JPS60777Y2 - Spinning reel handle attachment device - Google Patents

Description

[Detailed description of the invention] The means for connecting the handle shaft to the drive shaft having the drive gear of the spinning reel is to fit the polygonal shaft of the handle shaft into a polygonal shaft hole drilled in the drive shaft. Currently, a male threaded rod is screwed into a female threaded hole formed at the tip, but it is extremely difficult to securely fit a square shaft into a polygonal shaft hole from a precision standpoint, resulting in play in the direction of rotation. In addition, since the tightening male screw rod is fixed only by the frictional force on the drive shaft contacting surface of the collar, there is a problem in that the tightening male screw rod loosens during long-term use, making it impossible to smoothly rotate the handle.

This invention aims to improve these deficiencies.
A polygonal shaft hole is bored in a drive shaft having a drive gear rotatably supported by a housing, a polygonal shaft having a handle is fitted into the polygonal shaft hole, and a polygonal shaft is formed at the tip of the polygonal shaft. The gist is that a male screw rod having a tapered base is screwed into a female screw hole having a split groove.

An embodiment of the present invention will be described with reference to the drawings. A drive shaft 2 rotatably supported by a spinning reel housing 1 is integrally equipped with a drive gear 6 that meshes with a pinion 5 formed on a rotating shaft cylinder 4 having a rotor 3. A polygonal shaft hole 7 is bored through the inside thereof, and a polygonal shaft 9 having a handle 8 is fitted into the polygonal shaft hole 7.

A female threaded hole 11 with grooves 10 formed on both sides is bored at the tip of the polygonal shaft 9, and a male threaded rod 13 having a tapered base 12 is screwed into the female threaded hole 11. The tip of the female screw 11 is expanded to fit the tip of the polygonal shaft 9 tightly into the polygonal shaft hole 7.

As described above, when a polygonal shaft having a handle is fitted into a polygonal shaft hole of a drive shaft having a drive gear, the present invention particularly provides a female threaded hole having a split groove at the tip of the polygonal shaft. A male screw rod with a tapered base is fitted into the hole, and the tip of the polygonal shaft is widened so that it fits tightly into the polygonal shaft hole of the drive shaft, so the polygonal shaft with the handle can be driven. It has excellent features and practicality in that it reliably prevents play in the rotational direction with respect to the shaft and at the same time prevents loosening of the male threaded rod, allowing smooth rotational operation of the handle.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway front view of the present invention, Figure 2 is a longitudinal sectional front view of the main part, Figure 3 is a slope view of the same, Figures 4 and 5 are Figures 2A-AXB-B, respectively. It is a sectional view of a line. 1... Housing, 2... Drive shaft, 6...
... Drive gear, 7... Polygonal shaft hole, 8...
...Handle, 9...Polygonal shaft, 10...
...Split groove, 11...Female screw hole, 12...
...Taper 13...Male screw rod.

Claims (1)

[Scope of utility model registration request] A polygonal shaft hole is bored in a drive shaft having a drive gear rotatably supported by a housing, and a polygonal shaft having a handle is fitted into the polygonal shaft hole, and a splitter formed at the tip of the polygonal shaft is inserted into the polygonal shaft hole. A spinning reel handle attachment device in which a male screw rod having a tapered base is screwed into a female screw hole having a groove.