JPH05286476A - Brake operating device for bicycle - Google Patents

Abstract

PURPOSE:To provide a brake operating device for bicycle which carries out the turning operation of a winding body for speed change wire by using a brake lever as speed change lever so that the light speed change operation is carried out without generating the operation resistance due to the wire for brake. CONSTITUTION:When a brake lever 4 is swing-operated around the first axis center X, the pressing part 4a of the brake lever 4 pressing-acts on the receiving part 3c of a swing member 3, which swings around the fourth axis center Q, and operates a wire for brake which is connected with the connection part 3a of the swing member 3. When the brake lever 4 is swing-operated around the second axis center Y different from the first axis center X, a feeding member 24 turns around the second axis center X, together with the brake lever 4, and turning operates a winding body 6 through a feeding hook 29, and the winding body 6 winding-operates a wire 15 for speed change. In this case, the pressing part 4a turns around the second axis center Y and slips for the receiving part 3c, and the swing force of the brake lever 4 does not acts on the swing member 3, and the wire for brake does not move.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing member for fixing a bicycle so that a brake lever swings around a first axis and a second axis different from the first axis. In addition, the winding body of the speed change wire is attached so that it can be rotated by the swinging operation of the brake lever around the second axis, and the brake lever can also be used as the speed change lever for speed change operation. The present invention relates to a configured brake operation device for a bicycle.

[0002]

2. Description of the Related Art As a brake operating device of this type,
For example, there is one disclosed in Japanese Patent Laid-Open No. 2-225191. That is, the brake lever is swingably connected to the winding body that the fixing member rotatably supports, and the brake lever is swingably operated around the connecting shaft center with respect to the winding body, whereby only the brake lever is fixed. It is possible to operate the brake wire by swinging with respect to the brake lever, and swinging the brake lever around the rotation axis of the winding member with respect to the fixing member causes the winding member to move with respect to the fixing member together with the brake lever. It was possible to rotate and operate the shifting wire.

[0003]

In the case of the conventional apparatus, since the brake wire is directly connected to the brake lever during the gear shifting operation, the brake wire moves together with the brake lever,
The movement of the wire sometimes becomes an operation resistance, which makes the gear shifting operation heavy. SUMMARY OF THE INVENTION An object of the present invention is to provide an operating device that allows a gear shift operation to be performed by using a brake lever also as a gear shift lever, and that the gear shift operation is relatively light.

[0004]

In a bicycle brake operating device according to the present invention, in order to achieve an object, a brake lever is provided around a first axis and a first fixing member for fixing a fixing member fixed to a bicycle. A swinging member is swingably provided around a second axis different from the one axis, and a swinging member is swingably attached to the fixed member, and a connecting portion for a brake wire is provided on the swinging member. By swinging the brake lever around the first axis, the brake wire is operated via the swing member, and swinging around the second axis moves the shift wire attached to the fixed member. It is characterized in that the winding body is rotated.

[0005]

When the brake lever swings about the first axis, the pressing portion of the brake lever acts on the swing member, or the brake lever swings on the swing member around the second axis. When the brake lever is swung around the first axis, the swing member swings so that the brake wire can be operated, and the brake lever is swung around the second axis. By doing so, it is possible to rotate the winding body while preventing the swinging member from swinging, and the brake wire is not directly connected to the brake lever, and no operating force acts on the brake wire during a gear shift operation. However, it is possible to operate the brake wire by the brake lever and the shift wire.

[0006]

[Effect of the Invention] While the brake lever is also used as a speed change lever, it can be obtained compactly and simply,
The brake wire did not become a resistance, and it was possible to shift lightly.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a brake lever 4 is swung around a first axis X and a second axis Y on the tip side of a fixing member 2 having a mounting band 1 on the base side. The gear shift operation device main body A including the winding body 6 is provided inside the portion of the fixed member 2 that is closer to the base end side than the brake lever 4, and the gear shift lever 5 is attached to the brake lever 4 around the third axis P. Attaching so that it swings, the fixing member 2
Is fixed to the bicycle drop-type handlebar 7 by the mounting band 1, and the fixing member portion 2a of the fixing member 2 is formed into a tubular shape or a shape close to it so as to accommodate the speed change operation device main body A and the like. By operating the levers 4 and 5 using the grip as a grip, the brake device (not shown) and the speed change device (not shown) can be operated, so that a brake operation with a speed change operation device for a bicycle is performed. The device is configured.

In order to enable the brake operation by the brake lever 4, the first member is provided on one end side of the feed member 24 of the transmission operating device main body A supported by the fixing member 2 via the support shaft 14.
Brake lever 4 via pivot pin 25 with axis X
Is swingably supported to allow a swinging operation of the brake lever 4 with respect to the fixed member 2 around the first axis X, and the brake swinging operation causes the brake lever 4 to move at its base end. The brake wire 10 is configured to be operated via the swinging member 3 disposed laterally on the side. That is, the swinging member 3 is connected to the fixed member 2 so as to be supported via the support pin 26 and the support member 27 as shown in FIG.
By the pivotal action of the above, it is configured to swing around the fourth axis Q with respect to the fixed member 2. The brake wire 10 introduced from the brake device (not shown) into the fixed member 2 through the inside of the handlebar 7 is connected to the free end side of the swinging member 3 by using the wire end fitting 9 as a connecting tool. It is configured to be connected to the provided connecting portion 3a. As shown in FIGS. 1 and 3, a passive pin is attached to the free end side of the swing member 3 to form a passive portion 3c, and the passive portion 3c is formed on the base end side of the brake lever 4 separately from the brake lever 4. Further, a member that has been subjected to quenching treatment is additionally provided so as to have excellent wear resistance, and the pressing portion 4a is formed. The pressing portion 4a and the passive portion 3c are arranged around the first axis X of the brake lever 4 because of the positional relationship between the both 4a and 3c and the axes X and Q and the tension of the brake wire 10. 2 and the swinging member 3 around the fourth axis Q, the brake lever 4 is always in contact with the handle bar around the first axis X, as shown in FIG. When the swinging operation is performed toward 7, the pushing portion 4a pushes the passive portion 3c, the lever operating force is transmitted to the swinging member 3, and the swinging member 3 rotates around the fourth axis Q and the tip of the fixed member 2 is moved. The brake wire 10 is configured to be swung to the side to operate the brake wire 10 to the pull side.
When the swing operation of the brake lever 4 toward the handlebar 7 side is released, the tension of the brake wire 10, the contact between the passive portion 3c and the pressing portion 4a, and the return spring (not shown) that acts on the brake lever 4 Therefore, the swing member 3 automatically returns to the base end side of the fixed member 2 to swing and operates the brake wire 10 to the slack side, and the brake lever 4 automatically returns to the brake cut position. It is configured as follows.

When the feed member 24 rotates with respect to the support shaft 14, and the rotation axis is the first axis X.
And the second axis which is a rotation axis of the feed member 24 with respect to the fixed member 2 by setting the brake lever 4 to the fixed member 2 by being an axis different from the first axis X and not parallel to the first axis X.
The swinging operation is performed around the axis Y, and the swinging operation of the brake lever allows the winding operation of the winding body 6 and the shift operation. That is, when the brake lever 4 is rocked from the original position N in the gear shift direction U as shown in FIG. 4, the feed member 24 rotates together with the brake lever 4 around the second axis Y as shown in FIG. When the feed member 24 rotates in this manner, the feed pawl 29 pivotally supported at the end of the feed member 24 on the side opposite to the side where the brake lever is attached via the pawl pin 28 has a pawl spring as shown in FIG. While being engaged with one of a large number of ratchet teeth 6a of the winding body 6 due to the urging action of 30, the rotating force of the feeding member 24 is rotated around the second axis Y. 6, the winding body 6 is rotated in the rotation direction of the feeding member 24 to be introduced into the fixed member 2 from the transmission device to wind up the connected transmission wire 15. When the swing stroke of the brake lever 4 reaches a predetermined stroke and the winding length of the speed change wire 15 reaches a predetermined length, the positioning ball 31a arranged at the base end of the support shaft 14 is wound as shown in FIG. The positioning mechanism 31 configured to engage with and disengage from the body 6 performs a positioning action, and can prevent the winding body 6 from being rotated so as not to rewind and rotate regardless of the tension of the speed change wire 15, and The return spring (not shown) is configured to return the feed member 24 to the feed standby position and the brake lever 4 to the original position N, respectively. At this time, the pressing portion 4a and the passive portion 3c are in contact with each other on the extension of the second axis Y, and the pressing portion 4a rotates around the second axis Y while slipping with respect to the passive portion 3c. As a result, the swinging force of the brake lever 4 does not act as an operating force for the swinging member 3, and the brake wire 10 does not move.

As shown in FIGS. 1 and 5, the gear shift lever 5 is provided with an operation arm portion 5a for the return member 32 of the gear shift operation device A, so that the gear shift lever 5 is swung about the third axis P. By doing so, the winding member 6 can be rotated and the gear can be changed. That is, when the gear shift lever 5 is oscillated from the original position where it is overlapped with the brake lever 4 in the direction of the third axis P to the gear shift position D shown in FIGS. 3 and 5 around the third axis P, the lever oscillates. Therefore, the operation arm portion 5a swings around the third axis P and presses against the end portion of the returning member 32, and the returning member 32 is wound around the second axis Y as shown in FIG. 6 rotates in the direction opposite to the winding rotation direction. When the return member 32 rotates in this manner, the release cam portion 32a provided at one end of the return member 32 reaches the free end side of the feed pawl 29 and presses the feed pawl 29 so as to be disengaged from the ratchet teeth 6a. By the operation, the rewinding and rotating operation of the winding body 6 becomes possible, and the return pawl 34 pivotally supported by the return member 32 via the pawl pin 33 is biased by the pawl spring 35 as shown in FIG. For effecting, one of the ratchet teeth 6a of the winding body 6 is engaged with the winding body 6 to rotate about the second axis Y to transmit the turning force of the returning member 32 to the winding body 6. The winding body 6 rotates in the rotation direction of the return member 32 to rewind the speed change wire 15. Gearshift lever 5
When the oscillating stroke reaches a predetermined stroke and the rewinding length of the speed change wire 15 reaches a predetermined length, the positioning mechanism 31 performs a positioning action and the winding body 6 is irrespective of the tension of the speed change wire 15. The return spring 36 can return the return member 32 to the rewind standby position and the gear shift lever 5 to the original position so that the return spring 36 does not rotate more than necessary. is there. As shown in FIG. 6, when the return member 32 is returned to the rewind standby position, the return claw 34 rides on the release cam portion 37a formed on the fixed member 37, disengages from the ratchet teeth 6a, and is wound by the feed claw 29. It is configured to enable the turning operation of the take-up body 6.

[Other Embodiment] FIG. 9 shows a brake operating device with a shift operating device for a bicycle according to another embodiment. Swing member 3
Is connected to the fixed member 2 via a connecting pin 8 so as to be pivotally supported, and the brake lever 4 is connected to one free end side of the swinging member 3, so that the brake lever 4 and The moving member 3 is connected to the fixed member 2 by the connecting pin 8
It is configured to swing around the first axis X of. A wire connecting portion 3a configured to use the wire end fitting 9 as a connecting tool is provided on the other free end side of the swinging member 3, and the fixing member 2 is passed from the brake device (not shown) through the inside of the handlebar 7. By connecting the brake wire 10 introduced inside the base end side portion 2a of the above to the swinging member 3 using the wire connecting portion 3a, and swinging the brake lever 4 around the first axis X, Due to the artificial lever operating force, the swinging member 3 operates the brake wire 10 to the pulling side to turn on the brake device, or the return operating force by the biasing force of the return spring 11 acting on the swinging member 3. And the self-restoring force of the braking device, the swinging member 3 operates the braking wire 10 to the slack side so that the braking device returns to the cut state. At this time, since the shift lever 5 is supported by the brake lever 4, the shift lever 5 swings together with the brake lever 4.

The brake lever 4 swings with respect to the swing member 3 about a second axis Y which is orthogonal or substantially orthogonal to the first axis X, and the shift lever 5 is a mounting pin for the brake lever 4. It is configured to swing about a third axis P which is parallel or substantially parallel to the biaxial core Y with respect to the brake lever 4 by a pivotal support via 16. The winding body 6 has a shaft at the front end of the fixing member 2 so that the base end side portion 2a of the fixing member 2 can be formed as thin as possible or the distance between the winding body 6 and the handle bar 7 can be made relatively large. A first operating portion 1 provided to the gear shift operating device main body A so as to be rotatable about a core Z and swingable about the axis Z.
The second or second operation portion 13 is configured to be interlocked with the brake lever 4 or the speed change lever 5 by the interlocking mechanism B. The first operating portion 12 or the second operating portion 13 is attached to the support shaft 14 of the winding body 6 so as to reciprocally swing, and the first operating portion 12 swings toward the going side to thereby wind the winding body. 6 is rotated around the axis Z toward the winding side, and the second operation portion 13 is swung toward the going side, whereby the winding body 6 is rotated around the axis Z toward the rewinding side. It is configured as follows. A gear shifting wire 15 introduced from the transmission (not shown) through the inside of the handlebar 7 into the inside of the fixed member 2 is connected to the winding body 6, and the brake lever 4 is shown from an original position N shown by a solid line in FIG. By swinging to the shift position U indicated by the phantom line in FIG. 10, the artificial lever operating force and the action of the interlocking mechanism B cause the first operating portion 12 to swing toward the forward side, and the winding body. 6 is configured to wind up the speed change wire 15 so that the speed change device is switched to the high speed side. At this time, the shift lever 5
Is supported by the brake lever 4, and thus swings together with the brake lever 4. Then, by swinging the shift lever 5 from an original position where it overlaps with the brake lever 4 in the direction of the third axis P to a shift position D shown by an imaginary line in FIG. Due to the lever operating force and the action of the interlocking mechanism B, the second operating portion 1
3 swings to the forward side, and the winding body 6 moves the shift wire 15
The transmission is switched to the low speed side by performing the rewinding operation of.

As shown in FIGS. 9 to 11, the interlocking mechanism B includes a first interlocking member 17 for interlocking the first operating portion 12 and the brake lever 4, the second operating portion 13 and the shift lever 5. The second interlocking member 18 for interlocking the
The interlocking member 17 is provided on the brake lever 4 together with the second member.
As the brake lever 4 swings from the original position N to the gear shift position D as shown in FIG. 10, it is connected to the mounting pin 16 so as to swing about the axis Y. The arm portion 17a of the first interlocking member 17 is configured to push and swing the first operating portion 12 to the forward side, and the arm portion 17a moves backward as the brake lever 4 returns to the original position N and swings. Since the first operating portion 12 is configured to move so as to allow the return swing of the first operating portion 12, the winding body 6 by the swing operation around the second axis Y of the brake lever 4 is performed.
The brake lever 4 is
The first operation unit 12 is configured to work together. Then, the second interlocking member 18 is rotatably attached to the brake lever attaching portion 3b of the swinging member 3, and as the shift lever 5 swings from the original position to the shift position D, as shown in FIG. The protrusion 5a of the speed change lever 5 is the second interlocking member 1
The second interlocking member 18 pivots around the second axis Y by pressing the passive portion 18a of the No. 8 and the arm portion 18b of the second interlocking member 18 operates the second operating portion 13 for this pivotal movement. The arm portion 18a is configured to perform a push-swing operation toward the going side, and as the speed change lever 5 returns and swings to the original position by the action of the return spring 19, the arm portion 18a swings backward and the second operation portion 13 returns and swings. Since the interlocking mechanism B is configured to be movable, the rewinding and rotating operation of the winding body 6 can be performed by the swinging operation of the speed change lever 5 around the third axis P. ,
The speed change lever 5 and the second operation unit 13 are configured to be interlocked. When the swinging member 3 swings around the first axis X, the arm portions 17a and 18b swing together with the swinging member 3 and come into sliding contact with the first operating portion 12 and the second operating portion 13. This enables the swinging of the brake lever 4 around the first axis X for the brake operation and the swinging of the speed change lever 5 around the first axis along with the swing of the brake lever. Is configured.

In the main body A of the gear shift operating device, when the first operating portion 12 swings to the forward side, the feed claw 20 provided on the first operating portion 12 engages with the ratchet teeth of the winding body 6. While rotating around the axis Z, the winding rotation operation of the winding body 6 can be performed by the swing operation of the first operating portion 12, and the winding rotation angle of the winding body 6 is predetermined. When the corner is reached, the first positioning claw 21 engages with the ratchet teeth of the winding body 6 to move the winding body 6 to the rewind spring 2
By operating the stopper so as not to return to the rewinding side regardless of the action of 2, the speed change wire 15 is maintained in the winding state and the original position N of the brake lever 4 is maintained.
It is possible to return to. Further, when the second operating portion 13 swings toward the going side, the cam portion provided in the second operating portion 13 operates to release the engagement of the first positioning claw 21 with the winding body 6 and the winding body 6 moves. By allowing the rewinding spring 22 to rotate, the rewinding and rotating operation of the winding body 6 by the swinging operation of the second operating portion 13 becomes possible, and the rewinding rotation angle of the winding body 6 becomes larger. When the predetermined angle is reached, the second positioning claw 23 automatically engages with the ratchet teeth of the winding body 6 and operates the stopper so as not to rewind the winding body 6 more than necessary. Rewinding the wire 15 in one speed step, and
The shift lever 4 is configured to be able to return to its original position.

[Other Embodiment] FIG. 12 shows a brake operating device for a bicycle according to still another embodiment. The brake wire 10 is operated by swinging the fixed member 2 of the swinging member 3 around the first axis X by swinging the brake lever 4 around the first axis X. The second lever Y with respect to the swinging member 3.
By swinging around, the winding body 6 can be rotated around the axis Z because of the interlocking of the brake lever 3 by the interlocking mechanism C and the first operating portion 12 of the transmission operating device main body A. Each of the configurations of the transmission main body A is the same as that of the brake operating device of FIG. 9, and the transmission operating lever 5 is different. That is, the gear shift operating lever 5 is also attached to the swing member 3 so as to swing around the second axis Y, and is linked to the second operating portion 13 of the gear shift operating device main body A via the interlocking mechanism C. Is configured. That is, the brake lever 4 is shown in FIG.
By swinging from the original position N indicated by the solid line 3 in FIG. 3 to the shift position U indicated by the phantom line in FIG. 13, the first lever 12 is operated due to the artificial lever operating force and the action of the interlocking mechanism C.
Is oscillated toward the going side, and the winding body 6 winds up the speed change wire 15. At this time, the gear shift lever 5 remains in the original position N shown by the broken line in FIG. 13 due to the action of the interlocking mechanism C. Then, by swinging the speed change lever 5 from the original position N around the second axis Y to the speed change position D shown by an imaginary line in FIG. 13, this artificial lever operation force and the action of the interlocking mechanism C are combined. For the second
The operation portion 13 swings toward the forward side, and the winding body 6 is configured to perform an operation for rewinding the speed change wire 15. At this time, the brake lever 4 remains in the original position N by the action of the interlocking mechanism C.

In the brake operating device of the type shown in FIGS. 9 and 12, in order to interlock the brake lever 4 and the winding body 6, in addition to the above-mentioned implementation means, interlocking means by link or rod, or interlocking means by gear. Any interlocking means may be adopted for implementation.

When using the brake operating device according to the present invention, in addition to mounting it on the drop type handlebar 7,
It may be attached to any type of handle bar such as a flat type. Further, in addition to the handle, it may be attached to various frame parts of the vehicle body frame such as a down tube for use. Therefore, the fixing member 2 is referred to as a member that fixes the bicycle to the bicycle.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of the entire bicycle brake operating device.

[Fig. 2] Side view of brake operating state

FIG. 3 is a front view of a swing member and a brake lever mounting portion.

FIG. 4 is a side view of a shift operation state.

FIG. 5 is a front view of the shift lever

FIG. 6 is a front view of a feed claw and a return claw.

FIG. 7 is a front view of the operating state of the feeding member.

FIG. 8 is a front view of the operating state of the returning member.

FIG. 9 is a partially cutaway side view of a brake operating device according to another embodiment.

FIG. 10 is a front view of a brake lever in a brake operating device according to another embodiment.

FIG. 11 is a front view of an interlocking mechanism in another embodiment brake operating device.

FIG. 12 is a front view of a brake lever in a brake operating device according to another embodiment.

FIG. 13 is a front view of an interlocking mechanism in another embodiment brake operating device.

[Explanation of symbols]

 2 fixing member 3 swinging member 3a connecting portion 4 brake lever 4a pressing portion 6 winding body 10 brake wire 15 speed change wire X first axis Y second axis

Claims (3)

[Claims] 1. A fixing member (2) for fixing to a bicycle, a brake lever (4) around a first axis (X), and a second axis (different from the first axis (X)). Y) is swingably provided, and the swing member (3) is swingably attached to the fixed member (2), and the connecting portion of the brake wire (10) is attached to the swing member (3). (3a) is provided, and the brake wire (10) is operated via the swing member (3) by swinging the brake lever (4) around the first axis (X), A speed change wire (15) attached to the fixing member (2) by swinging around a biaxial core (Y)
A brake operation device for a bicycle, which rotates a winding body (6) of the bicycle. 2. The brake lever (4) has a pressing portion (4a) that abuts and presses against the swing member (3) when the brake lever (4) swings around the first axis (X). The bicycle brake operating device according to claim 1, wherein the brake operating device is provided on the bicycle. 3. The bicycle brake operating device according to claim 1, wherein the brake lever (4) is attached to the swing member (3) so as to be swingable around the second axis (Y).