JP2005204587A - Telescopic rod - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a telescopic rod capable of fitting tapered faces 18 and 26 with each other at a proper strength even if an inner rod 16 is taken out from an outer rod 14 with great force. <P>SOLUTION: A handle 10 for a spoon net as the telescopic rod has the outer rod 14 and the inner rod 16 stored in the inside of the outer rod 14 so as to be freely slid. The tapered face 18 tapered to the tip is formed on the inner face of the tip part of the outer rod 14, and the tapered face 26 to be fitted on the tapered face 18 of the outer rod 14 is formed on the outer periphery of the rear part of the inner rod 16. An elastic member 32 to be pressurized and brought into contact with the tapered face 18 of the outer rid 14 is attached through a protective member 34 to the rear end part of the inner rod 16. As a result, when the inner rod 16 is taken out from the outer rod 14, the elastic member 32 is slid while being pressurized and keeping contact with the tapered face 18 to reduce the momentum for taking out the inner rod 16 by the frictional resistance. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a swinging rod that enables use of a fishing rod or the like by swinging out an inner tube accommodated inside the outer tube.

As a handle or fishing rod to which a ball net is attached, a swinging rod in which a plurality of tubular bodies are spliced together is widely used (see Patent Document 1). This swing rod is formed on the inner surface of the tip of the outer tube by slidably storing the inner tube with a small diameter inside the outer tube with a large diameter, and in use, by swinging the inner tube out of the outer tube. The tapered surface and the tapered surface formed on the outer surface of the rear end portion of the inner tube are fitted together.
Actual Kaihei 2-3256

  In the conventional general swing rod, when the inner tube is vigorously swung out from the outer tube, the tapered surfaces may be fitted more strongly than necessary. In this case, it becomes difficult to release the fitting state and accommodate the inner tube again. If the forcible housing is forcibly accommodated, the swinging rod may be damaged.

  Therefore, a main object of the present invention is to provide a swing rod that can fit the tapered surfaces with an appropriate strength even when the inner tube is swinged out vigorously.

  The invention described in claim 1 is provided with “the outer tube 14 and the inner tube 16 slidably accommodated inside the outer tube 14, and the inner diameter of the outer end of the outer tube 14 is reduced toward the front. In the swing rods 10 and 42, the rear end portion of the inner tube 16 is formed on the outer surface of the rear end portion of the inner tube 16. The swing rods 10 and 42 "are characterized in that elastic members 32 and 44 that are pressed against the tapered surface 18 of the outer tube 14 are mounted.

  In the present invention, when the inner tube 16 is swung out from the outer tube 14, the elastic members 32 and 44 attached to the rear end portion of the inner tube 16 are slid while being pressed against the tapered surface 18 of the outer tube 14. Accordingly, the momentum of swinging out the inner tube 16 is suppressed by the frictional resistance due to the pressure contact.

  The invention described in claim 2 is the “swing barb 10, 42” described in claim 1, wherein “a step portion 20 is formed on the inner surface of the distal end portion of the outer tube 14, and the outer surface of the rear end portion of the inner tube 16 is formed. Is formed with a locking portion 28 to be locked to the stepped portion 20 ".

  In the present invention, even when the force to swing out the inner tube 16 from the outer tube 14 is too strong, the locking portion 28 of the inner tube 16 is locked to the step portion 20 of the outer tube 14, so The inner tube 16 is stopped. Therefore, the tapered surfaces 18 and 26 are not fitted more strongly than necessary.

  According to the third aspect of the present invention, in the “swing barb 10, 42” described in the first or second aspect, “the locking portion 28 is formed ahead of the tapered surface 26 of the inner tube 16, and the elastic members 32, 44. Is mounted behind the tapered surface 26 of the inner tube 16 ".

  In the present invention, since the inner tube 16 is held by the point where the locking part 28 is locked to the stepped part 20 and the point where the elastic members 32, 44 are pressed against the tapered surface 18, the tapered surfaces 18, 26 are Even when worn down, no rattling occurs.

  According to the fourth aspect of the present invention, in the “swing rod 10, 42” according to any one of the first to third aspects, the “holding members 34, 46 holding the elastic members 32, 44 are provided at the rear end of the inner tube 16. It is characterized in that it is joined to the part.

  In the present invention, the elastic members 32, 44 are held by the holding members 34, 46 joined to the rear end portion of the inner tube 16, so that the elastic members 32, 44 are mounted on the inner tube 16 itself. It is not necessary to form the groove 36 or the like.

  According to the invention described in claims 1 to 4, since the elastic member attached to the inner tube functions as a “brake”, the momentum when the inner tube is swung out from the outer tube can be suppressed. The tapered surface of the outer tube and the tapered surface of the inner tube are not fitted more strongly than necessary. Therefore, it is easy to release the fitting state between the tapered surfaces and accommodate the inner pipe again, and there is no fear of damaging the swing rod when the inner pipe is accommodated.

  1 and FIG. 2 is an example of a “shaking rod” according to the present invention, and is a kind of fishing tackle to which a ball net 12 for catching fish is attached. However, it is pointed out in advance that the “drawing rod” according to the present invention can be applied to a fishing rod 42 as shown in FIG. 10 in addition to the handle 10 for the net (FIGS. 1 and 2). deep.

  The handle 10 includes an outer tube 14 and an inner tube 16 having an outer diameter smaller than the inner diameter of the outer tube 14 and slidably accommodated inside the outer tube 14.

  As shown in FIG. 2, a tapered surface 18 is formed on the inner surface of the distal end portion of the outer tube 14, and the inner diameter of the outer tube 14 is formed at the tip of the tapered surface 18. The annular step portion 20 is formed by being slightly reduced. Further, as shown in FIG. 1, a grip 22 is attached to the outer surface of the outer tube 14, and a plug 24 is attached to the rear end portion of the outer tube 14.

  On the other hand, as shown in FIG. 2, a tapered surface 26 fitted to the tapered surface 18 of the outer tube 14 is formed on the outer surface of the rear end portion of the inner tube 16 so as to decrease in diameter toward the front. A locking portion 28 that is locked to the step portion 20 of the outer tube 14 is formed at the tip of the surface 26. That is, at the rear end portion of the inner tube 16, the thick portion 30 is secured by slightly increasing the outer diameter, and the tapered surface 26 is formed on the outer surface of the thick portion 30, and the thick portion An annular step formed at the tip of 30 is a locking portion 28.

  Further, as shown in FIG. 2, an O-ring 32 as an “elastic member” pressed against the tapered surface 18 of the outer tube 14 is attached to the rear end portion of the inner tube 16 via a holding member 34. A female screw member (not shown) to which the male screw member 12 a (FIG. 1) of the ball net 12 is screwed is attached to the distal end portion of the inner tube 16.

  In the holding member 34 (FIG. 2), a tubular groove portion 38 constituting a groove 36 in which the O-ring 32 is mounted and a tubular joint portion 40 joined to the inner surface of the end portion of the inner tube 16 are integrated with a synthetic resin or the like. The joint portion 40 is fitted into the inner surface of the end portion of the inner tube 16 and bonded thereto.

  The O-ring 32 (FIG. 2) functions as a “brake” that suppresses the momentum when the inner tube 16 is swung out from the outer tube 14, and when the O-ring 32 is mounted in the groove 36 of the holding member 34. The maximum outer diameter is set so as to contact the tapered surface 18 without contacting the inner surface of the main body portion (a portion excluding the tip of the tapered surface 18) 14a. This is for facilitating the swinging of the inner tube 16 and for suppressing the swinging force by the frictional resistance between the O-ring 32 and the tapered surface 18.

  When the handle 10 is not used, the inner tube 16 is accommodated inside the outer tube 14. And when using the handle | steering-wheel 10, after attaching the ball net 12 to the front-end | tip part of the inner pipe | tube 16, the inner pipe | tube 16 is shaken out from the outer pipe | tube 14 using the weight of the ball | bowl net 12. FIG. Then, as shown in FIG. 3 (A), since the frictional resistance between the O-ring 32 and the main body portion 14a of the outer tube 14 is small, the inner tube 16 is vigorously shaken out from the outer tube 14, and FIG. ), The O-ring 32 is brought into contact with the tapered surface 18 immediately before the tapered surface 18 of the outer tube 14 and the tapered surface 26 of the inner tube 16 are fitted, and thereafter, the O-ring 32 is tapered. It is slid while being in pressure contact with 18. Therefore, the momentum of swinging out is suppressed by the frictional resistance between the O-ring 32 and the taper surface 18, and the taper surface 18 and the taper surface 26 are fitted with an appropriate strength as shown in FIG.

  In a state where the tapered surfaces 18 and 26 are fitted with an appropriate strength, a gap A is secured between the stepped portion 20 and the locking portion 28. Therefore, even when the tapered surfaces 18 and 26 are worn away during long-term use, the fitting state with an appropriate strength is maintained by reducing the width of the gap A. Further, when the moment to swing out the inner tube 16 is too strong, the tapered surfaces 18 and 26 are strongly fitted to each other. However, as shown in FIG. Since the fitting strength becomes maximum when the outer tube 14 is locked to the stepped portion 20, there is no fear that the fitting becomes so strong that the release becomes difficult.

  In the above-described embodiment (FIGS. 1 and 2), the case where only one O-ring 32 is mounted is shown, but the number of O-rings 32 can be changed as appropriate, and as shown in FIG. May be “3” or “3 or more”. Moreover, as a joining aspect of the holding member 34, as shown in FIG. 5, the aspect which screws the male screw 40a and the female screw 30a may be employ | adopted. Furthermore, as shown in FIG. 6, a groove 36 may be formed directly on the outer surface of the thick portion 30, and an O-ring 32 may be attached to the groove 36.

  Further, in the above-described embodiment (FIGS. 1 and 2), the locking portion 28 is provided by securing the thick portion 30 in the inner tube 16, but the holding member 34 is provided as shown in FIG. A part of the protrusion may protrude from the outer surface of the inner tube 16, and this protrusion may be used as the locking portion 28. In this case, since the locking portion 28 is provided behind the tapered surface 26 of the inner tube 16, the step portion 20 is provided in the middle of the tapered surface 18 in the outer tube 14.

  In the above-described embodiment, the step 20 and the locking portion 28 limit the fitting strength between the tapered surfaces 18 and 26, but the tapered surfaces 18 and 26 are fitted more strongly than necessary. If there is no concern, the stepped portion 20 and the locking portion 28 may not be provided as shown in FIG. For example, when the “swinging rod” according to the present invention is applied to the fishing rod 42 (FIG. 10), it is not necessary to attach a heavy object (ball net 12) to the inner tube 16, so the inner tube 16 is swung out. The momentum is hardly excessive, and the necessity of providing the stepped portion 20 and the locking portion 28 is small (however, FIG. 10 shows a mode in which the stepped portion 20 and the locking portion 28 are provided). .

  Further, in the above-described embodiment, the O-ring 32 as the “elastic member” is attached to the rear end portion of the inner tube 16 via the holding member 34 (FIG. 2). The mounting mode is not particularly limited. For example, as shown in FIG. 9, a chip (hereinafter referred to as “elastic chip”) 44 made of an elastic material (rubber or the like) is adopted as the “elastic member”, and the elastic chip 44 is interposed via a holding member 46. You may make it mount to the rear-end part of the inner tube | pipe 16, and you may make it embed directly in the hole (illustration omitted) formed in the rear-end part of the inner tube | pipe 16.

It is a front view which shows a swing fence (pattern for ball nets). It is sectional drawing of a swing lever. It is sectional drawing which shows the state which shakes out an inner tube from an outer tube in steps. It is sectional drawing which shows the example which changed the number of O-rings. It is sectional drawing which shows the example which screw-joins a holding member. It is sectional drawing which shows the example which does not use a holding member. It is sectional drawing which shows the example which used the holding member as a latching | locking part. It is sectional drawing which shows the example which does not provide a step part and a latching | locking part. It is sectional drawing which shows the modification of an elastic member. It is a front view which shows another swing rod (fishing rod).

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Ball net pattern 12 ... Ball net 14 ... Outer pipe 16 ... Inner pipe 18, 26 ... Tapered surface 20 ... Step part 28 ... Locking part 30 ... Thick part 32 ... O-ring (elastic member)
34, 46 ... Holding member 36 ... Groove 42 ... Fishing rod 44 ... Elastic tip (elastic member)

Claims (4)

An outer tube, and an inner tube that is slidably accommodated inside the outer tube, and a tapered surface that is reduced in diameter toward the front is formed on the inner surface of the distal end portion of the outer tube. In the swing rod having a tapered surface fitted on the tapered surface of the outer tube on the outer surface of the end,
The swing rod according to claim 1, wherein an elastic member that is pressed against the tapered surface of the outer tube is attached to a rear end portion of the inner tube. The swing rod according to claim 1, wherein a stepped portion is formed on an inner surface of a distal end portion of the outer tube, and a locking portion is formed on an outer surface of a rear end portion of the inner tube to be locked to the stepped portion. The swing rod according to claim 2, wherein the locking portion is formed ahead of the tapered surface of the inner tube, and the elastic member is mounted rearward of the tapered surface of the inner tube. The swing rod according to any one of claims 1 to 3, wherein a holding member that holds the elastic member is joined to a rear end portion of the inner tube.

Images