JPH0437832Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a brake lever device for bicycles, motorcycles, etc.

(Prior art) As a conventional bicycle brake lever device, the one shown in Figs.
It is stated in the No.

In these devices, a brake bar 44 is rotatably attached to a fixing member 42 that is fitted and fixed to a handlebar 41 via a bracket 43, and an outer wire 46 of a Bowden cable 45 is attached to the bracket 43.
However, inner wires 47 are connected to the brake levers 44, respectively, and when the brake levers 44 are gripped toward the handlebar 41, the inner wires 47 are pulled to operate a brake device (not shown). By moving both the bracket 43 and the brake lever 44 with respect to the fixed member 42, the distance d between the brake lever 44 and the handlebar 41 can be adjusted to suit the size of the driver's hands. , thereby,
There is no need to adjust the distance between the rim of the brake device and the brake shoe.

In the one shown in FIG. 5, a cylindrical shaft 48 having a threaded hole is provided protruding from a fixed member 42, and a support shaft 49 for rotatably supporting a brake lever 44 is provided on opposing side walls 43a of a bracket 43. There is. The support shaft 49 is fitted into the protruding end of the cylindrical shaft 48 through the through hole 50, and the bracket 43 is attached to the fixing member 42 by the screwing of the mounting bolt 51 which is screwed into the threaded hole of the cylindrical shaft 48. Fixed. An adapter 52 that abuts the side wall 43a is provided between the handlebar 41 and the bracket 43, and the contact surfaces of the side wall 43a and the adapter 52 are formed into a circle having a large number of concave and convex portions that engage around the support shaft 49 so as to be freely repositionable. Arc-shaped engagement surface 5
3,53'.

In the case shown in FIG. 6, the bracket 43 is fixed to the fixing member 42 by a long hole 54 formed in the bracket 43 and a mounting bolt 55 passing through the fixing member 42, and the fixing member 42 directly contacts the bracket 43, so that the fixing member 42 and the bracket 43 are provided with arcuate engagement surfaces 53, 53' similar to those described above. The long hole 54 is connected to the handlebar 4.
The support shaft 49 is arranged parallel to the radial direction of the handlebar 41 at a position apart from the handlebar 41 in the longitudinal direction of the elongated hole 54, and the mounting bolt 55 is parallel to the support shaft 49. It is located. Then, loosen the bolt 55 and remove the bracket 43.
by moving the elongated hole 54 in the longitudinal direction of each engaging surface 5.
3 and 53', the position of the bracket 43 and the brake bar 44 can be changed around the bolt 55.

(Problem to be solved by the invention) In the conventional device, the brake lever 4
4 toward the handlebar 41 side, the inner wire 47 is pulled, and a force in the shearing direction by the brake lever 44 acts on the support shaft 49. For this reason, in the case of the former, the through hole 5 is provided in the support shaft 49.
Since 0 is formed, there is a problem with forcing,
In the case of the latter, the bracket 43 is movably fixed to the fixing member 42 by means of a mounting bolt 55 through an elongated hole 54, so that by grasping the brake lever 44, the elongated hole 54 is attached to the bracket 43. The force in the longitudinal direction of the bracket 43
may shift.

In addition, in the former case, the cylinder shaft 48 is attached to the fixed member 42.
A support shaft 49 is fitted into the projecting end of the support shaft 49.
9 are arranged parallel to the radial direction of the handlebar 41 at a position away from the handlebar 41, so that the amount of protrusion of the entire device from the handlebar 41 is large.

Furthermore, both types have a large number of parts, and therefore, it takes time and effort to assemble and disassemble the entire device, and the cost increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a brake lever device that adjusts the distance between the handlebar and the brake lever by moving both the bracket and the brake lever with respect to a fixed member, and that solves the above-mentioned problems. With the goal.

(Means for Solving the Problems) The technical means taken by the present invention to achieve the above object is that a fixing member 2 is fitted and fixed to the handlebar 1 through an insertion hole 6, and A brake lever 4 is rotatably provided via a bracket 3, and a Bowden cable 15 is connected to the bracket 3.
In the brake lever device in which the outer wire 16 is connected to the brake lever 4 and the inner wire 24 is connected to the brake lever 4, a support shaft 5 is provided in the insertion hole 6 of the fixing member 2 in a manner substantially orthogonal to the axis O, and the bracket 3 is connected to the support shaft 5. is connected to the fixing member 2 and the support shaft 5 through the shaft insertion hole 12.
The brake levers 4 are mounted so as to be rotatable around the support shaft 5, and the brake levers 4 are engaged with opposing surfaces of the fixing member 2 and the bracket 3 so as to be repositionable around the support shaft 5. A large number of depressions and depressions are formed around the support shaft 5 to restrict the position of the bracket 3 relative to the fixing member 2 around the support shaft 5.

(Function) According to the present invention, the fixed member 2 fixed to the handlebar 1 is provided with a support shaft 5 substantially perpendicular to the axis O of the insertion hole 6, and the bracket 3 and the brake lever are mounted on the support shaft 5. 4 is attached, the number of parts is reduced, and the amount of protrusion of the support portion of the Bowden cable 15 from the handlebar 1 is inevitably reduced.

Further, the bracket 3 is opposed to the fixing member 2 in the axial direction of the support shaft 5 through the shaft insertion hole 12, and is engaged with the opposing surfaces thereof so as to be repositionable around the support shaft 5, thereby fixing the bracket 3. Since a large number of irregularities are formed around the support shaft 5 to restrict the position of the member 2 around the support shaft 5, there is no need to process the support shaft 5, and the support shaft 5 of the brake lever 4 Bracket 3 does not shift due to rotation.

(Example) Hereinafter, an example of the present invention will be described based on the drawings shown in FIGS. 1 to 4.

In FIG. 1, reference numeral 1 denotes a handlebar of a bicycle, to which a fixing member 2 is fixed, and to this fixing member 2 a bracket 3 and a brake lever 4 are attached to a support shaft 5.
It is installed through.

As shown in FIG. 2, the fixing member 2 is formed into a substantially spherical shape and has an insertion hole 6 through which the handlebar 1 is inserted. A screw hole 7 for mounting the support shaft 5 is formed through the fixing member 2 in a direction perpendicular to the axis O of the insertion hole 6, and a chrysanthemum seat (unevenness) 8 is formed around the screw hole 7. ing. This chrysanthemum 8
are formed radially around the axis 5 on a plane perpendicular to the axis C of the screw hole 7. Furthermore, the fixing member 2 has a split groove 9 parallel to the chrysanthemum seat 8 surface.
is formed in the shape of an incision communicating with the insertion hole 6.
The fixing member 2 is fixed to the handlebar 1 by a tightening bolt 10 that crosses this groove 9. The head of the tightening bolt 10 is recessed into the head hole 11 and does not protrude from the outer peripheral surface of the fixing member 2.

The bracket 3 is arranged opposite to the chrysanthemum seat 8 of the fixing member 2, and has a shaft insertion hole 12 concentric with the screw hole 7.
is formed. The surface of this bracket 3 facing the fixing member 2 has a chrysanthemum seat (unevenness) that engages with the chrysanthemum seat 8 of the fixing member 2 around the axis of the shaft insertion hole 12.
13 are formed radially. Said chrysanthemum 8,1
The position of the bracket 3 around the support shaft 5 is restricted with respect to the fixed member 2 by the engagement of the three members, and the position around the support shaft 5 can be freely changed by shifting the engagement position around the support shaft 5. Further, a cylindrical outer receiving portion 14 is integrally formed on the bracket 3.
An outer wire 16 of a Bowden cable 15 is supported by the outer receiving portion 14 via an outer receiving sleeve 17. Note that the Bowden cable 15 is linked to a brake lever device (not shown).

The brake lever 4 has a mounting part 18 and a grip part 1.
9, and the mounting portion 18 is attached to the chrysanthemum seat 1 of the bracket 3.
The screw hole 7 of the fixing member 2 is arranged on the opposite side of the
A shaft through hole 20 is formed concentrically with. The grip portion 19 is arranged to face the handlebar 1. Further, a cylindrical inner receiving part 21 is integrally formed between the attachment part 18 and the gripping part 19, and the inner receiving part 21 is in contact with the outer receiving part 14. A cylindrical adjusting screw 22 and an adjusting nut 23 are provided in the inner receiving portion 21, and the adjusting screw 22 is moved in the axial direction by rotation of the adjusting nut 23. An inner wire 24 is connected to the adjustment screw 22. Then, by gripping the grip part 19 of the brake lever 4 toward the handlebar 1 side, the inner wire 2
4 is towed and the brake system is activated.

A threaded portion 25 is formed at the tip of the support shaft 5 , and the threaded portion 25 passes through the shaft insertion hole 12 and the shaft penetration hole 20 and is screwed into the screw hole 7 of the fixing member 2 .

In the above configuration, in order to adjust the distance D between the grip part 19 of the brake lever 4 and the handlebar 1, loosen the support shaft 5 and adjust the engagement position between the chrysanthemum seat 8 of the bracket 3 and the chrysanthemum seat 13 of the fixing member 2. shift. Then, the brake lever 4 is also repositioned around the support shaft 5 together with the bracket 3, and the distance D becomes narrower or wider.

In addition, instead of the chrysanthemum seat 13 of the bracket 3, a large number of engagement holes are formed on the same circumference around the support shaft 5 and at equal pitches, and instead of the chrysanthemum seat 8 of the fixing member 2, the above-mentioned engagement holes are formed. An engaging protrusion that fits into a matching hole may be formed. In this case, the engaging hole may be formed on the fixing member 2 and the engaging protrusion may be formed on the bracket 3. Also,
A grooved shaft such as a spline shaft or a serration shaft may be provided on one of the fixing member 2 and the bracket 3 coaxially with the support shaft 5, and a groove may be formed on the other to fit the grooved shaft. .

(Effect of the invention) According to the invention, the support shaft 5 is provided in the fixing member 2 in a manner substantially perpendicular to the axis O of the insertion hole 6, and the bracket 3 is attached to the support shaft 5 through the shaft insertion hole 12 to the fixing member. 2 and the support shaft 5 are provided to face each other in the axial direction, and the brake lever 4 is mounted rotatably around the support shaft 5, and the position of the brake lever 4 is changed around the support shaft 5 on the facing surface of the fixing member 2 and the bracket 3. Bracket 3 can be engaged
Since a large number of irregularities are formed around the support shaft 5 to regulate the position of the fixing member 2 around the support shaft 5, there is no need to process the support shaft and reduce its strength as in the past. , the bracket will not shift or move due to gripping the brake lever. Furthermore, the amount of protrusion of the support portion of the Bowden cable 15 from the handlebar 1 can be reduced to make it compact. Furthermore, the number of parts can be reduced, which makes it easier to assemble and disassemble the entire device, and it is also possible to reduce costs.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is an overall front view, FIG. 2 is an exploded perspective view, FIG. 3 is a sectional view taken along the - line in FIG. 1, and FIG. 5 is a partially cutaway rear view, and FIGS. 5 and 6 are partially cutaway front views showing a conventional example. 1...Handlebar, 2...Fixing member, 3...
Bracket, 4... Brake lever, 5... Support shaft, 6... Insertion hole, 12... Shaft insertion hole, 15...
Bowden cable, 16... Outer wire, 24
...Inner wire, O...Axis center.

Claims (1)

[Scope of utility model registration request] A fixing member 2 is fitted onto the handlebar 1 through an insertion hole 6, and a bracket 3 is attached to the fixing member 2.
In the brake lever device, the brake lever 4 is rotatably provided through the brake lever 4, and the outer wire 16 of the Bowden cable 15 is connected to the bracket 3, and the inner wire 24 is connected to the brake lever 4. A support shaft 5 is provided substantially perpendicular to the center O, and a bracket 3 is provided on this support shaft 5 through a shaft insertion hole 12 so as to face the fixing member 2 in the axial direction of the support shaft 5. is attached rotatably around the support shaft 5, and is engaged with the opposing surfaces of the fixing member 2 and the bracket 3 so that their positions can be changed around the support shaft 5, so that the bracket 3 is attached to the fixing member 2.
A brake lever device characterized in that a large number of concave and convex portions are formed around the support shaft 5 for positionally regulating the support shaft 5.