JPH02106482A - Steering device for bicycle - Google Patents

Abstract

PURPOSE:To easily carryout turning operation by operating a thumb in the natural holding direction by installing the operation part of an operating lever which permits the multistage speed change operation and can be returned to an original position after the speed change operation extends to a grip side. CONSTITUTION:An installation member 13 having a supporting shaft 31 which is directed downward for a handle bar 1 is installed onto the bracket of a brake lever device A fixed in the vicinity of the grip 11 of the handle bar 1, and an operating lever 2 is supported in swingable ways onto the supporting shaft 31. The operating lever 2 is positioned under the handle bar 1, and a position setting body 4 for setting the operation starting position (original position) of the operating lever 2 behind the handle bar 1 is installed between the operating layer 2 and the installation member 3, and the operation part 21 of the operating lever 2 is directed towards the grip 11. Further, a lever spring 5 for returning the operating lever 2 to the original position after the speed change operation is installed between the operating lever 2 and the supporting shaft 31, and the operating lever 2 is turning-operated from the original position at all times.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a handlebar device for a bicycle, and more particularly, to a handlebar device for a military bicycle, which comprises a handlebar having a grip, and a shift control lever attached near the grip. .

(Prior Art) Conventionally, a control lever mounted near the grip on the handlebar that returns to its original position after a gear shift operation is already known, as seen in Japanese Patent Laid-Open No. 143275/1983. .

This conventional device has an operating lever above the handlebar that can swing horizontally at a predetermined angle from its original position behind the handlebar via a vertical axis substantially perpendicular to the axis of the handlebar. The operating lever is pivotably supported so that the operating lever can return to its original position after a gear change operation, and when the grip is gripped, the operating lever in the original position is rotated using the thumb located inside the grip. This is how it was done.

(Problem to be Solved by the Invention) However, in the above-mentioned conventional device, there is a
An operating lever is provided with the original position at the rear of the handlebar, and this operating lever is rotated in a horizontal direction with the thumb of the hand holding the grip. When riding a bicycle while gripping the grip with the thumb and four fingers of the hand gripping the grip, with the thumb facing inward and the four fingers other than this thumb facing the outside. When performing a gear shifting operation, it is necessary to lift the thumb, which is gripping the inner side of the grip, upwardly relative to the grip to operate the operation lever at the original position. As a result, the anti-slip effect of the thumb of the hand that grips the grip is almost eliminated, and the hand that grips the grip easily slips against the grip, increasing the risk of running. Since the thumb of the hand has to be pulled up in a direction that is significantly different from the direction in which the grip is naturally gripped to rotate the operating lever in its original position, there was a problem in operating this operating lever as well. be.

The present invention was developed in view of the above problems, and its purpose is to:
By moving the thumb of the hand that grips the grip and the thumb in a natural gripping direction without significantly disrupting the loop formed by the four fingers, the operating lever in its original position can be easily rotated. This makes it possible to increase safety when driving.

(Means for Solving the Problems) Accordingly, the present invention provides a handlebar (1) having a grip (11) with an axis substantially perpendicular to the axis of the handlebar (1) below near the grip. The handlebar (1) can be swung between a rear original position and a forward position centering on the center, and can be operated in multiple stages by rotating in one direction from the original position to the forward position, and can be operated in multiple stages. The operation lever (2) that can be returned to the original position is
) is attached so that the operating section (21) extends toward the grip (11).

(Function) Grip (11) with the thumb and four fingers excluding the thumb.
When performing a gear shift operation while operating the handlebar while gripping the handlebar, use the control lever (near the grip on the handlebar (below) and its original position behind the handlebar (
2), the thumb of the hand gripping the grip (11);
The thumb gripping the inner part of the grip can be moved in a natural gripping direction without significantly disrupting the loop formed by the four fingers other than the thumb, and the grip can be rotated easily. (11) The thumb of the gripping hand can fully exert the anti-slip effect, preventing the gripping hand from slipping unexpectedly and allowing safe steering operation, which improves overall safety when driving. It is possible to increase the

(Embodiment) As shown in FIG.
The handlebar (1) is provided below so as to be able to swing from the original position at the rear of the handlebar (1) to the front position about an axis substantially perpendicular to the axis of the handlebar (1), and from the original position to the front position. The operating lever (2
) is attached so that the operating portion (21) of the lever (2) extends toward the grip (11).

Specifically, a bracket in the brake lever device (A) fixed near the grip (11) on the handlebar (1) is used, and a support shaft oriented downward with respect to the handlebar (1) is attached to this bracket. (31)
A mounting member (3) having an operation part (21) is swingably supported on the support shaft (31) of the mounting member (3). Lever (2
) is located below the handlebar (1), while
between the operating lever (2) and the mounting member (3),
A position setting body (4) is provided to set the operation start position (hereinafter referred to as the original position) of the operation lever (2) behind the handlebar (1), and the operation part (21) is set as shown in FIG. The operating lever (2) can be rotated from the original position toward the forward position with the thumb (U) of the hand holding the grip (11), pointing in the direction of the grip (11). A lever spring (5) that allows multi-speed shifting to be performed by operation, and that is located between the operating lever (2) and the support shaft (31) to return the operating lever (2) to the original position after the gear shifting operation. , so that the operating lever (2) can always be rotated from the original position.

Therefore, the grip (11)
With the thumb (U) of the hand gripping the handle facing inward and the four fingers other than this thumb facing outward, grip the grip (11) with these thumbs and four fingers and operate the handle. When performing a gear shift operation when the user is in the grip (11), the thumb (U) that grips the inner part of the grip (11) is not pulled up against the grip (11); in other words, the thumb and four fingers other than the thumb are While maintaining the loop caused by
) can be easily rotated. Therefore, the anti-slip effect of the thumb (U) of the hand holding the grip (11) can be fully exerted, and the hand holding the grip (11) can be prevented from slipping, and the operating lever (2) can be easily operated. Combined with the ability to rotate the vehicle, safety during driving can be improved.

The mounting member (3) is attached to the cylindrical support shaft (31).
), and a base body (32) on which the support shaft (31) is erected and formed integrally with the bracket of the brake lever device (A).
), these support shafts (31) and the base body (32
) can be repositioned in the circumferential direction of the support shaft by fitting the plurality of fitting protrusions into the fitting holes, and are connected to the support shaft (31) with a tightening screw (10). The operating lever (2) and a substantially cylindrical winding body (6) having a wire locking portion (61) for locking one end of the operating wire are rotatably supported; Further, a plurality of grooves (33) and thread grooves extending in the axial direction are provided on the outer periphery of the distal end of the support shaft (31), and the operating lever is controlled by a nut (100) that is screwed into the thread grooves. (2) and the winding body (6) are prevented from coming off. Further, a spring receiving plate (34) is provided on the groove (33) of the support shaft (31), and the spring receiving plate (34) is provided with a spring receiving plate (34).
) and the winding body (6) are interposed a return spring (62) that biases the winding body (6) in the wire rewinding direction. Note that the base body (32) may be directly fixed to the handlebar (1) via a band member or by direct attachment.

Further, the winding body (6) has a wire locking portion (61) on the negative side.
) between the winding body (6) and the support shaft (31) for positioning the rotational position of the winding body (6) in stages. a positioning body (72) having a retaining part (71); and an engaging body (73) that engages with the engaging part (71) to maintain the rotating position of the winding body (8).
) and a pressing spring (74) that presses the retaining body (73) in the direction of the retaining part (71) to maintain engagement of the engaging body (73) with the engaging part (71). A position holding/clicking mechanism (7) is provided. Further, a wire guide groove (63) continuous with the wire engagement part (61) is recessed in the circumferential direction on the outer periphery of the intermediate portion of the winding body (6).

Further, the operation lever (2) includes the operation section (21),
It consists of a base (22) of a plate rod having a fitting hole that fits into the support shaft (31), and this base (22) is rotatable relative to the winding body (6). A contact part (23) that contacts the setting part (41) of the position setting body (4) in the original position is provided at the intermediate part of the base part (22), and a claw-shaped cane is provided at one end. A biasing spring (2) pivotally supports the transmission body (24) and biases the transmission body (24) in one direction between the transmission body (24) and the base (22).
5), and the winding body (
6) is rotated in the wire winding direction. Further, the operating lever (2) has the operating portion (21) and the base (22) formed separately, and moves the operating portion (21) and the base (22) from the original position to the forward position. are not capable of relative rotation, and are connected such that relative rotation from the original position to the lower position is possible. Specifically, a pair of connecting pieces (26) extending in the same direction as the axis of the support shaft (31) are provided on the other end of the base (22), and these connecting pieces (26)
In between, there is a horizontal axis (27) perpendicular to the axis of the support shaft (31).
), the operating portion (21) is rotatably supported on the horizontal shaft (27) from the original position to a downward position, and the operating portion (21) is provided between the operating portion (21) and the base (22). Operation unit (2
1) is interposed with a return spring (28) that urges the lever to the original position to maintain the operating portion (21) in the original position and rotate the operating lever (2) from the original position to the forward position. During operation, the operating part (21) is prevented from rotating relative to the base (22), and the operating part and the base are rotated about the support shaft (31) in an integrated state, and the operating lever (2 ) from the original position to the lower position, the base (22) is prevented from rotating, and only the operating part (21) is rotated to the lower position about the horizontal axis (27). I'm trying to get it. The operating portion (21) is configured such that its upper end surface is brought into contact with the lower surface of the base portion (22) and cannot be rotated from the original position to the upper position.

Further, the position holding/clicking mechanism (7) is provided between the operation section (21) and the position holding/clicking mechanism (7).
A control lever (81) is provided for moving one of the positioning body (72) and the engaging body (73), and the operation of the control lever (81) causes the engaging body (73) and the retaining part (71) to move.
), the position holding control mechanism (8) releases the position holding of the winding body (6) and allows the winding body (6) to move back by the return spring (62). It is set up.

The control lever (81) is formed integrally with the operating portion (21), and is configured to move from the lower position to the upper position when the operating portion (21) is rotated from the original position to the lower position. It has become.

Further, the positioning body (72) in the position holding/clicking mechanism (7) has a disk shape with a fitting hole in the center, and is fitted to the outer periphery of the winding body (6) in a relatively non-rotatable manner. The engaging portions (71) are provided on the side surface thereof at predetermined intervals in the circumferential direction, and the engaging portions (71) are provided on the outer circumferential surface side for moving the operating lever (2) from the original position to the forward position. During dynamic operation, the operating lever (2) engages with the transmission body (24).
Passive parts (75) for transmitting the operating force are provided at predetermined intervals in the circumferential direction, and each of the retaining parts (71) is provided on the other side.
A plurality of regulating pieces (76) protrude outward in the plate thickness direction from the open position, the engaging body (73) consists of a pole, and the pressing spring (74) , a hemispherical suppressing portion (74) that receives a part of the engaging body (73) and a fitting hole that fits into the groove (33) of the support shaft (31);
a), and these positioning bodies (7
2), the engaging body (73), and the pressure spring (74) are opposed to each other in the axial direction of the support shaft (31), and the pressure spring (74) is aligned with the support shaft (31) relative to the positioning body (72). ) is elastically deformable in the axial direction, and when the control lever (81) is operated, the control part (82) provided at the tip of the control lever (81) is brought into contact with the pressure spring (74), and this The pressing spring (74) is elastically deformed in the axial direction to weaken the compression of the engaging body (73), so that the engaging body (73) can be moved in the direction away from the retaining portion (71). The pressing spring (74) has a long hole (74b) extending in the circumferential direction at an intermediate portion between the fitting hole and the suppressing part (74a), and a long hole (74b) extending from the pressing part (74a). A control portion (82) of the control lever (81) further extends radially outward.
) and a passive part (75) of the transmission body (24) that protrudes in the opposite direction to the contact part (77) when the lever (2) returns to its original position. A release portion (78) is provided for releasing the engagement.

Further, the positioning body (4) formed in a plate shape is interposed between the positioning body (72) and the pressing spring (74),
The position setting body (4) has a through hole (42) that receives the engagement body (73) and prevents the engagement body (73) from shifting.
has been established.

Further, the setting part (41) provided in the position setting body (4) is
It is formed by bending a part of the position setting body.

Further, the positioning control mechanism (8) includes the control lever (
81) and a contact portion (77) provided on the pressure spring (74).
The control lever (81) includes a lever (
81) during forward movement about the horizontal axis (27), it comes into contact with the abutment part (77) and moves the pressure spring (74) to the support shaft (
The control section (82) is provided to elastically deform the winding body (6) in the axial direction of the winding body (6) by elastic deformation of the pressing spring (74). Due to the force of the return spring (62), the positioning body (7)
2) rotates together with the winding body (6), and the engaging body (
73) is released from the locking portion (71). Further, the control lever (81) includes a lever (81).
During the forward movement operation in step 1), the regulating piece (
a limiting portion (83) that engages with the positioning member (76) and prevents the amount of backward movement of the positioning body (72) from exceeding the distance between the engaging portions (71);
) has been established.

Note that (9) in the figure indicates the operation lever (2) and the winding body (
6) is a bowl-shaped cover that covers the proximal end side.

The handle device configured as described above is mainly used with a rear derailleur for a 5- to 6-speed transmission, and the one shown in FIGS. 2 and 3 is in the crystal gear position, with the operating lever (2) is biased by the lever spring (5), and the contact part (23) of this lever (2) contacts the setting part (41) of the position setting body (4) and is stopped at the original position. . Then, as shown in FIG. 1, the thumb (U) of the hand holding the grip (11) is brought into contact with the operating portion (21) of the operating lever (2) which is stopped at the original position, and the state shown in FIG. When the forward movement is performed counterclockwise from the position to the forward position, the transmission body (
24) engages with one of the passive parts (75) of the positioning body (72), and the operating force of the operating lever (2) is applied to the positioning body (72).
) to the winding body (6), and this winding body (6)
moves forward in the counterclockwise direction to pull the operating wire, and when the forward rotation of the lever (2) reaches one pitch stroke of the engaging portion (71), the gear can be shifted to one gear. ,2
When the pitch stroke is reached, the gear can be shifted to two gears, and up to the third gear, each gear can be shifted by one operation of the thumb.
Alternatively, multiple gears can be shifted at once. In addition, when shifting to four or more gears, first return the operating lever (2) to its original position, then press the operating lever (2) again.
By moving the gear forward from the original position to the forward position, it is possible to shift gears one gear at a time or multiple gears all at once. Then, when the gear is shifted to a desired low speed position, the engaging body (73) engages with a desired retaining part (71) as shown in FIG. 6, and the rotation of the winding body (6) in the backward direction is prevented. This allows the gear shift state in which the gear has been shifted to the lower speed side to be reliably maintained.
Further, when the engaging body (73) engages with the engaging portion (71), the pressing spring (74) is elastically restored and the operating lever (2
) suddenly decreases, so that the hand operating the operating lever (2) can feel a click at each gear stage. Therefore, the driver can be aware of the gear to which the gear has been shifted. After shifting as described above, when the lever (2) is released, the lever (2) moves back in the backward movement direction (clockwise in FIG. 6) by the force of the lever spring (5). When the abutment part (23) comes into contact with the setting part (41), the lever (2) returns to its original position as shown in FIG. 3 and stops, preparing for the next operation.

Therefore, when the number of gears is 5 to 6, it is possible to shift from high speed to low speed without difficulty by moving the operating lever (2) forward twice by pressing the j11 finger.

Next, in order to shift from the state shown in Fig. 6 in which the gear has been shifted to the low speed side to the high speed side again, the operation lever (2) in the original position must be pressed.
The control lever (81) provided integrally with the operating section is moved upward from the lower position by pushing the operating section (21) downward, and this forward movement causes the control lever (81) to
The control unit (82) provided in the press spring (74)
77), and the pressing spring (74) presses the support shaft (31).
) is elastically deformed in the axial direction, and this pressing spring (7
The urging of the engaging body (73) is released by the elastic deformation of step 4), and the winding body (6) moves back by a predetermined amount by the force of the return spring (62). At this time, the restricting portion of the control lever (81) (
83) is one regulating piece (
76) and the return spring (6) of the winding body (6)
2), and when the operation of the operating section (21) is released, the operating section (21) moves back by the force of the return spring (28) and the limiting section (83) is regulated. When the engagement with the regulating piece (76) is disengaged, the pressing spring (74) is elastically restored and the engaging body (73) is urged toward the retaining part (71). The winding body (6) engages with the positioning body (72) before it engages with the retaining part (71).
At the same time, the engagement body (73) moves back by the force of the return spring (62), and engages with the engagement portion (71) on the - stage low speed side of the positioning body (72), and due to this engagement, the winding The return spring (62) of the handle (6) prevents the return movement, making it possible to reliably maintain the high gear shift state. When the control lever (81) is engaged, the pressure spring (74) is elastically restored and the load acting on the control lever (81) suddenly decreases.
A click feeling can be given to the hand operating the operating section (21). In addition, the operation section (21
) comes into contact with the lower surface of the base (22) and stops at the original position as shown in FIG. 2, preparing for the next operation. Then, when the operation part (21) that is stopped at the original position is pushed downward again, the engagement body (73) is disengaged from the retaining part (71), and the winding takes place. The body (8) moves back by the force of the return spring (62), further relaxing the wire and shifting to a higher speed position, and the engaging body (73) is moved by the force of the pressure spring. (74) and engages with the adjacent low-speed side retaining part (71), and can maintain the retracting position of the winding body (6). The speed change is performed because the limiting portion (83) of the control lever (81) engages with the regulating piece (76) every pitch of the engaging portion (71), thereby regulating the amount of backward movement of the winding body (6). , the control lever (81) needs to be operated forward a number of times corresponding to the number of gears.
76), the amount of engagement of the engaging body (73) with the retaining portion (71) is controlled by adjusting the operation of the control lever (81), and the winding body (6) is moved every - stage. Alternatively, the speed may be changed by rotating multiple stages at once.

In the embodiment described above, the return spring (62) is provided to cause the winding body (6) to move backward, but other methods may also be used, such as using a return spring in a transmission,
The winding body (6) may be moved back by the force of this return spring. Therefore, the roll body (6)
The return spring (62) provided between the spring support plate (34) and the spring receiving plate (34) provided on the mounting member (3) is not necessarily required.

In addition, the engaging portion (71) and the engaging body (73) of the position holding/clicking mechanism (7) are opposed in the axial direction of the support shaft (31), and are also opposed in the radial direction of the support shaft (31). Alternatively, the positioning body (72) may be attached to the mounting member (3).
The engaging body (73) may be fixed to the side, and the engaging body (73) may be provided so as to be rotatable relative to the positioning body (72) in conjunction with the rotation of the winding body (6). Note that among the positioning body (72) and the engaging body (73), the fixed side member is the mounting member (3).
The rotating member may be formed integrally with the winding body (6). Further, the engaging body (73) may be a rolling body such as a ball, or may be, for example, the pressing spring (73) as shown in FIG.
74), the pressing portion (74) of this pressing spring (74) is
74a) may be bulged in the direction of the retaining portion (71), and this bulging portion may be used as the engaging body (73). In addition to using a plate spring as the pressing spring (74), a coil spring as shown in FIG. 9 may be used. In this case, the engaging body (73) is held in the holding part (50a) of a disc-shaped holding part (50) having a hemispherical holding part (50a), and The pressing spring (74) is interposed between the spring receiver (51) provided on the support shaft (31), and the holding body (50) is moved by the operation of the control lever (81).
is moved in the axial direction of the support shaft (31) to elastically deform the pressing spring (74). Further, in the case of FIG. 9, for example, a contact portion (50b) is provided on the outer periphery of the holding body (50), and the control lever (8
1), a hawk-shaped control ff1 that can come into contact with the abutting portion;
(84) is provided. Moreover, the pressure spring (74)
When using a fill spring as shown in FIG. 10, a holder (52) having a bottomed cylindrical holder (52a) for receiving the engaging body (73) is supported on the support shaft (31), as shown in FIG. The holding part (52a) holds the engaging body (73) and the pressing spring (74), and the holding part (71) is formed with a through hole so that the control lever (8
1), a plurality of protruding control parts (85) that can be thrust into each of the retaining parts (71) are provided in place of the control part (82) and the restriction part (83), and the control lever (81) The operation causes each of the control parts (85) to enter into each of the retaining parts (71), and one of these control parts causes the engagement part (71) of the engagement body (73) to engage with the engagement part (71). It may be configured such that the locking is released and the winding body (6) is moved back by the force of the return spring (62).

Moreover, the control lever (81) in the positioning control mechanism (8)
) may be formed integrally with the operating portion (21) of the operating lever (2), or may be pivoted to the mounting member (, 3) side member. In addition, the positioning control mechanism (8
) has a structure equipped with the control lever (81), and
The control lever (81) is eliminated and the operation lever (2
) may be provided with play in the shaft hole portion that fits into the support shaft (31) and may be tilted in the axial direction (vertical direction). (
2) supports a control pin or control lever biased in the backward direction by a spring, and operates this control pin or control lever with respect to the operating lever (2) to elastically deform the spring (74); By moving the engaging body (73), the engaging body (73) is moved.
3) and the engaging portion (71) may be disengaged from each other, and the configuration thereof is not particularly limited.

(Effects of the Invention) As described above, the present invention provides a handlebar (1) having a grip (11) with an axis approximately perpendicular to the axis of the handlebar (1) located below near the grip. , the handlebar (1) can be swung between a rear original position and a forward position, and can perform multi-speed gear shifting by rotating in one direction from the original position to the front position, and is returned to the original position after the gear shifting operation; The operating lever (2) that can be returned to the
) is attached so that it extends toward the grip (11), so when the handle is operated by gripping the grip (11) with iti and four fingers excluding the thumb, this Grasping hands! Make the loop between the thumb and the four fingers thick (without breaking it, and without moving this gripping hand more than necessary relative to the grip, move the thumb in the direction of naturally gripping the control lever ( 2) can be rotated.Therefore, when changing gears, the thumb of the hand holding the grip (11) can fully exert the anti-slip effect, and prevent the hand holding the grip from slipping unexpectedly. This makes it possible to safely operate the handle while holding the grip (11).
The operating lever (2) is very easy to operate, and overall safety during driving can be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the handle device of the present invention;
Fig. 2 is an enlarged cross-sectional view of a part of the operating lever with part omitted, Fig. 3 is a reduced plan view of the same, Fig. 4 is a reduced cross-sectional view taken along line IV-EV in Fig. 2 with part omitted, and Fig. 5. is a reduced cross-sectional view with a part of the line ■-■ in FIG. 2 omitted; FIGS. 6 and 7 are explanatory diagrams showing the operating state; and FIG. It is an explanatory diagram. (1)...Handlebar (11)...Grip (2)...Control lever (21)...Control unit

Claims (1)

[Claims] 1) At the bottom of a handlebar (1) with a grip (11) near the grip, at the rear of the handlebar (1), centered on an axis substantially perpendicular to the axis of the handlebar (1), The control lever (2) is capable of swinging between a home position and a forward position, is capable of multi-speed shifting by rotating in one direction from the home position to a forward position, and is capable of returning to the home position after the speed change operation. , the operation part (21) of the lever (2)
) is attached so as to extend toward the grip (11).