JP2012038155A - Operation wire drawing place adjusting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation wire drawing place adjusting device which can surely perform whirl-stop and give click stops of/to an adjust bolt and can be miniaturized.SOLUTION: The operation wire drawing place adjusting device having an adjust bolt 1 for performing drawing place adjustment of operation wire W extended from a control lever B supported swingably by a holder A by being rotationally operated includes: a steel ball 2 engageable with a groove formed on a side face of the adjust bolt 1; and a clip spring 3 insertable into an insertion hole Ac formed on the surface of the holder A and supported in cantilever within the holder A while inserted into the insertion hole Ac to energize the steel ball 2 in the direction of being engaged with the groove. The operation wire drawing place adjusting device can achieve whirl-stop of the adjust bolt 1 and give click stops during rotationally operating the adjust bolt 1 by the energization force of the clip spring 3.

Description

  The present invention is formed in a holder fixed to the front end side of a handlebar provided in a vehicle, and pulls an operation wire extended from an operation lever supported by the holder so as to be swingable by being rotated. The present invention relates to an operation wire drawing allowance adjusting device having an adjusting bolt for adjusting the allowance.

  A holder is fixed near the grip on the front end side of the handlebar of the two-wheeled vehicle, and operation levers such as a brake lever and a clutch lever are supported on the holder so as to be swingable. Then, by grasping the operation lever while grasping the grip grip, the operation lever is swung with respect to the holder, and the brake is applied via the operation wire (brake wire or clutch wire) extended from the operation lever. A brake operation or a clutch operation is performed on the device or the clutch device.

  However, in order to adjust the pulling margin of the operation wire, there has conventionally been proposed a device in which an operation wire pulling margin adjusting device is formed on the holder. As shown in FIG. 11, such a conventional pull adjustment device for an operation wire is attached to a holder A fixed to the handlebar H by screwing, and is rotated with respect to the holder A. An adjustment bolt 101 that moves forward or backward, an action ball 102 that can be locked in a plurality of grooves formed on a side surface of the adjustment bolt 101, and that can prevent the adjustment bolt 101 from rotating by the locking, and the action ball The coil spring 103 that urges the groove 102 in the direction of engaging the groove 102 of the adjusting bolt 101 and the retaining member 104 of the coil spring 103 are configured. The operation lever B is swingable about a swing shaft L provided on the holder A.

  The distal end portion of the outer tube h covering the outer periphery of the operation wire W (brake wire or clutch wire) is fixed to the adjusting bolt 101, and the distal end portion Wa of the operation wire W is fixed to a predetermined portion of the operation lever B. When the operation lever B is swung, the operation wire W is pulled and a desired operation (brake operation or clutch operation) is performed. However, by rotating the adjustment bolt 101 to move forward or backward relative to the holder A, the pulling distance of the operation wire W can be adjusted by variously changing the position of the tip of the outer tube h. In addition, since this prior art does not relate to the literature known invention, there is no prior art document information to be described.

  However, in the conventional pulling adjustment device for the operation wire, the coil spring 103 that urges the action ball 102 in the direction to engage the groove of the adjustment bolt 101 and the retaining member 104 for the coil spring 103 are required. Therefore, there is a problem that a space for disposing these is separately required for the holder A, and the apparatus is increased in size.

  The present invention has been made in view of such circumstances, and an operation wire pulling allowance adjusting device capable of surely preventing rotation of the adjusting bolt and imparting moderation and reducing the size of the device. Is to provide.

  The invention according to claim 1 is formed in a holder fixed to a front end side of a handlebar provided in the vehicle, and extended from an operation lever supported to be swingable by the holder by being rotated. An operation wire drawing allowance adjustment device having an adjustment bolt for adjusting an operation wire drawing allowance, an engagement member engageable with a groove formed on a side surface of the adjustment bolt, and a surface of the holder Alternatively, it can be inserted into an insertion hole formed on the back surface, and cantilevered in the holder while being inserted into the insertion hole, and urged in a direction to engage the engaging member with the groove portion. And a biasing force of the biasing means that can prevent rotation of the adjustment bolt and provide moderation during the rotation operation of the adjustment bolt. To.

  According to a second aspect of the present invention, in the pulling amount adjusting device for an operation wire according to the first aspect, the biasing member is inserted into the insertion hole by bending a linear member or a plate member having elasticity. An urging portion capable of urging the engaging member, and an engaging portion that is cantilevered by being engaged with the opening edge of the insertion hole in a state where the urging portion is inserted into the insertion hole. It is characterized by forming.

  According to a third aspect of the present invention, in the pulling amount adjusting device for an operation wire according to the second aspect, the urging member is formed by bending an elastic linear member or plate-like member into a U-shape when viewed from the front. The portion that forms two sides that are substantially orthogonal to each other is the urging portion and the locking portion, and the other portion that forms one side is that the urging portion is removed from the insertion hole. It is characterized in that it forms a drop prevention part for prevention.

  According to the first aspect of the present invention, the urging member that urges the engaging member in the direction in which the engaging member is engaged with the groove portion can be inserted into the insertion hole formed in the front surface or the back surface of the holder, and is inserted into the insertion hole. Since it is supported in a cantilevered manner in the holder, the adjustment bolt is prevented from rotating and moderation is applied compared to the one that is biased by a coil spring or the like that requires a relatively long dimension in the biasing direction. The operation wire pulling allowance adjusting device can be reduced in size while being surely performed.

  According to the invention of claim 2, the urging member is inserted into the insertion hole by bending a linear member or plate member having elasticity, and an urging portion that can urge the engaging member; Since the urging portion is inserted into the insertion hole and formed into a locking portion that is locked to the opening edge of the insertion hole and cantilevered, the urging member has a simple configuration. Can do.

  According to the invention of claim 3, the urging member is formed by bending an elastic linear member or plate-like member into a U-shape when viewed from the front, and a portion that forms two substantially orthogonal sides is formed. The urging portion and the locking portion, and the other part forming one side constitutes a detachment preventing portion for preventing the urging portion from coming out of the insertion hole. The number of parts can be reduced and the assembling workability of the operation wire drawing allowance adjusting device can be further improved as compared with a member for preventing the member from coming off.

The top view which shows the pulling allowance adjusting apparatus of the operation wire which concerns on embodiment of this invention Rear view showing the pulling adjustment device for the operation wire Schematic diagram partially broken to show the adjustment bolt and its interior in the operating wire pulling adjustment device A three-side view showing an adjusting bolt in the operating wire pulling adjustment device VV line sectional view in FIG. FIG. 4 is a four-side view showing an urging member in the pulling adjustment device for the operation wire VII-VII line sectional view in FIG. Sectional schematic diagram which shows the state by which the adjustment bolt of the operation wire pulling adjustment apparatus was rotated and the engagement member was unlocked from the groove. Sectional schematic diagram which shows the state by which the adjusting bolt of the operation wire pulling adjustment apparatus was rotated and the engaging member was latched by the adjacent groove part Sectional schematic diagram which shows the pulling margin adjustment apparatus of the operation wire which concerns on other embodiment of this invention. Top view showing a conventional operation wire pulling adjustment device

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The pull adjustment device for the operation wire according to the present embodiment is for adjusting the pull of the operation wire extended from an operation lever provided on the front end side of a handlebar provided in a vehicle such as a two-wheeled vehicle. As shown in FIGS. 1-7, it is mainly comprised from the adjustment bolt 1, the steel ball 2 as an engaging member, and the clip spring 3 as a biasing means.

  The applied operation lever B is composed of a brake lever or a clutch lever, and is capable of operating the brake device or the clutch device via the operation wire W by performing a swing operation about the swing shaft L. . The operation lever B is swingably supported by a holder A fixed to the handle bar H, and is gripped while gripping a grip grip G attached to the tip end side of the handle bar H, thereby initial position. A swing operation is possible from an operation position (a position indicated by a two-dot chain line in FIG. 1) to a position indicated by a solid line in FIG.

  The operation wire W has a distal end portion Wa (wire end) fixed to a predetermined portion of the operation lever B, and is pulled according to the swing operation of the operation lever B, whereby the brake connected to the proximal end side. The device or the clutch device can be operated, and the outer peripheral surface thereof is covered with the outer tube h. The operation lever B is always urged toward the initial position by the tension of the operation wire W, and naturally returns from the operation position to the initial position by loosening the operation force.

  The holder A is provided with a mounting hole Aa in which a female screw that can be screwed with a male screw (see FIG. 4) formed on the outer peripheral surface of the shaft portion 1b of the adjusting bolt 1 is provided while the adjusting bolt 1 is inserted. ing. Further, as shown in FIG. 7, the holder A is formed with an insertion hole Ab into which the steel ball 2 (engaging member) can be inserted, and the insertion hole Ab communicates with the attachment hole Aa.

  The communicating portion between the insertion hole Ab and the mounting hole Aa is set to be smaller than the diameter of the steel ball 2, and the steel ball 2 can be disposed in the communicating portion. Furthermore, insertion holes Ac and Ad into which the clip spring 3 (biasing member) can be inserted are formed on the front surface (see FIGS. 1 and 7) and the back surface (see FIGS. 2 and 7) of the holder A, respectively. These insertion holes Ac and Ad communicate with the insertion hole Ab.

  The adjustment bolt 1 is formed to project from the holder A by being inserted into the mounting hole Aa, and is extended from an operation lever B supported so as to be swingable by the holder A by being rotated. As shown in FIG. 4, the head portion 1a, the shaft portion 1b formed integrally with the head portion 1a, and the shaft portion 1b extend in the axial direction. It is mainly comprised from the groove part (Ma, Mb, Mc) formed in this way.

  As shown in FIG. 5, an outer tube hole 1 c and an operation wire hole 1 d are formed in the adjustment bolt 1 so as to extend in the axial direction. The outer tube hole 1c is a hole for fixing the distal end portion of the outer tube h, and the operation wire hole 1d is a hole for inserting the operation wire W therethrough. When the head 1a is gripped and rotated while the shaft 1b is inserted into the mounting hole Aa, the entire adjustment bolt 1 moves forward or backward with respect to the holder A, so that the pulling amount of the operation wire W is arbitrarily adjusted. The Rukoto.

  The groove portions (Ma, Mb, Mc) are formed in the shape of three grooves formed at equal intervals in the circumferential direction of the shaft portion 1b of the adjusting bolt 1, and each has a dimension capable of fitting the steel ball 2. Thus, in the process of rotating the adjusting bolt 1, the steel ball 2 as the engaging member is fitted in any of the grooves Ma to Mc, and the adjusting bolt 1 can be engaged with the rotating direction, When the adjusting bolt 1 is rotated against the urging force applied to the steel ball 2 by the clip spring 3, a moderation (click feeling) is provided. As a result, the adjustment bolt 1 can be prevented from rotating by the urging force of the clip spring 3 (the urging means) and the moderation during the rotation operation of the adjustment bolt 1 can be imparted.

  As shown in FIG. 6, the clip spring 3 as an urging member is formed by bending a linear member having elasticity into a U-shape when viewed from the front (see FIG. 7 for the front view). The portion forming the two sides is the urging portion 3a and the locking portion 3b, and the other portion forming the one side is to prevent the urging portion 3a from coming out of the insertion hole Ac. It is supposed to form part 3c. In the present embodiment, the linear member having elasticity is bent, but the plate member having elasticity is bent to form the urging portion, the locking portion, and the removal preventing portion. May be.

  The urging portion 3a includes a portion that can urge the steel ball 2 (engagement member) toward the adjustment bolt 1 in a state where the clip spring 3 is attached to the insertion hole Ac, and the locking portion 3b In a state where the portion 3a is inserted into the insertion hole Ac, the portion 3a is configured to be engaged with the opening edge of the insertion hole Ac to be cantilevered. That is, by bending the elastic linear member (or plate-like member) as shown in FIG. 6, the clip spring 3 (integrally formed with the biasing portion 3a, the locking portion 3b, and the removal preventing portion 3c is formed. (Biasing member) can be obtained.

  Furthermore, the bent-out prevention portion 3c is formed with a bent portion 3ca along the shape of the insertion hole Ab, so that the bent portion 3ca and the insertion hole Ab in a state where the clip spring 3 is inserted into the insertion hole Ac. Since they are matched and locked while having elasticity, it is possible to prevent the removal more reliably. However, when the clip spring 3 is inserted into the insertion hole Ac formed on the front surface side of the holder A (which may be the insertion hole Ad formed on the back surface side), as shown in FIG. While being cantilevered in the holder A, the steel ball 2 is pressed and urged by its elasticity.

  In such a state, the steel ball 2 is fitted into the groove Mc and engaged in the rotation direction, and the rotation is prevented so as to restrict inadvertent rotation. However, the steel ball 2 is adjusted against the urging force of the clip spring 3. When the bolt 1 is rotated with a relatively strong force, as shown in FIG. 8, the steel ball 2 is displaced downward and disengaged from the groove Mc, so that the adjustment bolt 1 is allowed to rotate. At this time, as shown in the figure, the urging portion 3a bends around the cantilever support portion on the side of the locking portion 3b, but the clip spring 3 and the steel ball 2 are separate, The abutting position of the steel ball 2 with respect to the urging portion 3a is changed so that the steel ball 2 can be smoothly displaced downward.

  Further, when the adjustment bolt 1 is further rotated, as shown in FIG. 9, the steel ball 2 is fitted into the groove portion Ma adjacent to the groove portion Mc, and is engaged in the rotation direction to prevent rotation again at that position. It will be. In the process of rotating the adjusting bolt 1 as described above, the steel balls 2 are sequentially fitted into the grooves Ma to Mc, whereby a moderation (click feeling) is obtained.

  According to the embodiment, the clip spring 3 (biasing member) that urges the steel ball 2 (engaging member) in the direction in which the steel ball 2 (engaging member) is engaged with the groove (Ma to Mc) is formed on the front surface or the back surface of the holder A. Can be inserted into the insertion hole (Ac or Ad), and cantilevered in the holder A while being inserted into the insertion hole (Ac or Ad). Compared to a conventional one that is urged by a required coil spring or the like, the adjustment bolt 1 can be reliably prevented from being rotated and moderation can be imparted, and the operating wire W drawing allowance adjusting device can be reduced in size. Can do.

  Further, the clip spring 3 as an urging member is inserted into the insertion hole (Ac or Ad) by bending a linear member (or plate-like member) having elasticity, and the steel ball 2 (engaging member). A biasing portion 3a capable of biasing, and the biasing portion 3a inserted into the insertion hole (Ac or Ad) and cantilevered at the opening edge of the insertion hole (Ac or Ad) Since the engaging portion 3b to be formed is formed, the urging member can have a simple configuration.

  In particular, in this embodiment, the clip spring 3 as the urging member is formed by bending a linear member (or plate-like member) having elasticity into a U-shape when viewed from the front, and is substantially orthogonal thereto. The portions forming the two sides are the urging portion 3a and the locking portion 3b, and the other portion forming the one side is for preventing the urging portion 3a from coming out of the insertion hole (Ac or Ad). Since the detachment preventing portion 3c is formed, the number of parts can be reduced and the workability of assembling the operation wire pulling adjustment device can be further reduced as compared with the case in which the urging member is prevented from being separated by a separate member. Can be improved.

  Although the present embodiment has been described above, the present invention is not limited to this. For example, instead of the steel ball 2 as an engaging member, a pin-shaped actuator (adjust bolt 1) as shown in FIG. It is also possible to use a spherical contact surface. In the present embodiment, the clip spring 3 as the urging member is composed of the urging portion 3a, the locking portion 3b, and the disconnection preventing portion 3c. For example, a linear member or plate having elasticity is used. It is also possible to bend the shaped member into a square shape so that the portion forming one side thereof is the urging portion 3a and the other portion forming one side is the locking portion 3b. In this case, since there is no disconnection prevention portion 3c, it is preferable to prevent the disconnection by using a separate means (for example, fixing the locking portion 3b with a screw or the like).

  Furthermore, in this embodiment, the urging member is made of the clip spring 3, but the urging member can be inserted into an insertion hole (Ac or Ad) formed on the front surface or the back surface of the holder A. (Ac or Ad) is supported in a cantilevered manner in the holder A while being inserted through (Ac or Ad), and urges the engaging member (steel ball 2) in a direction to engage the groove (Ma to Mc). Any other form may be used. The present invention can be applied to other types of vehicles (such as snow vehicles and buggies) as long as the operation lever is provided on the front end side of the handlebar in addition to the two-wheeled vehicle.

  The engagement member that can be engaged with the groove formed on the side surface of the adjustment bolt and the insertion hole formed on the front surface or the back surface of the holder can be inserted, and the piece in the holder is inserted into the insertion hole. And an urging member that urges the engaging member in a direction to engage the groove portion, and the adjustment bolt can be prevented from rotating by the urging force of the urging means. As long as the operation wire pulling allowance adjustment device provides moderation during the rotation operation, it can also be applied to devices with different external shapes or with other functions added.

1 Adjustment bolt 1a Head 1b Shaft 2 Steel ball (engagement member)
3 Clip spring (biasing member)
3a Energizing part 3b Locking part 3c Removal prevention part 4 Actuator (engaging member)
A Holder Ac, Ad Insertion hole B Operation lever H Handlebar W Operation wire

Claims (3)

It is formed in a holder fixed to the front end side of a handlebar provided in the vehicle, and adjusts the pulling allowance of an operation wire extended from an operation lever swingably supported by the holder by being rotated. An operating wire pulling adjustment device having an adjusting bolt for
An engaging member engageable with a groove formed on a side surface of the adjusting bolt;
The holder can be inserted into an insertion hole formed on the front surface or the back surface of the holder, and is cantilevered in the holder while being inserted into the insertion hole, and the engagement member is engaged with the groove portion. A biasing member biasing in the direction;
And a biasing force adjusting means for adjusting the operating wire, wherein the adjusting bolt can be prevented from rotating by the urging force of the urging means, and the moderation during rotation of the adjusting bolt is given.   The urging member includes an urging portion that can be inserted into the insertion hole to urge the engaging member by bending a linear member or plate-like member having elasticity, and the urging portion includes the urging portion. 2. The operating wire pulling allowance adjusting device according to claim 1, further comprising a locking portion that is locked to the opening edge of the insertion hole and is cantilevered while being inserted into the insertion hole. .   The biasing member is formed by bending a linear member or a plate-like member having elasticity into a U-shape when viewed from the front, and the portions that form two substantially orthogonal sides are the biasing portion and the locking portion. 3. The operation wire according to claim 2, wherein the other portion forming one side forms a removal prevention portion for preventing the urging portion from coming out of the insertion hole. Pull-in adjustment device.

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