JPS5822875Y2 - Bicycle gear lever - Google Patents

Description

[Detailed description of the invention] This invention is a bicycle gear shift lever, more specifically, the lever body is supported to swing freely on a substrate fixed to the bicycle frame, and the movement caused by the swinging of the lever body is transmitted to the transmission. The present invention relates to a bicycle gear shift lever that is adapted to switch to a predetermined gear position.

Normally, this type of gear shift lever performs a gear change operation by swinging the lever body, and the lever body is provided with resistance that can maintain the stopped state in the swing position. A pointer that moves as the lever body swings is integrally supported, and the gear position can be read by the pointer and a display provided on the lever housing that covers the base of the lever body. It has become.

However, when driving at night, the location where the gear shift lever is mounted is not illuminated by headlights or other light, making it extremely difficult to read the gear position.

The present invention has been devised in view of the above points, and its purpose is to provide a bicycle gear shift lever that allows the gear position to be easily read even when riding at night.

According to the present invention, the lever itself is supported so as to be freely swingable on a base plate fixed to the frame of the bicycle.

A lever housing is attached to cover the base of the lever main body, and a dial plate that follows the swinging of the lever main body is slidably supported on the housing, while a light guide is provided outside of the dial plate. , a lamp is provided on one side of the light guide, a through hole is provided in the light guide, and a transparent body is provided in the through hole.

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

1 is a board that is fixed to a bicycle frame F, such as a handlebar stem, and has an abbreviated shape.

A band member 2 is hooked and supported near one end of this board 1, and a tightening bolt 3 is attached between one end of this band member 2 and the other end of the board 1, and the bolt 3 is tightened. By tightening, the frame F is clamped and fixed to the frame F of the substrate 1.

In the middle of the lever base plate 1, a lever main body 4 is supported by a shaft 5 so as to be freely swingable.

This lever main body 4 is made of a vertically long plate, and has a grip 41 at its upper end and a through hole 42 through which the shaft 5 can be inserted at its lower end.
On both side surfaces between the and through hole 42, there are arcuate contact portions 43, 43a' that bulge outward with the central position in the width direction as a fulcrum.
r is provided.

Furthermore, a plurality of locking holes 44 are provided at the lower end of the through hole 42 along the rotation locus of the lower end and corresponding to the amount of movement of the lower end corresponding to the gear position.

Further, a locking body 6 that engages with any one of the locking holes 44 provided in the lever body 4 is provided at the end of the substrate 1 on the side supporting the lever body 4, and the locking body 6 is The elastic body 7 such as a plate spring presses the locking hole 44 side, and the locking hole 4 of the locking body 6 is pressed against the locking hole 44 side.
4, the gear position is determined and, at the same time, the lever main body 4 is stopped at a position corresponding to the gear position.

Reference numeral 8 denotes a lever housing that is attached to the middle of the base plate 1 and covers the base of the lever body 40, and has a box-like shape with an open bottom surface.
A long hole-shaped Q-boat internal groove 81 is provided to guide the Q-boat.

Also, on the outside of the upper wall 8a, there is a long hole 91 corresponding to the guide groove 81.

A housing cover 9 covering the center of the upper wall 8a and a lamp cover 10 for a lamp (to be described later) are each removably attached to create a vacant space a communicating between the two force bars 9, 10 and the upper wall 8a. , b are provided, and the dial plate 11, which is moved by the swinging of the lever main body 4, is slidably supported in the cavity a in the housing cover 9 among these cavities.

The housing cover 9 and the lamp cover 10 may be formed separately from the lever housing 8 or may be formed integrally with the lever housing 8.

Therefore, the dial plate 11 is connected to the locking hole 44 of the locking body 6.
As shown in FIG. 7, letters corresponding to the gear position are displayed in the direction of movement of the lever main body 4.

The base of this dial plate 110 has a rectangular cylindrical shape that can be moved in the length direction within the guide groove 81 of the lever housing 80 with a predetermined frictional resistance, and in the swinging direction of the lever main body 4. The dial 11 is inserted into the contact portion 43.43a of the lever main body 4 so that it can move only within a certain range, and the dial 11 is driven along the guide groove 81 with a predetermined delay. It will be accomplished accordingly.

Also, as shown in FIG. 5, on one side of the facing surface between one side of the base of the dial plate 110 and the inner side of the long side of the guide groove 81, there are provided a plurality of engagements according to the amount of movement corresponding to the gear position. Joint part 1
2, and the other side is provided with a locking portion 13 that engages with one of the locking portions 12, and the locking portion 12 of the locking portion 13 is
By engaging with the dial 11, the dial 11 is stopped at a position corresponding to a certain gear position.

The amount of movement of the dial 11 in the swinging direction of the lever main body 4 is determined by the amount of movement of the lever main body 4 in the shift operation by swinging the lever main body 4, when the lever main body is operated from low speed to high speed, and from high speed to low speed. The shift is made to be approximately the same as the deviation that occurs during the operation of This allows the dial 11 to move.

14 is a light guide provided outside the dial 11;

It consists of a transparent plastic plate such as acrylic.

This light guide 14 is formed to be larger than the character portion of the dial plate 110, and is attached to the inner part of the housing cover 9.

In addition, the lamp 15 is placed in the empty space on one side of the light guide 14.
By turning on the 150 lamps, the light guide 1
The illuminating light beam is transmitted along the length of the light guide 14.

However, the light guide 14 is provided with a through hole 14a opposite to one of the letters displayed on the dial 11, and the lamp 15 is irradiated through the light guide 14 by the edge of the through hole 14a. The light is refracted onto the dial plate 11fJIIl and illuminates one of the characters displayed on the dial plate 11, and a transparent body 16 is provided in the through hole 14a, and the transparent body 16 is used to illuminate the dial plate 11. The reflected light of the irradiated light is transmitted through the screen, making a single character on the irradiated dial stand out.

The through hole 14a has an angle of 1 with respect to the swing angle of the lever main body 4.
/ 2 Provided at a point within the swing, characters corresponding to each gear stage displayed on the 1 dial plate 11 when the lever main body 4 is swung toward the low speed gear and the high speed gear are placed opposite to the through hole 14a. The gear position is positioned so that the gear position can be read through the transparent body 16.

The transparent body 16 is formed integrally with the light guiding body 14 as shown in FIG. It exposes it.

Note that this transparent body 16 is formed integrally with the light guide body 14.

They may also be formed separately.

On the other hand, the lamp 15 is powered by a dynamo (
As shown in FIG. 2, the lamp 15 is supported on the substrate 1 via a holder 17, and the terminal of the lamp 15 is connected to the dynamo via a cord. Healds.

By generating electricity using the dynamo using the rotation of the wheels, the lamp 15 is turned on together with the headlight.

The lamp cover 10 covering the lamp 15 is made of transparent plastic such as acrylic when the lamp 15 is turned on.

A part of the irradiated light passes through the lamp cover 10 and illuminates the grip 41 of the lever body 4.

In the figure, 18 is a wire holding plate, and 19 is a disc spring.

20 is a lock nut.

The present invention is constructed as described above, and as is known, the lever main body 4 and the movable member of the transmission (not shown) are connected by an operation wire, and the movable member is operated by swinging the lever main body 4. is shifted to a predetermined gear position.

Before the speed change operation by swinging the lever main body 4, for example, the letter "1" corresponding to the highest speed stage among the letters displayed on the dial plate 11 as shown in FIG.
If the 40 is aligned with the through hole 14a, then at the time of gear change operation, first, only the lever main body swings to prevent the lever main body 4 from shifting. The characters corresponding to each gear position can be read through the transparent body 16 through the through-hole 14a of the light guide 140 by sliding the gear.

Furthermore, when driving at night, one side of the light guide 14 is illuminated by lighting the lamp 15 together with the headlight, and the irradiated light passes through the light guide 14, and the transmitted irradiated light also enters the through hole 14a. It is refracted by the edge of the hole to illuminate the characters corresponding to a predetermined gear position on the dial plate 11, and the illuminated characters are highlighted by the reflected light that passes through the transparent body 16, so that the predetermined gear position can be set. It can be easily read through the transparent body 16.

Also, at this time, a portion of the irradiated light from the lamp 15 passes through the lamp cover 10 and illuminates the grip 41 of the lever main body 4, making the position of the grip 41 very easy to see.

Therefore, the gear shifting operation by gripping the grip 41 can be performed quickly and reliably.

In the above embodiment, a non-transparent housing cover 9 is provided outside the light guide 14 to prevent the irradiated light passing through the light guide 14 from escaping from the outer surface of the light guide 14. I explained things.

In addition, instead of providing the cover 9, a non-transparent substance such as paint may be applied or pasted on the outer surface of the light guide 14 to prevent the irradiated light from escaping from the outer surface of the light guide 14.

As described above, according to the present invention, when driving at night.

Since the characters corresponding to a predetermined gear position can be illuminated and embossed, the gear position can be easily read even when driving at night.

Moreover, as a means for easily reading the gear position, a light guide is provided outside the dial that follows the swinging of the lever body, and a lamp is provided on one side of the light guide. Since a through hole is provided in the light guide and a transparent body is provided in the through hole, the entire device can be formed compactly even though a lamp is used, and therefore, even if it is attached to a frame, handling of the bicycle will not be hindered. This means that gear changes can be easily performed without being obstructed by the lamps or the like.

In addition, since a dynamo for headlights can be used as the power source for the lamp, it can be provided at a low cost compared to the lamp used.

Moreover, the irradiated light from the lamp passes through the light guide, is refracted toward the dial side at the edge of the through hole provided in the light guide, and illuminates the surface of the dial.

Because it has a structure that reflects the light irradiated on this dial,
The dial is not limited to a structure that can transmit light and can be formed without any restrictions.Moreover, since the dial is irradiated from the front side of the dial and has a structure that reflects the irradiated light, the amount of light on the surface of the dial can be reduced. This can be done by dogs and makes it extremely easy to read the characters displayed on the dial.

Furthermore, because the flat dial and light guide are arranged vertically, and the lamps are placed at the measurement positions of these dials and light guide, the vertical height can be kept very low. Therefore, when mounted on a bicycle frame, the amount of upward protrusion of the frame can be reduced.Moreover, the lamp can be placed in this space by utilizing the empty space created at the measuring position of the dial and light guide. Therefore, the design of the dial part can be made freely, and the lamp can also be used to illuminate the grip of the lever main body, as shown in the embodiment.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view;
Figure 2 is a sectional view taken along the line ■-■ in Figure 1, and Figure 3 is a cross-sectional view taken along the line ■-■ in Figure 1.
Figure 4 is a cross-sectional view along the line IV--IV in Figure 2, Figure 5 is a cross-sectional view along the line ■-■ in Figure 4, Figure 6 is a cross-sectional view along the line ■-■ in Figure 2, A plan view of the dial plate, and FIG. 8 is a sectional view of the dial plate. 1...a, 4...lever body, 8
... Lever lounge, 11 ... Dial plate, 14 ... Light guide, 14a ... Through hole, 15 ... Lamp, 16 ...transparent body.

Claims (2)

[Scope of utility model registration request] (1) The lever body is supported to freely swing on a substrate fixed to the bicycle frame, and a lever housing is attached to cover the base of the lever body, and the lever body is moved by the swinging motion of the lever body on the housing. While supporting the dial so that it can freely slide, a light guide is provided outside the dial, a lamp is provided on one side of the light guide, and a through hole is provided in the light guide. A bicycle gear shift lever characterized by having a transparent body provided in the through hole. (2) The bicycle gear shift lever according to claim 1, wherein the lever housing at the lamp support position is formed of a transparent plate.