JPH0623517Y2 - Bicycle operating device - Google Patents

Description

[Detailed description of the device]

[Industrial applications]

The present invention relates to an operating device for giving relative movement in an axial direction to an outer cable and an inner cable in a double cable and actuating a transmission, a brake or the like connected to the other end of the double cable.

[Prior art and its problems]

An operating device for operating a bicycle transmission generally rotatably supports a lever handle on a lever shaft, and when the lever handle is turned in one direction, an inner cable is wound around an outer periphery of a base boss portion thereof. It is common that it is configured to be taken. Since such a general operating device is attached to the bicycle frame, it is necessary to remove the hand from the handle in order to operate the operating device while traveling. Therefore, in order to operate the transmission etc. quickly and safely without releasing the handle, the handle grip can be rotated with respect to the handlebar, and the winding grip formed on the handle grip can be rotated. You can also see that the inner cable is wound around the section. However, if the type in which the inner cable is wound around the winding portion is adopted in this manner, the inner cable wound around the handle grip may become fatigued while the handle grip is repeatedly rotated, and the inner cable may be broken in a relatively short period of time. Since the inner cable is wound while being bent and deformed, there is a problem that the deformation resistance thereof is large and thus the operation resistance becomes large. On the other hand, for example, as in the throttle grip device for a motorcycle disclosed in Japanese Utility Model Laid-Open No. 56-143191, a spiral groove is formed on the inner surface of a rotatable handle grip, while it is slidable in the axial direction of the handle bar. When the handle grip is rotated by engaging the slider fitted to the spiral groove with the spiral groove and connecting one end of the inner cable to the slider, the feed action of the spiral groove causes the slider or the inner cable to move. There is also an operating device configured to be pulled in the axial direction. In this configuration, since the inner cable is configured to be pulled in the axial direction, the problems of fatigue due to repeated bending deformation and increase of operation resistance are solved, but the spiral groove is formed on the inner circumference of the grip. This process is extremely difficult because it is necessary to form
Since it is necessary to make the slider that fits in the spiral groove slidable in the axial direction of the handlebar in the radial direction of the grip, it is necessary to form a slide groove in the handlebar itself and fit the slider in it. However, this was also very difficult to process. Therefore, the structure disclosed in the above publication is difficult to manufacture, and has not been practically adopted. This invention solves the problems of the above-mentioned conventional examples all at once, there is little concern about fatigue damage to the inner cable, it can be operated while holding the handle grip, and the structure is simple and there is no need to process the handle bar. It is an object of the present invention to provide a new bicycle operating device that can be configured and that can give sufficient relative movement to the inner cable and the outer cable.

[Means for solving the problem]

In order to solve the above problems, the present invention takes the following technical means. That is, the bicycle operation device of the present invention includes a tubular body that is fitted and fixed to an appropriate portion of the handlebar, and a grip that is rotatably inserted around the outer periphery of the tubular body.
A pair of support portions extending outward in the radial direction so as to sandwich the grip is formed on the outer periphery of the tubular body, and a holding hole provided in at least one of the support portions is provided in a direction parallel to the axis of the tubular body. While inserting the slideable receiver, an inclined surface is formed at a portion of the end of the grip that faces the respective receivers in the sliding direction, and one end of the outer cable is fixed to the receiver, and One end of the inner cable extending from the outer cable through the grip is substantially fixed to the other support portion.

[Action and effect]

The inner cable of the double cable consisting of the inner cable and the outer cable, the brake and the return spring of the transmission (operation target) connected to this,
It is pulled to the operation target side. Therefore, at the end portion of the double cable on the operating device side, an elastic force acts in a direction in which the distance between the end portion of the outer cable and the end portion of the inner cable drawn from the outer cable is reduced. Therefore, an elastic force that tends to reduce the distance acts between one receiving body to which one end of the outer cable is fixed and one end of the inner cable that is substantially fixed to the other supporting portion. This means that the axially inner end of the receiver is brought into contact with the slope of the end of the grip. When the grip is rotated in one direction, the cam body of the inclined surface of the grip moves the receiving body in the axial direction. Since one end of the outer cable is fixed to the receiving body, relative movement corresponding to the axial movement amount of the receiving body is given to the outer cable and the inner cable. Therefore, according to the operating device of the present invention, by rotating the handle grip, relative movement can be given to the inner cable and the outer cable in the double cable, and thereby the operation target can be reliably operated. Also, since the receiving body slides in the axial direction of the handlebar, the inner cable can be pulled in the axial direction relative to the outer cable, and the inner cable becomes fatigued due to repeated bending deformation and deformation resistance. There is also no problem that the operating resistance of the grip increases. In addition, in the present invention, the cam surface is slanted on the end surface of the handle grip and the receiving member slidably supported by the supporting portion so that the outer cable and the inner cable are axially moved relative to each other. Since the slope is relatively easy to form, the receiver is axially slid to a position facing the slope on the support formed on the tubular main body that is fitted and fixed to the appropriate portion of the handlebar. The handlebar itself does not need to be processed because it can be movably inserted. As a result, the operating device of the present invention can be easily implemented without requiring difficult parts machining.

[Explanation of Examples]

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. FIG. 1 is a sectional view of an embodiment of the present invention. This example shows an example in which the present invention is applied as an operating device for operating a bicycle transmission. The tubular support 2 is fitted and fixed near the end of the handlebar 1. A pair of flange-shaped support portions 3 and 4 are provided on the outer circumferences of both ends of the cylindrical support body 2 at predetermined intervals. In this example, the support portion 3 on the shaft inner side of the handlebar 1 is integrally provided with the cylindrical support body 2, and the support portion 4 on the shaft outer side of the handlebar 2 is formed in a substantially ring shape. It is provided by fitting and fixing an object on the outer circumference of one end of the tubular support portion 2. These support portions 3 and 4 include large-diameter portions 5a and 6a on the outside in the axial direction and small-diameter portions 5b and 5b on the inside in the axial direction.
Stepped holding holes 5 and 6 continuous with 6b are formed so as to penetrate on the same axis parallel to the axis of the handlebar 1, and receiving bodies 7 and 8 are formed in the respective holding holes 5 and 6. It is inserted and held so as to be slidable in the axial direction. The receiving bodies 7 and 8 include spherical head portions 7a and 8a and tubular body portions 7b and 8b.
And has a substantially bullet-shaped appearance, and has flanges 7c and 8c on the outer periphery of the rear portion. The outer diameters of the flanges 7c and 8c correspond to the inner diameters of the large diameter portions 5a and 6a, and the cylindrical body portions 7b and 8c
The outer diameter of b corresponds to the inner diameter of the small-diameter portions 5b and 6b, and the flanges 7c and 8c form the large-diameter portions 5a and 6a and the small-diameter portion 5b.
By making contact with a step portion that borders 6b, the axially inward moving ends of the receiving bodies 7 and 8 are defined. Further, the flange side end surface of each of the receiving bodies 7 and 8 has an axially large diameter hole 9 capable of accommodating the outer cable w1.
The cable holding holes 9 and 10 are formed by a and 10a, and axial small diameter holes 9b and 10b penetrating from the bottom to the tips of the spherical heads 7a and 8a. The small axial holes 9b and 10b are of a size that allows the inner cable w2 to pass therethrough. A substantially tubular grip 11 is rotatably fitted on the outer periphery of the tubular support 2 between the pair of support portions 3 and 4. In this example, the grip 11 is configured by combining a pair of ring bodies 11a and 11b at both ends and a cylindrical body 11c at an intermediate portion thereof for convenience of assembly. Further, the grip 11 is restricted in its rotation range to approximately 60 ° by the synergistic action of the engagement recess 12 formed on the inner periphery of the grip 11 and the engagement protrusion 13 formed on the outer periphery of the tubular support 2. Has been done. Then, on the axially outer surfaces of the ring bodies 11a and 11b facing the receiving bodies 7 and 8, respectively, slopes 14 extending in an arc shape within a range of approximately 60 ° and having opposite inclination directions are provided. , 15 are formed. In addition, slits 16 and 17 through which the inner cable w2 is inserted are formed through the slopes 14 and 15 in an arc shape. Further, the slits 16 and 17 are formed in the cylindrical body 11c.
The hollow portion 18 is formed so that the inner cable w2 therebetween can pass through the inside of the grip. On the other hand, in this example, a click mechanism 19 for holding the grip at a predetermined rotation angle is incorporated between the support portion 3 and the ring body 11a. That is, as shown in FIG. 1, the steel ball 20 urged toward the ring body 11a is embedded in the inner surface of the support portion 3, and the steel ball 20 is engaged on the outer surface in the axial direction of the ring body 11a. A plurality of engaging recesses 21 ... (See FIG. 4) that can be fitted are provided so as to be aligned on an arc centered on the axis of the handlebar 1. By this click mechanism, each time the handle grip 11 is rotated by a predetermined angle, the steel ball 20 is elastically engaged with one of the engaging recesses 21 ..., and the return rotation of the handle grip 11 is blocked. This blocking force is set to such an extent that it can oppose the return rotational force received by the handle grip 11 due to the return spring of the transmission that is the operation target. The number of the engaging concave portions 21 is set according to the number of shift stages of the transmission. The outer cable w of the double cable connected to the transmission
One end of 1 is fixed to, for example, the receiving body 7 on the shaft inner side of the handlebar 1 by inserting it into the large diameter hole 9a of the cable holding hole 9. Then, the inner cable w2 extending from one end of the outer cable w1.
Is the small diameter hole 9a of the holding hole 9 and the slit 1 of the slope 14.
6, it passes through the hollow portion 18 and the slit 17 of the inclined surface 15 and is fixed to the receiving body 8 on the axially outer side of the handlebar. Actually, the nipple 22 is provided at the tip of the inner cable w2.
Is provided, the cable holding hole 10 of the receiving body 8 for receiving the free end (end on the transmission side) of the inner cable w2.
By inserting the nipple 22 from the left side in FIG. 1, the nipple 22 is locked to the bottom of the large diameter hole 10a in the cable holding hole 10 of the body 8. In the above configuration, as described above, the pulling force acts on the inner cable w2 on the transmission side by the return spring of the transmission.
An elastic force that acts to reduce the distance between them acts on 8. Therefore, each spherical head 7 of both receivers 7, 8
The a and 8a are in contact with the slopes 14 and 15 formed on the ring bodies 11a and 11b. FIG. 1 shows a state in which both receiving bodies 7 and 8 are closest to each other. When the handle grip 11 is rotated from this state, both slopes 14 and
By the cam action of 15, both receivers 7 and 8 are forcibly moved in opposite directions, and the distance between them is expanded. That is,
In FIG. 1, the receiving body 7 on the right side is moved to the right side,
The receiving body 8 on the left side is moved to the left side. In this way, the relative movement corresponding to the sum of the movement amounts of the right side receiving body 7 and the left side receiving body 8 is applied between the end portion of the outer cable w1 and the end portion of the inner cable w2. This relative movement is transmitted as it is as relative movement between the ends of the outer cable and the inner cable on the transmission side, and the transmission is operated. Then, when the grip 11 is rotated in the opposite direction to the above, the distance between the two receiving bodies 7 and 8 is shortened. As described above, according to the present invention, the two receiving bodies 7 and 8 to which the end portions of the outer cable w1 and the inner cable w2 are fixed are moved in opposite directions, thereby bringing them closer and separated from each other. And give relative movement to the inner cable. Therefore, even if the turning range of the grip 11 is regulated to about 60 ° as in the embodiment, it is possible to give a sufficient relative movement to both cables and reliably operate the transmission. . The bicycle operating device of the present invention can be operated with any parts that are operated using a double cable including an outer cable and an inner cable. The above example has been described on the premise that the front transmission or the rear transmission, which shifts the chain by changing the chain to one sprocket selected by the multi-stage sprocket device, is operated, but the internal transmission and the brake are also operated. Good. In this case, the method of fixing the outer cable and the inner cable to the operation device is exactly the same as the above-mentioned example. Then, the click mechanism 19 required as a structure for operating the transmission may be omitted. Then, the bicycle operating device of the present invention can be used in the following ways. That is, the applicant of the present application has previously proposed a bicycle brake operating device that can perform a brake operation with both the original brake lever and a grip provided at an appropriate portion of the handlebar (Japanese Patent Application No. 61- 194195, Japanese Patent Application No. 6
No. 1-268860), the present invention can be applied to the grip portion of the bicycle brake operating device. That is, as shown in FIGS. 6 and 7, the outer cable w1 of the double cables connecting the brake lever 23 and the brake body 24 is connected to the brake lever side wa.
No. 1 and the brake body side wb1, and the opposing ends of the divided outer cables wa1 and wb1 are accommodated and held in the receivers 7 and 8 of the operating device of the present invention as shown in FIG. And both outer cables w
Connect inner cable w2 between a1 and wb1 to both slopes 1
The slits 16 and 17 of 4, 15 and the cavity 18 of the grip 11 are passed through. In a state where the grip 11 is not rotated, relative movement between the outer cable w1 and the inner cable w2 does not occur in the operating device, and the brake lever 23 is operated to operate the outer cable in the same manner as an ordinary brake. The brake main body can be operated by imparting relative movement to the cable w1 and the inner cable w2. Also, by rotating the grip, the outer cable w
Since relative movement can be applied to 1 and the inner cable w2,
The brake body can be activated. In this case, since no relative movement occurs between the outer cable wa1 and the inner cable w2 on the brake lever side,
The same operation as that in which the inner cable w2 is fixed to the receiving body 8 on the left side is substantially performed. Then, the important point in this case is that the outer cable w1 and the inner cable w2 extend parallel to the axial direction of the grip, so that the cable extending from the brake lever 23 should be arranged along the handlebar. Is possible. In this way, the appearance around the steering wheel is improved, a high-class feeling is produced, and the air resistance during traveling is also reduced. Of course, the scope of the present invention is not limited to the above-mentioned embodiments. In the above-described embodiment, the receiving bodies 7 and 8 are slidably fitted and inserted into both the supporting portions at both ends of the tubular body, and the slopes 14 and 14 are provided at both ends of the handle grip 11.
Although 15 is formed, even if the cam mechanism including the inclined surface and the receiving body is provided only on one end portion in the axial direction of the handle grip 11, the same operational effect as that of the above-described embodiment can be expected. That is,
In FIG. 1, the slit 17 is left in the ring body 11b, the slope 15 is omitted, and a small hole through which only the inner cable w2 can be inserted is formed in the support portion 4 so that the nipple 22 of the inner cable is directly attached to the support portion 4. It is fastened. Then, when the grip 11 is rotated, the first
Only the receiving body 7 on the right side of the figure or the end portion of the outer cable w1 fixed to the receiving body 7 is moved in the axial direction of the handlebar, but this also causes the axial direction to be increased between the outer cable w1 and the inner cable w2. Relative movement is given, and the operation target can be operated. On the contrary, the cam mechanism formed by the slope 15 and the receiving body 8 is
Of course, it may be formed only on the left side of the drawing so that when the handle grip 11 is rotated, only the end portion of the inner cable w2 can be moved in the axial direction.

[Brief description of drawings]

1 is a sectional view of an embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 is a sectional view taken along line III-III of FIG. 1, and FIG. 4 is a ring body. Front view of FIG. 5, FIG. 5 is V- of FIG.
FIG. 6 is a sectional view taken along line V, FIG. 6 is an overall external view of another embodiment of the present invention, and FIG. 7 is an enlarged sectional view taken along line VII-VII of FIG. 1 ... Handlebar, 2 ... Cylindrical support, 3, 4 ... Support part, 5, 6 ... Holding hole, 7, 8 ... Receiving body, 11 ...
Grip, 14, 15 ... Slope, w1 ... Outer cable, w2 ... Inner cable.

Claims (1)

[Scope of utility model registration request] 1. A tubular main body, which is fitted and fixed to an appropriate portion of a handlebar, and a grip rotatably inserted into the outer periphery of the tubular main body. A pair of support portions extending outward in the radial direction is formed so as to sandwich the grip, and a receiving body that can slide in a direction parallel to the axis of the tubular body is inserted into a holding hole provided in at least one of the support portions. On the other hand, an inclined surface is formed at a portion of the end of the grip that faces each of the receiving bodies and its sliding direction, and one end of an outer cable is fixed to the receiving body, and the grip penetrates from the outer cable. An operating device for a bicycle, characterized in that one end of an inner cable extending substantially is fixed to another supporting portion.