JP2590862Y2 - Telescopic fishing rod - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic fishing rod, and more particularly to a fixing mechanism for a telescopic original rod.

[0002]

2. Description of the Related Art In general, telescopic fishing rods are known which are capable of adjusting the length of a fishing rod by providing an extendable telescopic former rod portion in a tubular portion provided on the base end side of the former rod. .

FIG. 10 is a view showing a conventional mechanism for fixing a telescopic rod. In the figure, reference numeral 101 denotes a cylindrical portion formed on the base end side of the former rod. An extensible rod portion 102 is housed in the cylindrical portion 101, and an eccentric portion 10 is attached to the distal end side of the extensible rod portion 102.
2a is formed. The contact member 103 abuts on the eccentric part 102a, and the contact member 103 presses the inner wall of the cylindrical part 101 by the eccentric position of the eccentric part 102a. As a result, the position of the extensible rod portion 102 is fixed to the cylindrical portion 101.

FIG. 11 is a view showing another example of a conventional mechanism for fixing an extensible rod. In the figure, reference numeral 201 denotes an engaging cylinder provided at the base end of a base rod (not shown). The engaging cylinder 201 has a locking portion 201a and a notch 201b. An expansion / contraction rod portion 202 is provided on the outer periphery of the engagement cylinder 201, and a locking portion 2 is provided on the inner periphery thereof.
01a are formed with engagement surfaces 202a, 202a. Thus, when expanding and contracting the extensible original rod portion 202 with respect to the original rod, the extensible rod original portion 202 and the original rod are relatively rotated, so that the cutout portion 201b and the engagement surface 202a face each other, The length position of the telescopic former rod portion 202 and the former rod is adjusted. Then, the telescopic former rod portion 202 and the former rod are relatively rotated at a desired position, and the locking portion 201a is engaged with the engaging surface 202.
The position of the telescopic former rod portion 202 can be fixed by being pressed to the position a.

[0005]

However, in the configuration shown in the above-described drawings, when water enters the inside of the main rod, the water acts as a lubricant, and the contact member, the inner wall of the cylindrical portion, and the contact member. Slip occurs between the eccentric part and the eccentric part, and it becomes impossible to fix. In addition, there is a problem that the locking effect depends on the surface roughness of the inner wall of the cylindrical portion and that the locking varies. Further, the configuration shown in FIG. 11 has a problem that the angle at which the lock works is narrow, and the lock is released by a slight force in the opposite direction.

The present invention has been made in view of the above-mentioned problems, and has as its object to provide a telescopic fishing rod capable of easily and reliably fixing an extensible rod.

[0007]

SUMMARY OF THE INVENTION The present invention is directed to a telescopic fishing rod having a telescopic original rod portion retractably accommodated in a tube portion on the base end side of a former rod, wherein the eccentric portion is formed in the telescopic former rod portion. A leaf spring is housed in a gap formed by the eccentric portion and the tubular portion, and the leaf spring presses an inner peripheral wall of the tubular portion by an eccentric position of the eccentric portion.

[0008]

When adjusting the position of the expansion / contraction rod, the main rod or the expansion / contraction rod is rotated relatively to each other so that the leaf spring does not press the inner peripheral wall of the cylinder. In this state, the telescopic former rod portion is expanded and contracted with respect to the former rod. After that, at the desired position, the former rod or telescopic former rod part is rotated relative to each other,
The leaf spring presses the inner peripheral wall of the cylindrical portion. Thereby, the telescopic former rod portion can be fixed to the former rod.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an enlarged perspective view of the proximal end side of the telescopic fishing rod according to the present invention, and FIG. 2 is a longitudinal sectional view. Symbol 1 in the figure
Is an original rod, and an extensible original rod 2 is inserted into a cylindrical portion 1a of the original rod 1. FIG. 3 is an exploded perspective view of the extensible rod unit 2, and FIG. 3 (a) shows the sliding block 3 and FIG. 3 (b).
Denotes a long member 4. The sliding block 3 includes two sliding portions 3 that abut against the inner peripheral wall of the cylindrical portion 1a (FIG. 2).
The sliding part 3a has an eccentric part 3b formed eccentrically between the sliding parts 3a and 3a. Further, one of the sliding portions 3a is provided with a male screw portion 3c concentric with the sliding portion 3a. On the other hand, a sliding portion 4a is formed on one end side of the long member 4 so as to abut on the inner peripheral wall of the cylindrical portion 1a (FIG. 2). A female thread 4b is formed in the sliding portion 4a, and the male screw 3c of the sliding block 3 is screwed to fix the sliding block 3 to the long member 4.
As shown in FIG. 2, the extensible original rod portion 2 thus configured has a leaf spring 5 having a curved shape interposed between two sliding portions 3a, 3a as shown in FIG. Insert inside. The opening (right end in FIG. 2) of the cylindrical portion 1a is closed by the cap stopper 6 and the cap 7. By making the corner 5a of the leaf spring 5 a curved surface, it is possible to prevent the inner peripheral wall of the cylindrical portion 1a from being damaged.

The operation of the telescopic fishing rod constructed as described above when it expands and contracts will be described. In FIG. 5, the extensible rod part 2 (FIG. 2) is rotated with respect to the cylindrical part 1a, and FIG.
State. In this state, the width B of the leaf spring 5 is expanded, and the pressing force for pressing the inner peripheral wall of the cylindrical portion 1a does not work. In this state, by moving the telescopic former rod portion 2 in FIG. 2 with respect to the cylindrical portion 1a in the left-right direction in the drawing,
Set to the desired length position. Then, the telescopic former rod portion 2 is rotated with respect to the cylindrical portion 1a. Then, by rotating by 180 °, the eccentric portion 3b moves eccentrically as shown in FIG. As a result, the leaf spring 5 is pushed upward in the drawing, and the width b between the positions where the leaf spring 5 contacts the cylindrical portion 1a is narrower than the width B in FIG. 5B. For this reason, the pressing force with which the leaf spring 5 presses the inner peripheral wall of the cylindrical portion 1a becomes strong. Therefore, the telescopic original rod portion 2 is fixed in position with respect to the cylindrical portion 1a of the original rod 1.

As described above, the extensible rod 2 must be rotated by 180 ° with respect to the rod 1 for the locking and unlocking operations, thereby preventing the lock from being easily released during fishing. can do. In addition, at the time of the lock release operation, since the release can be performed by rotating the extensible rod 2 in the left or right direction, an erroneous operation of further rotating in the lock operation direction to release the lock does not occur.

FIG. 6 is a view showing a leaf spring of another embodiment used for the telescopic fishing rod according to the present invention, and FIG. 7 is a sectional view of the fishing rod using the leaf spring. In this embodiment, a protruding portion 11a is formed substantially at the center of the leaf spring 11. By forming the protruding portion 11a in this manner, as shown in FIG. 7, at the time of locking, the plate spring 11 presses the inner peripheral wall of the cylindrical portion 1a in three places. Because it was located in several places, it can be locked more firmly.

FIG. 8 is a view showing a leaf spring of another embodiment used for the telescopic fishing rod according to the present invention. This embodiment is different from the embodiment shown in FIG. 6 in that the projecting portion 11a is formed substantially in the center, whereas the projecting portion 21 of the leaf spring 21 is formed.
a is formed long in the arc direction.

FIG. 9 is a view showing a leaf spring of another embodiment used for the telescopic fishing rod according to the present invention. In the present embodiment, two protruding portions 21a and 231a are formed long at the upper and lower ends of the leaf spring 31 in FIG. 9A.

[0015]

According to the present invention, as described above, only the both ends of the leaf spring press against the inner peripheral wall of the cylindrical portion, so that even if water enters, the water does not stick to the membrane and does not slide sideways. This has the effect of being able to lock securely.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view of a telescopic fishing rod according to the present invention on a proximal end side.

FIG. 2 is a longitudinal sectional view of the telescopic fishing rod according to the present invention on the proximal end side.

FIG. 3 is an exploded perspective view of a telescopic original rod used for the telescopic fishing rod according to the present invention.

FIG. 4 is a perspective view of a leaf spring used in the telescopic fishing rod according to the present invention.

FIG. 5 is a sectional view illustrating the operation of the telescopic fishing rod according to the present invention.

FIG. 6 is a view showing another embodiment of the leaf spring used for the telescopic fishing rod according to the present invention.

FIG. 7 is a sectional view showing a state in which a leaf spring according to another embodiment of the present invention is used.

FIG. 8 is a view showing another embodiment of the leaf spring used for the telescopic fishing rod according to the present invention.

FIG. 9 is a view showing another embodiment of the leaf spring used for the telescopic fishing rod according to the present invention.

FIG. 10 is a view showing a fixing mechanism of a conventional telescopic fishing rod.

FIG. 11 is a view showing a fixing mechanism of a conventional telescopic fishing rod.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Original rod 1a ... Cylindrical part 2 ... Telescopic original rod part 3 ... Sliding block (elastic original rod part) 3b ... Eccentric part 4 ... Long member (telescopic original rod part) 5 ... Leaf spring 11 ... Leaf spring 21 ... Leaf spring 31 ... Leaf spring

Claims (1)

(57) [Scope of request for utility model registration] 1. An extensible fishing rod having a telescopic original rod portion retractably housed in a tube portion on the base end side of a main rod, wherein the telescopic original rod portion is formed with an eccentric portion. A telescopic fishing rod, wherein a leaf spring is housed in a gap formed by the eccentric part and the eccentric position of the eccentric part presses the inner peripheral wall of the tubular part.