JPH0437833Y2 - - 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) Conventionally, there is a brake lever device for bicycles as shown in Fig. 6.
(see publication).

In this case, a housing 42 is fixed to a handlebar 41, and a base 44 of a brake lever 43 is rotatably attached to the housing 42 via a support shaft 45. Also, brake lever 4
The grip portion 46 of No. 3 is opposed to the handlebar 41, and the handlebar 41 is provided at the front of the housing 42.
A bolt 47 for adjusting the lever opening width that comes into contact with the front surface of the base is screwed through and is provided so as to be freely movable forward and backward. By adjusting the rotation of this bolt 47, the brake lever 43 is rotated around the support shaft 45.
The distance d between the grip portion 46 and the handlebar 41 can be adjusted to suit the size of the bicycle rider's hands.

(Problems to be Solved by the Invention) In the conventional structure described above, the amount of movement of the bolt 47 in one rotation is extremely small. Therefore, when it is desired to greatly change the distance d between the grip portion 46 and the handlebar 41, a considerable amount of rotation of the bolt 47 is required, and this adjustment work is time-consuming and extremely troublesome.

Therefore, an object of the present invention is to provide a brake lever device that can quickly and easily adjust the distance between the handle lever and the handlebar.

(Means for Solving the Problem) The technical means taken by the present invention to achieve the above object is that the brake lever 13 is rotatably attached to the housing 1 fixed to the handlebar 8 via the support shaft 16. In the brake lever device, an engaging portion is provided on one of the housing 1 and the brake lever 13 at a distance from the support shaft 16, and the other has an engaged portion that engages with the engaging portion.A slide member 22. is provided to be slidable in one direction on a plane substantially orthogonal to the axis of the support shaft 16 and to be able to regulate its position, and one of the engaging portion and the engaged portion is caused by the sliding of the slide member 22. It is formed by an abutment surface 27 arranged in an inclined direction with respect to the sliding direction of the slide member 22 so as to abut the other and rotate the brake lever 13 about the support shaft 16 .

(Operation) The operation will be explained using an example in which the engaged portion of the present invention is formed by the contact surface 27.

In a state where the position of the slide member 22 is restricted, the engaging portion 29 is in contact with the contact surface 27, and a distance D between the handlebar 8 and the brake lever 13 is set. When the slide member 22 is slid from this state, the engaging portion 29 relatively slides on the contact surface 27. At this time, the contact surface 27 is
Since the engaging portion 29 is arranged in an inclined direction with respect to the sliding direction of the brake lever 2 and the engaging portion 29 is provided at a distance from the support shaft 16, the brake lever 13 rotates around the support shaft 16 and engages with the handlebar 8. The distance D from the brake lever 13 becomes narrower or wider.

(Example) Hereinafter, an example of the present invention will be described based on the drawings shown in FIGS. 1 to 5.

Fig. 1 shows a side sectional view of a brake lever device adopted for a bicycle, and 1 is a housing, which is formed into a hollow shape by front and rear walls 2, 3 and left and right side walls 4, 4, and has a support wall in the middle part. 5. A bolt 7 that is screwed into a nut body 6 passes through the support wall 5, and a fastening band 9 that holds the handlebar 8 is attached to the nut body 6. The housing 1 is fixed to the handlebar 8. In addition, the supporting wall 5
The outer wire 12 of the Bowden cable 11 is inserted into and supported by the outer support 10.
The ends are supported. The Bowden cable 1
1 passes through the handlebar 8 from the lower end of the housing 1 and is linked to a brake lever device (not shown).

A lower part of a base part 14 of a brake lever 13 having a U-shaped cross section is inserted into the upper part of the housing 1, and a grip part 1 of the brake lever 13 is inserted into the upper part of the housing 1.
5 is opposed to the handlebar 8. The rear lower part of the base 14 is pivotally supported by a support shaft 16 that passes through the upper part of the rear wall 3 of the housing 1 in a direction substantially perpendicular to the front-rear direction, so that the brake lever 13 is centered on the support shaft 16 with respect to the housing 1. It is said to be rotatable. In addition, the inner wire 17 of the Bowden cable 11 is connected to the front lower part of the base 14, and by bringing the grip portion 15 close to the handlebar 8, the lever 13 is rotated about the spindle 16, and the inner wire 17 The vehicle is towed and the brake system is activated. Note that the housing 1 is provided with a waterproof rubber cover body 31 to cover the outer surface.

A rectangular recess 18 is formed at the upper end of the outer surface of one side wall 4 of the housing 1, and a notch 19 is formed at the upper end of the recess 18. In the front part of the lower wall surface 18a of the recess 18, there are three arcuate grooves 20 in the front and back direction.
is formed, and an elongated hole 21 that is long in the front-rear direction is formed penetratingly in the middle of the bottom wall 18b in the vertical direction.

A slide member 22 is provided within the recess 18 . The slide member 22 is made of an elastic material such as synthetic resin, and has the same thickness as the depth of the recess 18 . A sliding portion 23 inserted into the elongated hole 21 is protrudingly provided in the middle of the back surface of the sliding member 22 in the vertical direction. This sliding part 2
3 has an oval cross-section to prevent the sliding member 22 from rotating, and the protruding end of the sliding portion 23 is provided with a retaining portion 2.
4 is provided, and the retaining portion 24 is attached to the side wall 4 of the housing 1.
The slide member 22 is prevented from coming off by engaging with the inner surface of the slide member. Then, by pushing the slide member 22 in the front-rear direction with a finger or the like, the slide portion 2
3 slides in the elongated hole 21, and the slide member 22 is movable only in the front and rear directions.

A leg portion 25 is integrally formed at the lower end of the slide member 22, and a position regulating portion 26 is provided at the end of the leg portion 25, and the position regulating portion 26 is vertically displaced by elastic deformation of the leg portion 25. It is said to be free. Then, the position regulating portion 26 fits into the groove 20 of the recess 18, so that the position of the slide member 22 can be regulated. The position regulating portion 26 separates from the groove 20 by sliding the slide member 22 in the front-rear direction against the elasticity of the leg portions 25, thereby allowing the slide member 22 to move back and forth.

A contact surface (engaged portion) 27 is provided protruding from the upper part of the back surface of the slide member 22 in correspondence with the notch 19 . This abutting surface 27 is formed into a step-like shape by three flat surfaces 28 parallel to the sliding direction of the slide member 22 and a stepped portion 30 . The flat surface 28 is arranged away from the elongated hole 21 from the front to the rear, that is, the contact surface 27 is arranged in an inclined direction with respect to the sliding direction of the slide member 22. Note that the flat surface 28 may be arranged away from the elongated hole 21 from the rear to the front.

At one end of the brake lever base 14, a cylindrical abutting projection (engaging portion) 29 is provided to protrude from the flat surface 28 of the abutting surface 27.

In FIG. 5, when the position regulating portion 26 of the slide member 22 is in the rearmost groove 20, the protrusion 29 is in contact with the frontmost flat surface 28 and is in contact with the stepped portion 30 of the contact surface 27. is also in contact. When the slide member 22 is slid forward from this state, as shown by the imaginary line in FIG.
is separated from the groove 20, and the protrusion 29 is pressed by the stepped portion 30 and rides on the next flat surface 28. As a result, the brake lever 13 is rotated about the support shaft 16 by the amount of the difference in level between the flat surfaces 28, and the grip portion 15
The distance D between the handlebar 8 and the handlebar 8 becomes narrower. Then, when the slide member 22 is further slid forward, the position regulating portion 26 fits into the intermediate groove 20 as shown in FIG. 5, and the position of the slide member 22 is regulated. When the slide member 22 is further slid forward, the same operation as described above is performed, resulting in the state shown in FIG. 5, and the distance D becomes the narrowest.
Furthermore, in order to widen the interval D, the operation opposite to the above may be performed.

Note that the contact surface 27 may be inclined with respect to the sliding direction of the slide member 22.

In addition, the slide member 22 is attached to the brake lever 13.
A protrusion 29 serving as an engaging portion is provided on the housing 1.
The engaging portion may be formed by the contact surface 27,
The engaged portion may be a protrusion 29. Furthermore, the number of flat surfaces 28 and grooves 20 can be changed as appropriate.

(Effect of the invention) According to the invention, by sliding the slide member 22, the engaging part or the engaged part formed by the contact surface 27 arranged in a direction inclined with respect to the sliding direction One of the two contacts the other, causing the brake lever 13 to rotate around the support shaft 16, and thereby,
Distance D between handlebar 8 and brake lever 13
Since the structure allows adjustment of the distance between the handlebar and the brake lever, the distance between the handlebar and the brake lever can be adjusted quickly and easily compared to the conventional method of adjusting the distance between the handlebar and the brake lever by rotating a bolt.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention, in which FIG. 1 is an overall side sectional view of the brake lever device, FIG. 2 is an enlarged view of the main parts, and FIG. 3 is the same as in FIG. 4 is an exploded perspective view, 5
Figures 1 and 2 are explanatory views of the operating state of the embodiment, and Fig. 6 is an overall side view showing the conventional example. 1...Housing, 8...Handlebar, 13
... Brake lever, 16 ... Support shaft, 22 ... Slide member, 27 ... Contact surface (engaged part), 28
...Flat surface, 29...Protrusion (engaging portion).

Claims (1)

[Claims for Utility Model Registration] In a brake lever device in which a brake lever 13 is rotatably attached to a housing 1 fixed to a handlebar 8 via a support shaft 16, one of the housing 1 and the brake lever 13 is supported. A slide member 22, which has an engaging portion spaced apart from the shaft 16 and an engaged portion that engages with the engaging portion on the other hand, slides in one direction on a plane substantially perpendicular to the axis of the support shaft 16. It is provided to be movable and position regulated, and one of the engaging part and the engaged part comes into contact with the other by sliding of the slide member 22 to rotate the brake lever 13 about the support shaft 16. A brake lever device characterized in that it is formed with an abutment surface 27 arranged in an inclined direction with respect to the sliding direction of the slide member 22.