JP2010002149A - Telescopic bar - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a telescopic bar which can be locked when drawn out and contracted, and can manually release the lock in all cases. <P>SOLUTION: The telescopic bar 1 comprises a first bar-shaped body 10 and a second bar-shaped body 40 storing the first bar-shaped body 10. The rear part of the first bar-shaped body 10 has a lock recessed part 36 and a lock member 31 protruded from the peripheral face by the elasticity of an elastic member 33. The second bar-shaped body 40 has a lock piece 67 for locking the lock recessed part 36 to lock the first bar-shaped body 10 during the storage of the first bar-shaped body 10 and a lock groove 48 for locking the lock member 31 to lock the first bar-shaped body 10 when the first bar-shaped body 10 is drawn out. The second bar-shaped body 40 is further provided with a release means 70 for releasing the lock when the first bar-shaped body 10 is stored or drawn out. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a telescopic rod that can be expanded and contracted, can be locked in an extended state and a contracted state, and can be easily released by an operating means at hand.

  A conventional telescopic rod includes a tip tube, a middle tube that houses the tip tube, and a base tube that houses the middle tube, and has a structure that can be expanded and contracted. The tip cylinder is provided with first and second lock plates that protrude from the peripheral surface due to the elasticity of the elastic member. The middle cylinder is provided with a third lock plate that protrudes from the peripheral surface due to the elasticity of the elastic member. The intermediate cylinder is formed with an annular groove for engaging the first and second lock plates when the tip cylinder is pulled out. The original cylinder is formed with an annular groove for engaging the third lock plate when the middle cylinder is pulled out. The middle cylinder is formed with hemispherical protrusions that release the locking of the first and second lock plates when the tip cylinder is rotated. The tip tube is provided with a guide pin for releasing the locking of the third lock plate. This conventional telescopic rod is provided with a magnet to prevent inadvertent pulling out during storage (for example, Patent Document 1).

The conventional telescopic rod can be pulled out (stretched) against the magnetic force of the magnet, and when pulled out (stretched), the tip cylinder has the first and second lock plates locked in the annular groove of the middle cylinder. The middle cylinder is locked with the third lock plate locked in the annular groove of the original cylinder, and the expanded state is maintained. Further, in the conventional telescopic rod, when the tip tube is rotated in the pulled out (stretched) state, the hemispherical projections unlock the first and second lock plates to release the lock, and push the tip tube. And the guide pin can release the lock of the third lock plate to release the lock, and the tip cylinder can be accommodated (contracted) in the middle cylinder and the middle cylinder in the original cylinder.
Japanese Patent No. 2970900

  Since the conventional telescopic rod is held in the retracted (shrinked) state by the magnet's attracting force, there is a problem that it is pulled out when a force greater than the magnet's attracting force is applied. Further, when the magnet's attractive force is weakened, there is a problem that it is difficult to maintain the housed (shrinked) state. In addition, the conventional telescopic rod can be locked when it is pulled out (stretched), but it can be unlocked by rotating the tip tube, so it can be used by applying some force to the tip tube. There was a problem that the lock was suddenly released and could shrink. In particular, the conventional telescopic rod can be used as a baton, but when it is pulled out (stretched), the tip tube is caught by a thief, the lock is released, and there is a possibility that it will not function as a baton. In addition, as described above, the conventional telescopic rod uses a magnet in order to maintain the stored state. However, since a magnet with a considerably strong magnetic force is used, it adversely affects electronic parts such as magnetic cards and pacemakers. When used as a baton, there was a problem that it would lead to threatening the human body and property that should be protected originally.

  The present invention has been devised in view of the above-mentioned problems, and does not use a magnetic card or a magnet that adversely affects electronic components, and is housed (shrinked) when it is pulled out (stretched). It is an object of the present invention to provide a telescopic bar that can be locked even in the state of being in a state of being able to be unlocked entirely at hand.

  In order to achieve the above object, the telescopic rod according to claim 1 of the present application includes a first rod-shaped body and a second rod-shaped body that houses the first rod-shaped body, and the first rod-shaped body has a rear portion. A locking recess and a locking member that protrudes from the peripheral surface due to the elasticity of the elastic member, and the second rod-shaped body locks the locking recess when the first rod-shaped body is stored. There are provided a locking piece for locking the first rod-shaped body, a locking groove for locking the first rod-shaped body by locking the locking member when the first rod-shaped body is pulled out, and The second rod-shaped body is provided with release means for releasing the lock when the first rod-shaped body is stored and pulled out.

  In order to achieve the above object, the telescopic bar according to claim 2 of the present invention includes: an operation button; a release shaft connected to the operation button; a release member provided on the operation button or the release shaft; And an elastic member that urges the release means in the anti-release direction. When the release means is moved in the release direction against the elastic member, the first rod-like body is engaged when the first rod-like body is stored. The first bar-shaped body is unlocked by the release member, and the first bar-shaped body is unlocked by unlocking the locking piece locking the first bar-shaped body by locking the locking recess. The first rod-shaped body is released when the release shaft is unlocked to lock the locking member that locks the first rod-shaped body by locking the locking groove of the second rod-shaped body at the time of drawing. It is characterized by releasing the lock.

When the first rod-shaped body is housed in the second rod-shaped body, the telescopic rod according to the present invention is in a contracted state, and the locking recess of the first rod-shaped body is engaged with the locking piece of the second rod-shaped body. Stopped and locked in a contracted state. Further, when the first rod-shaped body is pulled out from the second rod-shaped body, the first rod-shaped body is extended, and the locking member of the first rod-shaped body is locked in the locking groove of the second rod-shaped body, and in the extended state Locked.
As described above, since the telescopic rod according to the present invention can be locked in an extended state and a contracted state, it can be used stably without being expanded or contracted even when an unexpected load is applied. There is. Further, since the telescopic rod according to the present invention does not require a magnet, it has an effect of not adversely affecting a magnetic card, a precision electronic component, and the like.

  The telescopic rod according to the present invention can be easily unlocked by the releasing means in the extended state and the contracted state. That is, when the operation button is operated against the elasticity of the elastic member, the release shaft and the release member are operated. The release shaft releases the locking of the locking member that locks the first rod-shaped body by locking the locking groove of the second rod-shaped body when the first rod-shaped body is pulled out. Unlock the rod. The releasing member releases the locking of the locking piece locking the first rod-shaped body by locking the locking recess of the first rod-shaped body when the first rod-shaped body is stored, thereby releasing the first rod-shaped body. Unlock your body. Thus, the telescopic rod according to the present invention releases the lock by the release means, so that the lock is released even when some force acts on the first rod-like body when it is pulled out and stored. Therefore, the function is not impaired during use, and there is an effect that it can be used with confidence. Moreover, it is possible to provide a releasing means at hand, and there is an effect that the releasing operation becomes easy.

  An embodiment of the telescopic rod according to the present invention will be described with reference to FIGS. FIG. 1 is an overall side view of a state where the telescopic bar is extended. FIG. 2 is an overall side view of a state where the telescopic bar is contracted. 3 is a side cross-sectional view of the main part of FIG. FIG. 4 is a side cross-sectional view of the main part of FIG. FIG. 5 is an explanatory diagram of a locking member. FIG. 6 is an explanatory view of a locking piece. FIG. 7 is an explanatory diagram for releasing the lock in the pulled-out state. FIG. 8 is an explanatory diagram for releasing the lock in the contracted state. FIG. 9 is an explanatory diagram of a bag.

  The telescopic rod 1 includes a first rod-like body 10 and a second rod-like body 40 that houses the first rod-like body 10. The first rod-like body 10 is provided with a locking recess 36 and a locking member 31 protruding from the peripheral surface due to the elasticity of the elastic member 33 at the rear part. The second rod-shaped body 40 includes a locking piece 67 that locks the locking recess 36 and locks the first rod-shaped body 10 when the first rod-shaped body 10 is stored, and a first rod-shaped body. A locking groove 48 that locks the first rod-like body 10 by locking the locking member 31 when the 10 is pulled out is provided. Further, the second rod-like body 40 is provided with a releasing means 70 for releasing the lock when the first rod-like body 10 is stored and pulled out.

  The release means 70 includes an operation button 72, a release shaft 71 connected to the operation button 72, a release member 76 provided on the operation button 72 or the release shaft 71, and a biasing means 70 in the anti-release direction. And an elastic member 75. When the release means 70 moves in the release direction against the elastic member 75, the first recess 10 locks the locking recess 36 of the first rod 10 when the first rod 10 is stored. The release member 76 releases the locking of the locking piece 67 that locks the first rod-shaped body 10 and unlocks the first rod-shaped body 10. Further, the release means 70 locks the first rod-shaped body 10 by locking the locking groove 48 of the second rod-shaped body 40 when the first rod-shaped body 10 is pulled out. The locking of the member 31 is released by the release shaft 71 to unlock the first rod-shaped body 10.

  The telescopic rod 1 is in a contracted state when the first rod-like body 10 is accommodated in the second rod-like body 40, and the latching recess 36 of the first rod-like body 10 is a latch piece of the second rod-like body 40. It is locked to 67 and locked in a contracted state. Further, when the first rod-shaped body 10 is pulled out from the second rod-shaped body 40, the first rod-shaped body 10 is extended, and the locking member 31 of the first rod-shaped body 10 is locked in the locking groove 48 of the second rod-shaped body 40. And locked in the extended state. As described above, since the telescopic rod 1 can be locked in an extended state and a contracted state, it can be used stably without being expanded or contracted even when an unexpected load is applied.

  The telescopic rod 1 can be easily unlocked by the releasing means 70 in the extended state and the contracted state. That is, when the operation button 72 is operated against the elasticity of the elastic member 75, the release shaft 71 and the release member 76 are operated. The release shaft 71 releases the locking of the locking member 31 that locks the first rod-shaped body 10 by locking the locking groove 48 of the second rod-shaped body 40 when the first rod-shaped body 10 is pulled out. Then, the lock of the first rod-shaped body 10 is released. The release member 76 releases the locking of the locking piece 67 that locks the first rod-shaped body 10 by locking the locking recess 36 of the first rod-shaped body 10 when the first rod-shaped body 10 is stored. Then, the lock of the first rod-shaped body 10 is released. As described above, since the telescopic rod 1 is unlocked by the release means 70, the lock is released even when some force is applied to the first rod-like body 10 when it is pulled out and stored. Therefore, the function is not impaired during use, and it can be used with confidence. Moreover, the release means 70 can be provided at hand, and the release operation is facilitated.

  Further, the telescopic rod 1 will be described in detail. As shown in FIGS. 1 and 3, the telescopic rod 1 includes a first rod-shaped body 10 and a second rod-shaped body 40 that houses the first rod-shaped body 10. The first rod-like body 10 is attached to a cylindrical main body 11, a buffer member 15 attached to the front end (A direction end) 12 of the cylindrical main body 11, and a rear end (B direction end) 13 of the cylindrical main body 11. The locking member 20 is formed. The cylindrical main body 11 is formed of a hard material such as an aluminum alloy or hard plastic, and has female threads formed on the inner surface on the opening side of the front end 12 and the inner surface on the opening side of the rear end 13.

  As shown in FIG. 4, the buffer member 15 includes a core body 16, a male screw 17 formed on the core body 16, and a cap member 18 attached so as to entirely cover the core body 16. The core body 16 and the male screw 17 are integrally formed of a hard material such as an aluminum alloy or hard plastic. The cap member 18 is made of an elastic material such as rubber or soft plastic.

  As shown in FIG. 3, the lock member 20 is made of a hard material such as an aluminum alloy or hard plastic, and has a circular shaft body 21 having a diameter larger than that of the cylindrical body 11 and a rear end (end in the B direction) of the circular shaft body 21. ) And a male screw 23 formed at the front end (end in the A direction) of the circular shaft main body 21. The lock member 20 is formed with an insertion hole 25 having a circular cross section centered on the axis of the lock member 20 so as to penetrate in the axial direction. Circumferential grooves 26 and 26 are formed on both sides of the outer peripheral surface of the circular shaft main body 21 in the circumferential direction, and a seal member 27 such as an O-ring is attached to the circumferential groove 26. The rear end (end in the B direction) 22a of the small diameter portion 22 is formed with a recess 24 for loosely fitting a cylindrical main body 76a described later.

  Moreover, as shown in FIG. 5, the circular-axis main body 21 has a storage recess 29 formed in the diameter direction. In the storage recess 29, a locking member 31 whose tip 32 protrudes from the storage recess 29 is stored by an elastic member 33 such as a spring. The tip 32 is curved and has a curved surface that is substantially the same as the outer peripheral surface of the circular axis body 21.

  The locking member 31 is formed with a locking hole 35 having substantially the same diameter as the insertion hole 25. The locking hole 35 has a center substantially the same as the center of the insertion hole 25 when the distal end 32 of the locking member 31 is substantially at the same position as the circumferential surface of the circular shaft body 21, and the distal end 32 of the locking member 31. Is formed so that the center is deviated from the center of the insertion hole 25 when it is in a position protruding from the peripheral surface of the circular shaft body 21. As shown in FIG. 3, a locking recess 36 is formed on the outer peripheral surface of the small diameter portion 22 in the circumferential direction. In the first rod-like body 10, the male screw 17 of the buffer member 15 is screwed into the opening of the front end 12 of the cylindrical main body 11, and the male screw 23 of the lock member 20 is screwed into the rear end 13 opening of the cylindrical main body 11. It is formed by wearing.

  As shown in FIG. 4, the second rod-shaped body 40 includes a cylindrical main body 41, a retaining member 45 attached to the front end (A-direction end) 42 of the cylindrical main body 41, and the rear end of the cylindrical main body 41. The lid member 60 is attached to the (end in the B direction) 43. The cylindrical main body 41 is made of a hard material such as an aluminum alloy or hard plastic, and has female threads formed on the inner surface on the opening side of the front end 42 and the inner surface on the opening side of the rear end 43. A step recess 44 is formed on the inner surface on the opening side of the front end 42, and a female screw is formed in the step recess 44. Further, a locking groove 48 having a U-shaped cross section is formed in an annular shape adjacent to the stepped recess 44 on the inner peripheral surface on the opening side of the front end 42 of the cylindrical main body 41.

  As shown in FIG. 3, the retaining member 45 is formed in a ring shape, and the inner diameter is slightly larger than the outer diameter of the first rod-shaped body 10 and smaller than the outer diameter of the circular shaft body 21 of the lock member 20. Has been. The retaining member 45 has a large-diameter portion 46 and a small-diameter portion 47 formed on the outer peripheral surface, and a male screw 49 is formed on the small-diameter portion 47. The retaining member 45 is attached by screwing a male screw 49 into the opening on the front end 42 side of the cylindrical main body 41.

  As shown in FIG. 3, the lid member 60 is formed of a hard material such as aluminum alloy or hard plastic, and is provided at the base 61 having a larger diameter than the cylindrical main body 41 and the front end (end in the A direction) of the base 61. A guide hole 63 having substantially the same diameter and the same center as that of the insertion hole 25 is formed at the substantially center. Further, the cover member 60 is formed with a storage recess 65 for storing an elastic member 75 such as a spring and a guide recess 66 for guiding an operation button 72 described later. That is, the cover member 60 is formed with a storage recess 65 having a diameter larger than that of the guide hole 63 continuously from the guide hole 63, and having a guide recess 66 having a diameter larger than that of the storage recess 65 continuously from the storage recess 65. Yes. As shown in FIG. 6, a locking plate 64 is attached to the front end (end in the A direction) of the lid member 60 (male screw 62) with screws or the like. The locking plate 64 includes a substantially triangular substrate 68 and locking pieces 67 provided at three locations of the substrate 68, and is formed by bending a thin metal plate. As shown in FIG. 3, the locking piece 67 is provided with a locking projection 69 at the tip. As shown in FIG. 6, the substrate 68 is formed with an insertion hole 68 a through which a later-described release shaft 71 is inserted.

  The lid member 60 is provided with release means 70. The release means 70 attaches the operation button 72, the release shaft 71 connected to the operation button 72, the locking release member 76 provided on the release shaft 71, and the release means 70 in the opposite release direction (B direction). And an elastic member 75 for energizing. As shown in FIG. 4, a release shaft 71 is attached to the guide hole 63 of the lid member 60 so as to be slidable in the axial direction. The release shaft 71 has an operation button 72 attached to the rear end (end in the B direction) and a conical tapered surface 73 formed at the front end (end in the A direction). The operation button 72 is formed in a disc shape and is guided by the guide recess 66 of the lid member 60. An elastic member 75 such as a spring for urging the operation button 72 rearward (B direction) is provided in the housing recess 65 of the lid member 60. A cylindrical locking release member 76 that is a release shaft 71 and is fixed to the front portion of the lid member 60 by a screw. As described above, the operation button 72 is urged rearward (in the B direction) by the elastic member 75, but the locking release member 76 is pressed against the lid member 60, and thus remains stationary at a predetermined position. The locking release member 76 includes a cylindrical main body 76a, a release piece 79 formed at the rear end (end in the B direction) of the cylindrical main body 76a, and a pressing piece 77 formed at an intermediate portion of the cylindrical main body 76a. Become. The release piece 79 is formed in a disc shape, and slides into contact with the locking piece 67 to move the locking projection 69 in the anti-locking direction when moving forward (A direction). Further, the pressing piece 77 is formed in a drum shape having a smaller diameter than the release piece 79, and abuts against the rear end (B-direction end) 22a of the lock member 20 when moving forward (A direction) to move the lock member 20 forward ( Extrude in direction A).

  As shown in FIG. 1, a collar 80 is attached to the second rod-shaped body 40. As shown in FIG. 9, the flange 80 includes a rhombus-shaped first flange member 81 and a second flange member 82. The first flange member 81 is fixed to the second rod-shaped body 40 with screws or the like. The 2nd collar member 82 is attached to the 1st collar member 81 so that rotation is possible. When the second collar member 82 is rotated in one direction (counterclockwise), the first collar member 81 is overlapped and closed, and when the second collar member 82 is rotated in the other direction (clockwise), the second collar member 82 is closed. It becomes a state of opening in a substantially cross shape with one flange member 81. Positioning means is provided between the second collar member 82 and the first collar member 81 for positioning the second collar member 82 in a closed state and further positioning the second collar member 82 in an open state. It has been. The positioning means includes a convex portion urged by an elastic member such as a spring and a concave portion that engages and disengages the convex portion, but is not particularly limited to this configuration.

  The telescopic rod 1 has the above configuration and is assembled as follows. The first rod-like body 10 has a retaining member 45 slidably attached to the cylindrical main body 11, and the male screw 17 of the buffer member 15 is screwed into the opening of the front end 12 of the cylindrical main body 11. It is assembled by screwing the male screw 23 of the locking member 20 into the rear end 13 opening. In addition, it is desirable to install the seal members 27 and 27 in the circumferential grooves 26 and 26 of the lock member 20.

  The lid member 60 is assembled as follows. When the elastic member 75 is housed in the housing recess 65 of the lid member 60 and the release shaft 71 is slidably inserted into the guide hole 63 of the lid member 60, the operation button 72 is guided to the guide recess 66. The operation button 72 is pushed to a predetermined position against the elasticity of the elastic member 75, and the locking release member 76 is fixed to the release shaft 71. The operation button 72 is urged rearward (direction B protruding from the lid member 60) by the elastic member 75, but the locking release member 76 comes into contact with the lid member 60, so that it stops in this state. The release piece 79 of the lock release member 76 is in contact with the substrate 68 of the lock plate 64 and is located behind (in the B direction) the lock protrusion 69 of the lock piece 67. The second rod-shaped body 40 is assembled by screwing the male screw 62 of the lid member 60 into the opening of the rear end 43 of the cylindrical main body 41.

  The lock member 20 side of the first rod-shaped body 10 is inserted from the opening of the front end 42 of the cylindrical main body 41 of the second rod-shaped body 40. In this insertion, the elastic member 33 is stored in the storage recess 29 of the lock member 20, and then the locking member 31 is stored. The locking member 31 does not jump out of the storage recess 29 due to the elasticity of the elastic member. Do this while holding down. When inserted as described above, the locking member 31 is locked in the locking groove 48, and the first rod-shaped body 10 is locked to the second rod-shaped body 40. The male screw 49 of the retaining member 45 is screwed into the opening on the front end 42 side of the cylindrical main body 41. The first rod-shaped body 10 does not come out of the second rod-shaped body 40 because the circular shaft main body 21 of the lock member 20 contacts the tip (end in the B direction) 51 of the retaining member 45. In this way, the telescopic rod 1 is assembled. The seal members 27 and 27 of the lock member 20 are in sliding contact with the inner peripheral surface of the cylindrical main body 41 of the second rod-shaped body 40 when the first rod-shaped body 10 is expanded and contracted. Prevent rattling

  As shown in FIG. 3, in the telescopic rod 1, when the first rod-like body 10 is pulled out and extended, the distal end 32 of the locking member 31 that is constantly biased by the elastic member 33 is the second rod-like body 40. It is locked in the locking groove 48 and locked in this pulled out state. The extended state of the telescopic bar 1 is maintained unless the locking member 31 is unlocked. The release shaft 71 extends at the tip to the position of the insertion hole 25 of the lock member 20, but does not reach the position where the lock hole 35 of the lock member 31 is locked.

  As shown in FIG. 7, when the operation button 72 of the release means 70 is pressed against the elasticity of the elastic member 75, the release shaft 71 moves forward (A direction). When the tapered surface 73 formed at the distal end of the release shaft 71 enters the engagement hole 35 of the engagement member 31 and the release shaft 71 completely enters the engagement hole 35, the distal end 32 of the engagement member 31 engages. Detach from the stop groove 48. That is, the locking state of the locking member 31 with respect to the locking groove 48 is released, and the lock is released. In this state, the first rod-shaped body 10 can be moved backward (B direction) and stored in the second rod-shaped body 40. During the storage, the release shaft 71 is inserted into the locking hole 35 of the locking member 31, so that the locking member 31 does not protrude from the storage recess 29 of the lock member 20.

  As shown in FIG. 4, when the first rod-shaped body 10 is accommodated in the second rod-shaped body 40, the locking recesses 36 of the locking member 20 are locked with the locking protrusions 69 of the locking pieces 67 attached to the lid member 60. And is locked in this contracted state. At this time, the cylindrical main body 76 a is accommodated in the recess 24 of the lock member 20. The telescopic rod 1 is kept in the contracted state unless the locking piece 67 is unlocked.

  As shown in FIG. 8, when the operation button 72 of the release means 70 is pressed against the elasticity of the elastic member 75, the lock release member 76 moves forward (A direction). The release piece 79 pushes up the locking piece 67 from the inside to the outside, and the locking projection 69 is detached from the locking recess 36. That is, the locking state of the locking piece 67 with respect to the locking recess 36 is released, and the lock is released. At substantially the same time as the lock is released, the pressing piece 77 comes into contact with the rear end (end in the B direction) 22a of the lock member 20 and pushes the first rod-like body 10 forward (A direction). Since the first rod-like body 10 is pushed forward (A direction), even if the locking projection 69 returns due to the elasticity of the material, the first rod-shaped body 10 is not locked to the locking recess 36 and is in an unlocked state. . Therefore, the first rod-shaped body 10 can be easily pulled out from the second rod-shaped body 40. Therefore, the telescopic rod 1 can project the first rod-like body 10 only by gripping and shaking the second rod-like body 40.

  An elastic member 78 such as a spring is attached to the front end (end in the A direction) of the cylindrical main body 76a, and the lock member 20, that is, the first rod-like body 10 is pushed forward (A direction) by the elasticity of the elastic member 78. Of course, it does not matter. If it does in this way, as above-mentioned, the lock | rock will be cancelled | released, and the elastic member 78 will push the 1st rod-shaped body 10 ahead (A direction). Further, the release piece 79 is thickened, the front end (end in the A direction) of the release piece 79 is brought into contact with the rear end (end in the B direction) 22a of the lock member 20, and the first rod-like body 10 is moved forward (A direction). If pushed out, the pressing piece 77 becomes unnecessary. When the first rod 10 is pulled out and extended, the telescopic rod 1 is always urged by the elastic member 33 as shown in FIG. The leading end 32 of the locking member 31 is locked in the locking groove 48 of the second rod-shaped body 40 and locked in this pulled out state.

  In the above embodiment, the seal members 27 are mounted on both sides of the circular shaft main body 21 of the lock member 20, but one seal member 28 is placed near the opening of the front end 42 of the second rod-shaped body 40 as shown in FIG. It may be attached. In this case, the retaining member 45 is formed so that the length of the small-diameter portion 47 is shorter than the stepped recess 44 formed on the opening side inner surface of the front end 42 of the cylindrical body 41, and the male screw 49 is connected to the front end 42 of the cylindrical body 41. When screwed into the side opening, a space 53 is formed between the tip 51 of the small diameter portion 47 and the stepped recess 44. The seal member 53 is attached to the space 53. The seal member 53 is in sliding contact with the outer peripheral surface of the first rod-shaped body 10. As shown in FIG. 11, when the first rod-shaped body 10 is accommodated in the second rod-shaped body 40, both sides of the first rod-shaped body 10 are stably held by the seal members 27 and 28, and the backlash is reduced. It can be surely prevented.

  Thus, the telescopic rod 1 is locked when the first rod-shaped body 10 is housed in the second rod-shaped body 40 and when the first rod-shaped body 10 is pulled out from the second rod-shaped body 40. This lock state can be easily released by the release means 70 attached to the rear end (end in the B direction) of the second rod-shaped body 40. This telescopic rod 1 can be used as a warning rod. As shown in FIGS. 1 and 2, the rear end (end in the B direction) side from the heel 80 is the grip portion 83, and the front end (end in the A direction) side from the heel 80 is the sword portion 85. As described above, the sword portion 85 expands and contracts and can be locked when the sword portion 85 is extended and contracted, and all the locked states can be released on the grip portion 83 side. Therefore, the telescopic rod 1 can be used with peace of mind because when it is pulled out (stretched) or contracted (stored), the lock will not be released even if the tip is caught by a thug. .

  The telescopic rod according to the present invention can be used as a baton.

It is the whole side view of the state where the telescopic bar was extended. It is the whole side view of the state where the expansion-contraction bar was contracted. It is principal part side surface sectional drawing of FIG. FIG. 3 is a side sectional view of a main part of FIG. It is explanatory drawing of a locking member. It is explanatory drawing of a locking piece. It is explanatory drawing which cancels | releases the lock | rock of the state pulled out. It is explanatory drawing which cancels | releases the lock | rock of the contracted state. It is explanatory drawing of a cocoon. It is the whole side view of the state where the expansion-contraction rod which shows other embodiment was extended. It is a whole side view of the state which contracted the expansion-contraction rod of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Telescopic rod 10 1st rod-shaped body 11 Cylindrical main body 12 Front end (A direction end)
13 Rear end (end in B direction)
DESCRIPTION OF SYMBOLS 15 Buffer member 16 Core body 17 Male screw 18 Cap member 20 Lock member 21 Circular-axis main body 22 Small diameter part 22a Rear end (B direction end)
23 male screw 24 recess 25 insertion hole 26 circumferential groove 27 seal member 28 seal member 29 storage recess 31 locking member 32 tip 33 elastic member 35 locking hole 36 locking recess 40 second rod-like body 41 cylindrical main body 42 front end (A direction end)
43 Rear end (B direction end)
44 Step recess 45 Retaining member 46 Large diameter portion 47 Small diameter portion 48 Locking groove 49 Male screw 51 Tip 53 Space 60 Lid member 61 Base 62 Male screw 63 Guide hole 64 Locking plate 65 Storage recess 66 Guide recess 67 Locking piece 68 Substrate 68a Insertion hole 69 Locking projection 70 Release means 71 Release shaft 72 Operation button 73 Tapered surface 75 Elastic member 76 Lock release member 76a Cylindrical body 77 Pressing piece 78 Elastic member 79 Release piece 80 ８１ 81 First hook member 82 Second scissors 83 Hand grip 85 Sword

Claims (2)

A first rod-shaped body and a second rod-shaped body that houses the first rod-shaped body;
The first rod-shaped body is provided with a locking recess at the rear part and a locking member protruding from the peripheral surface due to the elasticity of the elastic member,
The second rod-shaped body includes a locking piece that locks the first rod-shaped body by locking the locking recess when the first rod-shaped body is housed, and the engagement when the first rod-shaped body is pulled out. A locking groove for locking the first rod-shaped body by locking the locking member is provided,
Further, the second rod-shaped body is provided with a releasing means for releasing the lock when the first rod-shaped body is stored and pulled out. The release means includes an operation button, a release shaft connected to the operation button, a release member provided on the operation button or the release shaft, and an elastic member that urges the release means in the reverse release direction.
When the release means is moved in the release direction against the elastic member,
When the first rod-shaped body is housed, the release member unlocks the latching piece that locks the locking recess of the first rod-shaped body to lock the first rod-shaped body. To unlock the first rod,
The release shaft releases the locking of the locking member that locks the first rod-shaped body by locking the locking groove of the second rod-shaped body when the first rod-shaped body is pulled out. The telescopic rod according to claim 1, wherein the first rod-shaped body is unlocked.

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