KR20200027893A - Apparatus for Adjusting Length - Google Patents

Abstract

The present invention relates to a length adjustment apparatus which comprises: a handle comprising a push button; a main pole coupled to the handle; an extension pole that draws in and out of the main pole; and a length adjusting means for adjusting the entire length by allowing the extension pole to be drawn in and out to the main pole, wherein the length adjusting means comprises: a load transmission means for transmitting the load of a push button; a spin pipe assembly fixedly installed inside the extension pole; and a clamp assembly to keep the spin pipe assembly locked or unlocked by pressing or depressurizing the spin pipe assembly to the outside. According to the present invention, the length expansion and contraction can be freely adjusted as desired through the push button.

Description

Length adjustment device {Apparatus for Adjusting Length}

The present invention relates to a length adjusting device, and more particularly, to a length adjusting device that can be conveniently used because the length can be freely adjusted.

In general, the climbing stick is designed to adjust the height.

Climbing refers to the act of training the mind and body by climbing a mountain and finding pleasure. Currently, it is used for leisure or sports, or climbing a dangerous mountain as a challenge to an unknown world. Climbing sticks have become an essential item for hikers in recent years due to the need to maintain body balance during hiking that does not support or have a uniform terrain. have.

This climbing stick goes beyond the role of a cane, and distributes a considerable amount of walking work that relies only on two legs to the arm, reducing the user's stamina and making walking speed faster and safer.

In other words, it is the first helper in safety hiking that maintains the user's balance on the uneven terrain of the trail and relieves the impact of the knee when descending. At this time, the length of the climbing stick is ideal when the angle of the elbow joint is 90 ° when standing while holding it, and it is recommended to use 10 to 15 cm long when climbing a slope or hill, and adjust the height according to the user's body according to various situations. It needs to be adjusted and used.

As a related art, patent document 1 is shown in FIG. 1, and the stick for climbing is a rubber pad so as to form a surface contact with a road surface when the stick is worn out, and at the same time absorb a shock force, and is provided at the bottom of the guide portion. (1), the lower pole (2c) to which the guide portion (1) is fixed is inserted or withdrawn into the upper pole (2a) and adjusted, and at the same time, the length provided to be tightened and fixed as a nut (2b) after adjustment is completed Adjusting means (2), and the horn (3) which is installed on the handle (5) fixed to one side of the upper pole (2a) and operated according to the presence or absence of connection of the pressing portion (3a) protruding outward of a predetermined part, It is decorated around the upper and lower poles 2a and 2c and includes a luminous band 4 provided for easy identification.

However, the prior art mountain climbing stick requires a lot of power to adjust the height, so operation is very cumbersome, and it is not easy to operate even for women and the elderly as well as for strong men, and it takes a lot of time. There is a problem in that it is inconvenient to stretch and fix only as much as the user wants, and thus, usability and convenience are poor.

Republic of Korea Registered Utility Model Publication No. 20-0219048 (April 02, 2001)

The present invention was created to solve the problems of the prior art as described above, and an object of the present invention is to provide a length adjusting device that can be conveniently used because the length can be freely adjusted.

Length adjustment device according to an aspect of the present invention, a handle including a push button; A main pole coupled to the handle; A kidney pole that draws in and out of the main pole; And length adjusting means for adjusting the entire length by allowing the extension pole to be drawn in and out of the main pole by the operation of the push button, and the length adjusting means is installed inside the main pole, and the pressing Load transmission means for transmitting the load of the button; A spin pipe assembly fixedly installed inside the extension pole; And a clamp assembly installed over a boundary between the main pole and the extension pole, and maintaining the locked or unlocked state of the spin pipe assembly by pressing or releasing the spin pipe assembly to the outside. Is done.

Specifically, the spin pipe assembly includes a spin cover pipe fixedly installed inside the extension pole; And it is accommodated in the interior of the spin cover pipe, and may include a spin pipe in which a groove of a round type is processed at a constant pitch on the inner circumferential surface.

Specifically, the spin pipe assembly, while maintaining a locked state by the clamp assembly, when the lock button is unlocked by the clamp assembly by pressing the push button, moves up and down together with the extension pole to extend the extension pole Can be drawn into and out of the main pole.

Specifically, the spin pipe is composed of a plurality, and the plurality of spin pipes includes one long spin pipe, a relatively short plurality of short spin pipes, and one last spin similar to the short spin pipe. It is made of a pipe, and may be inserted in the order of the long spin pipe, the short spin pipe, and the last spin pipe through one end of the spin cover pipe.

Specifically, the clamp assembly is installed inside the spin pipe, the main clamp to maintain the locked state by constraining the spin pipe, or to release the spin pipe to maintain the unlocked state; A clamp rod which is inserted into the main clamp and is connected to the load transmission means to receive a load due to a pressing operation of the push button and to be withdrawn from the main clamp; And when the load of the push button is released, it may include a clamp spring to maintain the state in which the clamp rod is drawn into the main clamp.

Specifically, the main clamp is a cylindrical shape having an entire hollow shape, a plurality of cut grooves are formed in a longitudinal direction from one end of the clamp body, and a plurality of fingers are formed by the cut grooves, A protrusion having a shape corresponding to the groove may be provided at each end of the plurality of fingers.

Specifically, the clamp rod, the body portion formed of a diameter corresponding to the hollow diameter of the main clamp; A head portion having a diameter larger than that of the body portion and moving the finger in a circumferential direction while being drawn into the finger so that the protrusion is caught in the groove; And a tail portion into which the clamp spring is inserted and connected to the load transmission means.

Specifically, the torso portion has a tapered shape that decreases in diameter as it goes toward the head portion, and the tapered portion of the torso portion may be a portion that is seated while the finger is retracted when the head portion is withdrawn from the finger.

Specifically, the load transmission means, is installed over the boundary between the handle and the main pole, the start rod assembly connected to the push button; And an action rod assembly installed inside the main pole and connecting the start rod assembly and the clamp assembly.

Specifically, the start rod assembly, the action rod assembly and the clamp assembly are connected in a straight line to form a fixed axis, the spin pipe assembly forms a flow axis, and the unlocking state by the clamp assembly is performed by pressing the push button. When the spin pipe assembly moves up and down along with the extension pole along the fixed axis, the extension pole may be drawn in and out of the main pole.

The length adjusting device according to the present invention can freely adjust the length extension and fixation as much as desired through a push button, and it is possible to finely adjust the length of the extension pole, increase the locking force, and soft and flexible against the ground when adjusting the length. It works.

In addition, the length adjusting device according to the present invention can be easily changed the entire length of the device by only one push button operation, and it is convenient because it can be easily fixed with a small force after stretching the device as much as desired, and the length adjustment is easy. It operates smoothly and smoothly, and can be quickly responded to and operated in various use environments, thereby having excellent usability and convenience.

1 is a perspective view of a conventional length adjusting device.
2 is an external perspective view when the length adjusting device according to an embodiment of the present invention is folded.
Figure 3 is a perspective view of the appearance when the length adjustment device according to an embodiment of the present invention.
4 is an exploded perspective view of a length adjusting device according to an embodiment of the present invention.
5 is an exploded perspective view of a handle according to the present invention.
6 is a cross-sectional view of the handle according to the invention.
7 is a partially exploded perspective view of the length adjusting means according to the present invention.
8 is another exploded perspective view of another length adjusting means according to the present invention.
9 is an exploded perspective view of the clamp assembly of the length adjusting means according to the present invention.
10 is a partial perspective view of a clamp assembly of a length adjusting means according to the present invention.
11 is a partial cross-sectional view of the spin pipe assembly of the length adjusting means according to the present invention.
12 is a cross-sectional view for explaining the operation of the length adjustment device according to an embodiment of the present invention.
13 is a cross-sectional view of a clamp assembly for explaining a locked state of a length adjusting device according to an embodiment of the present invention.
14 is a cross-sectional view of the clamp assembly for explaining the unlocked state of the length adjusting device according to an embodiment of the present invention.

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments associated with the accompanying drawings. It should be noted that in this specification, when adding reference numerals to components of each drawing, the same components have the same number as possible, even if they are displayed on different drawings. In addition, in the description of the present invention, when it is determined that detailed descriptions of related known technologies may unnecessarily obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

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

2 is an external perspective view when the length adjustment device according to an embodiment of the present invention is folded, FIG. 3 is an external perspective view when the length adjustment device according to an embodiment of the present invention is opened, and FIG. 4 is an embodiment of the present invention An exploded perspective view of a length adjusting device according to an example, FIG. 5 is an exploded perspective view of a handle according to the present invention, 6 is a cross-sectional view of a handle according to the present invention, and FIG. 7 is an exploded perspective view of a part of the length adjusting means according to the present invention. , FIG. 8 is an exploded perspective view of another part of the length adjusting means according to the present invention, FIG. 9 is an exploded perspective view of the clamp assembly of the length adjusting means according to the present invention, and FIG. 10 is an exploded perspective view of the length adjusting means according to the present invention. Partial perspective view, Figure 11 is a partial cross-sectional view of the spin pipe assembly of the length adjusting means according to the invention, Figure 12 is the operation of the length adjusting device according to an embodiment of the present invention 13 is a cross-sectional view of a clamp assembly for explaining a locked state of a length adjusting device according to an embodiment of the present invention, and FIG. 14 is unlocking a length adjusting device according to an embodiment of the present invention. It is a sectional view of the clamp assembly for explaining the state.

2 to 4, the length adjusting device 10 according to an embodiment of the present invention, the length of the expansion and contraction can be freely adjusted, which can be conveniently used, the handle 100, It may include a main pole 200, a first extension pole 300, a second extension pole 400, an end tip 500, a length adjustment means (600). Hereinafter, a case in which the length adjusting device 10 is a trekking pole will be described as an example, but is not limited thereto, such as height adjustment of a bicycle saddle, height adjustment of a desk leg, length adjustment of a handle of a travel bag, and the like. Of course, it can be used for various purposes for length adjustment.

In the length adjusting device 10, the first extension pole 300 may be drawn in and out of the main pole 200, and the second extension pole 400 may be drawn in and out of the first extension pole 300. In addition, the second extension pole can be stored folded into the interior of the main pole 200 in a state in which the first extension pole is drawn.

The handle 100 may be coupled to one end of the main pole 200 and may be referred to as an operation unit for operating the length adjusting means 600. The main pole 200 and the first extension pole 300 may be coupled by the first coupling member 250, and the first extension pole 300 and the second extension pole 400 are second coupling members 350 ), The second extension pole 400 and the end tip 500 may be coupled by a third coupling member 450.

In the above, the first coupling member 250, the other end of the main pole 200 and the first end of the first extension pole 300 can be coupled, the first extension pole 300 of the main pole 200 It may be configured not to deviate from the main pole 200 when drawing in and out.

The second coupling member 350 may combine the other end of the first extension pole 300 and one end of the second extension pole 400, and the second extension pole 400 may include the first extension pole 300. It can be configured to be fixed when fully withdrawn or withdrawn.

The third coupling member 450 may be configured to fix the end tip 500 to the other end of the second extension pole 400.

Each of the above-described first coupling member 250, second coupling member 350, and third coupling member 450 is, as a coupling means, not limited to those described above, but can be variously configured.

The handle 100 may be coupled to one end of the main pole 200 and may operate the length adjusting means 600 by manipulation.

5 and 6, the handle 100 includes a head body 110, a push button 120, a head silicone cover 130, a head top cover 140, a button spring 150, a head It may include a fixing pin 160, an E-ring 170, a switch lock 180, and a webbing strap 190.

The head body 110 may be referred to as a main frame of the handle 100, and may determine the overall shape of the handle 100. That is, the head body 110 may be formed to have a shape that serves as a handle function that allows the user to easily grip the upper surface is formed to be inclined toward the lower front to facilitate the user's grip.

Head body 110, the upper installation groove 111 is formed on the upper push button 120 is inserted and installed, the lower installation groove 112 is formed at the bottom of the start rod assembly of the length adjustment means 600 ( One end of 610 is inserted, and a withdrawal hole 113 is formed on one side, so that one end is withdrawn after the switch lock 180 is coupled to the head body 110, and a webbing groove 114 is formed on one side to form a webbing strap A portion of 190 is inserted and coupled. Then, the fastening portion 115 is formed on the lower portion of the head body 110 so that one end portion of the main pole 200 is fastened to the outer circumferential surface of the fastening portion 115, and the coupling method may be variously configured, for example, a screw method Can be

The push button 120 is mounted on the upper installation groove 111 of the head body 110 and assembled with the head fixing pins 160, so that the upper surface is inclined toward the lower front so as to conform to the shape of the head body 110. Can be formed.

The push button 120, the push piece 121 and the lock piece 122 are formed to extend downward. The pressing piece 121 is formed longer than the locking piece 122, and when the user presses the push button 120, the pressing piece 121 is loaded on the start rod assembly 610 of the length adjusting means 600 installed directly underneath. Can be added.

The push button 120, the load is applied to the start rod assembly 610 by a pressing operation, the load applied to the start rod assembly 610 is transmitted to the clamp assembly 640 through the action rod assembly 620, The clamp rod 646 of the clamp assembly 640 is pulled out from the main clamp 641, and the main clamp 641, which was pressing the spin pipe 632 of the spin pipe assembly 630 outward, is pressed and the pressure is released. Accordingly, the lock state by the spin pipe 632 is canceled by the main clamp 641.

That is, the main function of the push button 120 can be said to unlock the always-locked spin pipe 632 by the main clamp 641, and the unlocked spin pipe 632 moves up and down. It becomes possible, the first extension pole 300 along with the spin pipe 632 is slidable from the inside of the main pole 200, and can be drawn in and out of the main pole 200, so that the length can be adjusted. Have it.

The head silicon cover 130 and the head top cover 140 are covers that close the upper portion of the handle 100 in a state where the push button 120 is mounted on the head body 110.

The head silicone cover 130 can be assembled using an adhesive to the head body 110, and prevents penetration of water that is vertically dropped from the top surface or directly sprayed (vertical) into the internal mechanism, and the push button 120 There is a function to prevent slipping during operation, and a push button 120 operation induction function.

The head top cover 140 may fix the head silicon cover 130.

The button spring 150 is inserted into the pressing piece 121 to release the external pressure while the push button 120 is pressed, so that the push button 120 can be smoothly returned to the upper side. When the push button 120 is returned by the button spring 150, the clamp rod 646 of the clamp assembly 640 is drawn into the main clamp 641 by the clamp spring 644 so that the main clamp 641 is circumferential. While moving in the direction, the spin pipe 632 of the spin pipe assembly 630 is pressed outward to be locked.

The head fixing pin 160 and the E-ring 170 allow the push button 120 to be assembled to the head body 110.

The switch lock 180 may be installed in the withdrawal hole 113 of the head body 110, and may control or depress the pressing of the push button 120 by the user's operation. Of course, the switch lock 180 may be implemented in various ways, such as a rotation method or a push method.

The webbing strap 190 may be inserted into the webbing groove 114 of the head body 110.

The main pole 200, one end is fixedly coupled to the fastening portion 115 of the handle 100, the other end can be coupled to the first extension pole 300 by the first coupling member 250. The main pole 200 may have a start rod assembly 610 and an action rod assembly 620 of the length adjusting means 600 installed therein. A handle 210 may be provided on one outer circumferential surface of the main pole 200.

The first extension pole 300, one end is coupled to the other end of the main pole 200 by the first coupling member 250, the other end of the second extension pole 400 by the second coupling member 350 ), And can be installed to be able to be drawn in and out of the main pole 200. The first extension pole 300 may have a spin pipe assembly 630 and a clamp assembly 640 of a length adjusting means 600 installed therein.

The first extension pole 300 may be configured to be drawn in and out of the main pole 200 together with the spin pipe assembly 630. That is, when the spin pipe assembly 630 is locked by the clamp assembly 640 pressing the spin pipe assembly 630 outward, the first extension pole 300 is in a fixed state, and on the contrary, the clamp assembly 640 ) When the spin pipe assembly 630 is unlocked by releasing the pressurization of the spin pipe assembly 630, the first extension pole 300 is in a movable state.

The second extension pole 400, one end is coupled to the first extension pole 300 by the second coupling member 350, the other end is coupled to the end tip 500 by the third coupling member 450 It can be, it can be installed to be able to withdraw the inside and outside of the first extension pole (300).

The end tip 500 may serve to support the length adjusting device 10 and may be combined with the other end of the second extension pole 400 by the third coupling member 450. Of course, the end tip 500 is a portion to which the load applied to the length adjusting device 10 is finally transmitted, and may be formed in various structures capable of alleviating the impact caused by the load.

The length adjusting means 600 may be configured to allow fine length adjustment to the first extension pole 300 by manipulating the push button 120 of the handle 100. The length adjusting means 600 may include a start rod assembly 610, an action rod assembly 620, a spin pipe assembly 630, and a clamp assembly 640.

As will be seen later, the start rod assembly 610 and the action rod assembly 630 may be referred to as load transfer means for transmitting the load of the push button 120 to the clamp assembly 640.

In addition, the action rod assembly 620 may be referred to as a key for restraining or releasing the spin pipe assembly 630.

In addition, if the spin pipe assembly 630 is a movable shaft because it is movable along with the first extension pole 300, the start rod assembly 610, the action rod assembly 620, and the clamp assembly 640 move the flow shaft. It can be said to be a fixed shaft guiding.

The start rod assembly 610 may be installed over the boundary between the handle 100 and the main pole 200, and when the push button 120 is pressed, the load is transmitted to the action rod assembly 620 to clamp the assembly. The spin pipe assembly 630 may be unlocked, and a start rod 611 and a start rod column 612 may be included.

Start rod 611, one end is inserted into the lower installation groove 112 of the head body 110, the other end can be extended to the interior of the main pole (200). The start rod 611 may be in contact with the button spring 150 inside the pressing piece 121 while one end is inserted into the pressing piece 121, and the other end may be connected to the action rod assembly 620. .

The start rod column 612 may be installed on a part of the outer circumferential surface of the start rod 611 so as to contact the push piece 121 of the push button 120, and when the push button 120 is pressed, the load is started. It is possible to transmit to the action rod assembly 620 through (611).

The action rod assembly 620 may be installed inside the main pole 200, and when the push button 120 is pressed, the load transmitted from the start rod assembly 610 is transmitted to the clamp assembly 640 to clamp the assembly. It can be made to the unlocked state of the spin pipe assembly 630 by 640, and may include an action rod 621 and an action rod cylinder pipe 622.

The action rod 621 is installed inside the main pole 200, one end can be connected to the other end of the start rod 611, the other end is one end of the clamp rod 646 of the clamp assembly 640 Can be connected to. The action rod 621 may transfer the load transmitted from the start rod assembly 610 to the clamp assembly 640 so that the clamp assembly 640 is unlocked.

The action rod cylinder pipe 622 is installed inside the main pole 200 to guide the action rod 621 when sliding. That is, the action rod 621 transmits the load transmitted from the start rod assembly 610 to the clamp assembly 640 while sliding inside the action rod cylinder pipe 622, wherein the load is not distributed. The action rod cylinder pipe 622 guides the action rod 621 so that it can be transmitted in the vertical direction.

The spin pipe assembly 630 may be fixedly installed inside the first extension pole 300 and may be locked or unlocked by the clamp assembly 640. The spin pipe assembly 630 may move up and down together with the first extension pole 300 when it is unlocked by the clamp assembly 640 by the pressing operation of the push button 120, and accordingly, the first extension pole The 300 is drawn in and out of the main pole 200 so that the entire length can be adjusted.

The spin pipe assembly 630 may include a spin cover pipe 631, a spin pipe 632, and a spin pipe member 633. Here, the spin pipe member 633, the spin pipe spring (6331), spring guide rod (6332), stopper spring bush (6333), cushion spring (6334), the first spin pipe column (6335), the piston head ring ( 6336), the second spin pipe column (6337), the piston head (6338), may be made of a spin pipe column (6339), the spin cover pipe (631) is fixed to the first extension pole (300), The spin pipe 632 may perform a function such as not to disengage from the spin cover pipe 631 or press the spin pipe 632.

The spin cover pipe 631 may be fixedly installed inside the first extension pole 300 and accommodate the spin pipe 632.

The spin cover pipe 631 includes a stopper spring bush 633, a cushion spring 634, a first spin pipe column 6355, a piston head ring 6336, and a second of the spin pipe members 633 on the outer circumferential surface of one end. By assembling the spin pipe column 637 and thus installing the inside of the first extension pole 300 in a state where the spin pipe member 633 is assembled, it can be fixed inside the first extension pole 300. .

In addition, the spin cover pipe 631, the other end of the spin pipe member 633, the piston head (6338), the spin pipe column (6339) to prevent the spin pipe 632 accommodated therein is not separated. .

In addition, a spin pipe spring 631 and a spring guide rod 632 among the spin pipe members 633 are assembled and installed inside the spin cover pipe 631 to press and spin between neighboring spin pipes 632 accommodated therein. It is possible to prevent a gap from occurring between the pipes 632.

The spin pipe 632 and the spin cover pipe 631 may be accommodated therein, and as shown in FIG. 11, a round type groove 6321 is processed at a constant pitch on the inner circumferential surface.

The groove 6321 may be formed such that the protrusion 6414 formed in the main clamp 641 can be caught. The length adjustment range can be freely changed and modified according to the pitch of the groove 6321 processed inside and the length of the spin pipe 632.

The above-described spin pipe 632 may be inserted through one end of the spin cover pipe 631, and may be formed in plural.

The plurality of spin pipes 632 include one long spin pipe 632a that is relatively long, a plurality of short spin pipes 632b that are relatively short, and one last spin pipe 632c that is similar to the short spin pipe 632b. ). The plurality of spin pipes 632 inserted through one end of the spin cover pipe 631 may be inserted in the order of a long spin pipe 632a, a short spin pipe 632b, and a last spin pipe 632c.

In the above, the reason why the spin pipe 632 is made of the long spin pipe 632a, the short spin pipe 632b, and the last spin pipe 632c is the spin when the length adjusting device 10 is fully extended and folded. This is to align the position where the projection 6414 of the main clamp 641 is engaged with the groove 6321 from the inside of the pipe 632. Therefore, in order to correct the degree of unfolding and folding, the length of the long spin pipe 632a or the last spin pipe 632c may be changed.

In the clamp assembly 640, when the load applied by the pressing operation of the push button 120 is transmitted through the start rod assembly 610 and the action rod assembly 620, the lock state of the length adjusting device 10 is The length can be adjusted by being canceled.

The clamp assembly 640 may be installed over the boundary between the main pole 200 and the first extension pole 300, the main clamp 641, the clamp stopper nut 642, the clamp slider bush 643, Clamp spring 644 may be included.

The main clamp 641 may be installed inside the spin pipe 632 to constrain the spin pipe 632 so that the length adjusting device 10 maintains a locked state or releases the spin pipe 632 The length adjusting device 10 is made to be in a unlocked state, so that the length of the first extension pole 300 can be adjusted by drawing in and out of the main pole 200.

The main clamp 641 is a cylindrical shape having a hollow shape, and a plurality of cut grooves 6412 are formed in a longitudinal direction from one end of the clamp body 6411, and a plurality of cut grooves 6412 are used. Dog fingers 6413 may be formed. Protrusions 6414 may be provided at the ends of each of the plurality of fingers 6413.

Four fingers 6413 may be formed by processing the incision groove 6212 in a "+" shape, and the outer diameter is large so that the head portion 6602 of the clamp rod 646 can be easily withdrawn. It is possible to achieve an inclined surface having a smaller diameter as it goes inward.

The finger 6413, when the head portion 6602 of the clamp rod 646 is drawn in, moves in the circumferential direction so that the projection 6414 engages the groove 6321, and the head portion 6602 of the clamp rod 646 When it is withdrawn, it is brought into its original state so that the protrusion 6414 comes out of the groove 6321.

The protrusion 6414 may be formed at an end of the finger 6413 and may have a shape corresponding to the groove 6321 of the spin pipe 632.

The clamp stopper nut 642 may be formed on a portion of the outer circumferential surface of the clamp body 6411 of the main clamp 641, so that the main clamp 641 does not deviate from the spin cover pipe 631 of the spin pipe assembly 630. can do.

The clamp slider bush 643 may be formed on a portion of the outer circumferential surface of the clamp body 6411 of the main clamp 641, and allow the main clamp 641 to stably slide inside the spin pipe 632.

The clamp spring 644 may be inserted into the tail portion 6603 of the clamp rod 646 while the clamp rod 646 is assembled to the main clamp 641.

In the clamp spring 644, one end is fixed to the main clamp 641 and the other end is fixed by the clamp partner 645, so that the head portion 6602 of the clamp rod 646 is always the main clamp 641. It is to maintain the state (locked state) drawn in the finger (6413). The clamp spring 644 is contracted by the pressing operation of the push button 120, but returns to the original state at the moment when the pressing operation of the push button 120 is canceled. Thereby, the length adjusting device 10 is always locked by the clamp spring 644.

The clamp partner 645 may be installed to be inserted into the tail portion 6603 of the clamp rod 646, and the other end of the clamp spring 644 while the clamp rod 646 is assembled to the main clamp 641. Can be fixed.

The clamp rod 646 may be inserted and installed through one end of the main clamp 641, and a load applied by the pressing operation of the push button 120 may be applied to the start rod assembly 610 and the action rod assembly 620. When delivered through, it may be withdrawn from the main clamp 641 by the load.

Clamp rod 646, the main clamp 641 may act as a key (key) for restraining or releasing the spin pipe 632, the body portion (6461), head (6462), tail (6463) It can be divided into.

The body portion 6641 has a diameter corresponding to the hollow diameter of the main clamp 641, but may have a tapered shape that decreases in diameter toward the head portion 6462.

The tapered portion of the torso portion 6651 is a portion where the finger 6413 is seated while the head 6646 is withdrawn from the finger 6403 (unlocked), and when the finger 6403 is seated The protrusion 6414 does not interfere with the spin pipe 632, so that the spin pipe 632 can move freely from the main clamp 641.

The head portion 6462 has a larger diameter than the body portion 6641 and causes the finger 6403 to move in the circumferential direction while being drawn into the finger 6403 so that the protrusion 6414 is a groove 6321 of the spin pipe 632 ). The head portion 6462 may have a tapered shape in which a portion in contact with the inlet of the finger 6403 has a smaller diameter than other portions to facilitate drawing in and out of the finger 6403.

The tail portion 6603 may be equal to or smaller than the diameter of the body portion 6641, the clamp spring 644 may be inserted, and the clamp partner 645 for fixing the inserted clamp spring 644 A groove (not shown) may be formed to be installed.

The tail portion 6603 may be connected to the action rod 621 of the action rod assembly 620, and may receive a load applied by the push action of the push button 120 from the action rod 621.

As described above, the length adjusting device 10 according to an embodiment of the present invention, the start rod assembly 610, the action rod assembly 620 and the clamp assembly 640 are connected in a straight line to serve as a fixed axis, When the spin pipe assembly 630 acts as a flow axis together with the first extension pole 300 and is locked by the clamp assembly 640 according to the pressing operation of the push button 1120, the spin pipe assembly 630 ) As the first extension pole 300 moves up and down along with the first extension pole 300 along the fixed axis, the first extension pole 300 is drawn in and out of the main pole 200 so that the entire length can be adjusted.

The operation of the length adjusting device 10 according to the embodiment of the present invention will be described as follows.

In the state in which the length adjusting device 10 is folded and stored, first, the second extension pole 400 accommodated in the first extension pole 300 is pulled downward and withdrawn, and the second coupling member 350 is used. Fix it.

In a state in which the push button 120 is not pressed, the main clamp 641 pulls the spin pipe 632 while the clamp rod 646 is inserted into the main clamp 641 by the force of the clamp spring 644. It is pressed outward, and accordingly, the length adjusting device 10 maintains a locked state at all times.

When the load is transmitted to the clamp assembly 640 through the start rod assembly 610 and the action rod assembly 620 as the push button 120 is pressed, the pressurization of the spin pipe 632 by the main clamp 641 is performed. The main clamp 641 in the always-locked state is released by the clamp spring 644 and the clamp rod 646, and the first extension pole 300 is pulled out from the main pole 200 in the unlocked state. Thus, the length adjusting device 10 is extended.

When it is determined that the length adjusting device 10 is adjusted to a length that can be conveniently used by the user, when the user releases the load pressing the push button 120, the push button 120 assists the button spring 150. While receiving and returning upward, the load applied to the start rod 611 of the start rod assembly 610, the action rod 621 of the action rod assembly 620, and the clamp rod 646 of the clamp assembly 640 is also released, thereby The clamp rod 646, the action rod 621, and the start rod 611 are pushed upward by the return force of the clamp spring 644. At this time, the clamp rod 646 is introduced into the main clamp 641 by the return force of the clamp spring 644, so that the main clamp 641 presses the spin pipe 632 again, so that the first extension pole 300 Pulling or applying force will no longer pull or stretch.

In this state, by controlling the push of the push button 120 by operating the switch lock 180, the user can safely use the length adjusting device 10.

In the above, the case in which the length adjusting device 10 is extended has been described, but the case of contracting is the same as the above operation, but only the direction in which the first extension pole 300 is drawn into the main pole 200 is different, and thus the description is omitted. do.

As described above, the length adjusting device 10 according to the present invention can freely adjust the length extension and fixation as desired through the locking and unlocking of the clamp assembly 640, and the first extension pole 300 It is possible to fine-adjust the length, increase the locking force, act smoothly and flexibly against the ground when adjusting the length, prevent the push button 120 from being randomly pressed during storage or use, and press the button spring 150, clamp spring ( 644) The length can be adjusted smoothly and smoothly by installing a lamp, etc. Also, the length can be easily changed only by the operation of the push button 120. , It is smooth and smoothly adjustable in length, and can be operated quickly in a variety of use environments.

In the above, the present invention has been described based on the embodiments of the present invention, but this is merely an example and does not limit the present invention, and those skilled in the art to which the present invention pertains will not depart from the essential technical content of the present embodiment. It will be appreciated that various combinations or variations and applications not illustrated in the examples are possible in the scope. Therefore, technical contents related to modifications and applications that can be easily derived from the embodiments of the present invention should be interpreted as being included in the present invention.

1: Instruction part 2: Length adjustment means
2a: Upper pole 2b: Nut
2c: lower pole 3: horn
3a: Pressing part 4: Luminous band
5: Handle 10: Length adjustment device
100: handle 110: head body
111: upper mounting groove 112: lower mounting groove
113: withdrawal hole 114: webbing home
115: fastening part 120: push button
121: pressing piece 122: locking piece
130; Head silicone cover 140: head top cover
150: button spring 160: head fixing pin
170: E-ring 180: Switch lock
190: webbing strap 200: main pole
210: handle 250: first coupling member
300: first extension pole 350: second coupling member
400: second extension pole 450: third coupling member
500: end tip 600: length adjustment means
610: start rod assembly 611: start rod
612: start rod column 620: action rod assembly
621: Action rod 622: Action rod cylinder pipe
630: spin pipe assembly 631: spin cover pipe
632: Spin Pipe 632a: Long Spin Pipe
632b: short spin pipe 632c: last spin pipe
6321: groove 633: no spin pipe
6331: Spin pipe spring 6332: Spring guide rod
6333: Stopper spring bush 6334: Cushion spring
6335: first spin pipe column 6336: piston head ring
6337: second spin pipe column 6338: piston head
6339: Spinpipe column 640: Clamp assembly
641: main clamp 6411: clamp body
6412: incision groove 6413: finger
6414: projection 642: clamp stopper nut
643: Clamp slider Bush 644: Clamp spring
645: Clamp partner 646: Clamp rod
6461: torso 6462: head
6463: tail

Claims (10)

A handle including a push button;
A main pole coupled to the handle;
A kidney pole that draws in and out of the main pole; And
It includes a length adjusting means for adjusting the overall length by allowing the extension pole to be drawn into and out of the main pole by the operation of the push button
The length adjustment means,
It is installed inside the main pole, the load transmission means for transmitting the load of the push button;
A spin pipe assembly fixedly installed inside the extension pole; And
It is installed over the boundary between the main pole and the extension pole, characterized in that it comprises a clamp assembly to maintain the locked or unlocked state of the spin pipe assembly by pressing or releasing the spin pipe assembly to the outside. Length adjustment device. According to claim 1, The spin pipe assembly,
A spin cover pipe fixedly installed inside the extension pole; And
Length control device is accommodated in the interior of the spin cover pipe, characterized in that it comprises a round-shaped groove-shaped spin pipe at a constant pitch on the inner peripheral surface. According to claim 1, The spin pipe assembly,
While maintaining the locked state by the clamp assembly, when the push button is pressed to unlock the clamp assembly, it moves up and down together with the extension pole to allow the extension pole to be drawn in and out of the main pole. Length adjustment device characterized in that. According to claim 2, The spin pipe,
It consists of a plurality,
The plurality of spin pipes is composed of a relatively long long spin pipe, a plurality of relatively short short spin pipes, and a last spin pipe similar to the short spin pipe, and through one end of the spin cover pipe. The long spin pipe, the short spin pipe, the length adjustment device, characterized in that inserted in the last spin pipe. According to claim 2, The clamp assembly,
A main clamp installed inside the spin pipe to constrain the spin pipe to maintain a locked state, or to release the spin pipe to maintain a locked unlocked state;
A clamp rod which is inserted into the main clamp and is connected to the load transmission means to receive a load due to a pressing operation of the push button and to be withdrawn from the main clamp; And
When the load of the push button is released, the length adjustment device comprising a clamp spring to maintain the state in which the clamp rod is drawn into the main clamp. According to claim 5, The main clamp,
The entire shape is a cylindrical shape having a hollow shape, a plurality of cutout grooves are formed in a longitudinal direction from one end of the clamp body, a plurality of fingers are formed by the plurality of cutout grooves, and the ends of each of the plurality of fingers are Length adjustment device characterized in that the projections of the shape corresponding to the groove is provided. The method of claim 6, wherein the clamp rod,
A body portion formed in a diameter corresponding to the hollow diameter of the main clamp;
A head portion having a diameter larger than that of the body portion and moving the finger in a circumferential direction while being drawn into the finger so that the protrusion is caught in the groove; And
The clamp spring is inserted, length adjusting device comprising a tail portion connected to the load transmission means. The method of claim 7, wherein the body portion,
It has a tapered shape that decreases in diameter as it goes toward the head,
The tapered portion of the torso is a length adjusting device, characterized in that the head is a portion that is seated while the fingers are retracted when drawn out of the finger. According to claim 1, The load transmission means,
A start rod assembly installed over a boundary between the handle and the main pole, and connected to the push button; And
It is installed inside the main pole, the length adjustment device comprising an action rod assembly for connecting the start rod assembly and the clamp assembly. The method of claim 9,
The start rod assembly, the action rod assembly and the clamp assembly are connected in a straight line to form a fixed axis,
The spin pipe assembly forms a flow axis,
When the push button is pressed to release the lock by the clamp assembly, the spin pipe assembly moves up and down along with the extension pole along the fixed axis, so that the extension pole is drawn in and out of the main pole. Length adjustment device.

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