JP2013244304A - Stick with axial lever-operating type locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stick with an axial lever-operating type locking device.SOLUTION: A stick with an axial lever-operating type locking device includes: a gripping tube (200) which is cut open at both of right and left sides in a radial direction as cut-open parts (222) to independently form an upper arc-shaped gripping piece (220) and a lower arc-shaped gripping piece (230) each on the upper part and the lower part thereof, to both of the right and left sides of the upper arc-shaped gripping piece (220) and the lower arc-shaped gripping piece (230) of which depressing parts (224, 234) are extended outward and which is fixed to the end part of an upper connecting pipe (2); operation pins (300) which are assembled on both of the right and left side depressing parts (224, 234) facing to the upper arc-shaped gripping piece (220) and the lower arc-shaped gripping piece (230) each in a longitudinally piecing formation; and an axial lever (400) which has a depressing board (410) formed to be elongated in a longitudinal direction of the stick and a cum-type hinge part (420) formed on the end part of the depressing board 410 and connected to the upper projection end parts of the right and left operation pins (300) in a longitudinally turnable condition, with hinges.

Description

  The present invention relates to a cane equipped with an axial lever operation type locking device, and more specifically, the lock lever is arranged in the length direction of the cane, and a tightening force is applied from both the left and right sides of the connecting pipe in the radial direction. Thus, the present invention relates to a cane equipped with an axial lever operation type locking device that requires less operating force, increases locking force, and enables fine adjustment of the locking force.

  Generally, a cane is used as an auxiliary means for supporting a user's body, such as for mountain climbing, sports competitions, or for assisting walking of a patient. Such a cane has a configuration in which a handle is provided at an end of a pole. The pole is usually configured such that a plurality of connecting pipes are inserted and joined to each other, and can be expanded and contracted in the length direction by so-called “telescopic method” or “antenna method” during storage or use.

  The locking device for the cane is a mechanism that locks two adjacent connecting pipes in a state where the connecting pipe is extended or shortened. FIGS. A conventional lever-type locking device is shown which can be operated without delay.

  As shown in FIGS. 1 to 3, the conventional lever type locking device 10 is installed at the end of the upper connecting pipe 2 having a large diameter, and the grip ring 20 is narrowed by operating the cam lever 40. The lower connecting pipe 4 having a small diameter is fastened and fixed.

  The grip ring 20 of the locking device 10 is divided into upper and lower portions only by one in the circumferential direction by an incision portion 22, and extension plates 24 are formed on the upper and lower portions of the incision portion 22. The cam lever 40 is connected to the operating pin 30 by a hinge pin 50, and the cam surface 40 is formed on the cam lever 40.

  Such a locking device 10 will be described with reference to FIG. 3. When the cam lever 40 is pushed toward the grip ring 20, the operating pin 30 is pulled while the cam surface 42 rotates. The grip ring 20 is tightened while the lower extension plate 24 is pulled, and the lower connecting pipe 4 is pressurized and fixed.

  By the way, the conventional locking device 10 is configured such that the cam lever 40 rotates in the radial direction of the connecting pipes 2 and 4, and the shape of the cam lever 40 is bent along the arc shape of the connecting pipes 2 and 4. I must come from.

  For this reason, there is a limit to extending the entire length of the cam lever 40, and a sufficient locking force cannot be exerted, and a large force is required at the time of locking. Absent. In particular, as can be seen from FIG. 2, due to the positional relationship between the end point of the cam lever 40 and the hinge pin 50 and the point that the cam lever 40 has an arc shape, no locking force is transmitted even if the end of the cam lever 40 is pushed. Therefore, since the portion to be pushed to lock the cam lever 40 is formed at the intermediate point of the cam lever 40, the length acting as a heel becomes very short, and the effect of the heel which is an advantage of the lever type locking device is sufficiently obtained. I can't demonstrate it.

In addition, since only one of the gripping rings 20 is incised, and the gripping ring 20 is tightened only on the incised side, the force for pressurizing the lower connecting pipe 4 cannot act uniformly over the entire circumference. Moreover, since the length of the circular arc of the holding ring 20 is too long, the holding ring 20 is easily extended when the lower connecting pipe 4 is pressurized. Therefore, the grip ring 20 cannot be tightened strongly, and the lock force cannot be sufficiently applied, and the lock force is rapidly reduced by repeated use.
As can be seen from FIG. 3, when the cam lever 40 is locked, the contact point between the cam surface 42 and the extension plate 24 is far away from the center of the grip ring 20 in the radial direction. The pulling force is lost excessively before being transmitted to the grip ring 20.

JP 2011-240111 JP 2010-088871 JP 2005-278943

  The present invention is intended to solve the above-described conventional problems, and the object of the present invention is that a large operating force is not required, the locking force can be greatly increased, and durability for repeated use for a long time is also provided. It is an object of the present invention to provide a cane having an axial lever operation type lock device that can maintain the performance.

  Another object of the present invention is to enable fine adjustment of the locking force.

  In order to achieve the above-described object, a plurality of connecting pipes are stretchably coupled in the length direction, and the lower diameter part is inserted into the upper connecting pipe having a larger diameter among the plurality of connecting pipes so as to be stretchable in the axial direction. A cane that can lock or release the connecting tube, and the left and right sides in the radial direction are incised as incisions, and an upper arc-shaped gripping piece and a lower arc-shaped gripping piece are formed independently on the upper and lower parts, respectively, Gripping tubes with pressing portions extending outwardly on the left and right sides of each of the gripping piece and the lower arc-shaped gripping piece and fixed to the end of the upper connecting pipe; the upper arc-shaped gripping piece and the lower arc-shaped gripping piece face each other Actuating pins assembled in the form of vertically penetrating the pressing parts on both the left and right sides; a pressing plate extending in the length direction of the cane; and the left and right operating pins formed on the end of the pressing plate Rotates in the length direction of the cane at the upper protruding end Characterized in that it comprises an axial lever having a cam hinge portion hingedly coupled condition.

  A cane having an axial lever operation type locking device according to another direction of the present invention includes a plurality of connecting pipes that are elastically coupled in the length direction, and an axial direction of an upper connecting pipe having a large diameter among the plurality of connecting pipes. A cane that can lock or release a lower connecting pipe with a small diameter that is inserted in a telescopic manner, and a trunk that is coupled to an end of the upper connecting pipe, and is extended from the torso, and both the left and right sides in the radial direction are incised. The upper arc-shaped gripping piece and the lower arc-shaped gripping piece that are incised as parts and formed independently at the upper and lower parts, and the pressing parts that are extended to the left and right sides of the upper arc-shaped gripping piece and the lower arc-shaped gripping piece, respectively. A gripping tube in which a through-hole penetrating up and down the left and right pressing parts is formed; an operating pin inserted vertically into each of the through-holes of the pressing parts on both sides; and the length of the cane A pressing plate extending in the direction, and the pressing plate It is al extension, characterized in that it comprises an axial lever having a cam hinge portion hingedly coupled to be rotated in the longitudinal direction of the cane to the upper projecting end portion of the opposite sides of the actuating pin.

  The operating pin is inserted into the through hole of the pressing portion of the gripping tube so as to be slidable in the vertical direction. The upper pin is hinged to the upper end of the axial lever, and the operating pin is inserted into the through hole of the pressing portion from below upward. It is preferable that the adjusting pin is screwed to the upper pin and the head is engaged with the lower pressing portion.

  It is preferable that a loosening prevention tool for holding the outer periphery of the adjusting screw and preventing loosening is fixed and installed at the incision portion between the upper and lower pressing portions of the gripping tube.

  Here, the loosening prevention tool includes a base fixed to the upper surface of the lower pressing portion and a plurality of elastic pieces that are formed in the middle of the base and elastically pressurize the outer peripheral surface of the adjusting screw.

  Cutout grooves are formed on the left and right sides between the upper and lower arc-shaped gripping pieces and the body portion of the gripping tube.

  According to the cane having the axial lever operation type locking device according to the present invention, the axial lever is arranged in the length direction of the cane, and the length of the axial lever that acts as a hook is required. By extending the length, a high locking force can be obtained with a small force. In addition, the extension form of the axial lever is not bent in the direction in which the force is applied, and the force acting on the axial lever is completely transmitted to the gripping tube without any loss.

  The gripping tube is divided into two elements at the top and bottom by the upper arc-shaped gripping piece and the lower arc-shaped gripping piece, while the cam of the axial lever pulls the operating pin on both the left and right sides in the radial direction of the connecting pipe. The locking force is further increased, and the increased locking force acts uniformly on the entire outer peripheral surface of the connecting pipe in a balanced manner.

  In addition, the arc length of the upper arc-shaped gripping piece and the lower arc-shaped gripping piece that are in contact with the connecting pipe is reduced to about half of the conventional arc length. It can be increased sufficiently and the durability is greatly improved.

  In addition, since the operating pin and the pressing part are arranged on both sides in the radial direction of the connecting pipe, the cam surface rotates in the length direction of the cane, so that the point of action of the force is the central axis of the connecting pipe compared to the conventional case As a result, the locking force can be further increased and the pressing portion can be prevented from being deformed even if the locking force is increased.

  Further, since the length of the operating pin can be increased or decreased by screw connection of the upper pin and the adjusting screw, there is a convenience that the locking force can be adjusted as necessary.

It is the perspective view which showed the locking device of the conventional cane. It is the side view which showed the cancellation | release state of the conventional locking device of a cane. It is the side view which showed the locked state of the locking device of the conventional wand. It is a perspective view of the locking device of the cane concerning one example of the present invention. 1 is an exploded perspective view of a cane locking device according to an embodiment of the present invention. It is sectional drawing by the AA line of FIG. It is the figure which showed the cancellation | release state of the locking device of the cane concerning one Example of this invention. FIG. 8 is a side view of FIG. 7. It is the figure which showed the locked state of the locking device of the cane which concerns on one Example of this invention. FIG. 10 is a side view of FIG. 9. It is a figure showing an example of a cane to which a locking device concerning one example of the present invention is applied. It is the figure which showed the locking device which concerns on the other Example of this invention. It is the figure which showed the loosening prevention tool of FIG. 12 in detail. It is sectional drawing of the state assembled by applying the loosening prevention tool.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  As shown in FIGS. 4 to 6, in the cane of the present invention, the locking device 100 is installed at the end of the upper connecting pipe 2 having a large diameter, and the axial lever 400 of the locking device 100 is rotated. The lower connecting pipe 4 having a small diameter is fixed or released.

  The locking device 100 includes a grasping tube 200 in which the left and right sides in the radial direction are incised as incisions 222, and an upper arc-shaped gripping piece 220 and a lower arc-shaped gripping piece 230 are independently formed on the upper and lower parts, respectively, Actuating pins 300, 300 installed vertically through both sides of the shaped gripping piece 220 and the lower arc-shaped grasping piece 230, and an axial direction coupled to the working pins 300, 300 and rotating in the length direction of the cane A lever 400 is included.

  The upper arc-shaped gripping piece 220 and the lower arc-shaped gripping piece 230 of the gripping tube 200 are extended from the body portion 210, and the body portion 210 is coupled and fixed to the upper connecting pipe 2. Notch grooves 212 are formed on both the left and right sides between the body 210 and the arc-shaped gripping pieces 220 and 230, so that the arc-shaped gripping pieces 220 and 230 can expand and contract better.

  Pressing portions 224 and 234 are extended to the left and right sides of the upper arc-shaped gripping piece 220 and the lower arc-shaped gripping piece 230 of the gripping tube 200, and through holes 226 and 236 are formed in the pressing portions 224 and 234 in the vertical direction. Is done.

  The operating pin 300 is inserted into the through holes 226 and 236 of the pressing portions 224 and 234 from the lower side to the upper side, and the upper end portion protrudes above the upper pressing portion 224. A cam-shaped axial lever 400 is hinged to the protruding end of the operating pin 300. The operating pin 300 moves in the vertical direction in combination with the cam-type rotation of the axial lever 400, thereby tightening or unfastening the vertical pressing portions 224, 234.

  The operating pin 300 is preferably configured in such a manner that the lock force can be adjusted by changing the length. Therefore, the operating pin 300 may be divided into an upper pin 310 and an adjusting screw 320 and may be configured to be screwed together. The upper pin 310 and the adjustment screw 320 are coupled to the screw portion 314 (see FIG. 6) and the screw portion 322. When the entire length of the operating pin 300 is changed by adjusting the screw portions 314 and 322, the tightening amount of the pressing portions 224 and 234, that is, the tightening force is increased or decreased. The head 324 of the adjustment screw 320 is in close contact with the lower pressing portion 234. A washer 330 may be interposed between the head 324 of the adjustment screw 320 and the pressing portion 234.

  A hinge hole 312 for hinge coupling of the axial lever 400 is formed at the upper protruding end of the operating pin 300, that is, the protruding end of the upper pin 310.

  The axial lever 400 has a configuration in which the pressing plate 410 is extended in the length direction of the cane. The pressing plate 410 has an arc shape in cross section so as to be properly covered with the outer peripheral surface of the upper connecting pipe 2. A cam-type hinge part 420 is formed at the end of the pressing plate 410, a coupling hole 424 is formed in the cam-type hinge part 420, and a cam surface 422 is formed in a convex shape around the coupling hole 424.

  A hinge pin 340 is inserted into the coupling hole 424 of the cam-type hinge part 420 and the hinge hole 312 of the operating pin 300 so as to be slidable and rotatable. For assembly of the hinge pin 340, a fixing screw 350 may be fastened to a passing end portion of the hinge pin 340.

  The present invention configured as described above is a form in which the axial lever 400 is arranged in the length direction of the cane, and the length of the axial lever 400 acting as a heel can be extended as long as necessary. Since the extended form of the axial lever 400 is also a form extended straight in the axial direction without being bent in the acting direction of the force, the force acting on the axial lever 400 is completely transmitted to the arc-shaped gripping pieces 220 and 230. Therefore, it can be configured such that a woman or an elderly person can be locked or released without difficulty.

  In addition, the gripping tube 200 is divided into two semicircular elements up and down by the upper arc-shaped gripping piece 220 and the lower arc-shaped gripping piece 230, while the cam of the axial lever 400 moves the operating pin 300 on the left and right sides in the radial direction. Since the upper and lower arc-shaped gripping pieces 220 and 230 are pulled and tightened, the outer peripheral surface of the connecting pipe 4 can be pressed with a balanced and uniform force, and the locking force is further increased.

  In addition, the arc length of each of the upper arc-shaped gripping piece 220 and the lower arc-shaped gripping piece 230 in contact with the connecting pipe 4 is short (about half the conventional level) and does not easily extend even when a large locking force is applied. The force can be increased sufficiently and the durability is improved.

  In addition, the operating pin 300 and the pressing portions 224 and 234 are arranged on both sides in the radial direction, and the cam surface 422 rotates in the length direction of the cane, so that the action point of the force is the connecting pipe 2, The locking force can be further increased by being positioned closer to the central axis 4, and there is no possibility that the pressing portions 224 and 234 are deformed even if the locking force increases.

  Further, there is a convenience that the lock force can be adjusted by increasing or decreasing the length of the operating pin 300 by the screw connection of the upper pin 310 and the adjusting screw 320.

  7 to 10 are views showing a locked state and a released state of the cane according to the present invention. A method of locking and releasing the cane will be briefly described with reference to FIGS.

  First, as shown in FIGS. 7 and 8, when the axial lever 400 is lifted, the cam surface 422 of the cam type hinge part 420 is detached from the upper pressing part 224, so 224 and 234 are expanded as they are, and a gap is created between the upper and lower arc-shaped gripping pieces 220 and 230 and the lower connecting pipe 4 so that the lower connecting pipe 4 becomes free. The tube 4 can be pushed in or pulled out.

  7 and 8, when the axial lever 400 is rotated in the arrow direction (locking direction), the state shown in FIGS. 9 and 10 is obtained. That is, while rotating with the cam surface 422 of the axial lever 400 coinciding with the central axis of the operating pin 300, the operating pin 300 is pulled to narrow the upper and lower pressing portions 224 and 234, thereby the upper and lower arc-shaped gripping pieces 220, 230 presses and locks the periphery of the lower connecting pipe 4.

  FIG. 11 is a diagram showing a configuration example of a cane to which the lock according to the present invention is applied.

  As shown in FIG. 11, the cane is composed of a plurality of connecting pipes 2, 4, 6,..., And the adjacent connecting pipe having a large diameter is called an “upper connecting pipe”. The smaller one is called the “lower connecting pipe”.

  The cane may freely apply the locking device 100 according to the present invention to one or more points in the connecting portion of the connecting pipe. As shown in FIG. 11, when the connecting pipe has three stages, the locking device 100 of the present invention is applied to the upper and lower connecting pipes 2 and 4 of the first and second stages, and the upper connecting pipe of the second and third stages. A normal button type locking device 101 may be applied to the pipe 4 and the lower connecting pipe 6. Alternatively, the locking device 100 according to the present invention may be applied to any one of the first and second steps and the second and third steps.

  FIGS. 12 to 13 show a locking device according to another embodiment of the present invention, FIG. 12 is a perspective view, FIG. 13 is a drawing showing a loosening prevention device in detail, and FIG. 14 is a loosening device. It is sectional drawing of the state assembled by applying a prevention tool.

  The present embodiment is different from the above-described embodiment in the configuration of the operating pin 300, is different in that a loosening prevention tool 500 for holding the operating pin 300 is added, and the configuration of the coupling of the hinge pin 340 and the fixing pin 350a is different. . Since other configurations are the same as those of the above-described embodiment, detailed description thereof is omitted.

  The loosening prevention device 500 restrains the adjustment screw 320 screwed to the upper pin 310, so that the adjustment screw 320 is loosened due to vibration or the like during use, and the entire length of the operation pin 300 is contrary to the intention of the user. This is to prevent the phenomenon to be increased or decreased.

  As shown in FIG. 12, the loosening prevention device 500 is fixed to the upper surface of the lower pressing portion 234 of the gripping tube 200, and holds and restrains the outer peripheral surface of the adjusting screw 320 penetrating therethrough by an elastic force. Will come to do.

  At this time, a separate groove 326 may be formed on the outer periphery of the adjustment screw 320 so that the loosening prevention device 500 can be easily held.

  In this embodiment, the loosening prevention device 500 is fixed to the upper surface of the lower pressing portion 234 of the gripping tube 200. In this embodiment, both side surfaces of the loosening prevention device 500 are inserted on both sides of the lower pressing portion 234. A jaw 238 is formed.

  When the loosening prevention device 500 is applied as in the present embodiment, the adjustment screw 320 may not be provided with the washer 330 (see FIGS. 5 and 6).

  As shown in FIG. 13, the loosening prevention device 500 includes a base 510 and a plurality of elastic pieces 520 that are formed between the base 510 and elastically pressurize the outer peripheral surface of the adjusting screw 320. In order to provide the elastic force of the elastic piece 520, a notch hole 530 may be formed on one side of the elastic piece 520.

  According to this embodiment, as shown in FIG. 14, the plurality of elastic pieces 520 of the loosening prevention device 500 elastically pressurize the outer peripheral surface of the adjustment screw 320 screwed to the upper pin 310. Therefore, unless the adjustment screw 320 is adjusted by the user, a state where the adjustment screw 320 is adjusted to a predetermined length can be continuously maintained.

  On the other hand, the embodiment shown in FIGS. 12 and 14 has a configuration in which a fixing pin 350 a is forcibly press-fitted into a hinge pin 340 that hinges the upper pin 310 and the axial lever 400.

  5 and 6, the fixing screw 350 is screwed to the hinge pin 340 as described in FIGS. 5 and 6, but the hinge pin 340 is forcibly attached to the fixing pin 350 a instead of screwing. It shows that various configurations such as press-fitting and joining can be adopted.

  In the foregoing, there have been shown and described certain preferred embodiments of the invention. However, the present invention is not limited to the above-described embodiments, and any person having ordinary knowledge in the technical field to which the present invention belongs can be used without departing from the gist of the present invention claimed in the claims. Various modifications would be possible.

2: Upper connecting pipe 4: Lower connecting pipe 100: Locking device 200: Grasping tube 210: Body 212: Notch groove 220: Upper arc-shaped gripping piece 222: Cutting part 224, 234: Pressing part 226, 236: Through hole 230: Lower arc-shaped gripping piece 238: Insert jaw 300: Actuating pin 310: Upper pin 312: Hinge hole 314: Screw part 320: Adjustment screw 322: Screw part 324: Head part 326: Groove part 340: Hinge pin 350: Fixing screw 350a: Fixed pin 400: Axial lever 410: Press plate 420: Cam-type hinge 422: Cam surface 424: Connection hole 500: Loosening prevention tool 510: Base 520: Elastic piece 530: Notch hole

Claims (10)

A plurality of connecting pipes are connected to each other so as to expand and contract in the length direction, and a lower connecting pipe (4) having a small diameter inserted into an upper connecting pipe (2) having a large diameter among the plurality of connecting pipes so as to extend and contract in the axial direction. A cane that can be locked or released,
The left and right sides in the radial direction are incised as incisions (222), and an upper arc-shaped gripping piece (220) and a lower arc-shaped gripping piece (230) are independently formed on the upper and lower parts, respectively. ) And the lower arc-shaped gripping piece (230) on both the left and right sides thereof, the pressing portions (224, 234) are extended outwardly, and the gripping tube (200) fixed to the end of the upper connecting pipe (2);
An actuating pin (300) assembled in a vertically penetrating manner to the pressing portions (224, 234) on both the left and right sides of the upper arc-shaped gripping piece (220) and the lower arc-shaped gripping piece (230); A pressing plate (410) extended in the length direction, and formed in an end portion of the pressing plate (410) and rotated in the length direction of the cane at the upper projecting end portion of the left and right operation pins (300) A cane equipped with an axial lever-operated locking device, comprising an axial lever (400) having a cam-type hinge part (420) that is hinge-coupled in a state of being operated.   The operating pin (300) is slidably inserted vertically into the through hole (226) of the pressing portion (224, 234) of the gripping tube (200), and the axial lever (400) is hinged at the upper end. The upper pin (310) to be coupled and the through hole (226) of the pressing portion (224, 234) are inserted from below into the upper pin (310) and screwed, and the head (324) is pressed downward. The wand having an axial lever operation type locking device according to claim 1, comprising an adjusting screw (320) that is engaged with the portion (234).   In the incision part (222) between the upper and lower pressing parts (224, 234) of the gripping tube (200), the loosening prevention tool (500) for holding the outer periphery of the adjusting screw (320) and preventing the loosening. The cane comprising the axial lever operation type locking device according to claim 2, characterized in that is fixedly installed.   The loosening prevention tool (500) is formed between the base (510) fixed to the upper surface of the lower pressing portion (234) and the base (510) and elastically applies the outer peripheral surface of the adjusting screw (320). A cane comprising an axial lever-operated locking device according to claim 3, characterized in that it comprises a plurality of elastic pieces (520) for pressing.   A notch groove (212) is formed on the left and right sides between the upper and lower arc-shaped gripping pieces (220, 230) and the body portion (210) of the gripping tube (200). A cane comprising the axial lever operation type locking device according to item 1. A plurality of connecting pipes are connected to each other so as to expand and contract in the length direction, and a lower connecting pipe (4) having a small diameter inserted into an upper connecting pipe (2) having a large diameter among the plurality of connecting pipes so as to extend and contract in the axial direction. A cane that can be locked or released,
The body (210) coupled to the end of the upper connecting pipe (2), and extended from the body (210), the left and right sides in the radial direction are incised as incisions (222), and the upper and lower parts are independent of each other. The upper arc-shaped gripping piece (220) and the lower arc-shaped gripping piece (230) formed on the left and right sides of the upper arc-shaped gripping piece (220) and the lower arc-shaped gripping piece (230) are extended outwardly. A gripping tube (200) including through holes (226, 236) that includes (224, 234) and vertically penetrates the pressing portions (224, 234) on both the left and right sides;
An operating pin (300) inserted vertically in the through holes (226, 236) of the pressing portions (224, 234) on both sides; and a pressing plate (410) configured to extend in the length direction of the cane; A shaft having a cam-type hinge portion (420) which is extended from the pressing plate (410) and is hinged to the upper projecting ends of the operating pins (300) on both sides so as to be rotated in the length direction of the cane. A cane comprising an axial lever-operated locking device, characterized in that it comprises a directional lever (400).   The operating pin (300) is slidably inserted vertically into the through hole (226) of the pressing portion (224, 234) of the gripping tube (200), and the axial lever (400) is hinged at the upper end. The upper pin (310) to be coupled and the through hole (226) of the pressing portion (224, 234) are inserted upward from below to be screwed to the upper pin (310), and the head (324) is pressed downward. The wand having an axial lever operation type locking device according to claim 6, comprising an adjustment screw (320) that is engaged with the portion (234).   In the incision part (222) between the upper and lower pressing parts (224, 234) of the gripping tube (200), the loosening prevention tool (500) for holding the outer periphery of the adjusting screw (320) and preventing the loosening. The wand equipped with the axial lever operation type locking device according to claim 7, wherein is fixedly installed.   The loosening prevention tool (500) is formed between the base (510) fixed to the upper surface of the lower pressing portion (234) and the base (510) and elastically applies the outer peripheral surface of the adjusting screw (320). A cane comprising an axial lever-operated locking device according to claim 8, comprising a plurality of elastic pieces (520) for pressing.   A notch groove (212) is formed on the left and right sides between the upper and lower arc-shaped gripping pieces (220, 230) and the body portion (210) of the gripping tube (200). Item 7. A cane comprising the axial lever operation type locking device according to item 6.

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