JP2009132343A - Brake lever adjustment device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple structure with the small number of parts having no risk that fingers or the like are clamped by an adjustment part or the like, also easily performing adjustment work at the multi-stage, and also effectively suppressing rattling of a brake lever. <P>SOLUTION: In the brake lever adjustment device, adjustment mechanisms (5, 7, 8, 9, 10) for adjusting a clearance between the brake lever 6 and a grip 2 are provided between the brake lever 6 and a pivot shaft 5. An adjust bolt 7 having an adjustment knob 8 and thread-engaged with the pivot shaft 5 or the brake lever 6 is arranged between the brake lever 6 and the pivot shaft 5, thereby, the adjust bolt 7 itself can be functioned as a pivot arm of the brake lever 6 and an adjustment mechanism and the number of parts can be outstandingly reduced. The adjust bolt 7 constituting the adjustment mechanism and easily adjusted by the adjustment knob 8 is thread-engaged with the pivot shaft 5, thereby, the pivot shaft 5 is not totally removed out without providing a particular removal-stop member. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention has a brake lever adjusting device having an oscillation shaft of a brake lever in the vicinity of the grip, and an adjusting mechanism for adjusting an interval between the brake lever and the grip between the brake lever and the oscillation shaft. About. In particular, it is suitable for an infant bicycle on which an infant with a small palm or the like gets on, but is not necessarily limited to an infant bicycle.

For infant bicycles where infants with small palms are on board, there are various ways to make it easier for small infants to grasp the grip of the handle and to perform the brake operation, and to prevent fingers from being caught in the operation part. Ingenuity has been applied. For example, as disclosed in Patent Documents 1 and 2 below, an adjustment mechanism that adjusts the distance between the brake lever and the grip is provided to adjust the grip margin of the brake lever. As shown in FIG. 3, the grip and the brake lever are partially offset in the front view so that a part of the swinging trajectory of the brake lever in plan view overlaps with the grip, and the distance between the grip and the brake lever. Is configured so that a large brake stroke can be ensured even if it is small, as disclosed in the following Patent Document 4, the outer diameter of the handle grip (grip) is set small, and further disclosed in the following Patent Document 5 A cover that covers the movable part of the brake lever as described above and that can prevent the fingers of the infant from being caught is proposed.
JP 2004-196234 A (refer to abstract) Japanese Utility Model Publication No. 4-37834 (Refer to the scope of utility model registration request) Japanese Utility Model Publication No. 2-120299 (refer to claims for utility model registration) JP-A-8-156867 (see abstract) Japanese Utility Model Publication No. 4-29485 (refer to the claims of utility model registration)

  The conventional examples disclosed in each of the above-mentioned patent documents will be briefly described in order. As shown in FIG. 9A, the operation lever position adjusting mechanism for a vehicle disclosed in the patent document 1 A brake lever 101 including a lever member 103 pivotally supported on a member 102 by a shaft 106 is pivotally attached to a handle stem by a shaft 105. The action member 102 swings about a shaft 105 as a fulcrum and is configured to press a brake master cylinder (not shown). Adjustment of the position of the lever member 103 relative to the action member 102 is performed by rotating a pentagonal adjustment cam 110 that is rotatably installed on the lever member 103. Since the distance from the center of each side of the adjustment cam 110 is different, the relative position of the lever member 103 with respect to the grip is adjusted by the rotation of the pentagonal adjustment cam 110. As shown in FIG. 9B, the adjustment dial 109 for rotating the adjustment cam 110 engages with the positioning protrusion 113b of the wave washer 113 fixed to the lever member 103, thereby providing a five-step click feeling. Is obtained.

  As shown in FIG. 10, the hydraulic master cylinder device for a vehicle disclosed in Patent Document 2 includes an action arm 215 b of a brake lever 215 that is pivotally supported by a support pin 216 with respect to a lever holder 214. As a mechanism for adjusting the distance between the piston 208 of the hydraulic master cylinder 201 installed in the lever holder 214, the adjustment knob 223 fixed to the adjustment bolt 222 screwed to the piston 208 is rotated, The distance between the brake lever 215 and the accelerator grip 202 is adjusted by locking the adjustment position with the lock nut 225. A return spring 224 disposed between the washer 226 at the end of the adjustment bolt 222 in the through holes 229a and 229b of the working arm 215b of the brake lever 215 is provided to prevent the brake lever 215 from rattling.

  As shown in FIG. 11, the two-wheeled vehicle operating lever disclosed in Patent Document 3 is pivotally attached to a fixing member 302 such as a lever bracket standing on the handle H by a pivot 303 so as to move toward or away from the handle. In a two-wheeled vehicle operation lever 304 such as a rotating brake lever, at least the distal end side 304C of the extending portion of the operation lever 304 is formed to be rotationally displaced along the side of the handle or grip G when the operation lever 304 rotates. With this configuration, as shown by the alternate long and short dash line in FIG. 11A, a part of the swinging locus in plan view of the distal end side 304C of the operation lever 304 overlaps the grip G. That is, as shown in FIG. 11 (B), the grip G and the distal end side 304C of the operation lever 304 are partially offset in front view. Each and centerline L1 and L2) is brought in, and so can be secured a large brake stroke a small gap between the operating lever 304 and the operation lever 304.

  As shown in FIG. 12, the bicycle handle structure disclosed in Patent Document 4 has a handle grip portion 412 having an outer diameter set smaller than a normal one, and a base end portion approaching the handle grip portion 412. The brake lever 414 is bent in a substantially L shape and extends obliquely. With this configuration, it is possible to sufficiently grasp the handle grip portion 412 and the brake lever 414 even when the palm is small.

  As shown in FIG. 13, the brake lever with a cover disclosed in Patent Document 5 has a lever portion 512 fitted into a fixture 511 and pivotally supported, and the fixture 511 is fixed to a bicycle handle. The cover-equipped brake lever is configured so that the cover 501 covers the front surface of the fixture 511 and has a first hole 521 having a diameter larger than that of the hole at a position aligned with the brake wire insertion hole of the fixture 511. A front wall surface 502 having a guide portion 523 projecting forward in a cylindrical shape on the periphery, and left and right side wall surfaces 503 (504) covering the base end side of the side surface of the lever portion 512 together with the left and right side surfaces of the fixture 511. And the cover 501 is externally fitted to the fixture 511 and attached to the fixture 511 via an attachment means. Thus, it is possible to prevent a passenger such as an infant from getting a finger caught in the movable part of the brake lever.

  However, in such a conventional motorcycle brake lever adjusting device disclosed in the above-mentioned cited document 1, the adjustment of the position of the lever member 103 with respect to the action member 102 is only five stages, and the adjustment position is restricted. In addition, the spring 111, which also serves to prevent the lever member 103 from rattling, is also arranged at another position, and the structure becomes complicated. Furthermore, the wave washer 113 that gives a click (moderation) feeling to the adjustment dial 109 has only a positioning function. In addition, since the one disclosed in the cited document 2 relates to a hydraulic cylinder type brake device, a support pin 216 that is a swinging shaft of the brake lever 215, a working arm 215b at a different position, a lever holder 214, The adjustment mechanism must be provided between the adjustment bolts and the structure becomes complicated. In addition, the adjustment position of the adjustment bolt 222 must be locked by the lock nut 225 after adjustment by the adjustment knob 223. Needed a nut.

  Further, in the one disclosed in the cited document 3, even if the distance between the operation lever 304 and the operation lever 304 is small by offsetting the tip end side 304C of the operation lever 304 from L1 to L2 with respect to the grip G. Although the brake stroke can be secured, the stroke increase amount that can be secured only depends on the offset amount. Furthermore, the one disclosed in the cited document 4 includes a handle grip portion 412 having a small outer diameter and a unique bent brake lever 414, although there is no offset as in the cited document 3. In combination, the grip portion 412 and the brake lever 414 can be sufficiently grasped even by an infant with a small palm. However, the amount that can be grasped even by an infant with a small palm depends only on the diameter of the handle grip portion 412 and the shape of the brake lever 414. Further, in the one disclosed in the cited document 5, it is only in the vicinity of the movable part of the brake lever to which the cover 501 is attached that the risk of the fingers of passengers such as infants being caught or touching can be suppressed. There is a possibility that clothes or the like may be caught by an attaching portion or the like of the fixing tool 511 supporting the portion 512 to the handlebar.

  Therefore, the present invention solves the problems in the conventional brake lever adjusting device, has a simple structure with a small number of parts, and there is no risk of fingers or the like being caught between the adjusting portions, etc., and multi-stage adjustment work is easy. Therefore, an object of the present invention is to provide a brake lever adjusting device that can effectively prevent rattling of the lever.

  For this reason, the present invention has a brake lever swinging shaft in the vicinity of the grip, and a brake lever provided with an adjusting mechanism for adjusting a distance between the brake lever and the grip between the brake lever and the swinging shaft. In the adjusting device, an adjusting bolt having an adjusting knob and screwed to the swinging shaft or the brake lever is disposed between the brake lever and the swinging shaft. Further, the present invention is characterized in that a spring member also serving as a moderation mechanism, which is locked to a brake lever or a swing shaft, is attached to the adjustment bolt by elastically urging the adjustment knob. In addition, the present invention partially offsets the grip and the brake lever in front view so that the swinging locus of the brake lever in plan view overlaps with the grip, and the grip diameter is changed to the handlebar or the brake lever. On the other hand, it is characterized by being relatively smaller than a normal one. Further, the present invention is characterized in that the cross-sectional shape of the surface facing the grip at the offset portion of the brake lever is substantially matched with the grip outer diameter. Further, the present invention is characterized in that a fixing nut or an adjusting nut screwed into the adjusting bolt is disposed in a recess carved in the brake lever. The present invention is characterized in that a cover that covers the adjustment knob is attached to the brake lever. The present invention is characterized in that a cover that covers the movable part of the brake lever and the lever bracket mounting part of the brake lever is mounted on the lever bracket, and these are means for solving the problems.

  According to the present invention, the brake lever having the swing shaft of the brake lever in the vicinity of the grip, and the adjusting mechanism for adjusting the distance between the brake lever and the grip is provided between the brake lever and the swing shaft. In the adjusting device, an adjusting bolt having an adjusting knob and screwed to the swinging shaft or the brake lever is disposed between the brake lever and the swinging shaft, so that the adjusting bolt itself is moved to the swinging arm of the brake lever. It can be made to function as an adjustment mechanism, and the number of parts can be greatly reduced. In addition, an adjustment bolt that is easily adjusted by an adjustment knob and configured by an adjustment knob is screwed onto the swing shaft, so that Even if the retaining member is not provided, the swinging shaft does not come loose. Moreover, the bulk of the pivot shaft in the axial direction becomes compact by eliminating the retaining member.

  In addition, when the adjustment bolt is mounted with a spring member that also serves as a moderation mechanism that is locked to the brake lever or the swing shaft by elastically urging the adjustment knob, the spring member that is integrally assembled to the adjustment bolt However, it is possible to adjust the adjustment knob stepwise with moderation, eliminate the need for a lock nut like the conventional one, and absorb the backlash in the axial direction of the adjustment bolt, and the backlash of the brake lever As a result of a clever combination of the adjustment bolt to the adjustment bolt and the spring member, one member can exhibit several complex functions. Further, the grip and the brake lever are partially offset in front view so that the swing trajectory of the brake lever in plan view overlaps with the grip, and the grip diameter is relative to the handlebar and the brake lever. In general, when it is configured to be smaller than a normal one, a small-diameter grip configured for an infant with a small palm and the adjustment of the distance between the brake lever and the grip by the adjusting mechanism having the above-described configuration are performed. Even after a fine combination, a large brake stroke can be ensured by the offset even if the distance between the carefully selected brake lever and the grip is small.

  Furthermore, when the cross-sectional shape of the surface facing the grip at the offset portion of the brake lever is substantially matched to the grip outer diameter, the contact between the brake lever and the grip at the offset portion at the normal surface Since it can be delayed more than the thing, a larger brake stroke can be secured. Further, when a fixing nut or an adjusting nut screwed into the adjustment bolt is disposed in a recess carved in the brake lever, a fixing nut for fixing an end of the adjusting bolt on the brake lever side, or When the adjustment nut for adjustment is arranged on the brake lever side, the adjustment nut is not exposed to the outside of the brake lever and can be prevented from being damaged due to an external cause.

  Furthermore, when a cover that covers the adjustment knob is attached to the brake lever, mischief by an infant or the like with respect to the adjustment knob can be prevented. In addition, the adjustment knob that behaves almost the same as the brake lever can be securely mounted and fixed on the brake lever side, and the adjustment knob does not rotate unreasonably and the adjustment interval does not go wrong. It is also possible to effectively prevent pinching. Furthermore, when a cover that covers the movable part of the brake lever and the lever bracket mounting part of the brake lever is attached to the lever bracket, the rider is prevented from pinching fingers on the movable part of the brake lever. Since the lever bracket mounting portion and the like are also covered by the cover, there is no possibility that clothes or the like will be caught, and it is safe.

  Embodiments of the present invention will be described below with reference to the drawings. 1 to 8 show one embodiment of a brake lever adjusting device according to the present invention. FIG. 1 is a plan view before and after adjustment, FIG. 2 is an exploded perspective view, and FIG. 3 is a side view of a spring member. 4 is a side view of the adjusting bolt, FIG. 5 is a side view of the adjusting knob, FIG. 6 is a side view of the knob cover, and FIG. 7 is an end of the grip showing an offset state of the brake lever and the grip and a mounting state of the cover. FIG. 8 is a cross-sectional view of the adjusting mechanism shown in the longitudinal section of the adjustment range of the brake lever, the cover mounting state, and the adjusting bolt.

  Embodiments of the brake lever adjusting device of the present invention will be described in detail below. As shown in FIG. 1, the basic configuration of the brake lever adjusting device according to the present invention has a swing shaft 5 of the brake lever 6 in the vicinity of the grip 2. Further, in the brake lever adjusting device provided with the adjusting mechanism for adjusting the distance between the brake lever 6 and the grip 2, an adjusting knob 8 is provided between the brake lever 6 and the swing shaft 5, and the swing shaft is provided. 5 or an adjusting bolt 7 screwed to the brake lever 6 is provided. In the illustrated example, the adjusting screw portion of the adjusting bolt 7 is screwed perpendicularly to the swing shaft 5.

  As shown in FIG. 1, a grip (handle grip) 2 is attached to an end portion of the handle bar 1 (the example shown in the drawing shows only the right side of the handle bar 1, but the left side has the same configuration). Preferably, the end of the handlebar 1 to which the handle 2 is attached is narrowed to a small diameter, and the handle 2 having an outer diameter substantially the same as that of the handlebar 1 is attached and fixed to this portion. This small-diameter grip 2 is skillfully combined with the adjustment of the distance between the brake lever 6 and the grip 2 by an adjustment mechanism, which will be described later, so that it can be appropriately handled even when an infant with a small palm or the like is used. A lever bracket 4 is attached to the end of the handle bar 1 near the grip 2 by a split bracket 3. As can be understood from the overall perspective view of FIG. 2, the lever bracket 4 has a gate shape, and a pair of swinging shaft holes 4 </ b> A drilled in both leg portions together with the base of the swinging arm 11. A rocking shaft 5 of a brake lever 6 to be described later is pivotally supported via rocking bearings 17, 17, and the handlebar 1 is surrounded by a bracket 3 between the lower ends thereof, and mounting bolts 18 (FIG. 7A). (See). A proximal end portion 6B of the brake lever 6 and a Tyco receiver 12 are connected to the distal end portion of the swing arm 11 by a pin 14. An inner wire Tyco in the brake wire is inserted and locked to the Tyco receiver 12.

  An adjustment screw portion at one end of an adjustment bolt 7 in which an adjustment knob 8 is mounted so as not to rotate with respect to a screw tube portion (female screw portion) 5A cut perpendicular to the axial direction of the swing shaft 5. 7A (see FIG. 4) is screwed together. The swing shaft 5 functions as an adjustment nut. That is, by rotating the adjusting bolt 7 with respect to the swing shaft 5 and moving it forward and backward, the brake lever 6 screwed and fixed to the other end by the fixing nut 10 is swung around the pin 14. The swing position, that is, the distance of the brake lever 6 with respect to the grip 2 can be adjusted. More specifically, a spring member 9 made of a substantially U-shaped leaf spring attached to the adjustment bolt 7 is interposed between the brake lever 6 and the adjustment knob 8. A fixing screw portion 7B (see FIG. 4) at the other end of the adjusting bolt 7 is loosely inserted into a bolt hole 6D formed in the opposing surface of the brake lever 6, and is a recess engraved in the back of the bolt hole 6D. In 6C, the spring member 9 is screwed with the fixing nut 10 through the washer 13 in a state where the spring member 9 has an appropriate operation stroke.

  A locking projection 9E formed on the brake lever 6 side of the substantially U-shaped spring member 9 is locked in a locking hole 6E formed in the brake lever 6, and rotates with respect to the brake lever 6. There is no. On the adjustment knob 8 side of the spring member 9, a moderation protrusion, which will be described later in detail, is formed and adjusted with a click feeling (moderation feeling) in multiple steps with the moderation step formed on the side end surface of the adjustment knob 8. It can be rotated. In the case where the swinging shaft 5 side is used as the adjusting portion as in the embodiment, the screw member interposed between the adjusting knob 8 and the brake lever 6 is set by appropriately setting the screwing condition of the fixing nut 10. The spring force of 9 is set to prevent the rattling function properly, but the swinging shaft 5 side is the fixing bolt 7 fixing side, and the adjusting nut is provided on the brake lever 6 side. When the arrangement is reversed with respect to the example, the spring member 9 is interposed between the adjustment knob 8 and the swinging shaft 5 to provide a moderation mechanism and to exhibit a play prevention function. it can.

  FIG. 3 is a side view of the spring member. As shown in the perspective view of FIG. 3 (A), the spring member 9 formed in a substantially U shape by bending the leaf spring at the turn-back portion 9C is formed with the substrate portion 9A on the adjustment knob 8 side in the illustrated embodiment. As shown in FIGS. 3B and 3C, each has a large hole 9F and a hole 9G having a size for receiving the adjusting bolt 7, respectively. Drilled and inserted into the adjustment bolt 7. As shown in FIGS. 3D and 3E, a moderation protrusion 9B is formed at the upper end of the substrate portion 9A, and a number of moderation steps 8B engraved on the side end surface of the adjustment knob 8 to be described later are selected. Engage sequentially with a sense of moderation (click feeling). The spring plate 9D is formed with a locking projection 9E that locks in a locking hole 6E (FIG. 2) carved in a corresponding portion of the brake lever 6 so that the spring member 9 can be turned to the brake lever 6. It is configured to be immovably locked. FIG. 3 (F) is a plan view of the spring member 9, and the formation state of the moderation protrusion 9B and the locking protrusion 9E is clearly understood.

  FIG. 4 is a side view of the adjusting bolt. The adjusting bolt 7 is formed with a large-diameter circular flange portion 7D at a substantially middle portion thereof, and adjacent to it, the brake lever 6 side (the right side of the drawing) is non-circular (in the illustrated example, two opposite circular surfaces are cut in parallel). (Other appropriate non-circular shape) 7C is formed. A non-circular hole portion 8C formed corresponding to the center portion of the adjustment knob 8 to be described later is fitted and fixed to the non-circular step portion 7C without excess or deficiency. A fixing screw portion 7B is engraved on the brake lever 6 side of the circular flange portion 7D, and the spring member 9 is appropriately actuated by the fixing nut 10 which is loosely inserted into the bolt hole 6D of the brake lever 6 and has a retaining function. Screwed in a stroked state. An adjusting screw portion 7A is engraved on the swing shaft 5 side of the circular flange portion 7D, and is screwed into and out of the screw tube portion 5A of the swing shaft 5 serving as the insert adjusting nut. 7, that is, the position of the brake lever 6 is adjusted.

  FIG. 5 is a side view of the adjustment knob. As shown in FIGS. 5 (A) and 5 (C), the outer periphery of the adjustment knob 8 is provided with an uneven portion 8A for preventing slipping when operated with fingers, and as shown in FIG. A non-circular hole portion 8 </ b> C that is fitted to the non-circular step portion 7 </ b> C of the adjustment bolt 7 is formed in the inner peripheral portion. As shown in FIGS. 5D and 5E, the flange step 8D for receiving the circular flange 7D of the adjusting bolt 7 is provided on the end surface of the adjustment knob 8 on the swing shaft 5 side (the upper side in FIG. 5E). Are formed, and a large number of moderation step portions 8B are engraved on the end surface of the brake lever 6 side (the lower side in FIG. 5E). The moderation protrusions 9B of the spring member 9 are selectively engaged with these moderation step portions 8B, and the adjustment knob 8 can be adjusted and stopped in multiple steps with a sense of moderation. Due to the biasing force in the axial direction of the adjusting bolt 7 by the spring member 9, the pivoting position of the adjustment knob 8 causes the biasing step between the moderation step 8B in the adjustment knob 8 constituting the moderation mechanism and the moderation protrusion 9B in the spring member 9. As a result, the adjustment bolt 7 can be effectively prevented from rotating from the adjustment position in a loose manner without a lock nut, and also has a function of preventing the brake lever 6 from rattling. Therefore, it greatly contributes to the reduction of parts.

  1 and 2 show the adjustment state of the adjustment mechanism configured as described above. In the state of FIG. 1 (A), the adjustment knob 8 is adjusted to screw the adjustment bolt 7 onto the swing shaft 5. This shows an adjustment state in which the brake lever 6 is retracted from the joint, and is a state in which the brake lever 6 is most isolated from the grip 2. On the contrary, the state of FIG. 1B shows an adjustment state in which the adjustment knob 8 is adjusted and the adjustment bolt 7 is screwed deeply into the swing shaft 5. It is a close state. The state of FIG. 1 (A) is suitable for a passenger with a relatively large palm, and the state of FIG. 1 (B) is suitable for a passenger with a relatively small palm. In addition to the adjustment of the distance between the small-diameter grip 2 and the brake lever 6 by the adjustment mechanism (the swing shaft 5, the adjustment bolt 7, the adjustment knob 8, the spring member 9, and the fixing nut 10), the grip 2 described later. With the unique cross-sectional shape of the offset portion of the brake lever 6 with respect to the above, an optimal lever interval and brake operation stroke are ensured for even a small-sized infant or the like who rides, so that safe and proper brake operation can be performed.

  FIG. 6 is a side view of the knob cover. As shown in FIGS. 6 (A) and 6 (B), the knob cover 15 is suspended downward from both sides of the knob cover portion 15A and the substrate portion 15B that are slightly curved upward (see FIG. 6 (E)). It is comprised from the latching leg part 15C. A retaining claw portion 15E for retaining is formed at the lower end portion of the locking leg portion 15C. As shown in FIG. 6C, the knob cover portion 15A is curved upwardly in a circular arc shape even when viewed from the front, and as shown in FIG. A gentle shape change is adopted to be formed and adapted to the outer peripheral shape of the adjustment knob 8. As shown in FIGS. 6B, 6E, and 6F, a semicircular guide portion 15D is formed on the lower surface of the substrate portion 15B. As shown in FIG. 8C, the knob cover 15 configured as described above is mounted by inserting and locking the locking leg 15C into the recess 6C of the brake lever 6 in which the fixing nut 10 is accommodated. At that time, the guide portion 15D is attached to the inner wall of the recess 6C. The retaining claw 15E at the lower end of the locking leg 15C protrudes from the lower surface of the brake lever 6 along the rear surface and is prevented from coming off.

  FIG. 7 is a side view and a plan view of the offset state of the brake lever and the grip and the mounting state of the cover as seen from the end of the grip. As shown in FIG. 7 (B), the configuration is such that the swinging locus in plan view of the brake lever 6 partially overlaps the grip 2. Then, as shown in FIG. 8A, the grip 2 and the brake lever 6 are partially offset in front view (FIG. 8A is displayed upside down with respect to FIG. 7). Of course, in the embodiment, the diameter of the grip 2 is relatively smaller than the normal one relative to the handlebar 1 and the brake lever 6. Further, as shown in FIG. 7A which is a side view seen from the end of the grip, the cross-sectional shape of the surface of the offset portion 6A of the brake lever 6 facing the grip 2 is changed to the outer diameter of the grip 2. Since the contact between the opposing surfaces of the brake lever 6 and the grip 2 at the offset portion 6A can be delayed from that of the normal cross section, a larger brake stroke can be secured. The offset of the brake lever 6 with respect to the grip 2 is not limited to the embodiment in which the front end side of the brake lever 6 is bent in front view as shown in FIG. You may make it cross with the (horizontal) surface where 2 belongs.

  FIG. 8 is a cross-sectional view of the adjustment mechanism shown in the vertical section of the adjustment range of the brake lever, the mounting state of the cover, and the adjusting bolt. Reference numeral 16 denotes a base cover, which includes a movable part cover part 16A and a bracket attachment part cover part 16B. 8A, as described above, the state in which the grip 2 and the brake lever 6 are partially offset in front view can be clearly understood, and the lever bracket 4 (FIG. 1) can be handled via the split bracket 3. A bracket mounting portion cover portion 16B that covers the lever bracket mounting portion that is fixed to the bar 1 and a movable portion cover that covers the movable portion of the brake lever 6 (such as the vicinity of the pin portion or the intersection between the adjusting bolt 7 and the swing arm 11). The front view related structure with the part 16A is clearly shown. FIG. 8B shows the adjustment range by adjusting the brake lever 6. Due to the presence of the base cover 16 and the adjustment knob cover 15, the hand of the passenger such as an infant can attach the movable part of the brake lever 6 and the lever bracket 4. It is effectively prevented that the finger is brought into contact with the adjustment knob 8 and rotated by contact of the finger with the adjustment knob 8 and the adjustment position is changed to a paranoia. Further, the adjustment knob cover 15 can prevent mischief of the adjustment knob 8 by an infant. If one side of the adjustment knob 8 is covered, the operation is remarkably hindered for an infant, so that the effect of preventing mischief can be greatly expected with a simple structure. 8C is a cross-sectional view taken along the line C-C of FIG. 8B. In addition to understanding the mounting state of the adjusting knob cover 15 in the recess 6C of the brake lever 6, the screw of the adjusting bolt 7 to the swing shaft 5 is understood. The engagement state, the engagement state of the fixing nut 10 to the adjustment bolt 7 in the recess 6C of the brake lever 6 and the like are clearly understood.

  Although the embodiments of the present invention have been described above, the shape of the handlebar and the grip (with respect to the diameter thereof is approximately the same as that of the handlebar in the embodiment, within the scope of the present invention. ), Type, brake lever shape (overall shape in plan view, such as an arc shape convex to the grip side), type, rocking shaft shape (solid to engrave the screw cylinder for adjustment) However, it may be hollow if a female screw can be formed), type, shape of adjusting knob, type, shape of adjusting bolt, type, screwed form with swing shaft of adjusting bolt and fixing nut, To the mounting form with the adjustment knob via a non-circular stepped portion (in addition to those having the two-surface portions of the embodiment, square, polygonal, elliptical, etc.), the shape and type of the spring member and its brake lever or swing shaft Locking form (one In addition to the stop protrusion and the locking hole, a plurality of protrusions and holes may be combined), the locking mode of the moderation mechanism configured between the spring member and the adjustment knob (the spring member side is the moderation step) The adjustment knob side may be a moderation protrusion), the offset form between the grip and the brake lever, the relative size of the grip diameter with respect to the handlebar and brake lever, and the cross-sectional shape of the surface facing the grip at the offset part of the brake lever ( It is preferable that the offset part of the brake lever has a cross section that is substantially equal to the outer shape of the grip, but if the brake stroke can be secured to some extent, their curvatures do not have to match), and are fixed to be screwed to the adjusting bolt. Arrangement form of nut or adjustment nut in recess in brake lever, shape and form of adjustment knob cover, and attachment form to brake lever (Example) In addition to the one-touch type, screws may be used), the shape and type of the base cover that covers the moving part of the brake lever and the lever bracket mounting part of the brake lever, and its mounting form (preferably avoiding the brake wire and handlebar) Etc.) can be selected as appropriate.

1 shows one embodiment of a brake lever adjusting device of the present invention, and is a plan view before and after adjustment. FIG. It is each side view of a spring member. FIG. 4 is a side view of the adjusting bolt. It is each side view of an adjustment knob. It is each side view of a knob cover. It is the side view and top view seen from the edge part direction of the grip which shows the offset state of a brake lever and a grip, and the mounting state of a cover. FIG. 4 is a cross-sectional view of the adjustment mechanism shown in the vertical cross section of the adjustment range of the brake lever, the cover mounting state, and the adjustment bolt. It is explanatory drawing of the operation lever position adjustment mechanism of the vehicle which is a 1st prior art example. It is explanatory drawing of the hydraulic master cylinder apparatus for vehicles which is a 2nd prior art example. It is explanatory drawing of the operation lever for two-wheeled vehicles which is a 3rd prior art example. It is explanatory drawing of the handle structure for bicycles which is a 4th prior art example. It is explanatory drawing of the brake lever with a cover which is a 5th prior art example.

Explanation of symbols

1 Handle bar 2 Grip 3 Split bracket 4 Lever bracket 5 Oscillating shaft (insert adjustment nut)
6 Brake lever 7 Adjustment bolt 8 Adjustment knob 9 Spring member 10 Fixing nut 11 Swing arm

Claims (7)

A brake lever adjusting device having a swing shaft of a brake lever in the vicinity of the grip, and an adjusting mechanism for adjusting a distance between the brake lever and the grip between the brake lever and the swing shaft. A brake lever adjusting device having an adjustment knob between the lever and the swinging shaft and having an adjusting bolt screwed into the swinging shaft or the brake lever. The brake lever adjusting device according to claim 1, wherein a spring member serving as a moderation mechanism, which is locked to a brake lever or a swing shaft, is attached to the adjusting bolt by elastically urging the adjusting knob. . The grip and brake lever are partially offset in front view so that the swinging locus of the brake lever in plan view overlaps with the grip, and the grip diameter is relative to the handlebar and brake lever. 3. The brake lever adjusting device according to claim 1, wherein the brake lever adjusting device is smaller than a normal one. 4. The brake lever adjusting device according to claim 3, wherein a cross-sectional shape of a surface facing the grip at the offset portion of the brake lever is substantially matched with a grip outer diameter. The brake lever adjusting device according to any one of claims 1 to 4, wherein a fixing nut or an adjusting nut screwed into the adjusting bolt is disposed in a recess formed in the brake lever. The brake lever adjusting device according to any one of claims 1 to 5, wherein a cover that covers the adjusting knob is attached to the brake lever. The brake lever adjusting device according to any one of claims 1 to 6, wherein a cover that covers the movable portion of the brake lever and the lever bracket mounting portion of the brake lever is attached to the lever bracket.

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