JP2017150498A - Flexible lock unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate operation of a lock unit, perform lock or lock release of an extensible poll simply and instantaneously, and adjust a height or length of the extensible poll easily.SOLUTION: A lock unit U is configured such that in a housing 1 (extensible side poll insertion part 12) provided at one end part of a stationary side poll P1, an extensible side poll P2 is pressure-welded into a substantially chevron shape and locked by a pair of annular lock members 2 with this state as a normal state, and with single pressing operation of an operation button 40 on a peripheral surface of the housing 1, the gap between the respective annular lock members 2 is forcibly opened by a wedge-shaped part 41 inside the housing 1, to release lock of the extensible poll P2.SELECTED DRAWING: Figure 3

Description

  In the present invention, the other pole is inserted into one hollow pole, such as a telescopic pole, and one pole is fixed and the other pole is movable, and the other pole is expanded and contracted with respect to one pole. The other pole is inserted into one hollow pole, such as a type that slides in the direction or a monitor support stand, with one pole on the movable side and the other pole on the fixed side, and one pole on the other pole The present invention relates to a flexible lock unit that is used to lock one pole and the other pole in a sliding type.

In general, an infusion stand used in a medical institution uses an extendable pole with a lock unit so that the height of the stand body can be adjusted.
This type of drip stand has been proposed in Patent Document 1 and the like.
As is clear from this document 1, this type of telescopic pole is composed of a lower fixed pole made of a metal pipe and a metal that is slidably inserted into the fixed pole in the vertical direction. A lock unit for locking the telescopic pole extended from the upper end of the pole at a predetermined height to the upper end of the fixed pole. Provided. This lock unit consists of a screw hole provided near the upper end of the fixed pole, and a bolt with a grip or a screw that is screwed into the screw hole. After adjusting the height by sliding to the required height while pulling up or down, tighten the bolt into the screw hole of the fixed pole by turning the grip or knob, and fix the outer peripheral surface of the telescopic pole at the tip of the bolt. It locks by pressing.

JP 2013-17654 A

  However, the conventional lock unit is a screw type, and when adjusting the height or length of the telescopic pole, turn the grip or knob to loosen the bolt, and adjust the height or length of the telescopic pole. After the adjustment, the grip or the knob is turned again to tighten the bolt. There is a problem that it is difficult to adjust the height or length.

  The present invention solves such a conventional problem. In this type of lock unit, it is possible to reliably and instantaneously lock and unlock one pole and the other pole by a simple operation. The purpose.

In order to achieve the above object, the present invention provides:
The other pole is inserted into one hollow pole, the one pole is a fixed side, the other pole is a movable side, and the other pole is slid in a telescopic direction with respect to the one pole, Alternatively, a flexible lock used for locking the one pole and the other pole, wherein the one pole is a movable side and the other pole is a fixed side, and the one pole is slid on the other pole. A unit,
The whole has a substantially cylindrical shape, can be inserted into the one pole connecting portion that can be inserted into the one pole, the one pole connecting portion, and the other pole that is passed through the one pole. A housing including an operation member mounting portion having a through hole in an axially intermediate portion of a peripheral surface of the other pole insertion portion and the other pole insertion portion;
A pair of annular lock members that are passed through the other pole inserted into the insertion section within the other pole insertion section of the housing and disposed opposite to each other on the other pole; A pressure lock mechanism that obliquely presses the annular lock member against the other pole in a substantially C shape;
The operation member mounting portion of the housing is passed between the operation member mounting portion and the other pole insertion portion through the through hole, and has an operation button at the end on the operation member mounting portion side, and the other pole There is a wedge-shaped portion that can be pushed open between the annular lock members at the end on the insertion portion side so that the annular lock members are substantially parallel or nearly parallel to each other. An operation member that is disposed between the lock members so as to be movable back and forth between a lock release position that pushes each annular lock member substantially parallel or close to substantially parallel and a lock position that is separated from the lock release position; And a spring member interposed between the housing and the operation member, and normally holds the operation member in the locked position,
With
As a normal state, in the other pole insertion portion, the other pole is pressed and locked in a substantially C shape by the annular locking members,
By pressing the operation button with one touch, the wedge-shaped portion pushes between the annular lock members in the other pole insertion portion, and unlocks the other pole.
This is the gist.
In this case, the pressing lock mechanism is passed through the other pole inserted into the insertion portion in the other pole insertion portion, and is disposed outside the annular lock member on the other pole, and the annular lock member A pair of cylindrical pressing members that are formed obliquely on both sides and that both surfaces form a substantially C shape, and that each of the annular lock members are obliquely pressed and guided in a substantially C shape, and the other pole insertion portion It is arranged and fixed at a position facing the operation member mounting portion, and a surface facing each of the annular lock members is formed obliquely in a substantially C shape, and each annular lock member is supported and guided obliquely in a substantially C shape. A guide stopper, disposed outside the cylindrical pressing member in the other pole insertion portion, presses the cylindrical pressing member inward, and each oblique surface of the cylindrical pressing member and the Each diagonal of the guide stopper It is preferred that a pair of coil springs for pressing the shape of a substantially C the respective annular locking member relative to the telescopic side poles between.
Further, in this case, the operating member mounting portion is formed in a convex shape with a predetermined thickness on the outer peripheral surface of the other pole insertion portion of the housing, and a through hole is formed in the approximate center of the operating member mounting portion, and spring members are provided on both sides thereof. Grooves for loading the coil springs are formed, and the operation members are formed in a case shape or a plate shape, and the operation buttons have a wedge-shaped portion at the center of the inner surface of the operation buttons, and convex portions on both sides thereof. Protruding, the wedge-shaped member is inserted through the through hole, and each convex portion is disposed in each groove via a coil spring and is attached to the operation member mounting portion of the housing. It is preferable.

  According to the flexible lock unit of the present invention, according to the above configuration, as a normal condition, the other pole is pressed into a substantially C shape by the pair of annular lock members pressed by the press lock mechanism in the other pole insertion portion of the housing. By pressing the operation button with one touch, the wedge-shaped part pushes open between each annular lock member in the other pole insertion part, and the lock of the other pole is released. With a simple operation, there is a special effect unique to the present invention that the locking and unlocking of one pole and the other pole can be reliably and instantaneously performed.

The figure (perspective view) which shows the flexible lock unit in one embodiment of the present invention The figure which shows the structure of each part of the lock unit ((a) is a view seen from the operation button side, (b) is a view seen from the end face of the housing (end face of the shortened side pole insertion part) (c) is the view of the operation button The side view (d) is a cross-sectional view of (c)) The figure which shows the example of use at the time of using the same lock unit for the drip stand ((1) is the lock state of the lock unit (2) is the lock unit unlocked state) The figure which shows the usage example at the time of using the same lock unit for the support stand for monitor of a vertical slide type The figure which shows the usage example at the time of using the same lock unit for the support apparatus for monitors of a horizontal direction slide type

Next, embodiments of the present invention will be described with reference to the drawings.
In this flexible lock unit, the other pole is inserted into one hollow pole, and the other pole is slid in the telescopic direction with respect to one pole, with one pole as the fixed side and the other pole as the movable side. It is used to lock one pole and the other pole of the type, or one pole is movable side, the other pole is fixed side, and one pole is slid on the other pole, In addition to the telescopic pole such as an infusion stand exemplified in the prior art, the present invention can be applied to various things.
Here, this flexible lock unit is exemplified as a lock unit U for an extendable pole (hereinafter simply referred to as a lock unit U) as one specific example of the former type.

  As shown in FIG. 1, the lock unit U is provided at one end of a fixed side pole P1 and is slidably inserted into a fixed side pole (one hollow pole) P1. The telescopic side pole (the other pole) P2 extending from one end of P1 is locked at a predetermined height or length. The whole has a substantially cylindrical shape, and the fixed side pole P1 is inserted at one end. The fixed side pole connecting part (one pole connecting part) 11 that can be worn and the fixed side pole connecting part 11 communicate with each other, and the telescopic side pole P2 can be inserted between the fixed side pole connecting part 11 and the other end. The expansion / contraction side pole insertion part (the other pole insertion part) 12 and the operation member mounting part 13 having a through hole 130 (see FIG. 2D) in the axially intermediate portion of the peripheral surface of the expansion / contraction side pole insertion part 12 are provided. Housing 1 and expansion and contraction of housing 1 A pair of annular lock members 2 and a pair of annular lock members that are passed through the telescopic side pole P2 inserted through the insertion part 12 in the pole insertion part 12 and arranged opposite to each other on the telescopic side pole P2. 2 and 2 through the through hole 130 of the operation member mounting portion 13 of the housing 1, and the operation member mounting portion 13 and the expansion / contraction side pole insertion portion 12. The operation button 40 is provided at the end on the operation member mounting portion 13 side, and the ring lock members 2 are arranged substantially in parallel between the ring lock members 2 at the end on the telescopic side pole insertion portion 12 side. Alternatively, it has a wedge-shaped portion 41 (see FIG. 2 (d)) that can be pushed open so as to be nearly parallel, and the wedge-shaped portion 41 is inserted between the annular lock members 2 so that each annular lock member 2 is inserted. Nearly parallel or close to parallel The operation member 4 is disposed between the housing 1 and the operation member 4 so as to be able to advance and retreat between a lock release position that pushes the door open and a lock position that is separated from the lock release position. And a spring member 5 (see FIG. 2 (d)) for holding at a locked position.

  As shown in FIG. 2, the entire housing 1 is formed in a substantially cylindrical shape. The fixed pole connecting portion 11 is formed into a bottomed cylindrical shape with one end of the housing 1 being opened at one end surface of the housing 1 so that the fixed pole P1 can be inserted from one end surface of the housing 1. The telescopic side pole insertion portion 12 is formed in a cylindrical shape between the fixed side pole connecting portion 11 and the other end of the housing 1 and has an inner diameter larger than the inner diameter of the fixed side pole connecting portion 11. An opening 120 through which the telescopic pole P <b> 2 can be inserted is provided on the other surface (bottom portion) and the other end surface of the housing 1. In this case, the spring receiver 121 is provided around the opening 120 on the surface of the bottom side of the fixed side pole coupling portion 11 on the side of the telescopic side pole insertion portion 12. The other end surface of the housing 1 is opened larger than the outer diameter of the telescopic side pole P2, and a ring member 122 having an opening 120 through which the telescopic side pole P2 can be inserted is attached to the opening. An opening 120 through which the pole P2 can be inserted is formed. A spring receiver 121 is provided around the opening 120 on the surface of the ring member 122 on the telescopic pole insertion portion 12 side.

As shown in FIG. 2 (d), the pressing lock mechanism 3 is passed through the telescopic side pole P2 inserted through the insertion part 12 in the expansion / contraction side pole insertion part 12, and on each of the expansion / contraction side poles P2. The surface 311 on the side of each annular lock member 2 is formed obliquely (diagonally downward), and the both surfaces 311 are substantially C-shaped, and each annular lock member 2 is substantially C-shaped. A pair of cylindrical pressing members 31 that are pressed and guided obliquely to each other, and both surfaces 321 that are disposed and fixed at positions facing the operation member mounting portion 13 in the telescopic pole insertion portion 12 and that face each annular lock member 2 are substantially A guide stopper 32 that is formed obliquely in the shape of a letter, and that supports and guides each annular lock member 2 obliquely in a substantially square shape, and is disposed outside each cylindrical pressing member 31 in the telescopic side pole insertion portion 12. Each cylindrical pressing member 31 faces inward The annular locking member 2 is pressed against the telescopic pole P2 in a substantially C shape between the inclined surfaces 311 of the cylindrical pressing members 31 and the inclined surfaces 321 of the guide stoppers 32. A pair of coil springs 33 is provided.
Here, each annular lock member 2 is formed of a substantially oval-shaped member, and has a hole 20 having an inner diameter slightly larger than the outer diameter of the telescopic pole P2 at the center thereof. A small hole is also provided around the hole 20 of each annular lock member 2, in this case, in a vertically symmetrical position.
Each cylindrical pressing member 31 is formed of a substantially cylindrical member having a substantially oval cross section corresponding to the shape of each annular lock member 2, and has an inner diameter slightly larger than the outer diameter of the telescopic side pole P <b> 2. The one end surface 311 on the side facing each cylindrical pressing member 31 is formed obliquely downward at a predetermined angle with respect to the shaft core, and the other end surface 312 is formed substantially perpendicular to the shaft core. Thus, a spring receiver 313 is provided. In addition, the protrusion which can be engaged with each hole of each cyclic | annular lock member is provided in the circumference | surroundings of the hole 30 of the one end surface 311 of each cylindrical press member 31 in this case, and a vertically symmetrical position. Each annular lock member 2 is fitted to one end surface 311 of each cylindrical pressing member 31, and each projection of each cylindrical pressing member 31 is inserted into each hole of each annular locking member 2, so that each cylindrical pressing member is inserted. Each annular lock member 2 is assembled on one end surface 311 of 31 by being prevented from rotating.
The guide stopper 32 is formed in a convex shape having a substantially trapezoidal cross section at a position facing the operation member mounting portion 13 on the inner peripheral surface of the telescopic side pole insertion portion 12, and each surface 321 facing each annular lock member 2 is substantially It presents a slanted surface of the shape of
One of the pair of coil springs 33 is wound around one end of the telescopic pole P2, one end is fixed to the spring receiver 121 at the bottom of the fixed pole connecting portion 11, and the other end is one of the cylindrical pressing member 31 and the like. The other end of the telescopic pole P2 is fixed to the spring receiver 313 of the end surface 312 and the other end is wound around the other end of the telescopic pole insertion portion 12, in this case, the spring receiver 121 around the ring member 122. The other end is fixed to the spring receiver 313 of the other end surface 312 of the other cylindrical pressing member 31.

As shown in FIG. 2, the operation member mounting portion 13 is formed in a substantially rectangular parallelepiped convex shape with a predetermined thickness on the outer peripheral surface of the telescopic side pole insertion portion 12 of the housing 1, and at the approximate center of the operation member mounting portion 13. A through hole 130, a groove 131 for loading a coil spring as the spring member 5 on both sides thereof, and a guide slit 132 into which a flat guide piece 43 can be inserted are formed on both sides thereof.
The operation member 4 is formed in a case shape or a plate shape having a circular arc shape in plan view along the peripheral surface of the housing 1 where the operation button 40 is slightly larger than the operation member mounting portion 13, and is substantially at the center of the inner surface of the operation button 40. The wedge-shaped portion 41 is provided with a convex portion 42 on both sides thereof, and a flat guide piece 43 is provided on both sides thereof. The wedge-shaped member 41 is inserted into the through hole 130 of the operation member mounting portion 13. At the same time, each convex portion 42 is disposed in each groove 131 of the operation member mounting portion 13 via the coil spring 5, and each guide piece 43 is inserted into each guide slit 132 of the operation member mounting portion 13, so that the housing 1 It is mounted on the operation member mounting portion 13.

  In this way, the lock unit U is configured, and, as a normal condition, the telescopic side pole P2 is locked by being pressed into a substantially C shape by each annular lock member 2, and the operation button 40 is pressed by one-touch operation. A wedge-shaped portion 41 pushes between the annular lock members 2 in the insertion portion 12 to release the lock on the telescopic pole P2.

FIG. 3 illustrates a case where the lock unit U is used for, for example, a telescopic pole of an infusion stand used in a medical institution. In this case, the operation of the lock unit U, the lock by the lock unit U, the unlocking, and the height adjustment of the drip stand are performed as follows.
In this case, as shown in FIG. 3A, the lock unit U is provided at the upper end portion of the fixed side pole P1, and the telescopic side pole P2 extending and contracting from the upper end portion of the fixed side pole P1 is in a normal state. As shown in FIG. 2, the annular lock members 2 are pressed into a generally C shape by a pair of annular lock members 2, that is, each annular lock member 2 has an inner peripheral edge at a high position on the telescopic side pole P2, and an inner peripheral edge at a lower position. The parts are respectively pressed against the lower part of the telescopic pole P2 and locked. Accordingly, the telescopic pole P2 cannot be extended or contracted from the fixed pole P1.
Therefore, first, as shown in FIG. 3 (2), the operation button 40 of the operation member 4 is pushed by one touch by manual operation. At this time, since the operation button 40 is formed in a case shape or a plate shape having a circular arc shape in a plan view and a rectangular shape in plan view, the operation button 40 can be easily pushed by the palm of the hand, and the housing 1 of the lock unit can be grasped while the operation button 40 is being pressed. Then, the pressing state of the operation button 40 can be easily maintained. At this time, the wedge-shaped portion 41 at the center of the inner surface of the operation button 40 is unlocked from the locked position by the engagement guide between the guide pieces 43 on both sides thereof and the guide slits 132 on both sides of the operation member mounting portion 13. Inserted securely in position. Thus, the wedge-shaped portion 41 of the operation member 4 pushes between the annular lock members 2 in the telescopic side pole insertion portion 12 of the housing 1 so that the annular lock members 2 are substantially parallel or nearly parallel. The upper inner peripheral edge of each annular lock member 2 is separated from the upper part of the telescopic side pole P2, and the lower inner peripheral part is separated from the lower part of the telescopic side pole P2. The pole P2 is unlocked. In this state (while manually pressing the operation button 40), the height is adjusted by sliding the telescopic pole P2 from the upper end of the fixed pole P1 to the required height while pulling up or down. . Then, after adjusting the height of the telescopic pole P2, the operation of pressing the operation button 40 is released. That is, the operation button 40 is released. As a result, as shown in FIG. 3A, the operating member 4 is elastically returned by the spring member 5, and the wedge-shaped portion 41 of the operating member 4 is retracted from the unlocked position to the locked position. As a result, each annular lock member 2 is pressed into a substantially C shape with respect to the telescopic side pole P2, that is, the inner peripheral edge of the annular lock member 2 at the upper position is located above the telescopic side pole P2. The inner peripheral edge of the lower position is pressed against and locked to the lower part of the pole P2 on the expansion / contraction side, and the height of the expansion / contraction ball P2 is fixed to the adjusted height.

As described above, according to this lock unit U, a pair of annular poles P2 on the expansion / contraction side within the housing 1 (extension / contraction side pole insertion part 12) provided at one end of the fixed side pole P1 is used as a normal state. The lock member 2 presses and locks in a substantially C shape, and each wedge-shaped portion 41 is formed in the housing 1 (extension-side pole insertion portion 12) by one-touch operation of the operation button 40 on the circumferential surface of the housing 1 Pushing open between the annular lock members 2 and unlocking the telescopic pole P2, the telescopic pole can be locked and unlocked reliably and instantly with a simple operation of the lock unit U. The height or length of the pole can be easily adjusted.
Further, in this lock unit U, the pressing lock mechanism 3 is passed through the telescopic side pole P2 inserted through the insertion part 12 in the expansion / contraction side pole insertion part 12, and each annular lock is placed on the expansion / contraction side pole P2. The surface 311 on the side of each annular lock member 2 is formed obliquely on the outside of the member 2, and the both surfaces 311 form a substantially C shape, and each annular lock member 2 is obliquely pressed and guided in a substantially C shape. A pair of cylindrical pressing members 31 are arranged and fixed at positions facing the operation member mounting portion 13 in the telescopic side pole insertion portion 12, and a surface 321 facing each annular lock member 2 is formed obliquely in a substantially C shape. A guide stopper 32 that obliquely supports and guides each annular locking member 2 in a substantially C shape, and is disposed outside each cylindrical pressing member 31 within the telescopic side pole insertion portion 12, and each cylindrical pressing member 31. Press inward A pair of coils that press-contact each annular lock member 2 in an approximately C shape with respect to the pole P2 on the expansion / contraction side between each oblique surface 311 of each cylindrical pressing member 31 and each oblique surface 321 of the guide stopper 32. Since it is comprised with the spring 33, the pole P2 of the expansion-contraction side can be reliably locked with a simple apparatus structure.
Further, in this lock unit U, the operation member mounting portion 13 is formed in a substantially rectangular parallelepiped convex shape with a predetermined thickness on the outer peripheral surface of the telescopic side pole insertion portion 12 of the housing 1, and is substantially at the center of the operation member mounting portion 13. A plurality of grooves 131 for loading coil springs as spring members 5 are formed on both sides thereof, and the operation member 4 has an operation button 40 formed in a substantially rectangular parallelepiped case shape or plate shape, A wedge-shaped portion 41 is provided approximately at the center of the inner surface of the operation button 40, and a plurality of convex portions 42 are provided on both sides thereof. The wedge-shaped member 41 is inserted into the through hole 130, and each convex portion 42 is Since each groove 131 is disposed via the coil spring 5 and is attached to the operation member mounting portion 13 of the housing 1, the operation button 40 can be easily pushed and released with a simple device configuration. Comb, lock, can be reliably performed unlocked.
Furthermore, in this lock unit U, guide slits 132 are formed on both sides of the through hole 130 in the operation member mounting portion 13, and guide pieces 43 are provided on both sides of the wedge-shaped portion 41 on the inner surface of the operation button 40. Therefore, by the engagement guide between the guide slit 132 and the guide piece 43, the wedge-shaped portion 41 is securely inserted from the locked position to the unlocked position, and each annular lock member 2 is pushed open to open the telescopic side pole. The lock of P2 can be reliably released.

In the lock unit U, the shape of each member can be variously changed. Moreover, if each spring member is functionally the same, it can be variously changed.
In this embodiment, the lock unit for the telescopic pole is exemplified. However, when the telescopic pole is used for each strut such as a clothes rack or a coat rack composed of a pair of struts and a bar spanned between the struts. Also, this lock unit can be used in the same manner.

In addition, as described above, this flexible lock unit has the other pole inserted in one hollow pole, with one pole on the movable side, the other pole on the fixed side, and one pole on the other pole. Can also be used to lock one pole and the other pole of the type of sliding in FIG.
FIG. 4 shows a support stand that supports various devices such as a monitor so as to be slidable in the vertical direction. The support stand includes one hollow short pole P1 and a long pole P2 inserted into the pole P1, and the short pole P1 is slidable vertically on the long pole P2. The arm A is attached to the short pole P1, and the monitor M is fixed to the arm A. In this case, a lock unit U is connected to the lower end of the short pole P1, and the short pole P1 can be locked to an arbitrary height of the long pole P2 by the lock unit U. When changing the height of the monitor M, the short pole P1 may be slid up and down on the long pole P2 while pressing the operation button 40 of the lock unit U.
FIG. 5 shows a support device that supports various devices such as the monitor M so as to be slidable in the horizontal direction. This support device includes a pair of hollow short poles P1 and long poles P2 inserted into these poles P1, and each short pole P1 is slidable horizontally on the long pole P2. Yes. In this case, the arm A is attached to each short pole P1, and the monitor M is suspended from these arms A. In this case, the lock unit U is provided with one pole connecting portion 11 at both ends, and is connected between the short poles P1, so that the short poles P1 are placed at arbitrary positions in the length direction of the long pole P2 by the lock unit U. It can be locked. When changing the position of the monitor M, it is only necessary to slide each short pole P1 horizontally on the long pole P2 while pressing the operation button 40 of the lock unit U.

P1 Fixed side pole P2 Telescopic side pole A Arm M Monitor U Telescopic pole lock unit 1 Housing 11 Fixed side pole connecting part (one pole connecting part)
12 Telescopic pole insertion part (the other pole insertion part)
DESCRIPTION OF SYMBOLS 120 Opening 121 Spring support 122 Ring member 13 Operation member attaching part 130 Through-hole 131 Groove 132 Guide slit 2 Annular lock member 20 Hole 21 Hole 3 Press lock mechanism 30 Hole 31 Cylindrical press member 311 Surface 311P Protrusion 312 Surface 313 Spring receiver 32 Guide stopper 321 surface 33 coil spring 4 operation member 40 operation button 41 wedge-shaped part 42 convex part 43 guide piece 5 spring member (coil spring)

Claims (3)

The other pole is inserted into one hollow pole, the one pole is a fixed side, the other pole is a movable side, and the other pole is slid in a telescopic direction with respect to the one pole, Alternatively, a flexible lock used for locking the one pole and the other pole, wherein the one pole is a movable side and the other pole is a fixed side, and the one pole is slid on the other pole. A unit,
The whole has a substantially cylindrical shape, can be inserted into the one pole connecting portion that can be inserted into the one pole, the one pole connecting portion, and the other pole that is passed through the one pole. A housing including an operation member mounting portion having a through hole in an axially intermediate portion of a peripheral surface of the other pole insertion portion and the other pole insertion portion;
A pair of annular lock members that are passed through the other pole inserted into the insertion section within the other pole insertion section of the housing and disposed opposite to each other on the other pole; A pressure lock mechanism that obliquely presses the annular lock member against the other pole in a substantially C shape;
The operation member mounting portion of the housing is passed between the operation member mounting portion and the other pole insertion portion through the through hole, and has an operation button at the end on the operation member mounting portion side, and the other pole There is a wedge-shaped portion that can be pushed open between the annular lock members at the end on the insertion portion side so that the annular lock members are substantially parallel or nearly parallel to each other. An operation member that is disposed between the lock members so as to be movable back and forth between a lock release position that pushes each annular lock member substantially parallel or close to substantially parallel and a lock position that is separated from the lock release position; And a spring member interposed between the housing and the operation member, and normally holds the operation member in the locked position,
With
As a normal state, in the other pole insertion portion, the other pole is pressed and locked in a substantially C shape by the annular locking members,
By pressing the operation button with one touch, the wedge-shaped portion pushes between the annular lock members in the other pole insertion portion, and unlocks the other pole.
A flexible lock unit characterized by that.   The pressing lock mechanism is passed through the other pole inserted through the insertion portion in the other pole insertion portion, and is disposed on the outer side of each annular lock member on the other pole. And a pair of cylindrical pressing members for obliquely guiding and guiding each of the annular locking members in a substantially C shape, and an operation member mounting in the other pole insertion portion. A guide stopper that is arranged and fixed at a position facing the portion, and that the surface facing each of the annular lock members is formed obliquely in a substantially C shape, and that each of the annular lock members is supported and guided obliquely in a substantially C shape. The other pole insertion portion is disposed outside each cylindrical pressing member, presses each cylindrical pressing member inward, and each oblique surface of each cylindrical pressing member and the guide stopper Between each diagonal face Flexible locking unit according to claim 1 and a pair of coil springs for pressing the shape of a substantially C serial each annular locking member relative to the telescopic side poles.   An operating member mounting portion is formed in a convex shape with a predetermined thickness on the outer peripheral surface of the other pole insertion portion of the housing, and a through hole is loaded in the approximate center of the operating member mounting portion, and coil springs are loaded as spring members on both sides thereof. Grooves are respectively formed, and the operation member has an operation button formed in a case shape or a plate shape, a wedge-shaped portion at the approximate center of the inner surface of the operation button, and convex portions on both sides thereof. The wedge-shaped member is inserted into the through-hole, and each convex portion is disposed in each groove via a coil spring and attached to the operation member mounting portion of the housing. 2. The flexible lock unit according to 2.

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