JP4905892B2 - Telescopic swing bar - Google Patents

Description

  The present invention comprises a small-diameter housing, a medium-diameter housing, and a large-diameter housing, and can be switched between a state in which the small-diameter housing is contracted to the medium-diameter housing and an extended state in which the medium-diameter housing is pulled out. Further, the present invention relates to a telescopic swing rod that can be switched between a state in which the medium-diameter housing is contracted to the large-diameter housing and an extended state in which the medium-diameter housing is pulled out from the large-diameter housing.

  In order to keep the medium-diameter frame in a contracted state to the large-diameter frame, the outer peripheral surface of the original heel side end as the medium-diameter frame is the rim-side end of the base as the large-diameter frame. Is fitted and held in a holding rubber as a holding body, and the outer peripheral surface of the tip side end portion of the medium-diameter casing is inscribed in the inner peripheral surface of the tip end portion of the large-diameter casing. The structure is taken (refer patent document 1).

Actual No. 2567033 (Gazette second page, left column, line 50 to second page, right column, fourth line, and FIG. 1)

  In the configuration in which the outer peripheral surface of the tip end portion of the medium diameter casing is inscribed in the inner peripheral surface of the tip end section of the large diameter casing, the inscribed portion becomes worn and becomes in the inscribed state. When loosening occurs, there is an inconvenience in fishing operation, but there is no means for correcting the state.

  An object of the present invention is to provide a telescopic head rod that can correct an inscribed state using a small-diameter rod when looseness or the like occurs in an inscribed state between a medium-diameter rod and a large-diameter rod. The point is to provide.

〔Constitution〕
The characteristic configuration of the invention according to claim 1 is characterized in that an extension holding means capable of holding the small-diameter casing in an extended state drawn from the medium-diameter casing is provided on an inner peripheral surface of a tip side end portion of the medium-diameter casing. And the outer peripheral surface of the small-diameter casing that fits to the inner peripheral surface thereof, and the inner peripheral surface of the tip end portion of the medium-diameter casing has a constant shape or a substantially constant shape in the axial direction. The straight fitting portion is formed to be maintained, and the straight fitting portion is formed at the tip side end portion of the medium diameter rod at the tip side end portion of the medium diameter rod. Formed over a fitting position that is in pressure contact with the inner peripheral surface of the tip side end of the body and a position that is further away from the fitting position on the tip side, and is fitted into the straight fitting part of the small diameter casing The outer peripheral surface to be joined is formed on the fitting surface that is press-contacted in the direction of expanding the tip side end portion of the medium-diameter housing, and the effect thereof is as follows. It is as.

[Action]
The inner peripheral surface of the tip side end portion of the medium diameter casing is formed as a straight fitting portion. As a result, the base end portion of the small-diameter housing is fitted into the straight fitting portion formed on the inner peripheral surface of the tip end portion of the medium-diameter housing, thereby expanding the straight fitting portion . Although it is press-contacted in the radial direction, even if the fitting position in the saddle axis direction with respect to the straight fitting part at the base end of the small-diameter housing is different, the small-diameter housing and the medium-diameter housing There is little change.
On the other hand, the base end of the small-diameter housing is positioned away from the fitting position between the tip-side end of the medium-diameter housing and the tip-side end of the large-diameter housing. The fitting state between the tip end portion of the medium diameter casing and the tip end section of the large diameter casing is changed depending on whether the position is positioned or the fitting position.
In other words, if the base end of the small diameter casing is positioned at a position away from the fitting position between the tip end of the medium diameter casing and the tip end of the large diameter casing, Even if the heel side end of the body expands the diameter of the straight fitting part , the diameter expansion force is generated between the heel side end of the medium diameter skeleton and the heel side end of the large diameter skeleton. without department及up fitting portion, it is less affecting the fitting force. On the other hand, when it is positioned at the fitting position between the tip end of the medium diameter casing and the tip end of the large diameter casing, the base end of the small diameter casing is a straight fitting section. The force for expanding the diameter acts in a direction to open and open the tip side end of the medium diameter casing, thereby increasing the fitting force with the tip end of the large diameter casing.
Therefore, by adjusting the position of the small-diameter housing in the perspective direction with respect to the fitting position of the tip-side end of the medium-diameter housing and the tip-side end of the large-diameter housing, It is possible to adjust the fitting force between the front end and the front end of the large-diameter casing.

〔effect〕
Just by configuring the inner peripheral surface of the tip side end of the medium-diameter housing as a straight fitting part , the small-diameter housing can be connected to the tip-side end of the medium-diameter housing and the tip-side end of the large-diameter housing. It can be used as a fitting force adjustment mechanism with the part.
As a result, even when the fitting force is reduced, it is not necessary to perform correction work such as build-up on the inner peripheral surface of the tip side end portion of the medium diameter rod body, and the fishing operation can be continued. is there.
Moreover, since the tool used for the correction work is a small-diameter frame, it is not necessary to equip other correction tools.

Characterizing feature of the invention according to claim 2, composed of in the invention according to claim 1, the cross-sectional shape of the straight fitting portion, circular surface having the same curvature as the chord surface connecting both ends of the arcuate surface portion In addition, the outer peripheral surface that is internally fitted to the straight fitting portion of the small-diameter housing is formed in a circular surface that abuts on the arc surface portion and the chord surface portion, and the function and effect thereof are as follows. It is.

[Function and effect]
In addition to the operational effects described corresponding to the invention according to claim 1, the following operational effects are also achieved.
When the small-diameter housing is pulled out stronger than the medium-diameter housing, the base end of the small-diameter housing is strongly pressed against the tip end of the medium-diameter housing, and the small-diameter housing is This may cause a sticking phenomenon that cannot be stored in the storage. This sticking phenomenon is likely to occur even when moisture is interposed between the base end of the small-diameter casing and the tip end of the medium-diameter casing.
On the other hand, in the invention of the present application, the cross-sectional shape of the straight fitting portion is constituted by an arc surface portion having the same curvature and a chord surface portion connecting both ends of the arc surface portion, and the straight fitting of the small diameter casing. Since the outer peripheral surface that fits inside the joint portion is formed as a circular surface that abuts on the arc surface portion and the chord surface portion, the outer peripheral surface of the small-diameter housing does not come into full contact with the straight fitting portion.
Therefore, since the contact area can be suppressed, the sticking phenomenon can be avoided. Even if moisture is present, it can be positioned in the gap portion between the outer peripheral surface of the small-diameter housing and the straight fitting portion, and the moisture does not promote the sticking phenomenon.

  According to a third aspect of the present invention, there is provided a characteristic configuration according to the first or second aspect, wherein the inner end surface of the small-diameter housing is fitted to the inner peripheral surface of the tip-side end portion of the medium-diameter housing. And the outer peripheral surface of the flange portion is formed to have a larger diameter than the outer peripheral surface on the tip side of the flange portion of the small diameter casing. .

[Function and effect]
In other words, since the flange portion fitted to the inner peripheral surface of the tip side end portion of the medium diameter casing is formed at the base end of the small diameter casing, the flange portion receives a reaction force from the inner peripheral surface. This tends to cause bending.
As a result, the flange portion bends so as to maintain the contact pressure with the straight fitting portion substantially constant.

  The mountain stream A and the like will be described. As shown in FIG. 1, the mountain stream foot A is a main shaft 1 as a large-diameter frame, a former 2 as a medium-diameter frame, an upper-most 3rd as a small-diameter frame, etc. The butt plug 4 is provided at the heel side end of the heel, and can be switched between a contracted state in which the middle heel and the tip heel are accommodated in the heel 1 and an extended state pulled out from the heel 1.

  The shrinkage holding means P that holds the contracted state will be described. As shown in FIG. 1, a holding body 6 is fitted on the inner peripheral surface of the heel side end portion 1 </ b> B of the heel 1, and the heel side end portion 2 </ b> B of the heel 2 with the holding body 6, and The upper end 3B of the base 3 is originally fitted and held. A female screw 6a is formed on the inner peripheral surface of the heel base side of the holding body 6, and a male screw 4a is formed on the heel side of the large-diameter knob portion 4A of the butt plug 4 so that the butt plug 4 can be screwed. The seat rubber 5 is provided on the distal end side of the butt plug 4 to receive the scissors and the like in the stored state.

  The holding body 6 will be described. The holding body 6 is made of rubber such as NBR or synthetic resin such as nylon, and as shown in FIG. 1 and FIG. 6A, the upper end holding seat 6A for internally fitting and holding the heel side end portion 2B, and the heel side end of the base 3 which is smaller in diameter than the original upper holding seat 6A and closer to the heel side than the original upper holding seat 6A. An original upper holding seat 6B for holding the portion 3B, and another holding seat 6C for the other midrib and tip are provided.

  On the other hand, a structure in which the shrinkage holding means P is formed on the tip side will be described. As shown in FIG. 1, a large-diameter bulging portion for fitting is formed on the outer peripheral surface of the tip side end portion 2A of the base 2 and the inner peripheral surface of the tip side end portion 1A of the base rod 1 is fitted. As a mating surface, when the former 2 is stored in the former 1, the large-diameter bulged portion of the distal end 2 </ b> A of the former 2 is placed on the inner peripheral surface of the distal end 1 </ b> A of the former 1. It is configured to fit inside.

  With the configuration as described above, as shown in FIG. 1 (a), the base 2 that is contracted and accommodated in the base rod 1 has the tip side end portion of the base rod 1 at the outer peripheral surface of the tip side end portion 2A. 1A is fitted to the inner circumferential surface, and the outer circumferential surface of the heel side end 2B is fitted into the upper holding seat 6A of the holding body 6 so that the contracted state of the upper 2 is maintained. It is.

  Accordingly, the outer peripheral surface of the heel side end portion 2A of the base 2 and the inner peripheral surface of the heel side end portion 1A of the base 1 and the outer periphery of the base end 2B of the base 2 The contraction holding means P is configured by the fitting state of the surface and the inner peripheral surface of the upper holding seat 6A of the holding body 6.

The extension holding means Q will be described using the former 2 and the former 1 as a representative. As shown in FIG. 1 (b), the large-diameter bulging portion formed on the outer peripheral surface of the heel base end 2 </ b> B of the base 2 described above is used as the inner peripheral surface of the heel end 1 </ b> A of the base 1. To fit. As a result, the upper 2 can be held in an expanded state with respect to the former 1.
Although not shown in figure, by fitting the large diameter bulging part formed in the outer peripheral surface of the heel side end part 3B of the original 3 to the inner peripheral surface of the heel side end part 2A of the original 2 The original 3 can be held in an expanded state.
In this manner, the stretched state can be obtained similarly in the middle and the tip.

Next, the invention described in claim 1 will be described. As shown in FIGS. 2 (a) and 2 (b), description will be made by applying the main rod 1 as the large-diameter frame, the original 2 as the medium-diameter rod, and the original 3 as the small-diameter rod. A straight fitting portion 2a that maintains a constant shape or a substantially constant shape in the heel axis direction is formed on the inner peripheral surface of the heel tip side end portion 2A.
Specifically, the straight fitting portion 2a is formed to have a circular cross section having a constant diameter or a substantially constant diameter.

  The cross-sectional shape along the axial direction of the straight fitting portion 2a will be described, but before that, a normal method for manufacturing a housing will be described. Although the casing is not shown, a prepreg sheet formed by impregnating a reinforced fiber such as carbon fiber in one direction with a thermosetting resin such as epoxy is wound around a mandrel and fired after winding. And it cuts into predetermined length and comprises a housing.

  The mandrel is formed in a tapered rod-like body whose outer diameter gradually increases from the tip end to the tip end. Therefore, the inner peripheral surface of the casing formed by being wound around the mandrel is also formed into a tapered cylindrical body whose inner diameter gradually increases from the tip end toward the base end.

On the other hand, in the straight fitting portion 2a, the degree of inclination with which the inner diameter is increased is set to be smaller than the degree of inclination of the normal casing, or is set to a state without substantially inclination. That is, the inner diameter is substantially constant or substantially constant in the axial direction.
Therefore, the inner peripheral surface of the upper 2 is formed into a straight fitting portion 2a having a constant diameter or a substantially constant diameter over a certain length from the heel side end side to the heel side end side. It is formed, and is formed on the inner peripheral surface having an inclination as a normal casing on the base side of the straight fitting portion 2a.

The structure of the outer peripheral surface of the end portion on the side of the original 3 to be fitted to the inner peripheral surface of the original 2 is set to an inclination as a normal casing. Accordingly, the diameter of the outer peripheral surface of the base end portion of the base 3 is the maximum at the base end or the vicinity thereof.
As a result, the following adjustment operation is possible. That is, the outer peripheral surface of the heel side end 2A of the upper 2 and the inner peripheral surface of the heel side end 1A of the original 1 in a state where the upper 2 is set in a contracted state with respect to the original heel 1. When looseness occurs in the fitted state or when the fitted state is tight, the following adjustment operation is possible.

  First, an adjustment method in the case where looseness occurs in the fitting state between the outer peripheral surface of the heel side end portion 2A of the base 2 and the inner peripheral surface of the heel side end portion 1A of the base 1 will be described. In this case, as shown in FIG. 2 (b), when the heel side end of the original 3 is located near the heel side end of the heel 1, as shown in FIG. The upper 3 is pushed into the main rod 1 and is positioned at a position a where a predetermined length enters from the tip end to the buttock side.

As a result, the large diameter heel end of the original 3 is positioned at the fitting position between the outer peripheral surface of the heel side end 2A of the original 2 and the inner peripheral surface of the heel side end 1A of the base 1. Thus, the heel side end 2A of the base 2 acts so as to spread outward, the outer peripheral surface of the heel side end 2A of the base 2 and the heel side end of the base 1 It works to reinforce the fitting state with the inner peripheral surface of 1A.
Therefore, when looseness occurs in the fitting state between the outer peripheral surface of the tip side end portion 2A of the base 2 and the inner peripheral surface of the tip side end portion 1A of the base 1 in this manner, The looseness can be corrected by adjusting the position of the end of the large diameter base 3.
On the other hand, the inner peripheral surface of the heel side end 2A of the upper 2 is straight when the fitting state between the heel side end 3B of the upper 3 and the inner peripheral surface of the heel side end 2A of the upper 2 is straight. Since it is formed in the fitting portion 2a, as described above, even if the position is changed from the position b near the tip side end of the base rod 1 to the position a that enters the buttocks side by a certain length, the change is made. I'm not sorry.

  An adjustment method in the case where the fitting state between the outer peripheral surface of the heel side end portion 2A of the upper end 2 and the inner peripheral surface of the heel side end portion 1A of the base rod 1 is too tight will be described. In this case, as shown in FIG. 2 (a), when the heel side end of the original 3 is in the position a where it has entered too much into the heel side end portion of the heel 1, it is shown in FIG. 2 (b). In this way, the upper 3 is positioned at the position b where it is pulled out by a certain length toward the tip side end of the base 1.

As a result, the large diameter heel end of the original 3 is pointed beyond the fitting position of the outer peripheral surface of the heel side end 2A of the original 2 and the inner peripheral surface of the heel side end 1A of the base 1 Is located on the side, weakening the action of pushing the heel side end portion 2A of the original 2 outward, the outer peripheral surface of the heel side end portion 2A of the original 2 and the heel side of the heel 1 It works to weaken the fitting state with the inner peripheral surface of the end 1A.
Therefore, when the fitting state between the outer peripheral surface of the heel side end portion 2A of the base 2 and the inner peripheral surface of the heel side end portion 1A of the base rod 1 is too tight, the original 3 The fitting state can be corrected by adjusting the position of the large diameter base end.
On the other hand, the inner peripheral surface of the heel side end 2A of the upper 2 is straight when the fitting state between the heel side end 3B of the upper 3 and the inner peripheral surface of the heel side end 2A of the upper 2 is straight. Since it is formed in the fitting portion 2a, as described above, even if the position is changed from the position b near the tip side end of the base rod 1 to the position a that enters the buttocks side by a certain length, the change is made. Few.

[Another embodiment]
(1) In the above-described embodiment, the description has been given with the base rod 1 as the large-diameter rod body, the base 2 as the medium-diameter rod, and the original 3 as the small-diameter rod. No. 2 can be applied as the medium-diameter frame, and No. 3 can be applied as the large-diameter frame, and all the frames from the tip to the original 3 are responsible for the regulation function as the small-diameter frame. be able to.

(2) In the above-described embodiment, the mountain stream ridge has been described, but the present invention may be applied to a ridge or a ridge.

(3) The cross-sectional shape of the straight fitting portion 2a in the original 2 will be described. In the above embodiment, the straight fitting portion 2a has been described with a circular cross-sectional shape, but a non-circular cross-sectional shape may be employed as shown in FIG. That is, the cross-sectional shape of the straight fitting portion 2a, may be constituted by a chord surface 2c of circular surface 2b having the same curvature as the connecting ends of the arcuate surface portion 2b.
Although one chord surface portion 2c has been presented, it may be composed of a plurality of chord surface portions 2c and a plurality of arc surface portions 2b.

(4) As a structure of the base side end part of the small-diameter casing internally fitted in the straight fitting part 2a described above, a structure formed on a tapered surface whose outer diameter gradually increases toward the base side end. As shown in FIGS. 4 (a) and 4 (b), a collar portion 3A having a diameter larger than that of the tip side may be formed at the base side end of the original three as a small diameter casing.

(B) Longitudinal side view showing a state where the upper part and the upper part are originally housed in the main fence, (b) Longitudinal side view showing the state where the upper part is pulled out from the former part (A) A longitudinal side view showing a state in which the fitting force is increased by positioning the original heel side end at the fitting portion between the boss and the heel while the boss is stored in the heel. (B) Longitudinal side view showing a state in which the heel side end of the heel is positioned closer to the heel side than the fitting part between the boss and the heel Longitudinal front view showing a state where the original flange side end is fitted to the straight fitting part (A) A longitudinal side view showing a state in which a collar portion is formed at the original collar side end, and (b) a perspective view showing a state in which a collar portion is formed at the original collar side end.

1 Genroku (Large Diameter Body)
1A Tip side end 2 Original top (medium diameter housing)
2A Tip side end portion 2a Straight fitting portion 2b Arc surface portion 2c Chord surface portion 3 Originally (small diameter housing)
3A Buttocks Q Elongation holding means

Claims (3)

A small-diameter housing, a medium-diameter housing, and a large-diameter housing are provided, and the small-diameter housing is configured to be switchable between a state in which the small-diameter housing is contracted to the medium-diameter housing and an extended state in which the medium-diameter housing is pulled out. The telescopic swing rod configured to be switchable between a state in which the medium-diameter housing is contracted to the large-diameter housing and an extended state drawn from the large-diameter housing,
An extension holding means capable of holding the small-diameter housing in an extended state drawn from the medium-diameter housing is fitted to the inner peripheral surface of the tip side end portion of the medium-diameter housing and the small-diameter thereof. The outer peripheral surface of the housing is formed in a straight fitting portion that maintains the inner peripheral surface of the tip end portion of the medium diameter housing in a constant shape or a substantially constant shape in the axial direction of the shaft, As for the straight fitting part, the outer peripheral surface of the tip side end part of the medium diameter casing is the tip end part of the large diameter casing on the inner peripheral surface of the tip side end part of the medium diameter casing. An outer peripheral surface that is formed over a fitting position that is in pressure contact with the inner peripheral surface and a position that is away from the fitting position on the heel side, and that is internally fitted to the straight fitting portion of the small-diameter casing, A telescopic swing rod formed on a fitting surface that presses in a direction in which the diameter of the tip side of the medium-diameter frame is expanded. The cross-sectional shape of the straight fitting portion, thereby constituted by a chord surface connecting the circular surface and both ends of the arcuate surface portions having the same curvature, the outer peripheral surface of the inner fitting into the straight fitting portion of the small-diameter rod body The telescopic swing rod according to claim 1, wherein the telescopic swing rod is formed on a circular surface that contacts the arc surface portion and the chord surface portion.   A flange portion is formed on the flange side end of the small-diameter frame so as to be fitted to the inner peripheral surface of the edge-side end portion of the medium-diameter frame, and the outer peripheral surface of the flange portion is defined as the flange of the small-diameter frame. 2. The telescopic swing rod according to claim 1, wherein the telescopic swing rod is formed to have a larger diameter than the outer peripheral surface on the tip side from the portion.

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