JPS6220399Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bicycle gearshift operating lever, more specifically, a boss portion of a lever body is rotatably supported on the lever shaft of a fixed member having a lever shaft, and movement due to rotation of the lever body is controlled. The present invention relates to a bicycle gear shift operating device that transmits information to an actuating member of a transmission via an operating wire to switch to a predetermined shift stage.

Generally, this type of operating lever has a boss portion of the lever body provided with a restriction portion that restricts the rotation range of the lever body, and a restriction piece protruding from the fixed member that engages with the restriction portion, By tensioning the operating wire while the regulating portion is engaged with the regulating piece, the operating start position of the lever body is determined.

However, since the operation start position of the lever body is determined at the design stage, once the operation lever is installed on the bicycle, it cannot be changed even if the rider wants to change it to a position according to his/her preference. It was empty.

The present invention has been devised in view of the above-mentioned conventional problems, and it is possible to change the operation start position of the lever body to a position according to the driver's preference, and it has a lever shaft. In the speed change operation lever in which a boss portion of a lever body is rotatably supported on the lever shaft of a fixed member, a stopper having a regulating piece for regulating the rotation range of the lever body is provided, and the stopper is attached to the fixed member. It is characterized by being supported so that the angle can be changed.

Embodiments of the present invention will be described below based on the drawings.

In the figure, reference numeral 1 denotes a fixing member fixed to the top tube T of the bicycle frame, which has a box shape with an open bottom surface facing the outer surface of the top tube T, and has a through hole 11 penetrating in the vertical direction in the top wall. There is also a non-circular shaft hole 1 on both left and right walls.
2 and 12 are provided, and in these shaft holes 12 and 12, a lever shaft 2 which projects outward from the side wall and has a threaded hole in the center is supported non-rotatably.

The lever shaft 2 has a flat surface 21 on its outer circumferential surface.
The lever shaft 2 is non-circular and supports the lever bodies 3, 3 at both ends for rotation, and has a radial through hole 22 at the center of the length, and the fixing member 1 is fixed to the top tube T via a direct mounting base 5 welded to the top tube T by inserting a fastening bolt 4 through the through holes 11, 12 as shown in Fig. 1. The fixing member 1 may be fixed to the top tube T via a fastening band, or may be directly attached to the top tube. The lever shaft 2 may be formed separately from the fixing member 1, or may be formed integrally with it.

Further, the lever bodies 3, 3 have boss portions 32, 3 having shaft holes 31, 31 for receiving the lever shaft 2.
2, and operating portions 33, 3 extending outward from the boss portion.
3, and is supported rotatably by fitting the shaft holes 31, 31 to the lever shaft 2, and a through hole is formed on the outside of the lever body 3, 3 through a washer 6, 6. Disc-shaped upper plate 7, 7
A predetermined rotational resistance is imparted to the lever bodies 3, 3 by screwing the tightening bolts 8, 8, which are inserted into the upper plates 7, 7 through washers, into the lever shaft 2. That's what I do.

However, in the embodiment shown in FIGS. 1 to 3, the boss portions 32, 32 of the lever bodies 3, 3, which are rotatably supported as described above, have openings on the surface facing the fixing member 1, and the shaft Recessed holes 34, 34 having a larger diameter than the holes 31, 31 are provided on the same axis as the shaft holes 31, 31, and on the inner surface of the recessed holes 34, 34,
Provided with protrusions 35, 35 that regulate the rotation range of the lever bodies 3, 3 and constitute a regulating part, and regulating pieces 91, 91 that engage with the protrusions 35, 35;
Plate-shaped stoppers 9, 9 having non-circular holes 92, 92 for receiving the lever shaft 2 are formed, and by fitting the non-circular holes 92, 92 to the lever shaft 2, the stoppers 9, 9 are connected to the lever. It is supported on the shaft 2 so that its angle can be changed and is disposed in the recessed holes 34, 34, and the operation start position of the lever bodies 3, 3 is determined by the engagement of the projections 35, 35 with the regulating pieces 91, 91. By inverting and supporting the stoppers 9, 9, the angular positions of the regulating pieces 91, 91 are changed.

The stoppers 9, 9 have the regulating pieces 91, 91 provided on the outer peripheral surface of a circular plate, and the non-circular holes 92, 92 provided in the center, but the shape thereof is not particularly limited.

In addition, the boss portions 32, 32 of the lever bodies 3, 3
There are winding grooves 36, 3 for winding the operating wires W, W.
6, and locking holes 37, 37 for receiving and locking locking bodies S, S fixed to one end of the operating wire.

Further, numeral 10 in the figure is a spacer.

The present invention is constructed as described above, and the locking bodies S, S of the operating wires W, W are locked in the locking holes 37, 37 of the lever bodies 3, 3, and the operating wires W,
Guide the tip side of W from the winding grooves 36, 36 along the bicycle frame toward the transmission, and connect the protrusions 35, 35 of the lever body to the regulating pieces 91, 91 of the stopper.
By attaching the tips of the operating wires W, W to the operating member of the transmission while being engaged with 91,
The operation start position of the lever bodies 3, 3 is determined, and the actuation member is activated by operating the lever bodies 3, 3 in the pulling direction of the operation wires W, W (direction of arrow X in FIG. 3). By moving the lever bodies 3, 3 in the direction of loosening the operating wires W, W (in the direction of the arrow Y in FIG. 3), the actuating member is moved back by the force of the return spring in the transmission. The gear is shifted to a predetermined gear position.

When changing the operation starting position of the lever bodies 3, 3, loosen the tightening bolts 8, 8, remove the upper plates 7, 7 and the lever bodies 3, 3, and then move the stoppers 9, 9, for example, as shown in FIG. are supported on the lever shaft 2 by being reversed in the left-right direction with respect to a vertical line passing through the centers of the lever shafts 2, 2, and the regulating pieces 91,
After changing the angular position of the lever body 91 as shown in FIG. By engaging the lever bodies 3, the operation start position of the lever bodies 3, 3 is changed as shown in FIG.

Further, the stoppers 9, 9 may be reversed in the vertical direction with respect to a horizontal line passing through the centers of the lever shafts 2, 2 in FIG.

In addition, in the above explanation, two flat surfaces 21, 21 are provided on the outer peripheral surface of the lever shaft 2, and the lever shaft 2 is
By forming the lever shaft 2 into a non-circular shape, the stoppers 9, 9 are supported on the lever shaft 2 so as to be able to change the angle. However, it is also possible to form the lever shaft 2 into a polygonal shape as shown in FIG. 5, or as shown in FIG. As shown in the figure, a large number of protrusions may be provided on the outer peripheral surface of the lever shaft 2, and the stoppers 9, 9 may be supported on the lever shaft 2 so that the angle thereof can be changed.

In addition to being supported by the lever shaft 2, the stoppers 9, 9 may be supported by the fixing member 1. In this case, for example, as shown in FIG. 7, a plurality of recesses 13 are provided in one of the fixing member 1 and the stoppers 9, and the other is selectively engaged with at least one of the recesses 13. A positioning piece 93 is provided.

Further, in the above explanation, the lever bodies 3, 3 are provided with the protrusions 35, 35, but the protrusions 35, 35 are eliminated, and the outer surfaces of the boss parts 32, 32 are used.
The outer surface of the boss portion may be used as a regulating portion, and a stopper having a regulating piece that engages with this regulating portion may be provided. Also, in the above explanation, two lever bodies 3,
Although 3 pieces were used, one piece may also be used.

As described above, the present invention provides a stopper with a regulating piece that regulates the rotation range of the lever body, and supports this stopper with respect to the fixed member so that the angle can be changed, so that the operation start position of the lever body can be adjusted.
The position can be changed according to the driver's preference.

Therefore, the shift operability for all drivers can be improved.

[Brief explanation of the drawing]

FIG. 1 is a vertical side view showing an embodiment of the present invention;
Fig. 2 is a cross-sectional plan view of the same, Fig. 3 is a cross-sectional view taken along the line of Fig. 2, Fig. 4 is an explanatory diagram when the angle of the stopper is changed, and Figs. 5 to 7 are other embodiments of the main parts. FIG. DESCRIPTION OF SYMBOLS 1...Fixing member, 2...Lever shaft, 3...Lever body, 32...Boss part, 35...Protrusion, 9...
Stopper, 91...Regulation piece.

Claims (1)

[Scope of utility model registration request] A shift operation lever is provided with a lever shaft protruding from a fixed member, a boss portion of a lever body is rotatably supported on the lever shaft, and a stopper is provided with a regulating piece for regulating the rotation range of the lever body, A bicycle gear shift operating lever characterized in that the stopper is supported with respect to the fixed member so as to be able to change an angle thereof.