a in the longitudinal direction. A plurality of first through-holes 61a formed with a gap, and a single first pin 61b built in the first inner portion 21b and selectively engageable with the plurality of first through-holes 61a, The second length adjusting mechanism 62 includes a plurality of second through holes 62a formed in the second outer portion 22a at intervals in the longitudinal direction, and a plurality of second through holes 62a built in the second inner portion 22b. And a single second pin 62b that can be selectively locked.

  In a wand according to a first aspect of the present invention, a first uneven portion is formed on a first upper flat portion of a first grip, and a second uneven portion is formed on a second upper flat portion of a second grip. Since the first upper flat portion and the second upper flat portion are in close contact with each other and the first cane and the second cane are united by fitting the portion and the second uneven portion, the first cane is formed. In a state in which the first and second canes are combined, for example, even if a force is applied to the first cap in a direction parallel to the first lower flat portion and the second lower flat portion, the first uneven portion and the second uneven portion may be connected to each other. Due to the fitting, the first cap does not slide with respect to the second cap in the first lower flat portion and the second lower flat portion. As a result, it is possible to prevent the first cap and the second cap from being unintentionally separated from each other in the first lower plane portion and the second lower plane portion. In addition, when the first and second canes are separated from the united state and the first and second grips of the first and second canes are respectively held by the left and right hands, the first grip is held by one hand. And the other hand grasps the outer peripheral surface of the second grip and the tip surfaces of the plurality of convex portions of the second uneven portion with the other hand. As a result, since the thickness of each of the first grip and the second grip does not become extremely thin as compared with the thickness of the grip when the first and second canes are united, the user hardly feels discomfort. In addition, the first uneven portion and the second uneven portion can exhibit the slip preventing function.

  In the stick according to the second aspect of the present invention, the first cylindrical portion or the second cylindrical portion into which the second cap or the first cap can be inserted into the first lower flat portion of the first cap or the second lower flat portion of the second cap. Since the tubular portion is protruded, after inserting the second cap or the first cap into the first tubular portion or the second tubular portion, the first uneven portion and the second uneven portion are fitted to each other. Even if a force in the direction of separating the first cap and the second cap is applied in a state where the first and second canes are united, the first cap and the second cap are separated from each other by a first cylindrical shape. Part or the second tubular part blocks. As a result, it is possible to prevent the first and second canes from separating unintentionally.

  In the wand according to the third aspect of the present invention, the first uneven portion is formed by alternately arranging concave and convex portions extending in the vertical, horizontal, or oblique directions on the first upper flat portion of the first grip. The second concavo-convex portion is formed in the second upper flat portion of the second grip by alternately arranging a concave portion and a convex portion extending in the vertical direction, the horizontal direction, or the oblique direction, and the convex portion of the first concave-convex portion. The portion is loosely inserted into the concave portion of the second uneven portion, the convex portion of the second uneven portion is loosely inserted into the concave portion of the first uneven portion, and the first uneven portion and the second uneven portion are fitted. Thus, since the first upper flat portion and the second upper flat portion are configured to be in close contact with each other, in a state where the first cane and the second cane are united, for example, the first lower flat portion and the first lower flat portion are attached to the first cap. Even when a force in the direction parallel to the lower plane portion is applied, the convex portion of the first concave and convex portion is loosely inserted into the concave portion of the second concave and convex portion. The convex ridge portion of the concave and convex portion is loosely inserted into the concave ridge portion of the first concave and convex portion, and the fitting of the concave ridge portion and convex ridge portion of the first concave and convex portion to the convex ridge portion and concave ridge portion of the second concave and convex portion. In some cases, the first cap does not slide with respect to the second cap in the first lower flat portion and the second lower flat portion. As a result, it is possible to prevent the first cap and the second cap from being unintentionally separated from each other in the first lower plane portion and the second lower plane portion. In addition, when the first and second canes are separated from the united state and the first and second grips of the first and second canes are respectively held by the left and right hands, the first grip is held by one hand. And the other hand grasps the outer peripheral surface of the second grip and the tip surfaces of the plurality of convex portions of the second uneven portion with the other hand. . As a result, since the thickness of each of the first grip and the second grip does not become extremely thin as compared with the thickness of the grip when the first and second canes are united, the user hardly feels discomfort. In addition, the first uneven portion and the second uneven portion can exhibit the function of preventing slippage.

  In the cane according to the fourth aspect of the present invention, the length of the first inner portion protruding from the first outer portion can be changed stepwise by the first length adjusting mechanism, and the length of the second inner portion from the second outer portion can be changed. Since the protruding length can be changed stepwise by the second adjusting mechanism, the total lengths of the first and second canes can be respectively adjusted according to the user's height and usage conditions.

  In the cane according to the fifth aspect of the present invention, the single first pin of the first inner portion is selectively locked in the plurality of first through holes of the first outer portion, thereby forming the first inner portion. The length of protrusion from the first outer portion can be changed stepwise, and the single second pin of the second inner portion is selectively locked to the plurality of second through holes of the second outer portion, The protrusion length of the second inner portion from the second outer portion can be changed stepwise. As a result, the total length of the first and second canes can be adjusted according to the user's height and usage.

(A) is a perspective view showing a state where the first cane and the second cane of the first embodiment of the present invention are united, and (b) is a state where the first cane and the second cane of the first embodiment of the present invention are separated. It is a perspective view showing a state. It is the front view which fractured the principal part which shows the state before and after fitting a 1st grip in the 1st shaft upper end of a 1st cane. It is the front view which fractured the principal part which shows the state before and after fitting a 2nd grip in the 2nd shaft upper end of a 2nd cane. FIG. 2 is a sectional view taken along line AA of FIG. 1. FIG. 2 is a sectional view taken along line BB of FIG. 1. It is a principal part perspective view which shows the state before and after inserting a 2nd cap into the cylindrical part of the 1st cap of the cane. It is a principal part sectional view which shows the state before and after inserting the 2nd cap into the cylindrical part of the 1st cap of the cane. (A) is a front view of the 2nd cane showing the state where the 2nd inner part was made to protrude most from the 2nd outer part, and (b) shows the state where the 2nd inner part was stored most in the 2nd outer part. It is a front view of a 2nd cane. (A) is a sectional view taken along line CC of FIG. 10, and (b) is a sectional view taken along line DD of FIG. 10. (A) is a sectional view taken along line EE of FIG. 9, and (b) is a sectional view taken along line FF of FIG. 9. (A) is a sectional view taken along line GG of FIG. 12, and (b) is a sectional view taken along line HH of FIG. 12. (A) is a sectional view taken along line II of FIG. 11, and (b) is a sectional view taken along line JJ of FIG. 11.

  Next, an embodiment for carrying out the present invention will be described with reference to the drawings.

<First embodiment>
As shown in FIG. 1, the cane 10 includes a first shaft 21, a first grip 31 fitted on an upper end of the first shaft 21, and a first cap 41 fitted on a lower end of the first shaft 21. A second wand having a first wand 11 having a second shaft 22, a second grip 32 fitted at an upper end of the second shaft 22, and a second cap 42 fitted at a lower end of the second shaft 22; 12 is provided. The first shaft 21 and the second shaft 22 are each formed in a substantially semi-cylindrical shape using a composite material of carbon fiber and epoxy resin, an aluminum alloy, a magnesium alloy, or the like. The first shaft 21 includes a hollow first outer portion 21a and a hollow first inner portion 21b slidably housed in the first outer portion 21a. The second shaft 22 includes a hollow first inner portion 21b. It comprises a second outer portion 22a and a hollow second inner portion 22b slidably housed in the second outer portion 22a (FIGS. 1, 9, and 10). The first outer portion 21a is formed in a semi-cylindrical shape, and the first inner portion 21b is formed in a semi-cylindrical shape slightly smaller than the first outer portion 21a (FIGS. 6 and 9). Thereby, the first inner portion 21b is slidably received in the first outer portion 21a. Further, the second outer portion 22a is formed in a semi-cylindrical shape, and the second inner portion 22b is formed in a semi-cylindrical shape slightly smaller than the second outer portion 22a. Thereby, the second inner part 22b is slidably received in the second outer part 22a.

  A first main plane portion 21c and a second main plane portion 22c extending in the longitudinal direction are formed on the outer peripheral surface of the first shaft 21 and the outer peripheral surface of the second shaft 22, respectively (FIGS. 1, 6, 9 and 9). (FIG. 10). The first shaft 21 and the second shaft 22 are made of a material having a low specific gravity and a high strength, such as a composite material of carbon fiber and epoxy resin, an aluminum alloy, a magnesium alloy, or the like, as described above. Even if the user combines the first shaft 21 and the second shaft 22 with each other, the user does not feel a sense of weight even when the first shaft 21 and the second shaft 22 are used with the left and right hands. They do not feel strong anxiety.

  On the other hand, the first grip 31 and the second grip 32 are made of polyamide resin (eg, nylon resin), ABS (acrylonitrile / butadiene / styrene) resin, polyester resin, polycarbonate resin, polyacetal resin, glass fiber reinforced resin, carbon fiber reinforced resin, A first upper flat portion 31a and a second upper flat portion 32a are respectively formed in an approximately T shape from an aluminum alloy, a magnesium alloy, or the like, and are connected to the first main flat portion 21c and the second main flat portion 22c on the outer peripheral surface. (FIGS. 1 to 4). On the lower surface of the first grip 31, a first upper hole 31b having a substantially half-moon cross section is formed, and on the lower surface of the second grip 32, a second upper hole 32b having a substantially half-moon cross section is formed (see FIG. 2 and FIG. 2). (Fig. 3). In addition, a first upper fitting portion 21 d having a smaller diameter than other portions of the first upper portion 21 a is formed at an upper end portion of the first upper portion 21 a of the first shaft 21, and the second upper portion 22 a of the second shaft 22 is formed. The upper end portion is formed in a second upper fitting portion 22d having a smaller diameter than other portions of the second upper portion 22a. The first grip 31 is attached to the first shaft 21 by fitting the first upper hole 31b into the first upper fitting portion 21d, and the second upper hole 32b is fitted to the second upper fitting portion 22d. The second grip 32 is attached to the second shaft 22. Although not shown, after attaching the first grip 31 to the first shaft 21, the first grip 31 is fixed to the first shaft 21 with a rivet, a screw, an adhesive, or the like to prevent the first grip 31 from coming off. After attaching the second grip 32 to the shaft 22, the second grip 32 is fixed to the second shaft 22 with a rivet, a screw, an adhesive, or the like to prevent removal.

  A first uneven portion 31c is formed on the first upper flat portion 31a of the first grip 31, and a second uneven portion 32c is formed on the second upper flat portion 32a of the second grip 32. ). The first uneven portion 31c has a concave portion 31d (concave portion) and a convex portion 31e (convex portion) extending vertically in a portion of the first upper flat portion 31a of the first grip 31 except for the outer peripheral edge and the lower portion. They are formed alternately side by side (FIGS. 4 and 5). The second uneven portion 32c includes a concave portion 32d (concave portion) and a convex portion 32e (concave portion) extending vertically in a portion of the second upper flat portion 32a of the second grip 32 except for the outer peripheral edge and the lower portion. ) Are alternately formed. On the other hand, the depth of the concave portion 31d of the first concave / convex portion 31c is formed to a depth capable of securing a predetermined thickness of the first grip 31, and the depth of the concave portion 32d of the second concave / convex portion 32c is Of a predetermined thickness. The height and thickness of the projection 31e of the first projection / recess 31c are slightly smaller than the depth and width of the recess 32d of the second projection / recess 32c, and the height of the projection 32e of the second projection / recess 32c is small. The thickness and the thickness are formed slightly smaller than the depth and width of the concave portion 31d of the first uneven portion 31c. Then, the convex portion 31e of the first concave-convex portion 31c is loosely inserted into the concave portion 32d of the second concave-convex portion 32, and the convex portion 32e of the second concave-convex portion 32c is loosely inserted into the concave portion 31d of the first concave-convex portion 31c. The first upper flat portion 31a and the second upper flat portion 32a are configured to be in close contact with each other by fitting the portion 31c and the second uneven portion 32c.

  The first cap 41 and the second cap 42 are made of polyamide resin (eg, nylon resin), ABS (acrylonitrile / butadiene / styrene) resin, polyester resin, polycarbonate resin, polyacetal resin, glass fiber reinforced resin, carbon fiber reinforced resin, hard rubber , An aluminum alloy, a magnesium alloy, or the like, is formed into a substantially U-shaped vertical section, and a first lower plane portion 41a and a second lower plane portion 42a continuous with the first main plane portion 21c and the second main plane portion 22c are formed on the outer peripheral surface. Each is formed (FIGS. 1, 6 and 7). A first lower hole 41b having a substantially half-moon cross section is formed on the upper surface of the first cap 41, and a second lower hole 42b having a substantially half-moon cross section is formed on the upper surface of the second cap 42 (FIG. 6). Then, by fitting the first lower hole 41b into the first inner portion 21b, the first cap 41 is attached to the first shaft 21, and the second lower hole 42b is fitted into the second inner portion 22b, so that the second lower hole 42b is fitted. The second cap 42 is attached to the second shaft 22 (FIGS. 6 and 7). Further, a first cylindrical portion 41c is protruded from the first lower flat portion 41a of the first cap 41. The first cylindrical portion 41c is formed in a semi-cylindrical shape into which the second cap 42 can be inserted (FIGS. 1, 6, and 7). Although not shown, after attaching the first cap 41 to the first shaft 21, the first cap 41 is fixed to the first shaft 21 with a rivet, a screw, an adhesive, or the like to prevent the second cap from being removed. After attaching the second cap 42 to the shaft 22, the second cap 42 is fixed to the second shaft 22 with a rivet, a screw, an adhesive, or the like to prevent removal.

  On the other hand, the first main flat portion 21c, the first upper flat portion 31, and the first lower flat portion 41a of the first cane 11 are connected to the second main flat portion 22c, the second upper flat portion 32a, and the second lower flat portion of the second cane 12. The first stick 11 and the second stick 12 are configured to be able to be united by being fixed with the hook-and-loop fastener 51 in a state where they are opposed to the flat part 42a, respectively (FIGS. 1, 9 and 10). In this embodiment, the hook-and-loop fastener 51 includes a sheet-type hook-and-loop fastener 52 that can tightly fix the first main flat portion 21c of the first shaft 21 and the second main flat portion 22c of the second shaft 22; 21 and a belt-type surface fastener 53 wound around and fixed to the upper part of the second shaft 22. The sheet-type surface fastener 52 includes a first belt-shaped sheet 52 a with a ring-shaped projection attached to a first main plane portion 21 c of a first outer portion 21 a of a first shaft 21, and a second outer portion 22 a of a second shaft 22. And a second belt-shaped sheet 52b with hook-like projections affixed to the second main plane portion 22c. When the ring-shaped projection of the first belt-shaped sheet 52a and the hook-shaped projection of the second belt-shaped sheet 52b are locked, the first outer portion 21a and the second outer portion 22a are brought into close contact with each other via the sheet-type surface fastener 52. Fixed. Although not shown, the belt-type surface fastener 53 is formed by affixing a first belt-shaped sheet with a ring-shaped projection and a second belt-shaped sheet with a hook-shaped projection back to back (FIGS. 1 and 8). . Then, the base end of the belt-type surface fastener 53 is wound around and fixed to the upper part of the first shaft 21, and the second main plane part 22 c of the second shaft 22 is attached to the first main plane part 21 c of the first shaft 21. After the belt-type surface fastener 53 is wound around the upper part of the second shaft 22 so as to face the hook-shaped protrusion or the ring-shaped protrusion at the distal end of the belt-type surface fastener 53, the ring-shaped protrusion at the base end of the belt-type surface fastener 53 is formed. The upper portions of the first shaft 21 and the second shaft 22 are fixed by the belt-type surface fastener 53 by engaging with the projections or hook-shaped projections.

  On the other hand, the length of the first inner portion 21b protruding from the first outer portion 21a can be changed stepwise by the first length adjusting mechanism 61, and the length of the second inner portion 22b protruding from the second outer portion 22a. The length is configured to be stepwise changeable by the second adjustment mechanism 62 (FIGS. 9 and 10). The first length adjusting mechanism 61 includes a plurality of first through holes 61a formed in the first outer portion 21a of the first shaft 21 at intervals in the longitudinal direction, and a plurality of first through holes 61a built in the first inner portion 21b. It has a single first pin 61b that can be selectively locked in one through hole 61a. The plurality of first through holes 61a are respectively formed on the curved surface on the opposite side to the first main plane portion 21c. The first pin 61b is removably inserted into the first through hole 61a and has a hemispherical tip, and a cylindrical first stopper having a larger diameter than the first through hole 61a at the base end of the first pin 61b. A first spring holding shaft 61d having a diameter smaller than that of the first stopper 61c protrudes from a plane of the first stopper 61c opposite to the first pin 61b. Further, near the upper end of the first inner portion 21b of the first shaft 21, when the first inner portion 21b is inserted into the first outer portion 21a and slid, the plurality of first through holes 61a are selectively formed. A single first through-hole 61e that matches and has the same diameter as the first through-hole 61a is formed, and the first compression coil spring 61f is loosely fitted to the first spring holding shaft 61d.

  The second length adjusting mechanism 62 includes a plurality of second through holes 62a formed in the second outer portion 22a of the second shaft 22 at intervals in the longitudinal direction, and a plurality of second through holes 62a built in the second inner portion 22b. It has a single second pin 62b that can be selectively locked in the two through holes 62a (FIGS. 9 and 10). The plurality of second through holes 62a are respectively formed on the curved surface on the opposite side to the second main plane portion 22c. The second pin 62b is removably inserted into the second through hole 62a and has a hemispherical tip, and a cylindrical second stopper having a larger diameter than the second through hole 62a at the base end of the second pin 62b. A second spring holding shaft 62d having a diameter smaller than that of the second stopper 62c protrudes from a plane of the second stopper 62c opposite to the second pin 62b. Further, in the vicinity of the upper end of the second inner portion 22b of the second shaft 22, when the second inner portion 22b is inserted into the second outer portion 22a and slid, the plurality of second through holes 62a are selectively formed. A single second through-hole 62e that matches and has the same diameter as the second through-hole 62a is formed, and the second compression coil spring 62f is loosely fitted to the second spring holding shaft 62d.

  A method of using the thus configured cane 10 will be described. Changing the state in which the first cane 11 and the second cane 12 are separated (FIG. 1B) to the state in which the first cane 11 and the second cane 12 are united (FIG. 1A) As shown in FIGS. 6A and 7A, the second cap 42 of the second cane 12 is inserted into the first cylindrical portion 41c of the first cap 41 of the first cane 11 from obliquely above. Next, the second grip 32 of the second cane 12 is brought closer to the first grip portion 31 of the first cane 11 (FIGS. 4A and 5A), and the first uneven portion 31c of the first grip 31 is moved. The second concave / convex portion 32c of the second grip 32 is fitted into the second grip 32 (FIGS. 4B and 5B). At this time, the sheet type affixed to the second outer portion 22a of the second shaft 22 is attached to the ring-shaped projection of the first belt-shaped sheet 52a of the sheet type surface fastener 52 affixed to the first outer portion 21a of the first shaft 21. Since the hook-shaped projections of the second belt-shaped sheet 52b of the hook-and-loop fastener 52 are locked, the first outer portion 21a of the first shaft 21 and the second outer portion 22a of the second shaft 22 are closely attached via the sheet-type hook-and-loop fastener 52. Fixed. Furthermore, after winding the belt-type surface fastener 53 whose base end is wound around the upper portion of the first shaft 21 and wound around the upper portion of the second shaft 22, a hook-like protrusion or a ring-shaped protrusion at the distal end of the belt-type surface fastener 53 is formed. The projection is engaged with a ring-shaped projection or hook-shaped projection at the base end of the belt-type surface fastener 53. Thereby, the upper portions of the first shaft 21 and the second shaft 22 are fixed by the belt-type surface fastener 53 (FIG. 1A).

  In a state where the first cane 11 and the second cane 12 are united, the first uneven portion 31c of the first grip 31 and the second uneven portion 32c of the second grip 32 are fitted, and the first upper flat portion 31a is Since the second upper flat portion 32a is in close contact with the first concave / convex portion, for example, even if a force in a direction parallel to the first lower flat portion 41a and the second lower flat portion 42a acts on the first cap 41, for example. Since the sheet-type surface fastener 52 and the belt-type surface fastener 53 fix the first shaft 21 and the second shaft 22 together, the first cap 41c is fitted. Does not slide with respect to the second cap 42 in the first lower flat portion 41a and the second lower flat portion 42a. As a result, it is possible to prevent the first cap 41 and the second cap 42 from being unintentionally separated from each other in the first lower plane part 41a and the second lower plane part 42a. Further, the second cap 42 is inserted into the first tubular portion 41c of the first cap 41, and the sheet-type surface fastener 52 and the belt-type surface fastener 53 are fixed in a state where the first shaft 21 and the second shaft 22 are united. Therefore, even if a force in the direction of separating the first cap 41 and the second cap 42 from each other acts, the first cylindrical portion 41c prevents the first cap 41 and the second cap 42 from separating from each other. . As a result, it is possible to prevent the first stick 11 and the second stick 12 from separating unintentionally.

  On the other hand, in order to change from the state in which the first cane 11 and the second cane 12 are united (FIG. 1A) to the state in which the first and second canes 11 and 12 are separated (FIG. 1B), The procedure is performed in the reverse order. When the first grip 31 of the first cane 11 and the second grip 32 of the second cane 12 are respectively gripped by the left and right hands, the outer peripheral surface of the first grip 31 and the plurality of first uneven portions 31c are grasped by one hand. And the other hand grasps the outer peripheral surface of the second grip 32 and the distal end surfaces of the plurality of convex portions 32e of the second uneven portion 32c. As a result, the thickness of each of the first grip 31 and the second grip 32 does not become extremely thin as compared with the thickness of the grip when the first cane 11 and the second cane 12 are united. The first uneven portion 31c and the second uneven portion 32c can exhibit the function of preventing slippage, respectively.

  On the other hand, in a state where the first cane 11 and the second cane 12 are united, the protruding length of the first inner portion 21b from the first outer portion 21a is changed stepwise by the first length adjusting mechanism 61, and the second To change the length of the inner portion 22b protruding from the second outer portion 22a in a stepwise manner by the second adjusting mechanism 62, first, as shown in FIGS. 9A and 10A, the first pin The first pin 61 b and the second pin 62 b are pushed into the first shaft 21 and the second shaft 22 by the finger 63. Next, in this state, the first inner portion 21b and the second inner portion 22b are simultaneously pushed into the first outer portion 21a and the second outer portion 22a in the directions indicated by the dashed arrows in FIG. At this time, since the tips of the first pin 61b and the second pin 62b are formed in a hemispherical shape, the first pin 61b and the second pin 62b come out of the first through hole 61a and the second through hole 62a, and The first inner portion 21b and the second inner portion 22b slide with respect to the first outer portion 21a and the second outer portion 22a. When the first pin 61b and the second pin 62b reach the positions facing the first and second through holes 61a and 62a adjacent to the first and second through holes 61a and 62a, respectively, The 1st pin 61b and the 2nd pin 62b are respectively inserted in the 1st through-hole 61a and the 2nd through-hole 62a which reached the position where they faced by the elastic force of the 1st compression coil spring 61f and the 2nd compression coil spring 62f.

  As described above, the single first pin 61b formed in the first inner portion 21b is selectively locked in the plurality of first through holes 61a formed in the first outer portion 21a, whereby the first The length of protrusion of the inner portion 21b from the first outer portion 21a can be changed in a stepwise manner, and a plurality of second through holes 62a formed in the second outer portion 22a are provided in a single hole formed in the second inner portion 22b. By selectively locking the second pin 62b, the protruding length of the second inner portion 22b from the second outer portion 22a can be changed stepwise. As a result, the total length of the first cane 11 and the second cane 12 can be adjusted according to the user's height and usage.

<Second embodiment>
FIG. 11 and FIG. 12 show a second embodiment of the present invention. 11 and 12, the same reference numerals as those in FIGS. 9 and 10 indicate the same parts. In this embodiment, a first U-shaped spring 81a is used as an elastic body that biases the first pin 61b of the first length adjusting mechanism 81 in the direction of inserting the first pin 61b into the first through hole 61e and the first through hole 61a. The second U-shaped spring 82a is used as an elastic body for urging the second pin 62b of the second length adjusting mechanism 82 in the direction of inserting the second pin 62b into the second through hole 62e and the second through hole 62a. The first U-shaped spring 81a is formed by bending a linear spring steel into a substantially U-shape and by bending one end of the first spring body 81b outward at a substantially right angle. And a formed first bent portion 81c. Then, the first U-shaped spring 81a is elastically deformed in a direction in which both ends thereof are separated from each other, so that the first bent portion 81c is inserted into the first insertion hole 81d formed at the center of the first stopper 61c. The other end of the spring body 81b is pressed against the inner surface of the first inner portion 21b, and the first pin 61b is urged in a direction to be inserted into the first through hole 61e and the first through hole 61a. Further, the second U-shaped spring 82a bends a second spring main body 82b formed by bending a linear spring steel into a substantially U-shape and one end of the second spring main body 82b outward at a substantially right angle. And a second bent portion 82c formed as a result. The second U-shaped spring 82a is elastically deformed in a direction in which both ends are separated from each other, so that the second bent portion 82c is inserted into the second insertion hole 82d formed in the center of the second stopper 62c, and the second spring The other end of the main body 82b is pressed against the inner surface of the second inner portion 22b, and is urged in the direction in which the second pin 62b is inserted into the second through hole 62e and the second through hole 62a. Except for the above, the configuration is the same as that of the first embodiment.

  In the cane configured as described above, in a state where the first cane 11 and the second cane 12 are united, the projecting length of the first inner portion 21b from the first outer portion 21a is stepped by the first length adjusting mechanism 81. In order to gradually change the length of the second inner portion 22b protruding from the second outer portion 22a by the second adjusting mechanism 82, first, as shown in FIGS. As shown, the first pin 61b and the second pin 62b are pushed into the first shaft 21 and the second shaft 22 with the finger 63. Next, in this state, the first inner portion 21b and the second inner portion 22b are simultaneously pushed into the first outer portion 21a and the second outer portion 22a in directions indicated by broken arrows in FIG. At this time, since the tips of the first pin 61b and the second pin 62b are formed in a hemispherical shape, the first pin 61b and the second pin 62b come out of the first through hole 61a and the second through hole 62a, and The first inner portion 21b and the second inner portion 22b slide with respect to the first outer portion 21a and the second outer portion 22a. When the first pin 61b and the second pin 62b reach a position facing the first through hole 61a and the second through hole 62a adjacent to the first through hole 61a and the second through hole 62a, respectively, The first U-shaped spring 81a and the second U-shaped 82a are inserted into the first through-hole 61a and the second through-hole 62a, respectively, at which the first pin 61b and the second pin 62b reach the above-described positions. Operations other than those described above are substantially the same as those in the first embodiment, and a repeated description thereof will be omitted.

  In the first and second embodiments, the first unevenness is obtained by alternately arranging the concave portions (concave portions) and the convex portions (convex portions) extending in the longitudinal direction on the first upper flat portion of the first grip. A second concave / convex portion is formed by alternately arranging a concave portion (concave ridge portion) and a convex portion (convex ridge portion) extending in the vertical direction on the second upper flat portion of the second grip. A first uneven portion is formed by alternately arranging a concave portion (concave portion) and a convex portion (convex portion) extending in the horizontal or oblique direction on the upper flat portion, and forming the first uneven portion on the second upper flat portion in the horizontal or oblique direction. The second concave / convex portion may be formed by alternately arranging concave portions (concave ridge portions) and convex portions (convex ridge portions) extending in the vertical direction. Alternatively, a columnar concave portion and a columnar convex portion may be formed on the first upper flat surface portion by a grid. The first irregularities are formed by alternately arranging them like eyes, and the second irregularities are formed. The columnar concave portion and the columnar convex portions to the plane portion may form a second uneven portion by arranging alternately a grid pattern. In the first and second embodiments, the first cylindrical portion into which the second cap can be inserted protrudes from the first lower flat portion of the first cap, but the second lower flat portion of the second cap. A second cylindrical portion into which the first cap can be inserted. In the first and second embodiments, the first shaft and the second shaft are seated while the first main plane of the first shaft is opposed to the second main plane of the second shaft. The first gripper is fixed by the mold surface fastener and the belt-type surface fastener, but the first uneven portion and the second uneven portion are fitted to each other so that the first upper flat portion and the second upper flat portion are in close contact with each other. You may fix with a fastener. Further, in the first and second embodiments, the first cane is fixed with the sheet-type hook-and-loop fastener and the belt-type hook-and-loop fastener in a state in which each flat portion of the first cane is opposed to each flat portion of the second cane. You may fix with a permanent magnet or a hook in the state where each flat part of the 1st cane was opposed to each flat part of the 2nd cane, and was combined.

DESCRIPTION OF SYMBOLS 10 Cane 11 1st cane 12 2nd cane 21 1st shaft 21a 1st outer part 21b 1st inner part 21c 1st main plane part 22 2nd shaft 22a 2nd outer part 22b 2nd inner part 22c 2nd main plane part 31 first grip 31a first upper flat portion 31c first uneven portion 31d concave portion (concave stripe portion) of first uneven portion
31e Convex part of the first concavo-convex part (projected ridge part)
32 second grip 32a second main plane portion 32c second uneven portion 32d concave portion (concave streak portion) of second uneven portion
32e Convex part of second concavo-convex part (projected ridge part)
41 1st cap 41a 1st lower flat part 41c 1st cylindrical part 42 2nd cap 42a 2nd lower flat part 51 Surface fastener 61,81 1st length adjustment mechanism 61a 1st through-hole 61b 1st pin 62,82 Second length adjusting mechanism 62a Second through hole 62b Second pin

Claims (5)

A first shaft having a first main flat portion extending in a longitudinal direction formed on an outer peripheral surface, and a first upper flat portion which is fitted to an upper end of the first shaft and is continuous with the first main flat portion formed on the outer peripheral surface. A first cane having a first grip, a first cap fitted to a lower end of the first shaft, and having a first lower flat surface portion formed on an outer peripheral surface thereof and connected to the first main flat surface portion; A second shaft formed with a second main plane portion extending to the second shaft; a second grip fitted on an upper end of the second shaft and having a second upper flat portion formed on an outer peripheral surface thereof and connected to the second main plane portion; A second cap having a second cap fitted on a lower end of the second shaft and having an outer peripheral surface formed with a second lower flat portion connected to the second main flat portion, wherein a first main member of the first cane is provided. The flat part, the first upper flat part and the first lower flat part are connected to the second cane. By fixing with a hook-and-loop fastener or a permanent magnet or a hook in a state where the second main plane part, the second upper plane part, and the second lower plane part are opposed to each other, the first cane and the second cane are separated from each other. A stick configured to be able to be combined,
A first uneven portion is formed on a first upper flat portion of the first grip,
A second uneven portion is formed on a second upper flat portion of the second grip,
A wand characterized in that the first uneven portion and the second uneven portion are fitted so that the first upper flat portion and the second upper flat portion are in close contact with each other.   A first tubular portion or a second tubular portion into which the second cap or the first cap can be inserted is protruded from a first lower flat portion of the first cap or a second lower flat portion of the second cap. The cane according to claim 1.   The first uneven portion is formed on the first upper flat portion of the first grip by alternately forming a concave portion and a convex portion extending in a vertical direction, a horizontal direction or an oblique direction, and the second uneven portion is A concave portion and a convex portion extending in a vertical direction, a horizontal direction or an oblique direction are alternately formed on a second upper flat portion of the second grip, and the convex portion of the first concave and convex portion is formed by the second concave and convex portions. The first uneven portion and the second uneven portion are fitted by loosely inserting the convex portion of the second uneven portion into the concave strip portion of the first uneven portion. The cane according to claim 1, wherein the first upper flat portion and the second upper flat portion are configured to be in close contact with each other.   The first shaft includes a hollow first outer portion and a first inner portion slidably housed in the first outer portion, and the second shaft includes a hollow second outer portion, A second inner portion slidably housed in the second outer portion, wherein a projection length of the first inner portion from the first outer portion can be changed stepwise by a first length adjusting mechanism. The cane according to claim 1, wherein the length of the second inner portion protruding from the second outer portion can be changed stepwise by a second adjusting mechanism.   The first length adjusting mechanism is configured to select one of a plurality of first through holes formed in the first outer portion at intervals in a longitudinal direction and a plurality of the first through holes built in the first inner portion. A plurality of second through holes formed in the second outer portion at intervals in a longitudinal direction, the plurality of second through holes being formed in the second outer portion, The cane according to claim 4, further comprising a single second pin built in the second inner portion and selectively engageable with the plurality of second through holes.

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