JPH0439109Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to an improvement of a brake operating lever for two-wheeled vehicles that provides a more comfortable finger feel when operating the brake.

[Conventional technology]

In order to improve the feel of the finger on the brake control lever when operating the brake, it is possible to mold a wave-shaped unevenness that follows the shape of the finger gripping the finger on the finger contact part of the lever, but this does not allow the pitch to be constant. However, it has the disadvantage that it does not fit well in the hands of people with small or large hands. For example, in Japanese Utility Model Application Publication No. 60-105590, an elastic contact body is integrally provided on the outer surface of the finger contact area during brake operation of the lever body, and an elastic contact body is provided between the elastic contact body and the outer surface of the finger contact area. A configuration is disclosed in which a space is provided that allows the contact body to be elastically deformed, and the contact body is deflected in accordance with the degree of force applied by a finger during a brake operation.

[Problem that the invention attempts to solve]

In the above configuration, the elastic contact body can be deflected at the part where the force of the finger is applied, but the space and the outer surface of the finger contact area that receives this are horizontal, and only the elastic contact body is deflected. Since the finger is hooked on the lever, there is no unevenness that follows the shape of the finger, and there is a drawback that the operating finger cannot feel that it fits securely on the lever. This idea was created as a result of intensive research in order to solve the above-mentioned drawbacks, and its main problems are:
To provide a brake operation lever which deflects a part contacted by a finger when a finger force is applied to the lever and securely locks at least one of the fingers to enhance the feeling of fitting.

[Means to solve the problem]

In order to solve the above-mentioned problems, this invention provides a brake operating lever with a space for elastic deformation that opens laterally inside the elastic finger contact surface provided on the bottom side of the brake operating lever. (a) A plurality of spaces are separated and arranged, and the space has a substantially mountain-shaped cross section that becomes narrower toward the inside; (b) A support wall is formed at the center of the space in the width direction to partition the space. This is a technical measure taken.

[Effect]

When force is applied to the finger gripping the brake control lever during braking, the part of the finger contact surface that is subjected to the force is elastically deformed within the chevron-shaped space, causing the surface that the finger contacts to elastically deform into a wave shape. can. Therefore, the finger gripping the operating lever is securely latched by the wave-shaped recess formed in the finger contact surface, so that the operating lever can perform the braking operation in unison with the hand. Further, since a support wall is provided in the space, the finger contact surface returns to its original flat plane due to repulsive force when the force from the finger is removed.

【Example】

A preferred embodiment of the brake operating lever of this invention will be described below with reference to the drawings. In the present invention, the structure of the brake operating lever 1 is not particularly limited, but in this embodiment, as an example, as shown in FIG. At the same time, an operating lever 1 built into the cover body 7 is used. That is, first, the core metal 10 is approximately L as shown in FIG.
It is made of a single plate-shaped metal material that forms a letter shape. This core metal 10 has a hole 2 for inserting the pivot pin 11.
A, a holder receiving hole 4A, and a locking hole 4B are transparent. Next, the engager holder 30 held on the core metal 10
is made of a plastic material with excellent lubricity (for example, nylon or polyacetal), and has an engaging element receiving wall 32 and an engaging piece 34 protruding from one side of the base plate 31, as shown in FIG. That is, the substrate 31 has a surface 3 along the side surface of the core metal 10.
1' on one side, an engaging element receiving wall 32 is provided protruding from the front thereof, and an engaging piece 34 having a rectangular cross section is provided protruding from the rear in the same direction. Here, the engaging element receiving wall 32 has a substantially arc-shaped cross section, the rear and protruding side surfaces are open, and the inner circumferential surface is curved so that the engaged element of the stored brake wire can slide and rotate during braking. The surface is 33A. In the illustrated example, the cross section of the curved surface 33A is set to match the locus of a circle having a slightly larger diameter than the diameter of the engager 20 to be accommodated. A groove 31 with a circular cross section is bored along the circular locus on the substrate side in the extending direction of the curved surface 33A.
A is drilled. Then, as shown in FIG. 5, the curved surface 33A
The engaging element receiving surface 33 is formed by the curved surface 33B of the groove 31A that extends in series. Further, a substrate 31 is provided at the base end of the engaging element receiving wall 32.
A wire lead-out groove 35 is bored between the two. Therefore, the engager 20 of the brake wire 21 is
When the wire 21 is inserted from the open side of the engaging element receiving wall 32 and led out from the wire leading groove 35, the circumferential surface of the engaging element 20 having a circular cross section is evenly balanced on the curved surface 33A and the curved surface 33B of the groove 31A. can be done. In the illustrated example, the engaging element holder 30 has a shape in which a reinforcing rib is provided at the center of the base plate 31, so the groove 36 is bored so as not to interfere with the bracket 12. The core member 1 with the engaging element holder 30 locked in this manner is fitted into the cover body 7 together with the bracket 12. The upper end side of the bracket 12 is formed in a curved shape along the front end side of the engaging element holder 30 which protrudes left and right around the core metal 10. Therefore, the side surfaces of the bracket 12 are arranged so as to be substantially flush with both side surfaces of the engager holder 30,
It is fitted into the hollow of the cover body 7 without any gaps. Next, the cover body 7 is made of a synthetic resin material with an excellent tactile feel, and a bag with an open front side is integrally formed with a holding part 8 into which the shaft part 2 of the core bar 10 is inserted. It has a structure. This cover body 7 has a pair of holes 8A transparently provided at the distal end sides of the holding parts 18 on both sides thereof at positions aligned with the holes 2A of the core bar 10 and the holes 12A of the bracket 12, and is fixed to the bicycle handlebar H. The bracket 12 is fixed to the handlebar H by the pivot pin 11 inserted from the outside of the belt 12B, and the core bar 10 and the cover body 7 are pivotally connected, and the brake operation lever 1 is pivoted to the bicycle handlebar H. It can be attached freely. Further, an L-shaped wire insertion hole 14 is bored at the front end of the bottom surface of the cover body 7. The elastic synthetic resin cover body 7 configured in this manner has a thick finger contact surface 7A formed on one side (bottom side), and a space 8 for elastic deformation that opens on the side surface. It is formed. That is, as is clear from FIGS. 1 and 2, the space 8
are opened in the width direction inside the finger contact surface 7A of the cover body 7, and in this embodiment, four are arranged at predetermined intervals along the lever extending direction. This space 8 has a substantially mountain-shaped cross section that opens on both sides of the cover body 7, and is arranged symmetrically so that it gradually becomes narrower toward the center in the width direction, and a support wall 9 is formed in the center. This separates the left and right openings. Since it is formed in this way, when the force of the finger is applied to the finger contact surface 7A of the cover body 7 as shown by the dotted line in FIG. is elastically deformed into a wave shape. Therefore, the fingers that are clenched are latched onto the finger contact surface 7A that has been deformed into a wave shape. At this time, regardless of the size of the finger, the finger bends a part of the wave shape of the space 8 into a concave shape along the shape of the finger, so that the finger is tightly fitted and latched onto the concave portion. In this way, each finger has a corresponding space 8
Since a similar force is applied within the range of , even if the distance between the fingers is different from the pitch of the space 8, elastic deformation occurs along the fingers at the point in the space 8 where the force is applied, and the fingers are locked. In addition, even if the fingers do not fit in all the spaces 8, even if at least one part is fitted, the finger contact surface 7A corresponding to the space 8 where no finger force is applied will not be depressed, so there will be no discomfort during use. Users will be able to obtain a sufficient sense of fit. Further, FIG. 6 shows a different embodiment of the space 8 of this invention. This space 8 is a surface 8A on the bottom side of the chevron-shaped shape.
Since the length is set longer than the width of the finger and it is continuous, if a finger touches even one part of the surface 8A on the base side, the finger contact surface 7A will extend into the space 8 with that finger as the center. Since it can be depressed along the oblique side of the chevron shape, each finger can be bent in a concave shape along the space 8 as long as it does not hit the boundary point between the spaces 8 and the adjacent spaces 8. As shown in FIG. 2, the space 8 is surrounded by an inner circumferential surface 8B that gradually curves downward toward the outside, so that the space 8 is surrounded by an inner circumferential surface 8B that gradually curves downward toward the outside, so that the space 8 is It can be made to fit even when it is on. When the finger grip is released after braking in this manner, the finger contact surface 7A, which has been deformed by crushing the space 8, can return to its original flat position due to the repulsive force of the support wall 9. Here, the support wall 9 is a factor in the elasticity of the finger contact surface 7, so by adjusting the thickness of the support wall 9, appropriate elasticity can be imparted to the finger contact surface 7. Furthermore, although the space 8 is provided in the cover body 7 in this embodiment, the shape and configuration of the cover body 7 is not particularly limited, and may be made of solid wood without a built-in core material. Examples of these are shown in FIGS. 7a and 7b. In the figure, the same components as those in FIG. 1 are given the same reference numerals and their explanations will be omitted. In other words, various design changes may be made without changing the gist of this invention.

[Effect of the idea]

As described above, according to this invention, since the space has a chevron-shaped cross section, if there is a space inside the finger contact surface where the force of the finger is applied to the lever, the part that the finger contacts will bend along the finger, and the space will be If the fingers are misaligned, the overlapping range can be bent (smaller) according to the depth of the space, and if there is no space, the finger contact surface will not bend and remain flat, so at least one of the fingers In addition to being able to securely hold the objects, the areas where the fingers do not touch are not deformed into uneven shapes, so there is no discomfort caused by uneven surfaces (negative factors), and the fit can be improved. Since a supporting wall was installed in the center of the width direction,
The elasticity of the finger contact surface can be increased to enhance the feeling of close contact, and when released, the finger contact surface can be quickly returned to the flat position by the repulsive force.

[Brief explanation of the drawing]

The drawing shows a preferred embodiment of this invention.
FIG. 1a is a side view showing the brake operation lever;
Figure 1b is the same front view, Figure 1c is the same plan view, and Figure 1c is the same plan view.
The figures are a cross-sectional view taken along the line -A in Fig. 1a, Fig. 3 is a side view showing the core metal, Fig. 4 is a perspective view showing the engager holder, Fig. 5 is a plan view of the same, and Fig. 6 shows the space. An explanatory diagram showing the effect when the lever is made larger, and FIG. 7 is a side view when a space is provided in a different brake operation lever.
b is a case where the cover body does not have a wrapping part. DESCRIPTION OF SYMBOLS 1... Brake operation lever, 7... Cover body, 7A... Finger contact surface, 8... Space, 8A... Bottom side surface, 8B... Inner peripheral surface, 9... Support wall, 10
... Core metal, H ... Handle.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A brake operating lever that has a space for elastic deformation that opens laterally inside an elastic finger contact surface provided on the bottom side of the brake operating lever, A brake for a two-wheeled vehicle, characterized in that a plurality of spaces are arranged, the spaces have a substantially mountain-shaped cross section that becomes narrower toward the inside, and a support wall is formed at the center in the width direction to partition the spaces. Operation lever. (2) The brake operating lever for a two-wheeled vehicle according to claim (1), wherein the space is surrounded by an inner circumferential surface that gradually curves downward and slopes outward.